Re: Raid 5 rebuild and Raid 6 reshape question

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On Sun 19 Apr 2015 10:43:32 AM Mikael Abrahamsson wrote:
> On Sat, 18 Apr 2015, Thomas Fjellstrom wrote:
> > problem. I was just curious as to how long an actual raid5->raid6
> > reshape would normally be or this setup. I expect it normally can take a
> > while as it has to rewrite a lot of data (11TiB worth).
> 
> In my experience it takes 5-15 times longer than a normal resync takes, to
> reshape from raid5->raid6. So for your 3TB disk size case, I'd say expect
> 4-8 days or so.

Ah. Good to know. mdstat was saying about 4-5 days. I kindof thought that was 
about normal given the amount of work involved to restripe all drives and 
calculate parity.

Thanks :)

-- 
Thomas Fjellstrom
thomas@xxxxxxxxxxxxx
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