Hi,
Just for closing this topic. Two issues have been found which caused the slow
write performance on our Sun Storage 7410 with RAIDZ2:
(1) A Opensolaris bug when NFS mount option is set to wsize=32768. Reducing to
wsize=16384 resulted in a performance gain of about factor 2.
http://bugs.ope
Hi Bob,
> Striping across two large raidz2s is not ideal for
> multi-user use.
> You are getting the equivalent of two disks worth of
> IOPS, which does
> not go very far. More smaller raidz vdevs or mirror
> vdevs would be
> better. Also, make sure that you have plenty of RAM
> installed.
Th
Hi,
The system already has a SSD (ATASTECZeusIOPS018GBytesSTMD905C) as ZFS log
device.
NFS writes from only one host are not the problem. Even with may small files it
is almost as fast as a Netapp. Problem arises when doing the same parallel from
n hosts. E.g. the same write from 10 hosts
Hi,
We have a Sun Storage 7410 with the latest release (which is based upon
opensolaris). The system uses a hybrid storage pool (23 1TB SATA disks in
RAIDZ2 and 1 18GB SSD as log device). The ZFS volumes are exported with NFSv3
over TCP. NFS mount options are:
rw,bg,vers=3,proto=tcp,hard,intr,
