Client NAS Build

Discussion in 'DIY Server and Workstation Builds' started by sboesch, Dec 3, 2019.

  1. sboesch

    sboesch Member

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    A client of mine exceeded the capacity of his Synology 5bay and 8bay shelves. He came to me asking for a solution. His current Synology setup is at 80% capacity, this crazy guy bought 24x 16TB Iron Wolf drives and asked me to build a FreeNas solution around them.

    His prerequisite was that I keep it under $2500.00 (Minus Disks) Needless to say, challenge accepted.

    Case


    NORCO RPC-4224 4U
    Or
    Chenbro RM23524M2

    Motherboard


    ASRock Rack X470D4U

    Processor

    AMD Ryzen 7 2700X Processor with Wraith Prism LED Cooler

    Power Supply

    CORSAIR HX1000
    or
    Yet undetermined server power supply

    Memory

    4x Crucial 16GB DDR4-2666 ECC UDIMM

    Power Splitters

    6x Manhattan, 6" SATA 15-Pin Male to Dual 4-Pin Molex Female Y Splitter, 308977


    Host Bus Adapters (Disk Controllers)

    LSI Broadcom SAS 9300-8i
    LSI Broadcom SAS 9305-16I

    SAS Cables (Disk Cables)

    6x CableCreation Internal Mini SAS HD Cable, 1.6FT Mini SAS SFF-8643 to Mini SAS 36Pin SFF-8087 Cable, Mini SAS 36Pin to SFF-8643 Cable, 0.5M

    M.2 Boot Drive

    ADATA SU800 256GB M.2 2280 SATA 3D NAND Internal SSD


    Networking

    Chelsio 110-1106-30-A0 S320E-CR Dual Port 10gbe PCI-e Standard Profile Adapter
     
    #1
  2. IamSpartacus

    IamSpartacus Well-Known Member

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    If this is for a client I'd recommend a higher quality chassis/backplane than the ones you selected.
     
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  3. mmo

    mmo Active Member

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    #3
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  4. sboesch

    sboesch Member

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    Any suggestions, I do have to stay in budget, a used chassis is not an option.
     
    #4
  5. sboesch

    sboesch Member

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    #5
  6. BeTeP

    BeTeP Active Member

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    A brand new CSE-846BA-R920B is $1350 shipped. It comes with 2 Platinum 980W PSUs.
     
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  7. sboesch

    sboesch Member

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    That's something I would do, but it crushes the $2500 budget.
     
    #7
  8. BeTeP

    BeTeP Active Member

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    #8
    Last edited: Dec 3, 2019
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  9. Rand__

    Rand__ Well-Known Member

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    I'd second/third (or where ever we are) a SM Chassis. You probably could get away with a SAS3 EL backplane alleviating the need to get lots of HBAs
    (4800 MB/s for 4 SAS lanes can drive a lot of SATA drives
    -Mirror => 24 drives in read=200MB/Read per disk max
    -Raid Z2 (eg 3 x 8 (6+2) drives gives max 18 data drives =267MB/s per disk)
    but I see those might be out of budget new;)

    But honestly, it looks like your moving too fast.
    Have you identified what his requirements are? (Speed, concurrent users, backup capabilities/requirements [significantly more data potentially?],) ...
    Is replacing the Syno the only goal or have there been issues with that box that the new one should address? Any plugins /virtualization on the old box that should run on the new one?
     
    #9
  10. sboesch

    sboesch Member

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    This is home storage device, the dude is a complete data hoarder, I've never seen a TV and movie collection on NAS like this guy has. 10GB is plenty fast for connectivity, he'll rarely saturate it. As for datasets, I'll probably do a two 10 vdev raidz1x2 pools and some hot spares. I have found that raidz1x2 outperforms raidz2 by a good margin, and you use 72% versus 69% of your storage. I am going to have another chat with him about changing chassis, so we will see.
     
    #10
  11. IamSpartacus

    IamSpartacus Well-Known Member

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    If this is a storage server mainly for media why even go ZFS? Why not use a non-striped array setup such as Unraid or SnapRAID+MergefFS?
     
    #11
  12. sboesch

    sboesch Member

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    He likes FreeNAS, suggested Unraid and he poopoo'd it.
     
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  13. Rand__

    Rand__ Well-Known Member

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    It sounds as if even a SAS2 EL backplane would be fine - for the price of a new box you can get a nice older SM chassis, replace all moving parts and get spare's to boot.
     
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  14. IamSpartacus

    IamSpartacus Well-Known Member

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    384TB of RAW storage and only 64GB of RAM? I haven't used FreeNAS in a few years but is the 1GB of RAM per 1TB of usable storage space no longer their recommendation?
     
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  15. sboesch

    sboesch Member

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    1GB to 1TB parity would be pretty overkill, the arc is only caching used or frequently used data, I doubt he's going to rewatch ARC value of movies and tv shows, this dude has 24 spindles, that's oodles of IO for hoarding his shows.
     
    #15
  16. Rand__

    Rand__ Well-Known Member

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    It never was a *hard* requirement - it always depends on the use case (nr of files in arc, nr of users etc).
    O/c more Ram means more cache means faster access, but this does not seem to be a prerequisite here...
     
    #16
  17. vangoose

    vangoose Member

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    I say no to raidz1 for 16TB disk, especially 10 disk vdev.

    Personally I would do 11 disk raidz3 vdev * 2 + 2 global hot spare.
     
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  18. BeTeP

    BeTeP Active Member

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    BPN-SAS3-846EL1 will set you back ~$400. But I would rather get the BPN-SAS-846A (nominally it's SAS1, but it's passthrough - so it works for SAS3 as well) for $81 shipped instead. Or you can always get one from @BLinux at 3x the price.
     
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  19. Rand__

    Rand__ Well-Known Member

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    well thats 400 + 1 HBA vs 81 + 3 HBA's (or two if he gets a 16 or one for a -24) ;)
    Depends on free slots on the board too - the one he picked only has 2 x8 capable slots...
     
    #19
  20. T_Minus

    T_Minus Moderator

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    This.

    Don't do RZ1 with that many disks, or 16TB disk, don't do RZ1 at all for the most :D my 02
     
    #20
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