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Disk zero spares

Disk zero spares

(OP)
Does anyone know what exactly does the command "Disk zero spares" do?  Everything that I have found on this seems to point that it removes all data from spare disks.  Does it also write a series of zeros to the disk?  I need to move filers from one location to another and I do not want to use the disk sanitizer command as it is permanent and has some loss of command functionality on the filer.

Thanks in advance.

Bob K.

RE: Disk zero spares

The disk is overwritten by zero's. They do this for parity reasons. When a spare is introduced into a raid array, and all bits are at 0, when parity is calculated in the array, there will never be an impact:

1+0=1
0+0=0

Disk sanitization, this is a different story. The disk is overwritten multiple times by random patterns, making it impossible to recover the data

best regards,

R.

NetApp Certified NCDA/NCIE-SAN

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