Product manual
Table Of Contents
- VTrak Product Manual
- Contents
- Chapter 1: Introduction to VTrak
- Chapter 2: VTrak Installation
- Unpacking the VTrak
- Mounting VTrak in a Rack
- Installing Disk Drives
- Making Management and Data Connections
- Setting Up Serial Cable Connections
- Connecting the Power
- Chapter 3: VTrak Setup
- Chapter 4: Management with WebPAM PROe
- Logging into WebPAM PROe
- Choosing a Language
- Perusing the Interface
- Logging out of WebPAM PROe
- Working with the Storage Network
- Working with Subsystems
- Viewing Subsystem Information
- Saving a System Service Report
- Setting an Alias for the Subsystem
- Setting Redundancy for the Subsystem
- Setting Cache Mirroring for the Subsystem
- Setting Subsystem Date and Time
- Making NTP Settings
- Synchronizing with a NTP Server
- Viewing the Runtime Event Log
- Saving the Runtime Event Log
- Clearing the Runtime Event Log
- Viewing NVRAM Events
- Saving NVRAM Events
- Clearing NVRAM Events
- Viewing Current Background Activities
- Making Background Activity Settings
- Running Background Activities
- Running Media Patrol
- Running PDM
- Viewing Scheduled Activities
- Scheduling an Activity
- Deleting a Scheduled Activity
- Viewing Lock Status
- Setting the Lock
- Renewing the Lock
- Releasing the Lock
- Managing Users
- Managing the Network Connection
- Managing Fibre Channel Connections
- Managing SAS Connections
- Managing Storage Services
- Monitoring Performance
- Managing Software Services
- Exporting the User Database
- Exporting a Configuration Script
- Importing a User Database
- Importing a Configuration Script
- Updating the Firmware
- Viewing Flash Image Information
- Restoring Factory Defaults
- Clearing Statistics
- Saving a System Service Report
- Shutting Down the Subsystem
- Starting Up After Shutdown
- Restarting the Subsystem
- Managing Controllers
- Managing Enclosures
- Managing Physical Drives
- Managing UPS Units
- Managing Disk Arrays
- Viewing a List of Disk Arrays
- Creating a Disk Array
- Creating a Disk Array - Automatic
- Creating a Disk Array - Express
- Creating a Disk Array - Advanced
- Deleting a Disk Array
- Viewing Disk Array Information
- Making Disk Array Settings
- Creating a Logical Drive
- Deleting a Logical Drive
- Migrating a Disk Array
- Rebuilding a Disk Array
- Running Media Patrol on a Disk Array
- Running PDM on a Disk Array
- Transitioning a Disk Array
- Preparing a Disk Array for Transport
- Managing Logical Drives
- Managing Spare Drives
- Working with the Logical Drive Summary
- Chapter 5: Management with the CLU
- Initial Connection
- Running Quick Setup
- Managing the Subsystem
- Managing the Controllers
- Managing the Enclosure
- Viewing the Enclosures Summary
- Viewing Enclosure Information
- Making Enclosure Settings
- Viewing FRU VPD Information
- Viewing Power Supply Status
- Locating a Power Supply
- Viewing Cooling Unit Status
- Viewing Temperature Sensor Status
- Viewing Voltage Sensor Status
- Checking the Batteries
- Reconditioning a Battery
- Locating an Enclosure
- Viewing Enclosure Topology
- Managing Physical Drives
- Managing Disk Arrays
- Viewing a List of Disk Arrays
- Creating a Disk Array
- Creating a Disk Array - Automatic
- Creating a Disk Array - Express
- Creating a Disk Array - Advanced
- Deleting a Disk Array
- Viewing Disk Array Information
- Setting an Alias for a Disk Array
- Accepting an Incomplete Array
- Enabling Media Patrol and PDM on a Disk Array
- Preparing the Disk Array for Transport
- Rebuilding a Disk Array
- Migrating a Disk Array
- Running PDM
- Running Transition on a Disk Array
- Locating a Disk Array
- Creating a Logical Drive
- Deleting a Logical Drive
- Managing Spare Drives
- Managing Logical Drives
- Managing the Network Connection
- Managing Fibre Channel Connections
- Managing SAS Connections
- Managing Background Activity
- Working with the Event Viewer
- Working with LUN Mapping
- Managing UPS Units
- Managing Users
- Working with Software Management
- Flashing through TFTP
- Viewing Flash Image Information
- Clearing Statistics
- Restoring Factory Defaults
- Shutting Down the Subsystem
- Starting Up After Shutdown
- Restarting the Subsystem
- Making Buzzer Settings
- Chapter 6: Maintenance
- Updating the Firmware in WebPAM PROe
- Updating the Firmware in the CLU
- Downloading the Firmware Image File
- Updating the Firmware
- Restarting - Single RAID Subsystem, Telnet
- Restarting - RAID with JBOD Expansion, Telnet
- Restarting - Single RAID Subsystem, SSH
- Restarting - RAID with JBOD Expansion, SSH
- Restarting - Single RAID Subsystem, Serial
- Restarting - RAID with JBOD Expansion, Serial
- Replacing a Power Supply
- Replacing a Cooling Unit Fan or Blower
- Replacing a Cache Battery
- Replacing a RAID Controller - Dual Controllers
- Replacing a RAID Controller - Single Controller
- Chapter 7: Technology Background
- Chapter 8: Troubleshooting
- VTrak is Beeping
- LEDs Display Amber or Red
- CLU Reports a Problem
- WebPAM PROe Reports a Problem
- Event Notification Response
- Critical & Offline Disk Arrays
- Incomplete Array
- Physical Drive Problems
- Enclosure Problems
- Controller Enters Maintenance Mode
- Connection Problems
- Browser Does Not Connect to WebPAM PROe
- Unsaved Data in the Controller Cache
- Chapter 9: Support
- Appendix A: Useful Information
- Appendix B: Multipathing on Windows
- Before You Begin
- Installing PerfectPath
- Verifying Installation
- Running Perfect Path View
- Monitoring Your LUNs and Paths
- Features and Settings
- Troubleshooting
- Updating PerfectPath
- Repairing PerfectPath
- Removing PerfectPath
- Appendix C: Multipathing on Linux
- Index
VTrak E-Class Product Manual
294
Hot Spare Drive(s)
A hot spare is a disk drive that is connected to the disk array system but is not
assigned as a member of the disk array. In the event of the failure of a drive
within a functioning fault tolerant disk array, the hot spare is activated as a
member of the disk array to replace a drive that has failed.
VTrak will replace a failing disk drive in a disk array with an unassigned drive, if
one is available. The unassigned drive is not part of any disk array. Such a drive
is called a hot spare drive. There are two types:
• Global – An unassigned disk drive available to any disk array on the VTrak.
• Dedicated – An unassigned disk drive that can only be used by a specified
disk array.
The hot spare policy function lets you choose whether a disk array will access
any unassigned disk drive or a designated drive in the event of disk drive failure.
See “Managing Spare Drives” on page 159 (WebPAM PROe) or page 201 (CLU)
for information on how to make this setting.
The spare drive effectively takes the place of the failed drive and the RAID
system immediately begins to rebuild data onto the drive. When the rebuild is
complete, the disk array is returned to fault tolerant status.
VTrak includes a function that enables you to return a hot spare drive from a disk
array back to spare status. When you create the hot spare drive, check the
Revertible box to enable this feature. See “Transition” on page 303.
See also “Critical & Offline Disk Arrays” on page 336.
Partition and Format the Logical Drive
Like any other type of fixed disk media in your system, a RAID logical drive must
also be partitioned and formatted before use. Use the same method of
partitioning and formatting on an logical drive as you would any other fixed disk.
Depending on the operating system you use, there may or may not be various
capacity limitations applicable for the different types of partitions.
RAID Level Migration
To migrate a disk array is to do one or both:
• Change its RAID level
• Increase the number of disk drives (sometimes called Expansion)
On VTrak, RAID level migration is performed on the disk array but it applies to the
logical drives. Migration takes place on an existing Functional disk array without
disturbing the existing data. While the disk array is migrating, you can access the