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Recent content by vFX

  1. V

    wipe partition on software raid?

    thank you ;)
  2. V

    wipe partition on software raid?

    I just want to do this in the "clean" way. I'll try to explain better: if I run 'umount /my/raid/mountpoint' and then I use md0 as iSCSI backstore (which should work, I have not tried yet) what happen if I run 'mount /dev/md0 /my/raid/mountpoint' after some time? So my question is: how can I...
  3. V

    wipe partition on software raid?

    I have a software raid 1 root@storage:~# mdadm --detail /dev/md0 /dev/md0: Version : 1.2 Creation Time : Sun May 3 11:51:50 2015 Raid Level : raid1 Array Size : 468718592 (447.00 GiB 479.97 GB) Used Dev Size : 468718592 (447.00 GiB 479.97 GB) Raid Devices : 2...
  4. V

    [H]ard Forum Storage Showoff Thread

    you are right, sorry specs (from top) Switch - Cisco SG300-10 (front) - Cisco SG100-16 (back) SAN / Storage (always on) - SuperMicro SuperChassis SC733TQ-465B - Supermicro X8DTE-f + 1xE5620 2.40@2.00 + 24GB ECC Reg DDR3 1333 - LSI 9240 --> 2x Toshiba 2.5" 7200rpm 500GB RAID1 --> OS...
  5. V

    [H]ard Forum Storage Showoff Thread

    edit (error)
  6. V

    [H]ard Forum Storage Showoff Thread

    :D
  7. V

    ssd/hdd raid 5?

    what you mean with "RAID1 with two SSDs (no TRIM)" ? TRIM is disabled when two SSDs are in RAID1 config?
  8. V

    Horrible disk performance under ESXi

    this is very strange what's the speed of a scp transfer? (single ~1GB file) do you have a controller or HBA for some tests?
  9. V

    Infiniband is making me crazy!

    thank you for the explanation, it's very helpful have this stuff explained outside from the technical documents. my plan is esxi1+opensm (hca0,ib0) <------------------------> (hca0,ib0) storage esxi2+opensm (hca0,ib0) <------------------------> (hca0,ib1) storage so I should have no problems...
  10. V

    driver installation problem

    yes I'm using IPoIB, so I don't need the vmware drivers? just the MLNX OFED (and optionally opensm if it's not running on the other node)
  11. V

    Infiniband is making me crazy!

    to be completely honest I have still some problems to understand how opensm works. I mean, the theory is "easy and obvious" but in practice I'm not sure how opensm works and what exactly I have configured. maybe it's normal and I have just to practice more.. about the mtu I was pretty...
  12. V

    Infiniband is making me crazy!

    good point, at some point I thought the same thing and checked that opensm on the storage node was not running but the problem was something else, as said earlier
  13. V

    Infiniband is making me crazy!

    HYPERV1 is the name of my VMware vSphere ESXi host, it's not a Microsoft HyperV server :D the MTU mentioned in the devinfo output is 4096 but in ifconfig ib1 is 2044. since I'm running IPoIB and I'm a ib newbie I'm not sure what exactly the 4096 in devinfo means, I suppose this is for...
  14. V

    driver installation problem

    Thank you dasaint, I have solved using older mellanox drivers but I will try on a test node as you suggested. Anyway the inbox drivers needs to be installed anyway? I install them after the mellanox? If you have time and want to take a look there: http://hardforum.com/showthread.php?t=1846599...
  15. V

    Infiniband is making me crazy!

    I have this "simple" setup Node 1 "STORAGE" OS: Ubuntu 14.04 (server) IB: Mellanox ConnectX 2 Software installed: Mellanox OFED 2.3-2.0.0 (ubuntu14.04-x86_64) Node 2 "HYPERV1" OS: ESXi 5.5 IB: Mellanox ConnectX 2 Software installed: MLNX-OFED-ESX-1.8.2.0, mlx4_en-mlnx-1.6.1.2-471530...
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