On Tue, Aug 25, 2009 at 12:02:51PM +1000, LEES, Cooper wrote: > Hi Duncan, >=20 > I also do the same with my Mac for timemachine and get the same WOEFUL > performance to my x4500 filer. >=20 > I have mounted ISCSI zvols on a linux machine and it performs as expected > (50 mbytes a second) as apposed to my Mac that goes @ 1mbyte a second. I = do > believe the client for Mac is crap. Would be nice if apple wrote a client > for ISCSI. >=20 > But if anyone has a fix for Mac OS X that would be great to know ! >
I'm getting >30MB/s to/from my 4x1TB drive array, however I see some
v.slow speeds at the beginning. I believe there were a few things that
helped,
# updating to the latest dev release uname -a reports.
- SunOS dendrite 5.11 snv_118 i86pc i386 i86pc
# Enableing the write-back cache. I beleive there's some talk of linux=20
clients doing the wrong thing, but that may be NFS,
- iscsitadm modify admin --fast-write-ack enable
# using the new COMSTAR stack, rather than the old. I think something,
somewhere was getting confused, there seem to be two versions of
instructions around. Having migrated an old set of pools onto this=20
system probably didn't help matters.
- svcs -a | grep -i iscsi
disabled Aug_16 svc:/network/iscsi_initiator:default
disabled Aug_16 svc:/system/iscsitgt:default
online Aug_16 svc:/network/iscsi/initiator:default
online Aug_16 svc:/network/iscsi/target:default
Hope that helps someone, thanks go to the people in #opensolaris on
freenode who helped me get this sorted.
Cheers,
Colin Morey
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