[OpenIndiana-discuss] ZFS tolerance

[Till Wegmueller]

Hi

It can get yarring. Try to make raids with drives that are similar and 
combine them into a mutt pool then you should get the least effect. 
Otherwise the slowest drive may dictate the pools performance.

There are more tuning options, but I hope this helps a little.
Greetings
Till

On 29/10/2022 10.36, Michelle wrote:
> Hi All,
> 
> I am doing a small idiotic project, putting together odds and sods of
> hard drives to make a RAID set. You know the kind of thing, the hard
> drives that are remnants of old projects but you don't want to throw
> them out because... well... they work!
> 
> So I was wondering that in a pile of hard drives, 5400 to 7200 RPM,
> green and red drives than spin down and up again, and blue/black drives
> that keep running....
> 
> Just how much tolerance does ZFS have regarding the timings of using
> different devices? Particularly when under sustained transfer to the
> server.
> 
> My target will be RAID 0+1 with partitions on larger drives, to pair
> against smaller drives.
> 
> Grateful for any thoughts/information please.
> 
> Many thanks,
> 
> Michelle.
> 
> 
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