Monday, November 15, 2010

Finding failed disks on EMC Celerra

In order to find failed disk(s) on EMC Celerra NAS storage
we need to query the storage processor) from its control station.
Each Celerra has two storage processors - SPa and SPb.
To find the IP's of the SP's we will look inside /etc/hosts: 
$cat /etc/hosts |grep A_CK |awk '{print $1}'
192.168.1.200 
We will query one of the SP's to get the FAULTED disks:
$/nas/sbin/navicli -h 192.168.1.200 getcrus |grep -i FAULT
DAE2 Bus 1 Enclosure 0       *FAULT* 
  (Bus 1 Enclosure 0 : Faulted; Bus 1 Enclosure 0 Disk 5 : Removed)
Next, to find out number of spare disks run:  
$/nas/sbin/navicli -h SPA getlun |grep Spare
RAID Type:                  Hot Spare
Bus 0 Enclosure 0  Disk 5   Hot Spare Ready
RAID Type:                  Hot Spare
Bus 0 Enclosure 0  Disk 11   Hot Spare Ready
RAID Type:                  Hot Spare
Bus 0 Enclosure 0  Disk 13   Hot Spare Ready
RAID Type:                  Hot Spare
Bus 0 Enclosure 0  Disk 14   Hot Spare Ready
RAID Type:                  Hot Spare
So in our case we got more 4 spare disks... 

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