hgst 4u60 as SSD JBOD

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Rand__

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Mar 6, 2014
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I was looking for a SAS3 SSD Jbod and prices are uncomfortably high for either full JBODs or even Supermicro SAS3-EL2 backplanes...

So I was looking around and found a 4U60 for around 500 bucks...
O/c using SAS3 SSDs will exceed the bandwith pretty quickly; the manual states 12 drives ... for a bunch of S3700's that might look better, with a third of the datatrate that would be 36 drives...

Has anyone with this enclosure tried the Micron SSDs from last eoy sale perchance? I read the big thread and most drives seem to run fine (potentially on older firmware).
 

Rand__

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The one i am looking at is a g1 with caddies.
Official statement (manual) is only supported drives, but some ppl reported good compatibility with earlier firmwares.

Paging @Rahvin9999, @Gene, @CyberSkulls, @nephri ,@denywinarto

Sorry for the mass-shout-out but does any of you guys run non hgst/wd drivss/ssd fine? With which fw? Thanks
 
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Rand__

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Thanks :)
I am sure its a genuine 4U60; leftover from the original sale in 2016, still with warranty.

Edit: and just to be sure, if used as dual homed system on 2 boxes only one uplink (4 lanes of SAS3) can be used, right?

Edit2: I see its advertised as 2x2x4 lanes but I don't see how that is done if one QSFP+ adaper is for IN (daisy chaining) and one for out (host-attach) per IOM? O/c I have seen QSFP+->4x SAS3 EXT (SFF8644) but not sure those make sense/work here
 
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i386

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I see its advertised as 2x2x4 lanes but I don't see how that is done if one QSFP+ adaper is for IN (daisy chaining) and one for out (host-attach) per IOM?
I think that's just the number of total sas lanes:
2 IO Modules x 2 QSFP14 Ports x 4 SAS ports/QSFP14 port
 

Rand__

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So is the OUT port usable for attaching to a host to get 8 uplink lanes per IOM? :)
 

denywinarto

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Aug 11, 2016
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The one i am looking at is a g1 with caddies.
Official statement (manual) is only supported drives, but some ppl reported good compatibility with earlier firmwares.

Paging @Rahvin9999, @Gene, @CyberSkulls, @nephri ,@denywinarto

Sorry for the mass-shout-out but does any of you guys run non hgst/wd drivss/ssd fine? With which fw? Thanks
Sorry just saw this, im running half dozens of wd hdd on my rack, shouldnt be an issue, not sure about ssd though
 

ari2asem

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Dec 26, 2018
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So is the OUT port usable for attaching to a host to get 8 uplink lanes per IOM? :)
no, OUT port is daisy chaining. not for multilane connecting to the host. OUT is usung qfsp+ to qfsp+ cable (sff-8436 to sff-8436).
you can use qsfp+ (sff-8436) -->> 1 sff-8644 or 1 sff-8088. but you always will have 6gbps speeds between hgst-unit and the host, because io-module of hgst gen1 is 6gbps.

gen2 has 12gbps io-module, but doesn't spind down the fans. so gen2 is much louder than gen1

my own unit gen1 supports seagate sata3 (600mbps) hdd. when i have my serial cable, i can connect to the host to see the firmware.

take a look at this discussion

https://forums.servethehome.com/index.php?threads/wtb-60-bay-jbod.23958/
 
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Rand__

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Yes i have seen that, thanks. Still think it should be 12g though as per my screenshot of the manual