Wednesday, 12 October 2011

Raid 4

Raid 4


  • It will protect against the loss of just one disk per raid group.
  • RAID 4 will not "protect against multiple disk failures"  
  • If suppose some disk failed in different raid group, there won't be any data loss.

In Raid 4 Required minimum 2 disks required to create one aggregate

One disk for data disk
One disk for parity disk

RAID 4

Example:

filer>Aggr create -r 5 -t raid4 aggr1 10

aggr1 will randomly take 10 disk from spare disk and -r 5 which means each raid group should have 5 disks
it will create two raid group and each raid group have 5 disks.



http://netapplines.blogspot.in/2013/07/when-any-disk-failed-in-netapp-how-its.html

No comments:

Post a Comment