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8 Comments

  1. 1

    Mvd

    Hi,
    will ssd-cache only be available in specific slots in the qnap?
    How to determine which slots for qnap 869 pro?

    Thx

    Reply
    1. 1.1

      viktorious

      Hi, I’ve just learned that: “SSD caching function is not available for TS-x69 series.”

      Source: http://www.qnap.com/en/index.php?lang=en&sn=845&c=2699&sc=&n=20045

      Reply
      1. 1.1.1

        Mvd

        Thx for the answer.
        And what a shame for my 869 pro 🙁

        Reply
  2. Pingback: Might consider this for the new homelab | Virtual-J

  3. 2

    FSE

    Hey, cool test, thanks for putting this together!
    Do you know, or have some experience, about the SSD cache block size? (Especially with VMWare iSCSI datastore)
    Will it be faster if you synchronize the SSD block size with the block size of the VMWare datastore?

    Thx

    Reply
    1. 2.1

      viktorious

      Good question, but I don’t think I can help you with an answer. Anybody else?

      Reply
  4. 3

    Sirozha

    Hi, why does the test with SSD cache enabled show a six-fold increase in IOPS of RealLife Server Load writes over the same test without SSD cache enabled? QNAP claims that their implementation of SSD caching only affects reads. Before I replace my TS-459L with a model that supports SSD caching, I’d like to make sure that the writes benefit from SSD caching.

    Thank you!

    Reply
    1. 3.1

      viktorious

      Because read IOPS are cached, the spinning disks can offer more write IOPS, thus you can (will) experience an improvement in writes.

      Reply

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