[DRBD-user] Using flashcache with drbd v8.4.3

Olivier Le Cam Olivier.LeCam at crdp.ac-versailles.fr
Mon Mar 25 03:17:46 CET 2013

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

Hi -

I tried to upgrade to v8.4.3 which does significantly improve 
performance except that when I enable SSD flashcache the IOPS are 
dropping to less 30! The SSD model is an Intel DC S3700 (HW RAID1, 3ware 

It works OK with the 8.3.7 version provided in squeeze but I'm actually 
concerned to deal with that IO limits bug:

Problem is that I could get v8.3.13 and later to compile on 
Debian/Squeeze (I suspect that the 2.6.32 kernel is not supported 
anymore, right?).

Any idea/comment will be greatly appreciate. Thanks in anticipation!


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