[DRBD-user] Effectiveness of barriers on disks with volatile write cache

Nicolae Mihalache xpromache at gmail.com
Sat Sep 25 23:51:31 CEST 2010

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

Thanks for your answer. Now it makes sense.
I guess you could do some optimization to avoid sending a barrier too often.


On Fri, Sep 24, 2010 at 8:53 PM, Lars Ellenberg
<lars.ellenberg at linbit.com> wrote:
> DRBD's usage of barriers/cache flushes is to make sure
> we won't "forget" to resync parts that need to be synced
> after a node crash.
> --

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