* [linux-lvm] LVM2 - Crash
@ 2004-10-14 8:27 Vincent Carpier - Comite Reseaux des Universites
2004-10-14 18:18 ` [linux-lvm] Snapshot Support Liam Helmer
0 siblings, 1 reply; 2+ messages in thread
From: Vincent Carpier - Comite Reseaux des Universites @ 2004-10-14 8:27 UTC (permalink / raw)
To: linux-lvm
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* [linux-lvm] Snapshot Support
2004-10-14 8:27 [linux-lvm] LVM2 - Crash Vincent Carpier - Comite Reseaux des Universites
@ 2004-10-14 18:18 ` Liam Helmer
0 siblings, 0 replies; 2+ messages in thread
From: Liam Helmer @ 2004-10-14 18:18 UTC (permalink / raw)
To: LVM general discussion and development
I'm seeing a lot of messages about snapshots sort of working... I should
relay my experience here.
I did some testing with Snapshots in 2.6.8.1, and came up with variable
results. Here's some stuff I found:
reiserfs works badly with read/write snapshots: writing to both the main
filesystem and the snapshot hangs the filesystems permanently (even
after writing stops), and stops LVM from being able to assign more
snapshots/space/etc until a full reboot.
ext3 works OK, albeheit with a definite CPU hit. I tried low-level loads
and it didn't crash, which was certainly better than with reiserfs.
I didn't try a whole lot of other filesystems though. Generally, it
didn't seem quite stable enough, so I decided to wait a few iterations
before working with it seriously. Does anyone know the status of work in
this area? Or if there's some more patches waiting in -mm?
Cheers,
Liam
--
StrongBox Linux
http://www.strongboxlinux.com
"Making Security Friendly"
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