IBM Advanced SerialRAID Adapters SA33-3285-02, User Manual

Page: 229 / 531

Chapter 9. Using the SSA Spare Tool
The SSA Spare Tool helps you to manage your SSA networks when Logical Volume
Manager (LVM) mirrored volume groups are used. It works with the LVM to identify
stale partitions or missing physical volumes in LVM mirrored volume groups. If the SSA
Spare Tool finds any stale partitions or missing physical volumes:
v
It automatically resynchronizes the stale partition if no replacement hardware is
needed.
v
It sends an email message that describes the actions taken, and indicates whether a
disk drive must be exchanged for a new one.
v
It logically exchanges the failed disk drive in the volume group with a preassigned
spare disk drive. This process is called hot sparing.
v
It synchronizes the new disk drive with the remaining disk drives in the volume
group.
v
It notifies you when it has logically exchanged a failed disk drive, and has
synchronized the replacement disk drive with the other disk drives in the volume
group.
When a failed disk drive has been physically exchanged and the data has been
resynchronized, the SSA Spare tool can use various scripts to:
v
Move the data from the temporary spare disk drive to the replacement disk drive.
v
Prepare the spare disk drive so that it can again be used if another disk drive fails.
To obtain the SSA Spare Tool, go to the uniform resource locator (URL) address, and
follow the instructions that are given there. The address is:
http://www.storage.ibm.com/hardsoft/products/ssa
209
|