Re: Estimate xfs_repair run time

[Gionatan Danti <g.danti@assyoma.it>]

Hi Dave,

Il 20-08-2017 04:04 Dave Chinner ha scritto:
> 
> Yes. And there's no hard and fast number we can give you because
> runtime will depends on the amount and density of the metadata, the
> speed of the underlying storage, how much RAM you have and how badly
> corrupted the filesystem is.
> 
> IOWs, runtime can vary from a few minutes to a few days as you vary
> those parameters, and there's really no way to tell in advance where
> in that massive variance any specific production filesystem will
> land.
> 
> Doing a test run (xfs_repair -n) to get a ballpark figure during a
> planned downtime period is the only way you'll get any idea of the
> *best case* repair duration on a *clean* filesystem. But the moment
> repair finds corruptions, all guesses you can make about runtime go
> out the window...

ok, so I at least need to try & see how well xfs_repair does on a clean 
filesystem.

Thanks.

-- 
Danti Gionatan
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