Be sure to consider a save strategy for your independent disk pools.
A good save strategy is just as important for independent disk pools as
it is with the rest of your system information. If you use independent disk
pools, it is recommended that you use Backup, Recovery and Media Services (BRMS) to save your
independent disk pool data. If you need to perform a recovery, BRMS simplifies
the process. However, BRMS is not required; see Save independent ASPs for more information. In the case
of disk failures or a complete system loss, you may need to follow recovery
procedures to restore the data you have saved. See the Backup and Recovery 
manual for
steps to restore information to the independent disk pools.
If you experience problems accessing an independent disk pool or making it available, the problem might be with the disk pool. The configuration source might be corrupted or the primary and secondary disk pools might need to be re-associated. See the following procedures for steps to recover the disk pools: