On Apr 7, 2012, at 4:15 PM, Jim Klimov wrote: >> I'm not familiar with the J4400 at all, but isn't Sun/Oracle using -like >> NetAPP- >> Interposer cards and thus handling the SATA drives more or less like SAS >> ones? > > Out of curiosity, are there any third-party hardware vendors > that make server/storage chassis (Supermicro et al) who make > SATA backplanes with the SAS interposers soldered on?
None AFIAK. > > Would that make sense, or be cheaper/more reliable than > having extra junk between the disk and backplane connectors? > (if I correctly understand what the talk is about? ;) It would not be more reliable or cheaper. > ZFS was very attractive at first because of the claim that > "it returns Inexpensive into raId" and can do miracles > with SATA disks. Reality has shown to many of us that > many SATA implementations existing in the wild should > be avoided... so we're back to good vendors' higher end > expensive SATAs or better yet SAS drives. Not inexpensive > anymore again :( You can't get past the age-old idiom: you get what you pay for. In some cases today, depending on vendor, the cost of SATA + interposer is the same as SAS. -- richard -- DTrace Conference, April 3, 2012, http://wiki.smartos.org/display/DOC/dtrace.conf ZFS Performance and Training richard.ell...@richardelling.com +1-760-896-4422
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