Managing Global Hot Spares - HP Surestore Disk Array 12h - And FC60 Advanced User's Manual

To replace a LUN, type:
amcfg -R <cntrlrID>:<LUN> -d <channel:ID>,<channel:ID>.....
-r <RAIDlevel> <options> <ArrayID>
•
The parameters and options available when replacing a LUN are the same as those used
when binding a LUN. See
Command Examples
The following example replaces existing LUN 0 on disk array 0000005EBD20. The new LUN
is RAID 5, uses a stripe segment size of 16
each disk is in a different enclosure for high availability, and that there are no spaces
between the individual disk parameters.
amcfg -R A:0 -d 1:1,2:2,3:1,4:4,5:3 -r 5 -s 16 0000005EBD20

Managing Global Hot Spares

Global hot spares provide an additional level of protection for the data on your disk array.
A global hot spare automatically replaces a failed disk, restoring data redundancy and
performance that may suffer while in degraded mode. For maximum protection against
disk failure it is recommended that you add one global hot spare per channel.
For more information on using global hot spares, see
If you have disks of different capacities in your disk array, always select
C
AUTION
disks of the largest capacity for your global hot spares. This ensures that any
disk failure is protected. See
information on selecting disks for global hot spares.
If a larger disk is used to replace a smaller disk that has failed, the difference
in capacity will be unused. For example, if an 18-Gbyte disk is used as a
global hot spare for a 9-Gbyte disk, the remaining 9 GB of the global hot spare
remain unused.
"Binding a LUN" on page
bytes, and is owned by controller A. Note that
K
"Global Hot Spare Disks" on page 61
Managing the Disk Array Using Array Manager 60
289.
"Global Hot Spares" on page 248.
for more
295