[DRBD-user] DRBD and write cache

Siim Vahtre siim_ at mumak.ee
Wed Mar 14 06:28:22 CET 2007

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

Thank you for your answer!

> if your hardware pretends to have done something which it actually did 
> not do, there is no drbd magic to cover for you.

I am completely aware of that and I was not hoping for any "magic". I just 
thought that maybe thanks do ordered writes and some consistency 
flags/counters, it would be possible to figure out that something is wrong 
(data in cache wasn't written out) and force full sync every time one of 
the nodes dies. In that case, unless the other node dies while syncing, I 
should be at the safe side.

Just for clarification: I am simply considering different options and 
possible consequences of those options. I am not trying to use broken 
hardware in hope that DRBD will solve all my problems.

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