$380 Micron 3.2TB S630DC SAS SSD & other capacities available

Discussion in 'Great Deals' started by BigDaddy, Dec 29, 2018.

  1. KC8FLB

    KC8FLB New Member

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    Just wanted to update this thread after a sucessful install of two 800GB microns I bought during the frenzy.

    I am using both of the SSD in a unRAID BTRFS cache pool which houses container and VM data as well as provides a temporary write to the server cache, until the data is moved to the slower array.

    I am using a LSI 9300-8i HBA flashed to the latest IT firmware and BIOS.

    I used this amphenol connector:
    New Amphenol 12GB MiniSAS SFF8643 4xSAS SFF8482 Cable RHS36-4819 US-SameDayShip | eBay

    My server is actually housed in a large tower case (original Cosmos case) so i was able to to install the drives with a 120mm fan each by using two of these novel 2.5mm to 5.25in bay adapters which also includes mounting for a 120mm fan:
    5.25" to 3.5" 2.5" SSD HDD Tray Caddy Case Adapter Cooling Fan Mounting Bracket 44276895809 | eBay

    Just a note: these adapters with a 120mm fan attached are ~30% thicker that a normal 5.25 bay, so that you cannot install two in consecutive bays. They also only have provisions for one 2.5mm drive each. My drives never exceeded 87 degrees F even after 52GB write, but it was a slow, slow write due to unRAID parity not drives fault.

    I probably didn't need to go with 12Gb connectivity as my unRAID server will probably never deliver the full speed, but it was a good learning project.
     
    #181
  2. Tiberizzle

    Tiberizzle New Member

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    I keep looking at these and seeing that there are still some in stock then seeing the nearly 7 watts on load figure and remembering why I noped on them.

    That's >50x more than a decent SATA SSD which can do >500MB/sec read and write.

    In a 24x2.5 that would be 160W of additional power consumption over the SATA SSDs on load or like 120W on idle, which would double the idle power consumption of a dual e5-v2 box.
     
    #182
  3. acquacow

    acquacow Active Member

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    Heh, you'd definitely nope on my 25-55W PCIe SSDs under 3GB/sec write workloads then =)
     
    #183
  4. Tiberizzle

    Tiberizzle New Member

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    Quite likely, considering I've benched >8GB/sec aggregate multi-node sequential write throughput across my Ceph cluster of 4 node * 6x OSD of mixed Intel 520 (800mW peak write) and 1500 Pro (200mW peak write), 1x Optane 900P per node shared by all its OSDs as blockdb/WAL (14W peak write, but at least it's only one per node!) :p
     
    #184
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