On Wed, Feb 03, 2010 at 03:02:21PM -0800, Brandon High wrote: > Another solution, for a true DIY x4500: BackBlaze has schematics for > the 45 drive chassis that they designed available on their website. > http://blog.backblaze.com/2009/09/01/petabytes-on-a-budget-how-to-build-cheap-cloud-storage/ > > Someone brought it up on the list a few months ago (which is how I > know about it) and there was some interesting discussion at that time.
IIRC the consensus was that the vibration dampening was inadequate and the interfaces oversubscribed and the disks being not nearline too unreliable, but I might be misremembering. I'm still happy with my 16x WD RE4 drives (linux mdraid RAID 10, CentOS, Oracle, no zfs). Supermicro does 36x drive chassis now http://www.supermicro.com/products/chassis/4U/?chs=847 so budget DIY for zfs is about 72 TByte raw storage with 2 TByte nearline SATA drives. I've had trouble finding internal 2x 2.5" in one 3.5" SSD mounts from Supermicro for hybrid zfs, but no doubt one could improvise something from the usual ricer supplies. On smaller scale http://www.supermicro.com/products/chassis/2U/?chs=216 works well with 2.5" Intel SSDs and VelociRaptors. I hope to be able to use one for a hybrid zfs iSCSI target for VMWare, probably with 10 GBit Ethernet. > There's no way I would use something like this for most installs, but > there is definitely some use. Now that opensolaris supports sata pmp, > you could use a similar chassis for a zfs pool. -- Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
