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Online.net IO SSD Speed
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Online.net IO SSD Speed

Hello Guys.
Am owning a Dedibox SC SSD 2016 from online.net and today tested the IO and this is what I get:

[root@tpt ~]# dd if=/dev/zero of=/root/testfile bs=1G count=1 oflag=direct
1+0 records in
1+0 records out
1073741824 bytes (1.1 GB) copied, 24.8319 s, 43.2 MB/s
[root@tpt ~]#

Is this ok for SSD?

Comments

  • Not sure how to respond apart from this is my 'limited 33xx' with a slow 7200rpm laptop HDD
    1+0 records in
    1+0 records out
    1073741824 bytes (1.1 GB, 1.0 GiB) copied, 8.65567 s, 124 MB/s

  • This is what my oldest server with a normal spinnng disk reports:

    1073741824 bytes (1.1 GB) copied, 10.866 s, 98.8 MB/s

    So, no. This seems not okay for SSD. ;-/

  • Although trhere is one variable - just how full is this SSD?

  • AmitzAmitz Member
    edited September 2016

    And what does

    ioping -R /

    say?

  • Why are you using a 1G blocksize?

  • Same command on a Dedibox XC SSD:

    1073741824 bytes (1.1 GB, 1.0 GiB) copied, 4.52121 s, 237 MB/s

    Not the very best, but fine I guess.

  • WebProjectWebProject Host Rep, Veteran

    WHT said: 24.8319 s, 43.2 MB/s

    the speed for SSD hard drive is too slow, you do get 150+ MB/s (depends on setup)

  • Ok thanks. I have already contacted online.net

  • jarjar Patron Provider, Top Host, Veteran
    edited September 2016

    MB/s on sequential write is not a valid test of whether a drive is good or not. IOPS is far more telling, and the most important factor of all is: Is this causing problems for your particular applications? Do your applications require writing large blocks of 200+MB/s of data to disk constantly?

    DD test porn is cool, but that's all it is.

  • WHT said: dd if=/dev/zero of=/root/testfile bs=1G count=1 oflag=direct

    maybe try:
    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test

  • tamicrealotamicrealo Member
    edited September 2016

    this is clearly a "diamond disk", which reminds me the couple dollar LIFE-TIME vps.

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