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I'm assembling a 88 TB ZFS NAS with 128 GB RAM. The data that is going onto it will be write-once-only binary files, organized on average as 20+ GB files, and will thereafter be subject to multiuser (<10 over LAN) random access to retrieve multiple files. I estimate the frequent working set will be around 2 TB.

What would be recommended for my boot, ZIL and L2ARC disks? I got some ideas from Best disk requirements for a ZFS setup excluding actual shared storage, and finalized on this:

  1. boot
    • Intel 335 80 GB, 2 disks (mirrored), >0.5 times size of physical memory for swap volume, and to reduce power consumption
  2. ZIL
    • OCZ Deneva 2 R Series SLC 50 GB, for supercap, and for SLC write endurance, OR
    • Intel 320 60 GB, 2 disks (mirrored), for supercap
  3. L2ARC:
    • Samsung 840 Pro Series 512 GB, 2 disks (striped)

Is there anything absolutely wrong about this setup that I can improve on? Thanks!

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closed as primarily opinion-based by gronostaj, mpy, KronoS, Darth Android, Tog Aug 13 '13 at 16:54

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise.If this question can be reworded to fit the rules in the help center, please edit the question.

    
A very interesting question, but I am afraid some of the answers might be opinion based. –  Hennes Aug 13 '13 at 15:37
    
Right, I'll try to rephrase the question a bit if it's attracting the wrong kind of answers, but I hope you guys give this a chance! –  elleciel Aug 13 '13 at 15:50

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