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Will more memory improve slow server during daily backups?

Discussion in 'General Discussion' started by vecdeal, Sep 28, 2011.

  1. vecdeal

    vecdeal Registered

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    My server really slows down every night during daily backups, with 'top' showing very high percentage of 'wa' - ie. i/o wait cpu time. I've changed from using compression backups to incremental uncompressed backups, but while that helps, it doesn't solve the problem.

    I realise the problem is caused by heavy disk access - but would adding more memory to my VPS help? Does more memory allow better file caching and more efficient disk access?

    If this won't help, any suggestions? I want to use CPanel's backup process because it does a consistent capture of the MySQL databases - just copying the MySQL table files seems a bit risky.
     
    #1 vecdeal, Sep 28, 2011
  2. Infopro

    Infopro cPanel Sr. Product Evangelist
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    I don't think more memory will help for backups, no. Cleaning up large accounts should.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #2 Infopro, Sep 29, 2011
  3. SoftDux

    SoftDux Well-Known Member

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    Chances are your disk is low on IO and you'll either need to move to faster disks, and / or move to RAID1 or RAID10 for improved IO
     
    #3 SoftDux, Oct 10, 2011
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