stable/8-amd64 on ZFS as a vSphere backend (fwd)

[Dmitry Morozovsky]

[After a bit of thoughts, I decided that -fs@ would be more appropriate place 
for this, sorry for extra noise]

Dear colleagues,

any particular hints to tune FreeBSD NFS server for efficient work as a VMware 
vSphere backend?

For now, I set up 16G amd64 with ZFSv28, 4k recordsize and no other particular 
tuning, roundrobin lagg on 2 ems, mtu 9000. There are 4 WD RE3 1T disks as 
AHCI, on raid10 ZFS config. 

However, performance seems to be far from optimal (more deep testing is due, 
but at least average latency is too far, more than 100 ms). 

Local tests from zvol's (yes, that's not directly comparable but still) provide 
more than 500 MB/s on single/dual thread.

Thanks in advance!

-- 
Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
[ FreeBSD committer:                                 marck at FreeBSD.org ]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck at rinet.ru ***
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