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    A question on hard disks (running 24x7)


    Hello,

    I am building a machine where to put my files and access these from over the Internet. The machine will be on 24x7. However this is not because it will be used on a 24x7 bases but rather so that I can access my files at any time (without having to turn on the machine). In other words there will not be reads and writes all the time but rather several times a day at most.

    My question is; should I go for a server spec drive (more expensive) or is it still good to buy a normal PC spec drive (less expensive)?

    For example this one states that "All WD datacentre storage devices are designed from the ground up to deliver optimal performance and maximum data integrity while running 24x7x365 in demanding multi-slot environments."
    Western Digital SE WD2000F9YZ 2TB SATA III - 6Gb/s Hard Drive 24x7 Enterprise Class - Scan.co.uk

    This one however does not have such a statement and is also less expensive.
    Western Digital WD20EZRX 2TB Green SATA 3 - 6Gb/s Hard Drive 64MB Cache 8ms OEM - Scan.co.uk

    I am undecided if my requirement (running 24x7 but not used 24x7) entails the extra cost.

    btw - I am going to buy two of these drives because I am going to build a raided system.
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    Will your raid server be capable of entering sleep mode in the many hours between your accesses?

    It might be available 24x7 but it's not going to be in continual use 24x7.

    If you're go for expensive drives, then you would have to go for an expensive box as well, with a good PSU, and some kind of battery backup.

    How vital is it that you can access the data when you need it - for example, will you lose money if your server fails?

    And if you're exposing your files to the internet, then don't forget about all the security implications.
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    Hi Salem,

    Thanks for your reply. It is not really vital. I mean I have managed to so far with just my laptop. It is more a question of comfort and data integrity, i.e. - that I can access this data when I am away from home, and should something happen to my laptop disk I have a backup. The setup I was planning is actually three drives, two raided drives and one backup drive. This is so that photos and other files are both on the raided drives and the backup drives. The reason why I was going for raid was that should one of the disk fail than I wouldn't have to start installation again. I would just replace the faulty disk with a new one and pair the disks again.

    Really and truly I have so much redundancy that my concern is not with - if I loose a drive I would loose data - but rather more on if the hardware will be so much stressed that I would end up replacing party every so many months because I am using the wrong equipment.

    As for the other hardware. As said this is not really going to be a machine which has to handle lots of uses at all time. Mostly me, some time. Therefore I recycled an old machine I had (AMD Socket 939).
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    If I remember correctly, I believe the GREEN drives have a built-in spindown period preset in them [that can't be changed]....which would help for longevity of those drives, so long as you aren't planning on accessing them, say, every hour..and are more inclined to accessing them every 8 hrs [to decrease number of spinup/spindowns of the drive]

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