I am an IT soulutions architect providing storage solutions to customers. One my my client where my company deployed netapp storage had encountered an issue i.e. their disk0 of aggregate 0 becomes which resulted in complete failure of the storage system. Is there any remedy to this issue?
If you have let Data OnTap configure your initial aggregate (AGGR0), it will most likely have only 3 disks in it. Should any of the disks fail the system will pick up a spare and begin to rebuild the data on it. The assumption is that you have allowed this aggregate to be created as RAID-DP, in this case you actually have 2 parity drives and can sustain a double disk failure on the system.
To verify what you are looking at, from a command line run "sysconfig -r". This will list all of the RAID groups for you. I have done that on a system and the output of the system is: