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Thread: Slow performance on new RAID array after cloning old array?

  1. #1
    Join Date
    Feb 2010

    Default Slow performance on new RAID array after cloning old array?

    Hi Everyone,

    I have just cloned a RAID array and I am concerned about it's performance.

    A bit of background...

    My Motherboard = ASUS Z9PE-D16
    RAID Card = PIKE 2008 LSISAS RAID card

    The initial RAID array consisted of 6 x 1TB Seagate Constellation (ST1000NM001) SAS drives in a RAID1+0 (10) configuration.

    The new array consists of 6 x 4TB WD SATA drives in a RAID1+0 (10) configuration.

    Initial performance is quite slow, but this may just be due to parity checking. On paper the original, and new drives are comparable.

    Whilst the original drives were SAS and the new drives are SATA they both operate at 7200RPM and have 6Gbps interfaces.

    My question is - "Is my initial slow performance likely due to parity checking, or will I experience ongoing slowness?"

    Any help here will be greatly appreciated. Furthermore whatever you offer with regard to help may assist a piece of Australian Cultural heritage!

    Kind Regards,

    Last edited by Mr Davo; 10-11-2015 at 12:50 AM.

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