[DRBD-user] Write barriers

jack marrow jackmarrow2 at gmail.com
Tue Mar 10 14:27:46 CET 2009

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


2009/3/10 Lars Ellenberg <lars.ellenberg at linbit.com>:
> On Tue, Mar 10, 2009 at 11:24:36AM +0100, jack marrow wrote:
>> Hello,
>>
>> lvm doesn't support write barriers, but plain old ext3 on a device
>> mounted with -o barrier=1 does.
>>
>> In the drbd8.pdf documentation it seems that drbd does indeed support
>> write barriers, but in a message at  Sep 12, 2008, 10:15 AM  on this
>> mailing list, it seems drbd does not.
>>
>> Does drbd support write barriers?
>
> No.
> Not yet.
>
> Though it uses them, when available (and not disabled by configuration)
> in various write-after-write dependency situations.
>

Thanks.



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