Joshua Goodall wrote: > I've been seeing read and write performance pathologies with Linux > ext3 over iSCSI to zvols, especially with small writes. Does running > a journalled filesystem to a zvol turn the block storage into swiss > cheese? I am considering serving ext3 journals (and possibly swap > too) off a raw, hardware-mirrored device. Before I do (and I'll > write up any results) I'd like to know if anyone tried/addressed > this already.
What evidence do you have that it is the ZVOL at fault here rather than say the iSCSI initiator or target or the actually physical storage backing the zpool or the ext3 filesystem ? Or even the network ? What kind of pool config do you have ? What does the network look like ? What does zpool iostat show you when doing the writes ? etc etc -- Darren J Moffat _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
