* How does dm-thinp handle the our of space error?
@ 2011-03-09 3:59 Xie Gang
2011-03-09 8:56 ` Heinz Mauelshagen
0 siblings, 1 reply; 2+ messages in thread
From: Xie Gang @ 2011-03-09 3:59 UTC (permalink / raw)
To: dm-devel
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Hi,
The storage may run out of space and could not provision the space. So, how
does thinp handle such error since thinp is transparent to uper layer
filesystem?
Thanks,
--
Xie Gang
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* Re: How does dm-thinp handle the our of space error?
2011-03-09 3:59 How does dm-thinp handle the our of space error? Xie Gang
@ 2011-03-09 8:56 ` Heinz Mauelshagen
0 siblings, 0 replies; 2+ messages in thread
From: Heinz Mauelshagen @ 2011-03-09 8:56 UTC (permalink / raw)
To: device-mapper development
On Wed, 2011-03-09 at 11:59 +0800, Xie Gang wrote:
> Hi,
>
> The storage may run out of space and could not provision the space.
> So, how does thinp handle such error since thinp is transparent to
> uper layer filesystem?
It either postpones the bios until userspace has reacted growing the
pool _or_ it errors the ios depending on the related policy set.
This is defined by constructore parameter
* 4: policy = "error|postpone":
* if pool runs full, bios will be errored or postponed
* (ie. application writes will stall)
Heinz
>
> Thanks,
>
> --
> Xie Gang
>
> --
> dm-devel mailing list
> dm-devel@redhat.com
> https://www.redhat.com/mailman/listinfo/dm-devel
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2011-03-09 3:59 How does dm-thinp handle the our of space error? Xie Gang
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