Could you please give info or links to clarify "Sata tunneling protocol
Also have you considered Supermicro's 45 drive in 4U enclosure - The
SC847E26-RJBOD1 ? It's cheap too at around 2000$ and based on LSI backplanes
SGI has a nice and crazy 81(!) 3.5" disks in 4U JBOD enclosure but they refused
to sell it to us without them supplying the disks also.
Anyone aware of a 60 or more disks in 4U enclosure on top of those mentioned in
this message or the data-on? We are trying to build super-high-density-storage
On 13 nov. 2012, at 21:08, Peter Tripp <pe...@psych.columbia.edu> wrote:
> Hi folks,
> I'm in the market for a couple of JBODs. Up until now I've been relatively
> lucky with finding hardware that plays very nicely with ZFS. All my gear
> currently in production uses LSI SAS controllers (3801e, 9200-16e, 9211-8i)
> with backplanes powered by LSI SAS expanders (Sun x4250, Sun J4400, etc).
> But I'm in the market for SAS2 JBODs to support a large number 3.5inch SAS
> disks (60+ 3TB disks to start).
> I'm aware of potential issues with SATA drives/interposers and the whole SATA
> Tunneling Protocol (STP) nonsense, so I'm going to stick to a pure SAS setup.
> Also, since I've had trouble with in the past with daisy-chained SAS JBODs
> I'll probably stick with one SAS 4x cable (SFF8088) per JBOD and unless there
> were a compelling reason for multi-pathing I'd probably stick to a single
> controller. If possible I'd rather buy 20 packs of enterprise SAS disks with
> 5yr warranties and have the JBOD come with empty trays, but would also
> consider buying disks with the JBOD if the price wasn't too crazy.
> Does anyone have any positive/negative experiences with any of the following
> with ZFS:
> * SuperMicro SC826E16-R500LPB (2U 12 drives, dual 500w PS, single LSI SAS2X28
> * SuperMicro SC846BE16-R920B (4U 24 drives, dual 920w PS, single unknown
> * Dell PowerVault MD 1200 (2U 12 drives, dual 600w PS, dual unknown expanders)
> * HP StorageWorks D2600 (2U 12 drives, dual 460w PS, single/dual unknown
> I'm leaning towards the SuperMicro stuff, but every time I order SuperMicro
> gear there's always something missing or wrongly configured so some of the
> cost savings gets eaten up with my time figuring out where things went wrong
> and returning/ordering replacements. The Dell/HP gear I'm sure is fine, but
> buying disks from them gets pricey quick. The last time I looked they charged
> $150 extra per disk for when the only added value was a proprietary sled a
> shorter warranty (3yr vs 5yr).
> I'm open to other JBOD vendors too, was just really just curious what folks
> were using when they needed more than two dozen 3.5" SAS disks for use with
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