Magnus wrote:
On 6/10/11 3:56 PM, Gabriele Bulfon wrote:
Thanx for the reply ;)
I read somewhere that NFS is much slower than having an iscsi device.
Somewherelse they said the contrary....
I think a lot of it can do with the clients being used. But in my
experience here, zfs backed iscsi targets are on-par with NFS on read
performance, but lag badly on write performance. NFS clients perform
pretty well in both read & write operations.
ESX seems to like its vmdk's on NFS more than iSCSI here.
Agreed. I have seen ESXi get finicky if it thinks the iSCSI target is
offline. One gotcha: it depends if the iSCSI storage is a file or a
zvol. Performance of the former seemed to be about that of NFS -
performance of the latter sucked (I was seeing about a 50% degradation...)
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