[DRBD-user] XFS issues

Federico Sevilla III jijo at free.net.ph
Fri Apr 8 02:32:20 CEST 2005

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


Hi everyone,

On Tue, Apr 05, 2005 at 09:11:24AM +0200, sebastian schmitzdorff wrote:
> as I found out recently DRBD still has severe issues using the sgi XFS
> filesystem. The primary System will hang hard when starting the
> Sychronization, the secondary is actually unaffected. The error is
> reproducable on Kernel 2.6.10 and drbd 0.7.7 as well as on kernel
> 2.6.11 and drbd 0.7.10. The first setup is from myself and the second
> setup is from a person that has the same error's.

Last night I just completed a two-node cluster running Debian GNU/Linux
Woody with some backports from Backports.org to allow it to run Linux
kernel 2.6.11.6 and DRBD 0.7.10. The machines are IBM xSeries 345, with
4 x 2.8GHz logical Xeon processors, 2GB RAM, and 4 x 36.4GB 10,000RPM
SCSI hard drives in RAID 5EE. They are connected through their e1000
network interfaces by a crossover cable, with MTU for both interfaces
set to 9018.

The system seems to be fine. Initial synchronization went well, failover
works fine, and so far the filesystem has not yet experienced any
corruption. Last night I ran bonnie++, and will find out later in the
day how the system fares. I'm running bonnie++ not as much to test
performance but to test how XFS + DRBD will respond under the load it
puts.

Can those who have tested the XFS + DRBD combination and gotten into
problems share what they did that led to these problems? I'd like to try
to reproduce all these and see how the cluster fares. I will let the
list know, of course.

Thanks a lot in advance.

 --> Jijo

-- 
Federico Sevilla III : jijo.free.net.ph : When we speak of free software
GNU/Linux Specialist : GnuPG 0x93B746BE : we refer to freedom, not price.



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