nStor Corporation, Inc. © 1996-1998 nStor Corporation, Inc., All Rights Reserved. 3rd Edition nStor Corporation, Inc. shall not be liable for any damages or for the loss of any information resulting from the performance or use of the information contained herein. Your rights to the software are governed by the license agreement included with any accompanying software. nStor Corporation reserves the right to periodically revise this manual without notice.
Regulatory Information FCC Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Power Cord Selection ■ This subsystem is intended for indoor use only. ■ This subsystem is intended to be plugged into a 6A branch circuit in Europe.
Contents 1 Preface v Welcome Features Where to Find Answers Registering Your Product v vi vii vii Getting Started 1 CR8e Subsystem at a Glance Components Hot Swap Disk Drives Hot Swap Cooling Fans Hot Swap Power Supplies Power Switch Door Lock I/O Interface Card Power Cord Connector and Fuse Configuration Modules Controlling and Monitoring Operator Control Panel LEDs Alarm Speaker Fault LEDs SAF-TE Card 2 4 4 4 5 5 5 6 6 7 8 8 9 11 11 11 i
2 3 4 5 ii Contents Installation 13 Setup System Requirements Guidelines Rack-Mount Subsystem Assembly Component Installation Cabling Configuration General Ultra Wide SCSI Mode Fast Wide SCSI Mode Other Configurations 13 14 14 15 17 20 20 22 26 36 Using the CR8e 37 Notifications and Error Conditions Power-On Self Test Firmware Error Conditions LED Descriptions Operator Control Panel Startup Screens Power Supply Error Conditions Subsystem Status Icon Main Menu Options Menu Heat Threshold SAFTE CH
Replacing a Fuse Replacing the CR8e Cabinet 62 63 A Glossary 65 B Technical Information 69 Specifications Connectors and Jumpers Connectors Jumpers 69 70 70 72 Index 77 Contents iii
iv Contents
Preface Welcome Congratulations on the purchase of your new CR8e from nStor Corporation. The nStor CR8e provides a superior fault-tolerant network storage solution in a subsystem-based SAF-TE compliant RAID enclosure. The CR8e is an eight drive enclosure designed to support Ultra Wide SCSI (Fast-20) and Fast Wide SCSI protocols. The Ultra Wide SCSI (Fast-20) support maintains SCSI bus data transfer rates up to 40 Mbytes/sec.
Preface Features The following are major features of the nStor CR8e disk array subsystem: RAID Level Support RAID levels 0, 1, 3, 5, 10 (1 + 0), 30, and 50. Configuration Deskside tower-based subsystem or rack-mount subsystem. Drive Support Up to eight 3.5-inch, half-height form factor, hot swappable high performance 7,200 and 10,000 RPM Ultra SCSI disk drives using SCA-II technology (4.2, 9.1, or 18.2 gigabyte capacities). Interface Ultra SCSI (Fast 20)/SCSI.
Preface Where to Find Answers When you have questions about your nStor products there are several places you can look to find answers. Refer to the following: In this guide This user’s guide provides detailed information for installing and using the CR8e disk array subsystem. The manual assumes that the reader is already familiar with the operating system environments where the CR8e will be installed.
Preface viii Registering Your Product
1 Getting Started In this chapter we will provide a description of the components, and the control and onboard monitoring systems found in the CR8e enclosure. On the next two pages are illustrations that depicts the location of featured components of the CR8e. Familiarize yourself with the subsystem’s components and their descriptions prior to beginning the installation and using the CR8e.
Getting Started CR8e Subsystem at a Glance Operator Control Panel (OCP) Speaker Door Lock Status Indicator LEDs Channel Mode LED Power Supply LED Power-On LED Fan Status LED Status Indicator LEDs Note: LEDs normally visible only when illuminated, shown here for identification.
Getting Started Bay for optional Ultra S2S RAID Controller SAF-TE Card Fault LEDs Power On/Off Switch Hard Disk Drive Drive Rails Note: Cover shown cut-away to illustrate recessed power switch. I/O Interface Card Cooling Fan #2 * * Power Supply #3 with PSU Cover Plate Cooling Fan #1 * Power Supply #2 * I/O Interface Card “DC Good” LED Power Supply #1 * * Power supplies and cooling fans must be replaced by qualified service personnel only.
Getting Started Components This section provides a descriptive overview of each of the major components that comprise the CR8e subsystem. Hot Swap Disk Drives The CR8e uses either 4.2 gigabyte, 9.1 gigabyte, or 18.2 gigabyte high performance, 3.5-inch form factor hot swap disk drives. The drives are designed to operate on the Small Computer System Interface (SCSI) and are Ultra SCSI as well as SCSI-2 command compatible.
Getting Started If an error occurs, access the Operator Control Panel to determine the cause and locate the failed component. For more information, see Operator Control Panel on page 40. The fans are identified on the rear door panel using a placard for “FAN 1” and “FAN 2.” For more information on changing a cooling fan, see Replacing the Cooling Fans on page 60. Hot Swap Power Supplies CAUTION: Power supplies must be replaced by qualified service personnel only.
Getting Started I/O Interface Card The I/O Interface card provides the connection from the subsystem’s bus to the host adapter. Located on the I/O Interface card are two 68-pin very high density (VHD) SCSI connectors. The connectors are labeled Channel 0 and Channel 1. The I/O Interface card incorporates built-in automatic SCSI termination. When a data cable is plugged in, the system automatically senses the connection and provides the required SCSI termination.
Getting Started Configuration Modules CAUTION: Configuration modules must be installed or replaced by qualified service personnel only. The CR8e’s SCSI bus design provides either of two bus configurations which is determined by the configuration module installed. The Dual-Bus module provides a split bus configuration where the enclosure’s top four drive slots and the lower four drive slots are on two independent SCSI buses.
Getting Started Controlling and Monitoring An integral part of the CR8e is its control and monitor capabilities. The subsystem enclosure contains a series of redundant alert notifications in the form of LEDs, alarms, and an LCD Operator Control Panel. Each of these components are discuss in the following topics. Operator Control Panel The Operator Control Panel (OCP) provides control and monitoring capabilities through an LCD panel located on the front door of the CR8e.
Getting Started An animated icon will appear on the display after 30 seconds of no OCP input activity and provides an “at-a-glance” look at system status. When a “happy” animated face appears, all systems are indicating a nominal state. When the animated face changes to a “sad” face, the system indicates that a problem has been detected and requires attention. The “power system” status will display the total power available per drive slot in redundant and non-redundant mode.
Getting Started Power Supply Status The Power Supply Status LED indicates the condition of the power supplies. The LED will illuminate steady green when all the power supplies are functioning normally and will change to amber if one of the power supplies should fail. The LED will also switch to amber if the power system is in a non-redundant state. A failed component can be identified via the Operator Control Panel and the lack of an illuminated “DC Good” LED located on each power supply unit.
Getting Started Alarm Speaker An audible alarm will sound when any component’s condition changes to an abnormal state. The Status Indicator LEDs conditions (color and/or state) will provide a general area of failure, and the failed component can then be identified using the Operator Control Panel. To silence the alarm, access the control panel and select “Turn Off Alarm.” For more information see Main Menu on page 42.
Getting Started Disk drives, power supplies, cooling fans and temperature are continually monitored and these conditions are then reported over the SCSI bus to the host system. When used in conjunction with the AdminiStor Storage Management software, the CR8e can alert the user or LAN administrator of conditions requiring their attention. These alert notifications can be made via network broadcast or electronic pages, in addition to the LEDs and Operator Control Panel alerts found on the CR8e subsystem.
2 Installation Setup The installation of your nStor CR8e disk array subsystem is essentially a three-step process: the subsystem is setup and its components installed, the cabling is completed based on the supported configurations, and the array is then configured. This chapter is divided into two sections: Setup and Cabling Configuration.
Installation System Requirements The nStor CR8e disk subsystem is based on an open architecture design and can be connected to any host-based SCSI system. Refer to your adapter/controller and host system user’s manuals for information about the system requirements for the host system where the controller will be installed.
Installation Rack-Mount Subsystem Assembly You can install the CR8e into any standard IAE 19" rack cabinet. CAUTION: NOTE: 1 Ensure that the location of the CR8e does not create an unstable condition when installed in the rack cabinet enclosure. Mount the subsystem into the rack enclosure before installing the disk drives. This will reduce the weight required to support during installation. Select an appropriate location in your rack cabinet for the CR8e.
Installation 2 To aide in support bracket installation, remove the rack cabinet side panels. 3 Locate the two support brackets. Mount the two brackets to the rack cabinet verticals using the four screws, four washers, and four caged nuts provided for each bracket. Refer to detail “A” in the illustration on the previous page.
Installation Component Installation CAUTION: Disk drives and printed circuit board components are sensitive to electrostatic discharge. To prevent operating failure or damage, observe the following: Establish a ground for yourself by using the wrist grounding strap, or by touching the metal chassis prior to handling or installing the drives or printed circuit board components. 1 Down your server or power off your computer system in preparation for installing the host adapter (if applicable).
Installation Populate drive bays from the lower (right) slot first. Drive Label Component side Upper (left) bay, four drive slots Lower (right) bay, four drive slots 6 Fully seat the drive by applying pressure with your thumb to the front of the drive. 7 Press the Drive Latching Clips until they “snap” into place. The drive is now locked into position. 8 Install the remaining drives repeating steps 3 through 7, until all the drives have been installed, as desired.
Installation Installing the Third Power Supply If you will be installing five (5) or more disk drives you will be required to install the third power supply. CAUTION: Power supply installation is to be performed by qualified service personnel only. There is no need to power off the CR8e or the computer system. The power supplies are hot swappable. 1 Loosen the two screws on the Power Supply #3 cover plate using a flat-blade screwdriver and remove the cover plate.
Installation Cabling Configuration The Ultra Wide SCSI mode provides enhanced performances with data transfers up to 40 MBs per second (20 MHz), while the Fast Wide SCSI mode will provide transfers up to 20 MBs per second (10 MHz). The cabling configuration section is divided into two subsections, Ultra Wide SCSI and Fast Wide SCSI. These two sections provide the recommended cable configurations when operating the CR8e in a specific mode.
Installation Because of the enhancements in the CR8e, its possible to extend beyond the limits set forth in the specification. However, a symptom from exceeding this cable limit is a SCSI bus lockup or “freeze.” If you experience a similar problem and are aware of a cabling limit issue, reducing the length of cabling and returning the total length to within the specified limit should resolve any problems.
Installation Ultra Wide SCSI Mode Several possible configurations exist for the CR8e in Ultra Wide SCSI mode. However this manual will discuss the two possible configurations using the I/O Interface card in Ultra Wide SCSI mode: dual-bus module in a single enclosure and single-bus module in a single enclosure. Refer to the nStor Feature Card User’s Guide for additional configurations when using the Ultra Extender or Differential Converter card.
Installation 2 Connect the other end of the data cable to the Channel #0 SCSI connector on the right side or upper I/O Interface card. 3 If required, connect one end of the second one meter data cable to the Channel #2 connector on the AM RAID Controller. 4 Connect the other end of the second data cable to the Channel #1 SCSI connector on the right side or upper I/O Interface card. Ch 1 Ch 2 Ch 0 NOTE: TOP Ch 1 I/O Interface Card Rear View CR8e with Dual-Bus Module installed.
Installation Single-Bus Enclosure With the Single-Bus module is installed, all of the disk drives in the CR8e enclosure are on the same SCSI bus. With this configuration you will have a total storage capacity of up to 145 GB (using 18 GB disk drives) per subsystem enclosure and have access to the drives independently or as a single large array. The SCSI IDs of the drives are set by SAF-TE card defaults to IDs 0 through 9, and are assigned sequentially beginning with the lowest or far right drive.
Installation 3 Turn on the power to the CR8e. After the power-on self-test has completed, Status and Channel Mode LEDs will be solid green. 4 Access the Options menu on the Operator Control Panel and choose the SAFTE CHAIN ID selection. Choose the “None” selection, refer to “SAFTE CHAIN ID” on page 50. 5 After setting the cabinet identifications you must power cycle the subsystem. Observe normal power cycling precautions by waiting a minimum of five (5) seconds before adding power again.
Installation Fast Wide SCSI Mode Several possible configurations exist for the CR8e in the Fast Wide SCSI mode: dual-bus with one or two enclosures, single-bus with one or two enclosures, and one dual-bus enclosure with two single-bus enclosures connected.
Installation 2 Connect the other end of the first data cable to the Channel #0 SCSI connector on the right side or upper I/O Interface card. 3 If required, connect one end of the second one meter data cable to the Channel #2 connector on the AM RAID Controller. 4 Connect the other end of the second data cable to the Channel #1 SCSI connector on the right side or upper I/O Interface card. Ch 1 Ch 2 Ch 0 NOTE: TOP Ch 1 I/O Interface Card Rear View CR8e with Dual-Bus Module installed.
Installation Two Dual-Bus Enclosures With this configuration you will have a total storage capacity of up to 290 GB (using 18 GB disk drives) which provides 145 GB per channel per subsystem enclosure. This configuration is similar to the “Single Dual-Bus Enclosure” except that the capacity is expanded with a second cabinet providing a total of eight drives per SCSI channel.
Installation 6 Connect the other end of the jumper cable to the Channel #0 SCSI connector on the left side or lower I/O Interface card in the second cabinet. 7 Connect one end of a second jumper cable to the Channel #1 SCSI connector on the left side or lower I/O Interface card in the first cabinet. 8 Connect the other end of the second jumper cable to the Channel 1 SCSI connector on the left side or lower I/O Interface card in the second cabinet.
Installation Single-Bus Enclosure With the Single-Bus module is installed, all of the disk drives in the CR8e enclosure are on the same SCSI bus. With this configuration you will have a total storage capacity of up to 145 GB (using 18 GB disk drives) per subsystem enclosure and have access to the drives independently or as a single large array. The SCSI IDs of the drives are set by SAF-TE card defaults to IDs 0 through 9, and are assigned sequentially beginning with the lowest or far right drive.
Installation 3 Turn on the power to the CR8e. After the power-on self-test has completed, Status and Channel Mode LEDs will be solid green. 4 Access the Options menu on the Operator Control Panel and choose the SAFTE CHAIN ID selection. Choose the “None” selection, refer to “SAFTE CHAIN ID” on page 50. 5 After setting the cabinet identifications you must power cycle the subsystem. Observe normal power cycling precautions by waiting a minimum of five (5) seconds before adding power again.
Installation Two Single-Bus Enclosures This configuration is similar to the “Single-Bus Enclosure” except that the capacity is expanded with a second cabinet providing a total of fourteen drives per SCSI channel. In this configuration a total of 16 SCSI IDs are available, one ID is consumed by the AM RAID Controller, and ID 3 is taken by the SAF-TE processor, leaving the fourteen remaining SCSI IDs available for the disk drives.
Installation 4 Connect the other end of the jumper cable to the Channel #0 SCSI connector on the left side or lower I/O Interface card in the second cabinet. NOTE: SCSI termination is automatic and requires no user configuration. Refer to “Termination” on page 21 for information on systems using DEC Fault bus protocol. 5 Turn on the power to the CR8e. After the power-on self-test has completed, Status and Channel Mode LEDs will be solid green.
Installation A Dual-Bus Enclosure with Two Single-Bus Enclosures With this configuration you will be able to expand the capacity of each SCSI channel of a Dual-Bus enclosure by adding a Single-Bus enclosure to each channel. This provides up to twelve drives per SCSI channel for a total capacity of 218 GB (using 18 GB disk drives) on each channel. CAUTION: Ensure that the power switch is in the OFF (O) position for both the host system and the CR8e subsystem before connecting any cables.
Installation 6 Connect the other end of the first jumper cable to the Channel #0 SCSI connector on the left side or lower I/O Interface card installed in the Single-Bus enclosure (Slave #1). 7 Connect one end of a second jumper cable to the Channel #1 SCSI connector on the left side or lower I/O Interface card installed in the Dual-Bus enclosure (master).
Installation Other Configurations There are many possible combinations of controllers and cabling schemes when configuring the CR8e subsystem enclosures. The sample configurations in the previous sections provide the basic configurations. However, the CR8e is based on an open-architecture expandable subsystem and allows for customization to fit your current or future needs.
3 Using the CR8e In this chapter you will find information on the subsystem’s enclosure notifications systems, and the proper use and operation of the Operator Control Panel. Notifications and Error Conditions When the CR8e subsystem has powered applied, it will perform a power on selftest (POST) procedure. During the POST operation, in addition to the LED notifications, you can also monitor the operation of the subsystem tests and the subsystem component conditions all from the Operator Control Panel.
Using the CR8e Firmware Error Conditions NOTE: None of the following error conditions will compromise the data integrity on the CR8e drives. Any of these failures listed below will generate the following: Channel Mode LED blinks amber eight times and the alarm will sound eight tones. After the tones have sounded the Channel Mode LED will change to green and normal operations will be attempted. These error conditions indicate that the LEDs and alarm functions may not be reliable.
Using the CR8e All drive LEDs will illuminate solid green regardless of the error conditions. The CR8e needs to be serviced if this error occurs consistently and is not cleared by cycling the power on the CR8e. Contact nStor Technical Support. NOTE: The CR8e subsystem will not respond to the firmware if this error occurs. LED Descriptions Use the following LED matrix to interpret the CR8e LEDs when the SAF-TE card is installed and an accompanied SAF-TE compliant RAID controller is installed.
Using the CR8e Operator Control Panel In this section you will find an explanation of the Operator Control Panel screen displays, as well as a description and subsequent procedures for using each of the OCP menu functions.
Using the CR8e Power Supply Error Conditions During normal operation, anytime one of the required number of power supplies becomes inoperative, you will hear a continuous alarm and a warning message will appear on the display. This message is simply a notification that the state of the power system is no longer redundant. Use the Component Status menu to determine which power supply has failed and identify the failed unit by the absence of its “DC Good” LED on the PSU.
Using the CR8e Main Menu From the Main Menu selection the following options are available: ■ Turn off the audible alarm ■ Select the hardware menu ■ Select the options menu To access the Main menu, press the Menu button. Use the up and down arrow buttons to make your selection and press the Enter button.
Using the CR8e Component Status The Component Status menu provides a view of the power supplies and fans installed in the CR8e and their current status. Component status can be either OK, Missing, or Failed. 1 If you receive a Hardware Error, access the Main menu and choose the Hardware Menu. 2 Use the up/down arrow buttons to select Component Status and press the Enter button. 3 Use the up/down arrow buttons scrolling to view the complete list of the components. Fan speeds are expressed in % of RPM.
Using the CR8e 1 To view the current enclosure configuration, access the Main menu and choose Hardware Menu. nStor nStor COMPONENT STATUS CONFIGURATION INFO POST RESULTS INTERNAL TEMP PROD: CR8L SAF-TE SLOT 1 CARD: nStor I/O INTERFACE SLOT 2 CARD: I/O INTERFACE RAM REVISION: 0.23 MENU ENTER ESCAPE ROM REVISION: MENU ENTER ESCAPE 1.05 ID: FFFFFFFFh MENU ENTER ESCAPE 2 Use the up/down arrow buttons to select Configuration Info and press the Enter button.
Using the CR8e 1 To view the POST results, access the Main menu and choose Hardware Menu. 2 Use the up/down arrow buttons to select Post Results and press the Enter button. 3 Use the up/down arrow buttons scrolling to view the complete POST results lists. 4 Press the Escape button to return to the previous menu or the Menu button to return to the Main “Status OK” screen. Internal Temp This screen displays the current internal enclosure temperature (highest of the two sensors).
Using the CR8e Options Menu From the Options Menu the following are available: SCSI ID Menu Heat Threshold SAFTE Chain ID Change Passcode Unlock Options ■ ■ ■ ■ ■ SCSI ID Menu From the SCSI ID Menu you can set SCSI IDs for drives attached to each of the SCSI channels (lower slot and upper slot), and set the CR8e SAF-TE processor ID (upper or lower bus if a Dual-bus module is installed).
Using the CR8e 4 Use the up/down arrow buttons to make your SCSI ID group selection and press the Enter button. Note the flashing set of IDs, if present. These will be the group currently configured.
Using the CR8e NOTE: When the SAF-TE card is set to off bus, LEDs and other error reporting are not driven by the subsystem’s off bus SAF-TE card, but are reported and controlled from the “Master” subsystem’s SAF-TE card. Reset Default IDs Selection Choosing the “Reset Default IDs” option will reset all subsystem SCSI IDs to their factory default settings. The default drive ID settings when a dual-bus module is installed are 0, 1, 2, and 4 for both the upper and lower drive groups.
Using the CR8e Heat Threshold NOTE: The Heat Threshold value is pre-set at the factory and should not be changed unless directed by nStor Technical Support. The default setting is 116°F/47.°C. Choose the Heat Threshold Menu to change the temperature value for the thermal monitoring system. If the temperature exceeds the value set here, a “Temperature Threshold Exceeded” screen will appear, see Internal Temp on page 45.
Using the CR8e SAFTE CHAIN ID This option allows the administrator to establish the intercabinet SAF-TE communication to support a master and slave cabinets. The master cabinet can report component failure for both the master cabinet and up to two slave cabinets to the AdminiStor Storage Management software. Each cabinet’s individual OCP will function normally for that cabinet’s components.
Using the CR8e Change Passcode This option allows the administrator to create or change a passcode that will protect access to all the items under the selections SCSI ID Menu, Heat Threshold, and Change Passcode. 1 Use the up/down arrow buttons to select Change Passcode and press the Enter button.
Using the CR8e Unlock Options This option allows the administrator to unlock the items found under the SCSI ID Menu, Heat Threshold, and Change Passcode selections. This enables the user to change these values and protects these values from being changed by those not authorized to do so.
4 Troubleshooting This chapter provides solutions for some of the problems you may encounter while using the CR8e subsystem. Common Enclosure Problems Symptom Fails to power on. Reason Solution Power cord not connected properly. Verify that the power cord is properly connected to the power module. Power not available at the outlet. If the CR8e is plugged into a three-hole grounded outlet, verify if power to the outlet has been interrupted.
Troubleshooting Symptom Reason Solution Operator Control Panel display indicates “Hardware Error.” Possible component failure. From the Operator Control Panel, “Hardware Menu” from the Main Menu and select “Component Status.” Scroll down through the list to locate the failed component. Follow the procedures in the Maintenance chapter to replace the failed component. LED and audible alarms indicate the system failed the diagnostic test. Power-on self-test failed.
Troubleshooting SCSI Bus Symptom SCSI Bus hangs, SCSI Bus excessive retries, and/or drives drop offline. Probable Cause Solution Faulty connectivity. Re-check the cables to the I/O Interface card and host adapter. Faulty I/O Interface card. Depending on how many subsystem are connected on the SCSI bus, you will need to perform some fault isolation. If all the drives on one bus are offline, start with the subsystem furthermost out on the chain. Disconnect the data cable.
Troubleshooting Common Problems and Interpreting the LED Indications LED Status 56 Reason Solution Status Indicator LEDs not functioning properly. SCSI data cable not properly connected. Verify that the SCSI data cable is properly connected to the CR8e SCSI-2 connector and to the controller card. A specific drive’s Status LED is blinking amber and the Channel Mode LED is steady amber. An assigned drive has failed. The CR8e is in a non-fault tolerant mode.
5 Maintenance In this chapter you will find the maintenance procedures to replace individual components, as well as the entire subsystem enclosure. Replacing a Disk Drive CAUTION: NOTE: Drives and printed circuit board components are sensitive to electrostatic discharge.
Maintenance 5 Insert the drive into the drive bay by aligning its rails into the drive bay slots, component side toward the right (rack) or down (tower). Seat the drive by applying pressure with your thumb to the front of the drive. 6 Press the Drive Latching Clips until they “snap” into place.
Maintenance NOTE: 2 When locating the failed power supply, the “DC Good” LED will be OFF. Using a flat-blade screwdriver, loosen the rear door access screw. Open the door to gain access to power supplies #1 and #2. If you are replacing the #3 power supply, loosen the two PSU Cover Plate screws. Remove the cover plate and skip to step 3. 3 Grasp the handle of the subject power supply and pull the supply out of the CR8e enclosure. NOTE: The orientation of the power supply being removed.
Maintenance Replacing the Cooling Fans CAUTION: NOTE: 1 Cooling fans must be replaced by qualified service personnel only. There is no need to power off the CR8e or the computer system. The cooling fans are hot swappable. Use the Operator Control Panel to identify the failed fan, refer to the illustration below to locate the components. Select “Hardware Menu” from the Main Menu and choose “Component Status.” For more information, refer to “Component Status” on page 43.
Maintenance 5 Remove the new cooling fan from the shipping carton and inspect the shipment. Save the packaging material. 6 With the fan guard facing toward the inside of the cabinet, slide the new fan into its housing. 7 Reconnect the fan’s power cable connector. The connector is keyed and will install only one direction. 8 Close the rear door panel. The door has a latch mechanism that holds the door in the open position. Squeeze the latch to release the door allowing it to be closed.
Maintenance 3 Loosen the two thumb screws that secures the card. 4 Insert the new I/O Interface card and tighten the thumb screws. Do not overtighten the fasteners. 5 Using the packaging materials from the replacement card, repackage the failed card and return it to nStor Corporation. Refer to the nStor Resource Guide for information on “Obtaining a Return Material Authorization.” Replacing a Fuse CAUTION: Power off the subsystem and disconnect the power cord before changing the fuse.
Maintenance 3 Using the tip of your finger nail, ease the holder away from the unit. 4 Once removed, separate the fuse from the holder. 5 Replace the fuse with one of identical type and rating (250V 10A). 6 Insert the fuse into the holder. 7 Insert the fuse holder into the unit and secure it. Push in while turning clockwise one quarter turn, locking it into place. Do not overtighten.
Maintenance 8 If you have a third power supply installed in the old subsystem, remove it and install the PSU into the new enclosure. 9 Reconnect and secure the power cord and data cables. 10 Install the drives into the new cabinet enclosure in exactly the same order as they were in the old subsystem. 11 Power ON the new CR8e subsystem and the host computer system. 12 Verify that all systems are operating normally.
A Glossary The following terms are used throughout this manual and may be helpful background information on the technology. Asynchronous Operations Operations that bear no relationship to each other in time and can overlap. The concept of asynchronous I/O operations is central to independent access arrays in throughput-intensive applications. Cache Flush Refers to an operation where all un-written blocks in a Write-Back Cache are written to the target disk.
Glossary 66 Disk Mirroring Data written to one disk drive is simultaneously written to another disk drive. If one disk fails, the other disk can be used to run the system and reconstruct the failed disk. Disk Spanning Several disks appear as one large disk using this technology. This virtual disk can then store data across disks with ease without the user being concerned about which disk contains what data. The subsystem handles this for the user.
Glossary Partition An array virtual disk made up of logical disks rather than physical ones. Also called logical volume. Physical Drive A physical array (or drive) is a collection of physical disks governed by the RAID management software. A physical drive appears to the host computer as one or more logical drives.
Glossary 68 SAF-TE Is the acronym for SCSI Accessed Fault-Tolerant Enclosures. It is a monitoring and communication specification developed by Conner (nStor) and Intel for sending and receiving server and storage system status information via the SCSI bus. Session Refers to the period of time between any two consecutive system shutdowns. System shutdown may be either a power off/on, or a hardware reset. SCSI Drive A disk drive equipped with a small computer system interface (SCSI).
B Technical Information SPECIFICATIONS CR8e Operating Environment Relative Humidity Operating/Non-Operating Power Requirements Rack Mount System Dimensions (HxWxD) w/o Handles Tower-Based System Dimensions (HxWxL) Weight (basic configuration of cabinet includes two cooling fans) Altitude Number of Drives Supported Total Capacity Interface Transfer Rate Host Interface Drive Interface HDD Termination Electromagnetic Emissions Requirements (EMI) 40°F to 94°F (+5°C to +34°C) 5% - 95% (non-condensing) 100 -
Technical Information CR8e (continued) Safety Requirements UL1950 CSA C22.2 #950 TUV/EN60950 89/336/EEC EMC Directive CE Compliance (EMC) Shock Operating Non-Operating Vibration Operating Non-Operating 1.0 G, 2 - 50 ms 20.0 G, 2 - 20 ms 5 - 500 Hz, 0.25 G (pk to pk) 5 - 500 Hz, 1.0 G (pk to pk) CONNECTORS AND JUMPERS This section provides information about the connector pinouts on the termination interface card and jumper settings on the backplane printed circuit board for your nStor CR8e subsystem.
Technical Information Signal Name Pin Number Conductor Number +DB(15) 4 7 +DB(P1) 5 +DB(0) Signal Name Pin Number Conductor Number – DB(15) 38 8 9 – DB(P1) 39 10 6 11 – DB(0) 40 12 +DB(1) 7 13 – DB(1) 41 14 +DB(2) 8 15 – DB(2) 42 16 +DB(3) 9 17 – DB(3) 43 18 +DB(4) 10 19 – DB(4) 44 20 +DB(5) 11 21 – DB(5) 45 22 +DB(6) 12 23 – DB(6) 46 24 +DB(7) 13 25 – DB(7) 47 26 +DB(P) 14 27 – DB(P) 48 28 GROUND 15 29 GROUND 49 30 DIFFSENS 16
Technical Information Jumpers CAUTION: Jumper configuration to be performed by qualified service personnel only. Disconnect the AC power cord prior to accessing any component inside the rear cabinet. Located on the backplane printed circuit board are six jumper blocks. From these jumpers system integrators can manually configure the CR8e subsystem. To change the jumper setting, pull the jumper plug off its pin(s) and carefully fit in down onto the pin(s) as indicated.
Technical Information JP2 (SCSI-to-SCSI Configuration) CAUTION: Jumper configuration to be performed by qualified service personnel only. This jumper (JP2) is used to place the SCSI-to-SCSI RAID controller in a configuration that is known to the CR8e subsystem. This process is accomplished by adding jumpers to JP2. The jumper block is a four position dual-row header. 8 1 S2S CONFIG JP2 Jumper Positions SCSI-to-SCSI Settings 1&2 Reserved.
Technical Information Jumper Positions 1&2 3&4 5&6 7&8 SCSI-to-SCSI ID Settings ON OFF OFF ON 9 OFF OFF OFF ON 8 ON ON ON OFF 7 OFF ON ON OFF 6 ON OFF ON OFF 5 OFF OFF ON OFF 4 ON ON OFF OFF 3 OFF ON OFF OFF 2 ON OFF OFF OFF 1 OFF OFF OFF OFF 0 JP4 (SCSI ID Settings) CAUTION: Jumper configuration must be performed by qualified service personnel only. These jumpers (JP4) are used to manually set the SCSI IDs for all of the disk drive slots.
Technical Information Jumper Positions for Drives 1, 2, 3, and 4 ID Settings 1&2 3&4 5&6 7&8 SCSI ID (1, 2, 3, and 4) ON ON ON OFF 10, 11, 12, 13 OFF ON ON OFF 10, 11, X, X Jumper Positions for Drives 5, 6, 7, and 8 ID Settings 9 & 10 11 & 12 13 & 14 15 & 16 SCSI ID (5, 6, 7, and 8) ON ON ON ON 0, 1, 2, 3 OFF ON ON ON 0, 1, 2, 4 ON OFF ON ON 4, 5, 6, 7 OFF OFF ON ON 4, 5, 6, 8 ON ON OFF ON 5, 6, 7, 8 OFF ON OFF ON 5, 6, 8, 9 ON OFF OFF ON 8, 9, 10, 11 O
Technical Information Pins 1 and 2 Pins 3 and 4 Drive Spinup Mode OFF ON Motor spins up only on SCSI “start” commands. OFF OFF Motor spins up at DC power on. J15 (FAN) and J17 (OEM FAN) CAUTION: Jumper configuration to be performed by qualified service personnel only. There are two separate fan connectors that are located at J15 and J17. Fan connector J15 is used when a SAF-TE card is present in the CR8e. When the fans are plugged into J15, the SAF-TE card controls and monitors fan speed.
Index A Activity LEDs 10 Animated icon 41 Audible Alarm 3 B Backplane 72 C Cables 20 Cabling Configuration 20 Change Passcode 51 Channel Mode LED 9 Component Installation 17 Component Status 43 Components Activity LEDs 10 Audible Alarm 3 Channel Mode LED 9 Configuration Modules 7 Cooling Fans 4 Door Lock 5 Fan Status LED 10 Fault LEDs 11 Hot Swappable Disk Drives 4 I/O Interface Card 6 Operator Control Panel 8 Power Cord Connector 6 Power Supply Status LED 10 Power Switch 5 Power-On LED 9 SAF-TE 11 SAF-
Fan Status LED 10 Fast SCSI 20 Dual-Bus Module (Single Cabinet) 26 Dual-Bus Module (Two Cabinets) 28 Dual-Bus Module Cabinet w/Two Single-Bus Module Cabinets 34 Single-Bus Module (Single Cabinet) 30 Fast Wide SCSI 20 Fast Wide SCSI Mode 26 Fast Wide SCSI mode 20 Fast-20 20 Firmware Error Conditions 38 Firmware information 43 Fuse 6 Replacement 62 Fuse type 63 Jumpers 72 G O Glossary Disk Mirroring 66 Disk Spanning 66 Disk Striping 66 Duplexing 66 Fault-Tolerant 66 RAID 67 OB (Off Bus) 47 Operating Envi
Registration vii Replacing a Drive 57 Replacing a Fuse 62 Replacing a Power Supply 58 Replacing the Cooling Fans 60 Replacing the CR8e Cabinet 63 Reset Default IDs Selection 48 Resource Guide vii ROM Checksum 38 S SAF-TE 68 SAFTE CHAIN ID 50 SCSI Access 37 SCSI Accessed Fault-Tolerant Enclosure 11 SCSI Bus Access Failure 38 SCSI Bus Hangs 55 SCSI cable length limits 20 SCSI ID Menu 46 Self Test 37 Setup 13 Shielded data cables 21 Shock 70 Single-Bus module 17 Single-Bus Module (Single Cabinet) 30 Single-Bu
80 Index
