Hi,
we are selling Linux file servers and we wanted to use XFS. Our
internal tests passed OK but when we installed first server at
customer and migrated data an error occured (usually after copying
60-100 GB). In /var/log/messages we saw this messages:
One of the developers better comment on those messages.
I also think so thats why I post my message here.
We tried migrating 160 GB of data using "cp -a" (over NFS), scp and
rsync from old server using RH7.0 (ext2) - all resulted in this.
The system is running software RAID5 (10x60GB), 1 GHz Celeron, 128 MB
RAM, standard RH7.3 with SGI XFS modified installation CD.
When we rebooted system everything seems OK (nothing lost) but after
copying few more MB the same error occurs.
We have built up 2 VERY same machines from same system image and both
behave the very same so I think that it's some software failure.
It sounds like it. Did you build this filesystem with any special mkfs
options?
What IDE controllers are you using? Did you use the 2.4.18 kernel that
came on the installer disk or is this a selfcompiled version or even a
CVS checkout?
I used default 2.4.18-4-XFS-1.1 and also custom build (same version) -
no difference.
I have stress tested system with doing lot of "dd if=/dev/md0
of=/raid/tmp bs=10MB count=100" and recursive directories (about 50
levels deep) and nothing similar occured. Only when copying data over
network from the old system.
Weird. I frequently have to copy large amounts of data over the
network and it works fine so I suspect that something in your
filesystem is not right and causing it to fail again as soon as you
try to copy to it again.
Now I remember I had also tried to do this "dd" over NFS between the two
same machines also whithout any corruption. Very strange.
Can you check/repair the filesystem and see if it appears again?
I can - it does the same but sooner (not after copying tens of GB but
after copying GBs). As it is production system (from which I'm copying)
my tests are very limited.
--
S pozdravem,
Libor Vanek
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