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  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...
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    [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 [email protected] + 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

    ssd/hdd raid 5?

    what you mean with "RAID1 with two SSDs (no TRIM)" ? TRIM is disabled when two SSDs are in RAID1 config?
  7. 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?
  8. 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...
  9. 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)
  10. 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...
  11. 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
  12. 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...
  13. 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...
  14. 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...
  15. V

    driver installation problem

    Hi, I'm trying to install the latest Mellanox OFED drivers on a ESXi 5.5 host but I get a dependency error /tmp # esxcli software vib install -d /tmp/MLNX-OFED-ESX-1.8.2.4-10EM-500.0.0.472560.zip --no-sig-check [DependencyError] VIB...
  16. V

    Which one of these is best for a RAID5 array?

    4x WD RE4 1TB - RAID5 - 3Ware / LSI 9650SE-8LPML | 256MB DDR2 | w/o BBU - Adaptec 6805E | 128MB (DDR2?) | w/o BBU - Adaptec 5405 | 256MB DDR2 | w/ BBU - LSI 9240-8i | w/o cache | w/o BBU The server will be under UPS so the BBU is not so important.
  17. V

    What do you do to preserve your SSD performance on linux?

    nothing? noatime,discard in fstab? manual/scheduled fstrim command? something else?
  18. V

    Suggested appliance / OS as SAN+NAS solution?

    currently I'm running 2x WD RED 3TB (RAID1) for my NAS data 2x WD RE4 1TB (RAID1) for VM (exported via NFS and iSCSI) As you can imagine I have some performance limits because of the limited IOPS/Seq. speed I have from a single WD RE4. Moreover the RS814 does not support VAAI, SSD cache and...
  19. V

    Suggested appliance / OS as SAN+NAS solution?

    is your power supply haswell ready?
  20. V

    Suggested appliance / OS as SAN+NAS solution?

    I'm replacing my Synology RS814 with this more powerful and flexible solution - Supermicro X10SLH-F - Core i3-4130T - 16GB DDR3 1333 ECC - 4x WD RE4 1TB (RAID10) (ore more..) - 2x Crucial MX100 512GB (RAID1) - Mellanox ConnectX2 IB (40Gigabit) The Hard Drives will store all my "NAS"...
  21. V

    Can I use vsphere client to create VMs in ESXi 5.5

    you can both create VMs (version 8) and manage VMs (version 9 - 10) created from the web interface.
  22. V

    vmware (shared) storage for home lab esxi cluster

    thank you all for the suggestions. bds1904 thank you for spending some time for a complete config. Update: I have got 3x ConnectX-2 IB/VPI (40Gbit) + cables and I have also another server with very similar hardware of the esxi nodes, the only difference is the CPU which is a nehalem E5530...
  23. V

    vmware (shared) storage for home lab esxi cluster

    Hi, In my homelab I have a 2-node esxi 5.5 cluster (E5620 + 24GB RAM each). The shared storage is provided by a Synolgy RS814 (NFS) with 4x WD RE4 1TB (Raid10). Link aggregation bound on the NAS, LAG group on the Cisco SG300 and IP Route based balancing on the vSwitch. Everything works...
  24. V

    Opteron motherboard compatibility

    ok I found that the C32 and AM3+ are completely different sockets, so no way. you can close :(
  25. V

    Opteron motherboard compatibility

    Hi, I'm trying to understand if I can run my Opteron 3320 EE on the Supermicro H8SCM-F motherboard. The Supermicro specs on the website only says this means the 3300 serie is not supported or since the 4000 is supported "of course" the 3300 it is?
  26. V

    consumer SSD for home-esxi-lab?

    I'm looking for a SSD to use in my home ESXi server. I plan to store on it the vCenter appliance and a couple of VMs. 250/256GB should be enough. Suggestions? Could the Crucial MX100 be ok?
  27. V

    GPU Passthrough and Power

    I don't see why the GPU should "care" if the VM was brought down "cleanly" or not If a game crashes on a gaming PC, the GPU of that PC just stops executing the code so should be the same if a VM crashes, the GPU just stops doing the VM stuff.
  28. V

    hard drives for plex media server

    wrong for you maybe I have 4xWD RE4 1TB in my ESXi host and I can hear them very well but I can't hear the 4x WD RED 3TB in the Synology NAS. after all the specs are clear WD RE4 3TB Acoustics Idle Mode 31 dBA (average) Seek Mode 0 34 dBA (average) Current Requirements Power Dissipation...
  29. V

    The [H]ard Forum Storage Showoff Thread - Post your 10TB+ systems

    because.. I got it for free from my work place :D anyway it will be well populated in the next months... ;)
  30. V

    hard drives for plex media server

    the RE4 are too noisy (except for the 1TB model which is quieter) and they have pretty high power consumption...
  31. V

    hard drives for plex media server

    yep green are not even an option
  32. V

    The [H]ard Forum Storage Showoff Thread - Post your 10TB+ systems

    the always running stuff is "only" (from the bottom) the UPS :p the Synology RS814 (4x 3TB WD RED - RAID10) the first Supermicro, which is my ESXi 5.5 single node (E3 1230V, 32GB RAM, 4x 1TB WD RE4 - RAID10 +some 2.5 500G 7200) the Cisco SG300-10 the rest is too powerful/noisy/power...
  33. V

    hard drives for plex media server

    Hi, I'm building a Plex Media Server and I'm not sure which hard drives buy. I'm looking for 4 drives (in RAID 10). They should be able to sustain about 4-5 simultaneous 1080p (8Mbit) video streams. What you think about the WD Purple series? They are optimized for video surveillance but...
  34. V

    have you ever seen this celeron?

    looks like a Slot1 Celeron with some kind of clip to keep it in the socket (?) I never seen nothing like that. Could be a prototype? edit: ok should be just a normal slot 1 celeron like that: I must correct: I never seen a slot 1 heatsink like that :D
  35. V

    Backup ESXi

    What about VMware vSphere Essentials Kit (837.20 USD) and then use vSphere Data Protection? edit: uhm looks like the essential does not include Data protection (link). Can't find how much it costs as stand-alone..
  36. V

    NFS/iSCSI storage over the Gigabit limit

    Hi, not sure if this is a network topic, anyway... I have the following stuff - Synology RS814 with 2x 1Gigabit interfaces (4x 3TB WD Red drives, Raid 10) - Custom ESXi server with 2x 1Gigabit free interfaces - CISCO SG-300-10 Layer 3 switch What I want to archive I would like to...
  37. V

    Storage server for vmware

    I have to buy a storage server for a vmware cluster. The budget is about $20K. We already have an EMC Isilon as main storage, so this will be just in case of any problem with the isilon. The usable space should be at least 10TB, with 10K rpm drives in RAID10 (no raid5-6 etc.) ideas?
  38. V

    Pictures Of Your Dually Rigs!

    thanks for the suggestion TeeJayHoward :)
  39. V

    Pictures Of Your Dually Rigs!

    new toys for my home lab :) Mostly Xeon E5506 (Nehalem), 66GB 1333ECC REG, 3x X8DTN+ and 1x X8DTE-F. will merge into 3 servers, 2 dual processore and one single
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