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  1. #1
    Join Date
    Sep 2005
    Posts
    468

    Optimize EIDE hard drives

    I am still learning WHM on our VPS. Noticed something called "Optimize EIDE hard drives" with this warning: Warning: Optimizing drives may cause the system to lock up, or other wise crash in some way if you are using some older buggy chipsets. However you can gain SIGNIFICANT speed and performance. Proceed at your own risk.

    Has anyone run this? If so, did you see any significant benefits?

  2. #2
    Join Date
    Dec 2002
    Location
    Amsterdam/Rotterdam, NL
    Posts
    2,085
    It's probably a good idea to ask this at the cPanel forums as they probably have a thorough understanding of how it works exactly.

  3. #3
    Join Date
    Sep 2005
    Posts
    468
    So is WHM always bundled with Cpanel? Not sure what Cpanel would have to do with server side setups. Can you elaborate? Thanks in advance.

  4. #4
    Join Date
    Jan 2004
    Location
    York, UK
    Posts
    371
    Quote Originally Posted by mealto
    I am still learning WHM on our VPS. Noticed something called "Optimize EIDE hard drives" with this warning: Warning: Optimizing drives may cause the system to lock up, or other wise crash in some way if you are using some older buggy chipsets. However you can gain SIGNIFICANT speed and performance. Proceed at your own risk.

    Has anyone run this? If so, did you see any significant benefits?
    I'm guessing it is referring to turning on all the modern options (DMA mode, blocks/read and read-ahead tweaks, 32-bit transfers) if they aren't already on.

    The dangerous part is that some combinations of drives and controllers (especially when you have two drives on the same cable) don't work well together with some combinations of these options. The chance of a problem is very very small, but if a problem does happen it can result in serious file-system corruption hence the warning.

    On a VPS it'll make no odds anyway - the host kernel controls such settings for the physical hardware and your VPS won't be able to affect them. Chances are that your VPS provider has the disc settings optimised as much as is safe anyway (and in fact is probably running off a SCSI or SATA RAID solution where the EIDE options aren't relevant anyway).

  5. #5
    Join Date
    Jan 2004
    Location
    York, UK
    Posts
    371
    Quote Originally Posted by mealto
    So is WHM always bundled with Cpanel? Not sure what Cpanel would have to do with server side setups. Can you elaborate? Thanks in advance.
    WHM is the admin level of cPanel. It's what the root users (and to a certain extent resellers) get their hands on. When logged in as the root user WHM offers a lot of control of the server as well as the ability to manage accounts, including Apache build tweaks, mail service setup, and a fair amount of other stuff.

    A server with cPanel will always have WHM, but you won't see it as just a standard user and resellers only see a very limited part of it (just enough to manage their resold accounts).

  6. #6
    Join Date
    Sep 2005
    Posts
    468
    Hey thanks for taking the time to reply. Much appreciated. Guess I won't have to wonder if this will make a difference!

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