[DRBD-user] File data corrupt when I switch Nodes

Kevin Izzet Kevin.Izzet at nsc.com
Mon Sep 27 13:08:06 CEST 2004

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

Hi Lars/Philipp

Finally found the time to try out the 0.7.4 version on our Suse 9.0 Dev 
Cluster and the results are perfect,
I can now switch between nodes without any data corruption (using a Stock 
SUSE 2.4 Kernel).

Unfortunately I can't move to a 2.6 kernel yet as we use FDDI cards for 
the public network and the
driver for these isn't supported on 2.6, but at least I can upgrade from 
our 0.6.12 cluster on Redhat 7.2
to Suse 9.0 and drbd 0.7.4 and still sleep at night.....

Thanks for all the hard work......


Kevin Izzet

Database / Unix / Linux  Administrator
Tel:     (Code)+44(0)1475 655606
Fax:    (Code)+44(0)1475 637755
Email:  Kevin.Izzet at nsc.com

"Lars Ellenberg" <Lars.Ellenberg at linbit.com>
Sent by: drbd-user-bounces at lists.linbit.com
19/09/2004 22:22

        To:     drbd-user at lists.linbit.com
        Subject:        Re: [DRBD-user] File data corrupt when I switch Nodes

/ 2004-09-03 11:34:55 +0200
\ Philipp Reisner:
> On Wednesday 01 September 2004 14:53, Kevin Izzet wrote:
> > Hi Philipp,
> >
> > Double checked and I haven't been using the amended module, my 
mistake, I
> > have
> > now sorted this out and have recreated the primary side (mke2fs / 
> > file system).
> >
> Hi Kevin,
> Any updates if the file corruption is still happening ?
> BTW, 
> * This is the first report of file curruptions in an very long time.
> * We did intesive tests, and were looking for file corruption here
>   at LINBIT and at SUSEs labs.
> * It seems that threads die on your machine...

hm. this may have been related to the use of 2.4.x kernel with HIGHMEM.
we had a kernel 2.4+highmem bug fixed with DRBD 0.7.4, so please try 
if you like.

or, of course, use 2.6. kernels, which are what we develop on/for.

                 Lars Ellenberg

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