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Recent content by msitpro

  1. M

    Increase iSCSI Performance over 1 GB Ethernet?

    To clarify, our setup is set to use mpio in 'lowest queue' mode. This is configured on a hyper-v host. I have read in the past about esxi mpio and changing the queue per path to achieve better low qd throughput....
  2. M

    Increase iSCSI Performance over 1 GB Ethernet?

    The other question looking at current write speeds would be, is there any write caching going on at the software raid or iscsi target level? Looks like there may not be looking at the throughput you have.
  3. M

    Increase iSCSI Performance over 1 GB Ethernet?

    MPIO will achieve what you want and is very easy to set up. I have an openindiana SAN box at work with MPIO across 2 GbE to a hyper-v host and get up to 230MBps in-vm on a single file transfer/benchmark. All you need is 2+ NICs in each end, configure each with its own IP, then set up each...
  4. M

    big zfs ssd problem - zil/l2arc max 2500 iops

    THIS. Unfortunately not many people know this. This is why I really wish review sites would test QD1 IOPS on SSDs more frequently. :(
  5. M

    My 256 GB 840 pro results. Checking if this is normal

    Are you using marvell sata ports? I think it says mvs something......
  6. M

    Need new SAS 2.5 Drives for some servers

    If you have Dell servers then I would advise buying Dell branded and firmware'd drives..... as painful as that is.
  7. M

    All SSD ZFS Pools

    Space between | and mdb?? I think I had that problem with some commands.
  8. M

    Liteon SSD?

    It's basically a Plextor M3S Not sure why the Dell spec says 3Gbps as the M3S is a 6Gbps drive....
  9. M

    All SSD ZFS Pools

    What benchmark(s) are you running? 128K+ ? 4K ? Random/Sequential? I suspect it's a Sync Writes problem as well, which limits you to the speed of your ZIL with a Queue Depth of one from looking at others' performance figures..... Have you tested without the log device(s) ? As others have...
  10. M

    ZeusRAM bottleneck

    Yes, for a queue depth of 1, which I think the SLOG is fixed to.....could be wrong. Any Nexenta employees out there available to comment?
  11. M

    Raid 1 Performance on HP ProLiant DL320 G6

    If they add 15k SAS drives they need to add a P212 or higher as the B110i is SATA only, so there is a considerable cost anyway. Depending on what's running on the box and the required performance, latency, queue depth kept in check etc I would be inclined to add a P410/512 FBWC first with the...
  12. M

    Raid 1 Performance on HP ProLiant DL320 G6

    That's normal for that config. You need battery backed write cache on the controller if you have a P212 or P410. If you have just the onboard B110i then you will need to purchase the controller as well. OR you could turn on drive write caches through HP Array Configuration Utility, which is...
  13. M

    NAS Advice

    I think there may be plain HBA firmware for that card. I think I read in another thread it's available from Dell's site but isn't obvious what it is.....
  14. M

    12 new consumer drives from Toshiba

    So who DO you send a failed drive to? :eek:
  15. M

    Which 3TB drive for HW-RAID (HP P410)

    Safest should be WD Red or the Seagate CS in regards to falling out of the array. I have run Hitachi Desktstar 7K2000 / 7K3000 RAID 5 on a P410 for 2.5 years without any problems though. The CS drives will be closest to what HP would certify for the controller (but normally with their own...
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