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RestlessRodent

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About RestlessRodent

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  1. I'm planning on building a 10 disk RAID consisting of RAID60, 5 disks per set with two sets.

    The disks will all be 2TBs in size and will be jam packed into a computer case.

    This should give me about 12TB of space with the possibility of having 2 failed disk with a fully working RAID. 3 failures gives me 83% and 4 failures gives me 67%.

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    Any thoughts on this?

    1. Show previous comments  11 more
    2. Planky

      Planky

      I have a 3 x 2TB Disk RAID, which I use for all my downloaded stuff - IE stuff I can reacquire. Has 1TB free, and I struggle to fill that.

      My main drive (SSD) gets backed up to it, then eventually I move to an offline disk.

      I have a single 1TB disk for Steam and other games I dont want on my SSD. Again, not worried terribly if I loose that.

      If I were Ghost, I'd just setup a RAID/JBOD and add disks as needed. Cheaper as others mentioned. Or get a DROBO (id love one, but dont want to pay the price when I could build myself)

    3. Super Jamie

      Super Jamie

      The problem with all this is, by the time the first drive fails, the other drives will be approaching their MBTF. With each disk you add, you increase your chance that another disk will die during the rebuild and basically make the whole lot useless.

      You are spending $1800 on disks, plus the PC and RAID controller, plus a case with adequate PSU and cooling, probably to hold pirated movies and shows which you'll never have the time to watch even if you spent the rest of your free time forever doing so.

      Take that 2 and a half grand, and buy what you actually want on DVD instead.

      If you insist though, I would mirror the lot, twice, and make a filesystem on each abstracted block device to minimise data loss, either due to disk failure or filesystem corruption.

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      And for the love of god, do this with a proper (ie: Adaptec) hardware RAID controller, or Linux software RAID. Software RAID is probably preferable, as it just abstracts block writes. Following the above scheme, you could power down, take all the DISK1s and put them in another PC, and your 4 filesytems should appear without a problem.

    4. RestlessRodent

      RestlessRodent

      I'm planning on cutting down the disk count to at most 8 (since the case is too small for all those disks).

      Super Jamie said:

      You are spending $1800 on disks, plus the PC and RAID controller, plus a case with adequate PSU and cooling,


      I can get the disks for $100 each, no tax, free shipping. The system board is just an Intel Atom D2700 (don't need an i7 just to store files), and the controllers are a SIL and a Matrox. The case has a whole bunch of 120mm fans however.

      Super Jamie said:

      probably to hold pirated movies and shows which you'll never have the time to watch even if you spent the rest of your free time forever doing so.


      Most Movies and TV shows suck, why would I waste my time watching that garbage? I also don't pirate stuff. And if you start to think about software, I use Debian.

      Super Jamie said:

      Take that 2 and a half grand, and buy what you actually want on DVD instead.


      DVDs are a pain in the ass, before I watch them I rip them on my existing file server and stream it. Easier to watch rather than having a DVD drive dangling off a USB port.

      Super Jamie said:

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      Don't watch Movies, TV shows, or Anime.

      Super Jamie said:

      And for the love of god, do this with a proper (ie: Adaptec) hardware RAID controller, or Linux software RAID. Software RAID is probably preferable, as it just abstracts block writes. Following the above scheme, you could power down, take all the DISK1s and put them in another PC, and your 4 filesytems should appear without a problem.


      I already use PCI/PCI-e cards with hardware RAID support, but I always use them as single disks and then utilize software RAIDs. This is because mdadm is consistent as most hardware RAIDs cannot be used if you were to switch a card for another vendor.

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