Along with the release of the SM951 PCIe SSD, Samsung had several new enterprise SSDs on display at the show. The PM863 and SM863 are SATA 6Gbps drives and pack a new Mercury controller (unfortunately I don't have any specifics at this point), but what's intriguing is the available capacities. The PM863 with 32-layer 128Gbit TLC NAND comes in up to 3.84TB capacity in 2.5" form factor, whereas the SM863 with 32-layer 86Gbit MLC NAND offers a half of that (i.e. 1.92TB). Sustained 4KB random write performance is a decent 15K IOPS for the PM863 and 20K for the SM863, but there is no word about endurance at this point.

In addition to SATA drives, Samsung showed off three new SAS drives with new REX controller and 3D V-NAND. Capacities are once again impressive with the PM1633 packing up to 3.84TB in 2.5" and thanks to the SAS 12Gbps interface sequential performance is doubled compared to the SATA 6Gbps drives. 

And lastly, Samsung also displayed the enterprise version of the SM951 i.e. the SM953. The change compared to the SM951 is M.2 22110 form factor to fit the capacitor on the PCB for power-loss protection, but otherwise the SM953 shares the same core hardware. The firmware is obviously enterprise-oriented with focus on sustained figures, hence the slightly lower performance specs. 

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  • bsd228 - Wednesday, January 21, 2015 - link

    zfs is software raid + file system. spell out the acronym - redundant array of inexpensive disks. Still true. Now hadoop or gluster - that's a different game. Not expecting it to take over the home space, but I have thousands of such servers at my company.
  • cottington - Monday, January 26, 2015 - link

    When you say "We've already seen hardware RAID give way to software RAID" can you give some examples? I'm not questioning your assertion, just genuinely interested. I am aware of Storage Spaces. I wonder if you have you had experience with other software RAID solutions in small to medium Windows environments?
  • suwandi1933 - Saturday, January 17, 2015 - link

    yes yes so the best this produc .

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