ZFS - moving from a zraid1 to zraid2 pool with 1.5tb disks

Damien Fleuriot ml at my.gd
Mon Jan 3 15:08:46 UTC 2011

On 1/3/11 2:17 PM, Ivan Voras wrote:
> On 12/30/10 12:40, Damien Fleuriot wrote:
>> I am concerned that in the event a drive fails, I won't be able to
>> repair the disks in time before another actually fails.
> An old trick to avoid that is to buy drives from different series or
> manufacturers (the theory is that identical drives tend to fail at the
> same time), but this may not be applicable if you have 5 drives in a
> volume :) Still, you can try playing with RAIDZ levels and probabilities.

That's sound advice, although one also hears that they should get
devices from the same vendor for maximum compatibility -.-

Ah well, next time ;)

A piece of advice I shall heed though is using 1% less capacity than
what the disks really provide, in case one day I have to swap a drive
and its replacement is a few kbytes smaller (thus preventing a rebuild).

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