[DRBD-user] degradation of performance -90% - v.0.7.5

Lars Ellenberg lars.ellenberg at linbit.com
Fri Sep 28 09:53:30 CEST 2012

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

On Thu, Sep 27, 2012 at 12:41:40PM -0700, Mike F wrote:
> Hello everyone,
> I am running drbd on 2.4.x, 2.6.x. and 3.x kernels - only one systems gives me this following problem:
> [ this is 0.7.25 on 2.4.21-51.ELsmp ( Rhel3 32 bit ) - 16GB RAM.... 8 cores,  etc ]

You are kidding me.

> I spent days to see if tweaking drbd, tcp, vm would change this behavior - no luck...


> If I am unable to find the solution I might need to put the "adjust" in the cron - which I would hate to do...
> unfortunately I >cannot< upgrade the kernel, nor the linux release... any other 'fix' should be possible....

Virtualize, and put the DRBD in the host system?


Of course you could contact LINBIT...

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

More information about the drbd-user mailing list