roland writes: > >SSDs with capacitor-backed write caches > >seem to be fastest. > > how to distinguish them from ssd`s without one? > i never saw this explicitly mentioned in the specs.
They probably don't have one then (or they should fire their entire marketing dept). Capacitors allows the device to function safely with write cache enabled even while ignoring the cache flushes being sent by ZFS. If the device firmware is not setup to ignore the flushes, better make sure that sd.conf is setup to not send them otherwise one looses the benefit. Setting up sd.conf in ZFS Evil tuning guide : http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide#How_to_Tune_Cache_Sync_Handling_Per_Storage_Device -r > -- > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
