Re: Blog: "BTRFS is effectively stable"

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On Fri, Oct 29, 2010 at 4:38 PM, Chris Samuel <chris@xxxxxxxxxxx> wrote:
> A friend of mine who builds storage systems designed for HPC
> use has been keeping an eye on btrfs and has just done some
> testing of it with 2.6.36 and seems to like what he sees in
> terms of stability.

That's a *very* misleading conclusion to come to based solely on a
single file I/O test.  It's more realistic to say "stable under fio
load in ideal conditions".

For example:
  No device-yanking tests were done.
  No power-cord yanking tests were done.
  No device cables were yanked, shaken, or plugged/unplugged in rapid
succession.
  No "dd the raw device underneath the filesystem while doing file
I/O" tests were done.
  No recovery tests were done.

IOW, you can't really say "it's stable" across the board like that.

-- 
Freddie Cash
fjwcash@xxxxxxxxx
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