Improve speed, only 50MB/s

    • OMV 3.x

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    • Improve speed, only 50MB/s

      Hi,

      I have installed OMV on a microserver gen8, the OS is in a SSD and i a have 2x6TB in mirror and 1TB.

      Write on both HDD don't exceed 60MB from a WINDOWS 7 PC, while the drive tests from the microserver have achieved min 100MB.

      I also used iperf to test my wired connection, i have almost 1Gb both ways.

      I tried the max protocol option but didn't improve the speed.

      Would you have any advice?
      Could it be due do the CPU?

      Thank you
    • wolf69 wrote:

      Would you have any advice?
      Did you read the Solution to Common Problems thread at the top of every forum section? - Solutions to common problems

      wolf69 wrote:

      Could it be due do the CPU?
      No, it will saturate gigabit easily.
      omv 4.1.6 arrakis | 64 bit | 4.16 backports kernel | omvextrasorg 4.1.6
      omv-extras.org plugins source code and issue tracker - github.com/OpenMediaVault-Plugin-Developers

      Please read this before posting a question.
      Please don't PM for support... Too many PMs!
    • Which file system do you use ? Might be a block format thing with yout 6To disk as if you have 50MB/s between disks inside the server, that's no a network problem...
      Lian Li PC-V354 with Be Quiet fans | Gigabyte GA-G33M-DS2R | Intel E8400@3,6Ghz | 6GB DDR2 RAM
      1x500MB SSD for System/Backup | 7x2To HDD with ZFS RAIDz2 for Datas/Snapshots
      Powered by OMV v4.1.6 on a 4.14 backport kernel
    • Maybe the blocks of the disks are not align with the one of the FS...
      Check your disks block size of your hardware, and compare it to the ext4 block size

      Source Code

      1. root@home-server:~# tune2fs -l /dev/sda1
      2. tune2fs 1.43.4 (31-Jan-2017)
      3. Filesystem volume name: System
      4. Last mounted on: /
      5. Filesystem UUID: 052263f1-d951-4a32-bdbf-052649fe60da
      6. Filesystem magic number: 0xEF53
      7. Filesystem revision #: 1 (dynamic)
      8. Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent 64bit flex_bg sparse_super large_file huge_file dir_nlink extra_isize metadata_csum
      9. Filesystem flags: signed_directory_hash
      10. Default mount options: user_xattr acl
      11. Filesystem state: clean
      12. Errors behavior: Continue
      13. Filesystem OS type: Linux
      14. Inode count: 739648
      15. Block count: 2953728
      16. Reserved block count: 29537
      17. Free blocks: 1594809
      18. Free inodes: 659741
      19. First block: 0
      20. Block size: 4096
      21. Fragment size: 4096
      22. Group descriptor size: 64
      23. Reserved GDT blocks: 1024
      24. Blocks per group: 32768
      25. Fragments per group: 32768
      26. Inodes per group: 8128
      27. Inode blocks per group: 508
      28. Flex block group size: 16
      29. Filesystem created: Thu Mar 15 09:11:07 2018
      30. Last mount time: Wed Apr 18 17:05:21 2018
      31. Last write time: Wed Apr 18 17:05:21 2018
      32. Mount count: 53
      33. Maximum mount count: -1
      34. Last checked: Thu Mar 15 09:11:07 2018
      35. Check interval: 0 (<none>)
      36. Lifetime writes: 253 GB
      37. Reserved blocks uid: 0 (user root)
      38. Reserved blocks gid: 0 (group root)
      39. First inode: 11
      40. Inode size: 256
      41. Required extra isize: 32
      42. Desired extra isize: 32
      43. Journal inode: 8
      44. Default directory hash: half_md4
      45. Directory Hash Seed: d766a710-cb34-4307-924d-e1b2a03ff2f4
      46. Journal backup: inode blocks
      47. Checksum type: crc32c
      48. Checksum: 0x43b24020
      Display All
      You can also try to make some runs with basics tests speed with dd and hdparm :

      see here: cyberciti.biz/faq/howto-linux-…formance-with-dd-command/

      Source Code

      1. root@home-server:~# dd if=/dev/zero of=/test.bin bs=1G count=1 oflag=direct; rm /test.bin
      2. 1+0 enregistrements lus
      3. 1+0 enregistrements écrits
      4. 1073741824 bytes (1,1 GB, 1,0 GiB) copied, 4,95067 s, 217 MB/s
      Lian Li PC-V354 with Be Quiet fans | Gigabyte GA-G33M-DS2R | Intel E8400@3,6Ghz | 6GB DDR2 RAM
      1x500MB SSD for System/Backup | 7x2To HDD with ZFS RAIDz2 for Datas/Snapshots
      Powered by OMV v4.1.6 on a 4.14 backport kernel