[DRBD-user] Write barriers

Lars Ellenberg lars.ellenberg at linbit.com
Tue Mar 10 13:52:17 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.


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.

-- 
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com

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