On 25/10/16 06:33, Fred Liu wrote:
> 3): KVM improvement -- ext4 corruption warning disappears in SL6.7.
(Sending a direct email too because the topic is old and Fred could not
notice this email. Please reply to the list).
Fred, would you mind to provide more details about this?. I don't see
any reference in the changelog and I am experiencing heavy KVM virtual
disks corruptions when the ZVOL is configured as "sync=disabled". I know
that that configuration is not safe if the host crashes, but it is
supposed to be OK (and fast) if your host is stable. I was transferring
several terabytes for a KVM guest with no VIRTIO support and the
performance difference is huge (like 10x) and if I have a crash during
the process, I can just delete and repeat. But what I was not ready to
see were ZFS corruptions (inside the guest doing the "zfs receive") and,
after a week of testing, I linked it to "sync=disable" and this looks
like a bug.
Since you are commenting something about filesystem corruptions in KVM
guests, would you mind to provide more info?
--
Jesús Cea Avión _/_/ _/_/_/_/_/_/
j...@jcea.es - http://www.jcea.es/ _/_/_/_/ _/_/_/_/ _/_/
Twitter: @jcea_/_/_/_/ _/_/_/_/_/
jabber / xmpp:j...@jabber.org _/_/ _/_/_/_/ _/_/ _/_/
"Things are not so easy" _/_/ _/_/_/_/ _/_/_/_/ _/_/
"My name is Dump, Core Dump" _/_/_/_/_/_/ _/_/ _/_/
"El amor es poner tu felicidad en la felicidad de otro" - Leibniz
signature.asc
Description: OpenPGP digital signature
---
smartos-discuss
Archives: https://www.listbox.com/member/archive/184463/=now
RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00
Modify Your Subscription:
https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb
Powered by Listbox: http://www.listbox.com
