Defining Hot-Spare Drives
Defining Hot-Spare Drives
A hot-spare (HSP) drive is a hard disk drive that is defined for automatic use when a similar drive fails.
The drive capacity of the HSP drive must be equal to or greater than the capacity of the drive being replaced.
Note:
- If you want to have a hot-spare drive (HSP) or a standby hot-spare drive (SHS) and also
assign RAID level 5 to one of the logical drives, you must have at least four hard disk drives.
- In the event of a drive failure in an array that contains a logical drive assigned RAID level 0,
the ServeRAID controller will not activate a hot-spare drive.
You can use the Create/Delete/Copy/Log menu to define a RDY drive as a hot-spare drive.
Or, you can change the state of a SBY, DHS, SHS, or RDY drive to HSP (see
'Changing Device States').
To define a RDY drive as a hot-spare drive:
- Start the ServeRAID Configuration program (see
'Starting the ServeRAID Configuration Program').
- Select Create/Delete/Copy Log Drive from the Main Menu, then, press Enter.
- Select Define/Undefine Hot Spare Drive from the next menu, then, press Enter.
- Use the Up Arrow (
) or Down Arrow ( 
) key to highlight the RDY drive that you want to define as the
hot spare (HSP), then, press Enter.
The drive state changes from RDY to HSP. You can press Enter to toggle between the HSP and RDY states.
- Press Esc to make the change, then, press Esc again to return to the Main Menu.
- To enable or disable the hot-swap rebuild parameter,
continue with 'Enabling or Disabling Hot-Swap Rebuild'.
- Back up the disk-array configuration information to diskette.
See 'Backing Up the Disk-Array Configuration'
for instructions.
Enabling or Disabling Hot-Swap Rebuild: The default setting for the hot-swap
rebuild parameter is Disable. When you set the hot-swap rebuild parameter to Enable, the ServeRAID
controller can automatically rebuild a defunct (DDD) drive when you replace it.
The ServeRAID controller will rebuild a defunct drive automatically when all of the following conditions exist:
- The hot-swap rebuild parameter is set to Enable.
- The defunct drive is part of a RAID level 1 or RAID level 5 logical drive.
- The capacity of the replacement drive is equal to or greater than the capacity of the defunct drive.
- No rebuild, synchronization, or RAID level change operation is in progress.
When these requirements are met, the ServeRAID controller automatically initiates a rebuild of the drive
without user intervention.
To enable or disable hot-swap rebuild:
- Start the ServeRAID configuration program (see
'Starting the ServeRAID Configuration Program').
- Select Advanced Functions from the Main Menu, then, press Enter.
- Select Display/Change Adapter Parameters from the next menu, then, press Enter.
- Select Enable/Disable Hot Swap Rebuild, then, press Enter.
A screen similar to the following appears:
- Use the Up Arrow ( ) or Down Arrow ( ) key to highlight the selection -
enable or disable, then, press Enter
- Press Esc to return to the Advanced Functions menu.
- Back up the disk-array configuration information to
diskette. See to 'Backing Up the Disk-Array Configuration'
for more information.
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