WEB-BASED PROMISE ARRAY MANAGEMENT (WEBPAM) USER MANUAL Version 1.
WebPAM User Manual Copyright © 2003 Promise Technology, Inc. Copyright by Promise Technology, Inc. (Promise Technology). No part of this manual may be reproduced or transmitted in any form without the expressed, written permission of Promise Technology. Trademarks Promise, and the Promise logo are registered in U.S. Patent and Trademark Office. All other product names mentioned herein may be trademarks or registered trademarks of their respective companies.
WebPAM User Manual Contents Chapter 1: Introduction ...................................................................................... 1 WebPAM Components ............................................................................... 1 How They Work Together........................................................................... 2 WebPAM Installation Options..................................................................... 3 Chapter 2: Installation ...............................................
WebPAM User Manual Enclosure View ................................................................................... 39 Enclosure ............................................................................................ 40 Event Window ..................................................................................... 40 Banner ................................................................................................. 41 Chapter 5: RAID Monitoring and Management with WebPAM ....................
WebPAM User Manual RAID 5 - Block and Parity Striping ........................................................... 82 RAID 30 - Striping of Dedicated Parity Arrays ........................................ 83 RAID 50 - Striping of Distributed Parity Arrays ....................................... 83 JBOD - Single Drive .................................................................................. 84 Supported RAID Levels ............................................................................
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Chapter 1: Introduction The Web-Based Promise Array Management Web (WebPAM) software is an application designed specifically for monitoring and managing Promise Technology RAID products. Promise includes RAID management utilities with many of its products, including: • UltraTrak SX4000/SX8000 • UltraTrak RM4000/RM8000/RM15000 • SuperTrak 100/SX6000 Promise includes RAID management utilities with many of its products. But those utilities run on a personal computer with an internal RAID or one attached to it.
WebPAM User Manual CIMOM Agent – The CIMOM Agent runs on the PC that controls the RAID (RAID PC). It directly monitors the RAID and sends messages through the Utility Server to all connected browser PCs. CIMOM stands for Common Information Model (a protocol) Object Manager (server software that implements the protocol). How They Work Together The Promise Array Management Web Utility (WebPAM) utility provides an easy way to set up, monitor and modify your RAID.
Chapter 1: Introduction WebPAM Installation Options Following are some examples of ways you can incorporate WebPAM into your network and RAID systems.
WebPAM User Manual A networked PC + Internet browser A networked PC + Internet browser, Utility Server Company LAN ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… PC with SuperTrak card + CIMOM Agent Figure 2. RAID PC and UltraTrak RAID Subsystem + CIMOM Agent An example of a Company LAN without a File Server. In the above example, there are two Promise RAID products connected to the company’s LAN, the same as before.
Chapter 2: Installation To install Web-Based Promise Array Management (WebPAM) software is an uncomplicated procedure, once you understand your systems and how you want to use WebPAM. The purpose of this Chapter is to help you plan and carry out your installation of WebPAM.
WebPAM User Manual Modem Internet Home-based PC + Internet browser Laptop computer + Internet browser Router & Firewall Network File Server + Utility Server A networked PC + Internet browser Company LAN ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… ……… PC with SuperTrak card & Internal RAID array + CIMOM Agent RAID PC with UltraTrak RAID Subsystem + CIMOM Agent Figure 3. Networked RAID has many installation options.
Chapter 2: Installation Operating System Support WebPAM is a utility designed to run on top of previously installed SuperTrak and UltraTrak RAID products. Generally, if your PC runs the SuperTrak or UltraTrak properly, it will run WebPAM also. Note, however, that this version of WebPAM does not run on Linux. Promise Technology recommends Windows NT 4.0, 2000 and XP Professional to take full advantage of all the features of WebPAM.
WebPAM User Manual Install WebPAM With that information ready, follow these steps to install PAM on each computer or server: 1. Boot the PC/server and launch Windows. If the computer is already running, exit all programs. 2. Insert WebPAM Install CD into your CD-ROM drive. 3. Double-click on the Install CD’s icon to open it. 4. Double-click on the Installer icon to launch it (right). Figure 4. WebPAM Introduction Screen. 5. When the Introduction screen appears, click the Next button.
Chapter 2: Installation Figure 5. WebPAM License Agreement. 6. When the License Agreement appears, click the “I accept the terms...” radio button, then click the Next button. If you do not accept the terms of the Agreement, the installation will stop. Figure 6. SSL Security Options Screen. 7. When the SSL Security Options screen appears, you may check either Internal or External Security, both or neither.
WebPAM User Manual Warning If you select internal security during one installation, you must select internal security for every installation on your other computers, otherwise WebPAM won’t work properly. Both Security features use the Secure Sockets Layer (SSL) method of encryption. SSL is a well-proven method of securing transactions used extensively for e-commerce and confidential transactions on the Internet. With security installed, you log in using Hypertext Transfer Protocol Secure (HTTPS).
Chapter 2: Installation Figure 7. Select WebPAM Components Screen. 8. When the Select WebPAM Components screen appears, choose whether to install the Utility Server or CIMOM Agent software. Utility Server – Install the Utility Server on a networked PC or a file server. If there is no network connection to the RAID PC, install the Utility Server on the RAID PC. Caution Install only ONE instance of the Utility Server on your network.
WebPAM User Manual Figure 8. Select Management Port Screen. 9. If you chose to install the CIMOM Agent, the Select Management Port screen will appear. Choose between SCSI or Serial. SCSI – Allows the RAID PC to manage multiple UltraTraks through the SCSI Bus. This function requires additional settings. See page 16 and Appendix C of this manual for more information. Serial – Allows the RAID PC to manage only one UltraTrak through the RS232 Serial Port and Null Modem cable.
Chapter 2: Installation Figure 9. Utility Server Information Screen. 10. When the Utility Server Information screen appears, enter the requested network addresses. Ask your IT Administrator for help in obtaining this information if necessary. Notes You must enter correct information for Email Server and Email Sender or the installation will not proceed. See Appendix B of this manual for help in finding the IP address of a networked computer. Email Server – Type in the name of your company’s email server.
WebPAM User Manual Figure 10. Choose Install Folder Screen. 11. When the Choose Install Folder screen appears, make your selection of a folder for the WebPAM applications you are installing. The default folder is C:\WebPAM. If you want a different folder, type its location and click the Choose... button. If you change your mind and want the default location, click on the Restore Default Folder button. Click the Next button when you are finished.
Chapter 2: Installation Figure 11. WebPAM Installation Configuration Screen. 12. When the WebPAM Installation Configuration screen appears, take a moment to review your choice of install folder and the available disk space on the target hard drive. • If you need to make changes, click the Previous button to return to the Install Folder screen. • If you are satisfied with the proposed installation, click the Install button. Figure 12. Install Complete Screen.
WebPAM User Manual When the Install Complete screen appears, the installation process is finished. Click the Finish button to go to the Promise Registration website. WebPAM to UltraTrak Connections In order to use WebPAM to manage your UltraTrak arrays, the RAID PC must be properly connected to the UltraTrak unit. There are two ways to do this: RS232 Serial Port – This method communicates through the Serial Ports on the RAID PC and UltraTrak (see below).
Chapter 2: Installation Uninstalling WebPAM If it ever becomes necessary to delete WebPAM, there is a Utility to do this for you. Go to the directory: C:\WebPAM\UninstallerData and double-click on the uninstall icon (below). Notes During uninstall process, the uninstall program will not remove some critical log files which contain important information, such as who created/deleted array on what date/what time on which Hosts, etc.
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Chapter 3: Initial Setup After you have completed your WebPAM installation, you must setup Browser to work with your RAID. Before you start, collect the IP addresses or Hostnames of the Utility Server PC and all of the RAID PCs. Appendix B of this manual describes how to locate a PC’s hostname and IP address. The first time you connect to the Utility Server, you must log in as the Administrator and type in the Administrator’s password.
WebPAM User Manual Note: If your network has a DHCP server, Promise recommends that you specify the Hostname, rather than the IP Address, when creating a new Host (RAID PC). See Appendix B of this manual for more information. Regular Connection WebPAM uses an HTTP connection .......................http:// • Use either the IP Address .......................... 192.168.1.108 or Hostname ....................................................webserver1 • Indicate the Port number ................................
Chapter 3: Initial Setup must have a record of the Hostname you plan to use. See your MIS Administrator for information about your network. Figure 16. WebPAM Login Screen. 3. When the opening screen appears, log in as administrator and type in the default password, which is password. The click on the Sign in button. Important Immediately after installation, change the Administrator’s password. Make the change User Management. Each user you create will have his/her own login and password.
WebPAM User Manual Note Make a Bookmark (Netscape Navigator) or set a Favorite (Internet Explorer) of the Login Screen so you can access it easily next time. After sign-in, the WebPAM opening screen appears. Figure 17. WebPAM Opening Screen. 4. Click on Administrator Tools to display the menu. At this point, you can see the WebPAM Interface.
Chapter 3: Initial Setup Figure 18. WebPAM Interface. The WebPAM user interface has two main views and one optional view: Tree View – Displays the elements of your RAID system. It works like Windows Explorer with hierarchical menus. You can expand individual items to see their components. Management Window – Displays functions of the component selected in Tree View and the choices you can make to manage it. Most of your work is done in this window. Event Frame – This view is optional.
WebPAM User Manual Create a New Host (RAID PC) From the Welcome screen (see Figure 16), click on the Host Management button. The Host Management List appears. Figure 19. Host Management List. 1. To add a new Host, click the Add Host button (above). The Host Information screen appears. Figure 20. Host Information Screen. 2. Type in the Hostname or IP Address of the Host (RAID PC) you want to add. 3.
Chapter 3: Initial Setup Create a New User To add a user: 1. Click the User Management button (below). The User List appears. Initially, there is only an account for the Administrator. Figure 22. User List. 2. Click the Create User button (above). The Create User panel appears. Figure 23. Create User Panel. 3. Type in the first User’s name, password and password confirmation. To receive email alerts, check the Assign Email Notification box. Check the permissions this User will have.
WebPAM User Manual Note If no Hosts (RAID PCs) have been created yet, no machines will appear in the permissions list. You can add and change the permissions later. 4. Click the Submit button when you are done. If you checked Email Notification above, when you click the Submit button, you will see the Event Selection screen. Figure 24. Event Selection Screen. Select the events you want reported via email. To save time and effort, check Critical Events or All Events.
Chapter 3: Initial Setup The Critical Events include: • • • • • • Disk Down Disk Media Error Disk SMART Failed Array Critical Array Synchronization Compare Error Array Offline • • • • • • Enclosure Power Down Enclosure Over Temperature Enclosure 5 Volt Range Enclosure Fan Stop Enclosure Unknown Error Enclosure 12 Volt Range 5. When you are finished selecting Events, click the Submit button. Figure 25. New User Added. The new User appears under User Management.
WebPAM User Manual Access a Host The WebPAM CIMOM Agent resides on the RAID PC and sends the monitoring data to the Utility Server and on to the Browser. In Tree View, a newly created Host looks like this: Figure 26. Host in Tree View. and its IP Address or Hostname. Each host is identified by an icon Below it, the Controller appears.
Chapter 3: Initial Setup Create an Array 1. Click on the Array View icon. In the Management window, all arrays belonging to this controller appear. Figure 27. Management Window With Array View Selected. 2. Click on Create Array tab in the Management window (above). The Create Array window appears. Figure 28. The Create Array Window. 3. Type in an Array name, select RAID level and Block Size, enable or disable Gigabyte Boundary, check or uncheck Initialize Array.
WebPAM User Manual 4. Select the Free Disks you want to use and click the >> button or double-click on the disks to move them to the Used Disks field. 5. Click the Submit button when you are finished. A popup message appears indicating the array was created (below). Figure 29. Array Created Message. The Event Window will show the new Array. If you checked the Initialize Array box, the Array Status will display the process of initialization. Figure 30. The New Array in the Management Window. 6.
Chapter 3: Initial Setup View Event Log The Event Window shows events as they happen. It is not the same as the Event Log, however. To see the Event Log: 1. In Tree View, click on the Host icon for the RAID PC whose log you want to see. 2. In the Management Window, click on the View LogFile button. Figure 31. The LogFile. In the LogFile window, you can view all events pertaining to an individual Host (RAID PC). Click the Previous Events and Next Events buttons to see the entire contents.
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Chapter 4: WebPAM User Interface This chapter describes WebPAM’s Graphic User Interface (GUI). You should understand that WebPAM is software running on top of the Promise RAID BIOS and other applications that came with your Promise RAID product. WebPAM adds a graphic user interface to make RAID management functions easier to understand and perform. Figure 33. The WebPAM Interface. You can resize these windows by passing your mouse over the dividers.
WebPAM User Manual Tree View The Monitor window is the user interface for WebPAM. It has three views: Tree View, Management Window and Event Window which were introduced in Chapter 3. The Tree View displays all of the elements of your RAID system. Use it to navigate to specific components. Figure 34. An example of a RAID system in Tree View. Management Window The Management Window is your interface point with WebPAM. All control functions are done there.
Chapter 4: User Interface Use these functions to add and delete Users and Hosts (RAID PCs) from your system, as well as changing User permissions and other parameters. User Management Figure 36. User Management Window. Click the User Management button under the Administration Tools. This window allows you to add and delete users. Double-click on the user name in the Edit User column to modify rights and email notification for that user. Host Management Figure 37. Host Management Window.
WebPAM User Manual This window provides access information on an individual Host (RAID PC) and editing user permissions. Utility Configuration Only the Administrator can see this button. Configuration is useful to view and setup/change various parameters for the utility like refreshing time, logfile path, email sender/server/subject etc. Figure 39. Utility Configuration Window. Note If you change configuration parameters, you must restart the web server to make them effective.
Chapter 4: User Interface Host Figure 40. Host Window. Click on a Host icon in Tree View to see the Host window. From this window, you can see Host and Promise software information, and view the Logfile. Chapter 5 discusses how to perform these functions. The Administrator sees the User Management button and can jump to that function. Chapter 5 discusses how to perform these functions. Controller Click on the Controller or icon to see the Controller window.
WebPAM User Manual Disk View Figure 42. Disk View Window. A Disk Group refers to all the hard drives under a single Controller. These drives may or may not be part of a RAID. To see this window, click on the Disk View icon. Disk View Disks Figure 43. Disk View Disk Window. below the Disk View icon.
Chapter 4: User Interface Array Figure 45. Array Window. icon to display the details of a single array. From Click on the Array this point, you can convert, rebuild, synchronize and expand the array. You can also see array name, RAID mode, block size in kilobytes, array size in megabytes and its current status. Array Disks Figure 46. Array Disk Window. The Array Disk window displays the same information as the Disk View Disk window.
WebPAM User Manual Enclosure Figure 48. Enclosure Window. Click on an Enclosure window displays the: icon to see the Enclosure Window. This Enclosure Type – Lists the model of enclosure, in this case an UltraTrak RM4000. Fan Speeds – Each drive in the enclosure has a cooling fan. Above 2,000 rpm is normal speed. When a fan turns slowly or stops, it requires attention. Temperature – 30°C (86°F) is normal. Each sensor displays a reading.
Chapter 4: User Interface is especially helpful in verifying that your commands are accepted and watching the progress of each operation. Figure 49. Event Window. Banner The Banner appears at the top of every WebPAM screen. Click on the item of your choice to invoke its action. Figure 50. WebPAM Banner. Language – Displays a dropdown menu of language choices. Currently, only English is available though others are planned.
WebPAM User Manual You can also access the Online Help by clicking on the Help button in the Management Window Figure 51. Help Buttons: Banner (left) and Management Window (right). Figure 52. Help topic hyperlinks. The Banner Help button brings up the Help Contents page with hyperlinks to individual topics (above). From here you can click on the topic you want to read.
Chapter 4: User Interface The Management View Help button brings up the specific (context sensitive) Help topic (below). Figure 53. Sample Help topic.
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Chapter 5: RAID Monitoring and Management with WebPAM This chapter describes using WebPAM to monitor and manage your RAID system. The chapter is divided into sections for major WebPAM components: • • • • • • • Log-in/Log-out Host (RAID PC) Management User Management Array Management Controller Management Disk Management Enclosure Management Log-in/Log-out Log-in Over Network or Internet 1. Launch your Browser. 2.
WebPAM User Manual Note that when you are using an IP Address from an external connection, such as over the Internet, you will use a different IP Address than you would over the company’s LAN. See your MIS Administrator for help in establishing external access. This requirement applies to regular and secure connections. Secure Connection If you installed a security option (see Chapter 2), use a secure login. WebPAM uses a secure HTTP connection ........... https:// • Use either the IP Address ............
Chapter 5: RAID Monitoring & Maintenance Figure 54. WebPAM Login Screen. 3. When the opening screen appears, type in your Login ID and password. The click on the Sign in button. The default Login ID and password are administrator and password, respectively. Note Make a Bookmark (Netscape Navigator) or set a Favorite (Internet Explorer) of the Login Screen so you can access it easily next time.
WebPAM User Manual After sign-in, the WebPAM opening screen appears. Figure 55. WebPAM Opening Screen. Click on Administrator Tools to display the menu. At this point, you can see the WebPAM Interface.
Chapter 5: RAID Monitoring & Maintenance Figure 56. WebPAM Interface. The WebPAM user interface has two main views and one optional view: Tree View – Displays the elements of your RAID system. It works like Windows Explorer with hierarchical menus. You can expand individual items to see their components. Management Window – Displays functions of the component selected in Tree View and the choices you can make to manage it. Most of your work is done in this window. Event Frame – This view is optional.
WebPAM User Manual Host Management Create a New Host 1. Click on the Host Management icon under Administrator Tools. The Host Management List appears. Figure 57. Host Management List. 2. Click the Add Host button (above). The Host Information screen appears. Figure 58. Host Information Screen. 3. Type in the Hostname or IP Address of the Host (RAID PC) you want to add. 4. Check the appropriate box to indicate which Promise product the Host controls, an UltraTrak or a SuperTrak. 5.
Chapter 5: RAID Monitoring & Maintenance Host User Rights Figure 60. List of Hosts. icon under Administration Tools. This 1. Click the Host Management window displays a list of Hosts (RAID PCs) configured to this WebPAM installation. 2. Click on the hypertext link to see an individual Host. Figure 61. User Rights for an individual Host. This window provides access information on an individual Host (RAID PC) and editing user permissions. 3. Check the permissions this User will have.
WebPAM User Manual Access a Host (RAID PC) The WebPAM CIMOM Agent resides on the RAID PC and sends the monitoring data to the Utility Server and on to the Browser. In Tree View, a Host looks like this: Figure 62. Host in Tree View. and its IP Address or Hostname. Each host is identified by an icon Below it, the Controller appears.
Chapter 5: RAID Monitoring & Maintenance Host (RAID PC) Management Window To access the Management Window for an individual Host (RAID PC), icon in Tree View. The result is a different window click on the Host than clicking Host Management described above. Figure 63. Individual Host Management. From this point, you can: • View the Logfile • Access Host User Rights (Administrator only) View Event Log The Event Window shows events as they happen. It is not the same as the Event Log, however.
WebPAM User Manual Delete a Host (RAID PC) To delete a Host: icon in Tree View. 1. Click the Administrator Tools Click the Host Management icon. The Host List appears. Figure 65. Delete a Host. 2. Under Select for Deletion, click the checkbox of the Host you wish to delete. 3. Click the Delete Selection button. Notes WebPAM will remove the link from the RAID PC to your local browser. This action does not change or delete the RAID itself.
Chapter 5: RAID Monitoring & Maintenance User Management Create a New User To add a user: icon. The User List appears. Initially, 1. Click the User Management there is only an account for the Administrator. Figure 66. User List. 2. Click the Create User button (above). The Create User panel appears. Figure 67. Create User Panel. 3. Type in the first User’s name, password and password confirmation. To receive email alerts, check the Assign Email Notification box.
WebPAM User Manual Notes If no Hosts (RAID PCs) have been created yet, no Host will appear in the permissions list. You can add and change the permissions later. 4. Click the Submit button when you are done. If you checked Email Notification above, when you click the Submit button, you will see the Event Selection screen. Figure 68. Event Selection Screen.
Chapter 5: RAID Monitoring & Maintenance Select the events you want reported via email. To save time and effort, check Critical Events or All Events. The Critical Events include: • • • • • • Disk Down Disk Media Error Disk SMART Failed Array Critical Array Synchronization Compare Error Array Offline • • • • • • Enclosure Power Down Enclosure Over Temperature Enclosure 5 Volt Range Enclosure Fan Stop Enclosure Unknown Error Enclosure 12 Volt Range 5.
WebPAM User Manual Delete a User To delete a User: 1. Click the Administrator Tools icon in Tree View. 2. Click the User Management icon. The User List appears. Figure 70. Delete a User. 3. Click the checkbox of the User you wish to delete. 4. Click the Delete Selection button. Notes WebPAM will maintain at least one user with full access, typically the Administrator. This action prevents you from being locked out of the application and having to reload it.
Chapter 5: RAID Monitoring & Maintenance Figure 72. The Modify/View User Screen. 4. In the Modify/View User screen, specify the following User Rights: Creation – Create, Expand and Convert arrays Deletion – Delete arrays Maintenance – Rebuild and synchronize arrays Notification – Receive and display array events through email You can also set these permissions from the Host User Rights screen. 5. When you are done, click the Submit button. The User list appears again. Your changes take effect immediately.
WebPAM User Manual Setup Email Alert Notification WebPAM can alert you to the problems and processes happening to your RAID through email messages. You setup Email Notification for each Machine (RAID PC) and each User individually. A Machine must be created before you can setup Email Notification for it. Note: You can also setup email alert notification during creation of user alsowhen you create a new User. These steps describe how to setup the email function. 1.
Chapter 5: RAID Monitoring & Maintenance Array Management Create an Array You must have Creation Rights to perform this function. 1. Select a Controller array. or icon on which you want to create an 2. Click on the Array View icon. In the Management window, all arrays belonging to this controller appear. Figure 73. Management Window With Array View Selected. 3. Click on Create Array tab in the Management window (above). The Create Array window appears. Figure 74. The Create Array Window. 4.
WebPAM User Manual Notes The available RAID selection depends on which Promise product you have and the number of disk drives available. • The default Block size is 64KB. • Promise recommends checking Initialize Array. • 5. Select the Free Disks you want to use and click the >> button or double-click on the disks to move them to the Used Disks field. 6. Click the Submit button when you are finished. A popup message appears indicating the array was created (below). Figure 75. Array created message.
Chapter 5: RAID Monitoring & Maintenance Array Critical Status When WebPAM detects a fault in the Array, Enclosure or any other icon over the affected component, it signals with a warning components in Tree View (below). The Promise RAID Controller will also detect the fault and sound an audible alarm. Figure 77. Array Critical Status. When this condition appears, click on each component to discover the faulty one below it. The last component is the source of the fault.
WebPAM User Manual Figure 79. Array Rebuilding. During rebuilding (above), you can still read and write data to the array. However, fault tolerance is lost until the array is restored to Functional status. Rebuild Array When a disk fails and you have replaced it with a new one, you must rebuild the Array to restore data redundancy. Normally, the rebuild process begins automatically. You can also perform a rebuild manually. You must have Maintenance Rights to perform this function.
Chapter 5: RAID Monitoring & Maintenance 2. In the Management Window, click on Rebuild Array. The Rebuild Array screen appears. Figure 81. Rebuild Array Screen. 3. In the Disk Name dropdown menu, select the replacement disk drive by its Channel number. 4. Click the Submit button when you are done. The Array Management function screen returns and the Array begins rebuilding. Watch the Event Frame for progress. Expand Array If you have an UltraTrak, you have the option of expanding your array.
WebPAM User Manual Figure 83. Expand Array Screen. 3. Select the available disk drives you want to add from the Free Disks list. Click the >> button to move them to the Used Disks list. 4. Click the Submit button when you are done. The Array Management function screen returns and the Array begins the expanding process. Watch the Event Window for progress. Convert Array If you have an UltraTrak RAID, you have the option of converting your Array.
Chapter 5: RAID Monitoring & Maintenance Figure 84. Array Management Screen. 2. In the Management Window, click on Convert Array. The Convert Array screen appears. Figure 85. Convert Array Screen. 3. Select the new RAID Level from the dropdown menu. 4. Select any available disk drives you want to add from the Free Disks list. Click the >> button or double-click on the disks to move them to the Used Disks list. 5. Click the Submit button when you are done.
WebPAM User Manual Synchronize Array Promise uses the term synchronization to mean an automated process of checking and correcting data and parity. It applies to RAIDs 1, 3, 5, 0+1, 30 and 50. The array is still accessible during synchronization but it will respond more slowly. You must have Maintenance Rights to perform this function. 1. In Tree View, click the icon of the Array you want to synchronize. Figure 86. Array Management Screen. 2. In the Management Window, click Synchronize Array.
Chapter 5: RAID Monitoring & Maintenance Figure 87. Synchronization Schedule Screen. 2.
WebPAM User Manual Array Functions This feature pertains to SuperTrak only. 1. In Tree View, click on the icon of the Array you want to rebuild. Figure 88. Array Management Screen. 2. In the Management screen, click on Array Functions. The Array Function screen appears. Figure 89. SuperTrak Array Function Screen. There are two functions on the Array Function screen: Enable Write Back — Check the box to enable the Write Back Cache.
Chapter 5: RAID Monitoring & Maintenance If you changed the Enable Write Back function, you must restart the Host (RAID PC). Delete an Array You must have Deletion Rights to perform this action. 1. Click on the Array View icon. In the Management window, all arrays belonging to this controller appear. Figure 91. Array View Management Window. 2. Click on Delete Array in the Management window (above). The Delete Array window appears (below). Figure 92. Delete Array Window. 3.
WebPAM User Manual Controller Management The Controller represents the Promise RAID product. In Tree View, the Controller is identified by product name, such as UltraTrak in the example below. Figure 94. Controllers in Tree View. Each Controller is composed of: Disk View– Shows all hard drives, assigned or not Array View– Shows all arrays for this Controller Enclosure View– Monitors status of external RAID enclosures The Array View is covered in the previous Array Management section. Figure 95.
Chapter 5: RAID Monitoring & Maintenance Additional Controller settings are possible. Click the Controller Functions button, see above. The Controller Configuration screen appears. Figure 96. UltraTrak Controller Configuration Screen. Figure 97. SuperTrak Controller Screen. Controller configuration includes these functions: Buzzer Status — Check the box to enable the buzzer. The buzzer provides an audible alarm when the Array requires attention or a management operation is in progress.
WebPAM User Manual same time as the hard disk. If the same data is needed right away, it is sent from the cache, speeding up read performance. Enable Write Back — Check the box to enable the Write Back Cache. The Write Back Cache stores data momentarily before it is written to the hard disk. The action speeds up disk write performance but adds a risk of lost data in the event of a power failure. Applies to UltraTrak only.
Chapter 5: RAID Monitoring & Maintenance Set / Release Lock Accessing an array to read or write data during maintenance or conversion causes the operation to take longer and yields decreased read/write performance until the operation is finished. For array installations with multiple users on a network, you may experience unintended interference by other users.
WebPAM User Manual Disk View The Disk View represents all the disk drives available to the Controller, whether or not they are assigned to an Array. By way of contrast, an Array View shows only the disk drives assigned to it. Click on the Disk View icon to see the Disk View Management Window (below). Figure 100. The Disk View Management Window. The Disk View Management Window provides a quick view of disk drive model, size and status. Any problems are reported as shown below: Figure 101.
Chapter 5: RAID Monitoring & Maintenance Click on a Disk icon to see information about an individual Disk Drive.
WebPAM User Manual Figure 104. Enclosure Window. The Enclosure Window displays: Enclosure Type – Lists the model of enclosure, in this case an UltraTrak RM4000. Fan Speeds – Each drive in the enclosure has a cooling fan. Above 2,000 rpm is normal speed. When a fan turns slowly or stops, it requires attention. OK Problem Temperature – 30°C (86°F) is normal. Each sensor displays a reading.
Appendix A: RAID RAID (Redundant Array of Independent Disks) allows multiple hard drives to be combined together to form one large logical drive or “array.” As far as the operating system is concerned, the array represents a single storage device, and treats it as such. The RAID software and/or controller handle all of the individual drives on its own.
WebPAM User Manual RAID 1 - Mirroring When a disk array is mirrored, identical data is written to a pair of drives, while reads are performed in parallel. The reads are performed using elevator seek and load balancing techniques where the workload is distributed in the most efficient manner. Whichever drive is not busy and is positioned closer to the data will be accessed first. With RAID 1, if one drive fails or has errors, the other mirrored drive continues to function. This is called Fault Tolerance.
Appendix A: RAID Data Stripe 2 2 1 4 3 6 5 8 1 4 3 6 5 8 7 7 Data Mirror Disk Drives Figure 107. RAID 0+1 Striping and Mirroring of Two Drive Pairs The data capacity is similar to a standard mirroring array, with half of the total storage capacity dedicated for redundancy. An added plus for using RAID 0+1 is that, in many situations, such an array offers double fault tolerance. Double fault tolerance may allow your data array to continue to operate depending on which two drives fail.
WebPAM User Manual Data Stripes 1a 1b 1c 1 parity 2a 2b 2c 2 parity 3a 3b 3c 3 parity 4a 4b 4c 4 parity Data Drives Parity Drive Figure 108. RAID 3 Stripes Data and adds a dedicated Parity Drive The capacity of a RAID 3 array is the smallest drive size multiplied by the number of drives less one. Hence, a RAID 3 array with (4) 100 GB hard drives will have a capacity of 300GB. An array with (2) 120GB hard drives and (1) 100GB hard drive will have a capacity of 200GB.
Appendix A: RAID The capacity of a RAID 5 array is the smallest drive size multiplied by the number of drives, less one. Hence, a RAID 5 array with four 100 GB hard drives will have a capacity of 300 GB. An array with two 120 GB hard drives and one 100 GB hard drive will have a capacity of 200 GB. RAID 30 - Striping of Dedicated Parity Arrays RAID 30 combines both RAID 3 and RAID 0 features. Data is striped across disks as in RAID 0, and it uses dedicated parity as in RAID 3.
WebPAM User Manual Distributed Parity Data Stripe 1a 3a a parity 1b b parity 5b c parity 3c 5c 2a 4a a parity 2b b parity 6b c parity 4c 6c Disk Drives Figure 111. RAID 50 Striping of Distributed Parity Arrays JBOD - Single Drive An alternative to RAID, Just a Bunch of Disks (JBOD) capacity is equal to the sum of all drives in the group, even if the drives are of different sizes. JBOD appears in the User Interface as one or more individual drives.
Appendix A: RAID Supported RAID Levels Type Min. No. of drives Name JBOD Single Drive 1 RAID 0 Striping 2 RAID 1 Mirroring 2 RAID 3 Block Striping with Parity Drive 3 RAID 5 Block and Parity Striping 3 RAID 0+1 Striping / Mirroring 4 RAID 30 Striping of Dedicated Parity Arrays 6 RAID 50 Striping of Distributed Parity Arrays 6 Table 2. Promise Product SuperTrak: SX6-100 SX6000 UltraTrak: All models UltraTrak: SX/RM8000 RM15000 RAID Levels for Promise Products.
WebPAM User Manual RAID Level Conversion Existing arrays can be converted to a different RAID level of equal or greater capacity to add flexibility, redundancy or for tuning an array for a different storage application. From To RAID 5 RAID 50 RAID 30 RAID 3 RAID 0+1 RAID 0 RAID 5 RAID 3 Comments Some reduction in performance, lower disk overhead. Some reduction in performance, lower disk overhead. Full redundancy instead of parity. 8 drives required.
Appendix A: RAID RAID Level Conversion, continued From RAID 1 RAID 0 To Comments RAID 50 RAID 30 Increases performance. 6, 8, 10, 12 or 14 drives required. RAID 5 Adds performance, capacity and redundancy. 3 or more drives required. RAID 3 RAID 0+1 Adds performance and capacity. 4, 6, 8, 10, 12 or 14 drives required. RAID 0 Increases capacity and performance but loses data redundancy. RAID 50 RAID 30 Increases performance. 6, 8, 10, 12 or 14 drives required.
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Appendix B: Connection and Compatibility IP Address In order for WebPAM to be configured, you must know the IP (network) address or Hostname of every Host (RAID PC). The Utility Server uses IP addresses to communicate with the Agents on the Hosts (RAID PCs) and the Browsers on the network PCs. To find the IP address, go to Start > Programs > Accessories > Command Prompt. Type in: ipconfig /all and press Enter. Figure 113. Use the Command Prompt to find your PC’s IP address.
WebPAM User Manual DHCP Issues DHCP stands for Dynamic Host Configuration Protocol and refers to software that allows a file server to assign IP addresses to computers on the network. DHCP is very helpful in reducing the number of IP address a company or organization requires. The DHCP server assigns an IP address to a computer as it logs onto the network. The IP address will remain the same until the computer logs off or disconnects for any reason, such as a power failure.
Appendix B: Connection & Compatibility Java Requirements WebPAM installs Java Runtime Environment (JRE) 1.4 on your system. If you currently have JRE or Java Development Kit (JDK) versions 1.2.2, 1.3.0 or 1.4, WebPAM will use the existing JRE rather than installing a second one. Where possible, install WebPAM first, then install your JDK. Always install JRE first and then install WebPAM.
WebPAM User Manual Selected Definitions While Promise WebPAM uses proven technologies, a few key terms may be new to some users. Following are brief definitions of key terms used in this manual. CIMOM – CIMOM (Pronounced “SEE mom”) stands for Common Information Model Object Management. Common Information Model (CIM) is a protocol used to manage Internet-based storage. Object Manager (OM) is server software that implements the CIM protocol.
Appendix C: Troubleshooting Why can’t I see my Machine/Host/RAID PC in WebPAM? Figure 114. Hosts in WebPAM Tree View. First-time use of WebPAM Verify that the PC with the Utility Server is running and connected to the network. Verify that the RAID PC is running and connected to the network. Verify that the monitoring PC (where the browser is running) is connected to the network. Verify the IP Address used to create the Host.
WebPAM User Manual Verify the UltraTrak firmware and SCSI Base Management setting. Figure 116. Boot screen for SCSI Host Adapter. During boot-up of the Host/RAID PC, observe the BIOS screen for the SCSI Host Adapter's BIOS. Three SCSI IDs should appear: ID #1 is the actual Array on the UltraTrak • ID #2 is the RAID Console driver, the interface that WebPAM requires • ID #7 is the SCSI Host Adapter The ID numbers will vary depending on your UltraTrak SCSI settings.
Appendix C: Troubleshooting Verify the SCSI Base Management setting: 1. On the UltraTrak LCD display, press SEL to activate the screen. 2. Press the down arrow to Configuration and press SEL. 3. Press the down arrow twice to Configure SCSI and press SEL. 4. Press the down arrow twice to SCSI Base Mgt. SCSI ID SCSI Base Mgt. Enabled Figure 117. UltraTrak SCSI Configuration Menu. 5. SCSI Base Mgt should be Enabled. If not, press SEL to toggle between Disabled and Enabled. 6.
WebPAM User Manual Two items should be present and working properly. • SCSI Host Adapter • Promise SCSI RAID Controller 4. If the SCSI Host Adapter does not appear, or appears but is not working, remove and reinstall the SCSI Host Adapter and its driver. If the Promise SCSI RAID Controller does not appear, or appears but is not working, reinstall the driver from the UltraTrak CD. Verify that the CIMOM software was installed on the RAID PC.
Appendix C: Troubleshooting Verify that the Utility Server was installed on a network PC or Server. On the same PC or Server, go to Windows Services and verify that the Tomcat service is present and running. Figure 120. Tomcat Service. If the Tomcat service is not present, reinstall the WebPAM Utility Server. If the Tomcat service is present but not running, start it. If the Tomcat service is present and running but connection still does not work, there may be a port conflict. 1.
WebPAM User Manual WebPAM worked before but now it doesn’t Verify that the PC with the Utility Server is running and connected to the network. Verify that the RAID PC is running and connected to the network. Verify that the monitoring PC (where the browser is running) is connected to the network. If the UltraTrak reboots, it will temporally disconnect. It will automatically reconnect a few moments after booting is completed. Verify the IP Address used to create the Host.
