On Thu, Apr 14, 2011 at 08:59:49AM -0500, Eric Sandeen wrote: > > >> What kind of SSD is it? > > > > OCZ Vertex 2 with firmware 1.25 (this is not the latest version, but I > > did not have too much courage to update it :)) > > Ok. We (the ext4 list) had a report a year ago or so where someone had > really debugged some odd behavior with one ssd and its firmware, but not this > one :) > > So not the same thing exactly, at least. > > > > > Do the barriers are somehow dependent on the hardware? Maybe I need to > > look in the SSD documentation to find out if proper commands are > > supported? > > I don't think you'll find that sort of thing; it's a question of implementing > the spec properly, really. All I meant is that it is -possible- for hardware > to be broken or noncompliant, so it's -possible- that that's what you're > seeing. I'm NOT saying that the OCZ-VERTEX2 -is- broken, just musing that > the hardware needs to exhibit proper behavior as much as the application > needs to issue the right data integrity syscalls. :) >
I remember reading on the ZFS list that the consumer Vertex2 models do not have a battery backup (or a supercapasitor) to flush the internal cache in the case of power loss. So they'll corrupt the data in the case of power loss.. -- Pasi -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
