On Wed, May 21, 2008 at 11:22:27AM -0400, Yaroslav Halchenko wrote: > Hi Beowulfers, > > I had 1 drive failed in the RAID (WD4000YR) so I sent it for replacement > and got back (WD5000YS), so it is of similar series but larger in > capacity. Performance metrics of replacement seems to be at least as > good as of old one. But I still wonder if RAID would digest it nicely > (we use Areca ARC1160) and I don't want to try it hard way (ie use > new one as a spare and wait until raid fails and starts rebuilding). > Areca controller has Capacity Truncation capability so larger size of a > new drive should be (theoretically) ok, but I still wonder what > implications I might encounter. May be someone could share ideas or > experience? > > Thanks in advance!
Hi, They are both SATA-2 (3Gb/s) HDDs. With the replacement drive at 500GB, it should work well for you. The raid controller will ignore that last 100GB. You need to check the firmware version on the replacement drive. Sometimes there are firmware updates that aren't well publicized. That is a common problem. This class of drives can usually be configured to run at either 1.5Gb/s or 3.0Gb/s, with a jumper on the drive. You need to check that. There are other optimizations available in the newer SATA2 implementations you might want to consider. http://en.wikipedia.org/wiki/Serial_ATA is a good place to start learning. Good luck with it. My advice comes without warranty of any kind. YMMV. Thanks, Karen -- Karen Shaeffer Neuralscape, Palo Alto, Ca. 94306 [EMAIL PROTECTED] http://www.neuralscape.com _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
