Hi!
I have the following test setup:
1 x ONE server with two Gbit ethernet cards (one for public and one for
VM VLAN). /srv/cloud is mounted on an RAID10 md array with 4 SATA2
disks. OS: RHEL6.0
2 x KVM node servers with two Gbit ethernet cards each (one for public
and one for VM VLAN). OS: RHEL 6.0
As the NFS performance is not satisfactory for any VMs that have a lot
of IO (MySQL, ...), I was wondering if you have any ideas how to boost
NFS performance? In my case the VMs IOwait was most of the time in the
70 - 90% with 2 - 6 MBytes write transfer rates.
At the moment the NFS clients mount the share with "noatime,nodiratime"
options in fstab. I wouldn't want to enable "async" since its not "safe".
How do you tune your NFS mount so the performance becomes acceptable in
medium to high IO environments?
Thanks!
--
LP,
---------------------------------------
Peter Farič
Sistemski administrator
Tel.: +386 2 613 00 79
Fax : +386 2 613 00 60
Email: peter.fa...@ledinek.com
WWW: http://www.ledinek.com
Ledinek Engineering d.o.o.
Bohovska cesta 19 A
SI-2311 HOČE
Slovenija
---------------------------------------
_______________________________________________
Users mailing list
Users@lists.opennebula.org
http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
