Wido den Hollander created CLOUDSTACK-3776:
----------------------------------------------
Summary: System VMs should mount their filesystem with noatime and
sync
Key: CLOUDSTACK-3776
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-3776
Project: CloudStack
Issue Type: Improvement
Security Level: Public (Anyone can view this level - this is the default.)
Components: SystemVM
Affects Versions: 4.1.0
Reporter: Wido den Hollander
Fix For: 4.2.0
Currently the System VMs mount their filesystem with the default mount options,
which is rw,async.
To improve their stability I recommend that we mount their root filesystem
with: rw,sync,noatime
This will bring their I/O performance down by a bit, but that doesn't matter
that much. It will however make the FS more robust after a hypervisor crash.
Noatime is just to prevent writes on reads and will improve performance by a
fraction.
I have seen a lot of ext3 filesystems go corrupt inside SSVMs under KVM and
rebuilding them can take some time.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
