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SCSI Raid - Worth it?

Discussion in 'Storage Drives' started by monkeypants, 18 May 2006.

  1. monkeypants

    Mobster

    Joined: 12 Jun 2005

    Posts: 2,812

    Location: A lake!

    I'm toying with the idea of getting two 18Gb 15K SCSI drives and a raid card. Trouble is, I'm limited to PCI. So, should I go for this, or try and get two cheap 36Gb raptors?
     
  2. PureAppleJuice

    Wise Guy

    Joined: 18 Dec 2005

    Posts: 1,433

    Location: Londontown

    Well, the SATA2 WD Raptors are equally fast, saves you buying a PCI card. The price you pay for all of that you could probably get a 74gb Raptor, or maybe 2.
     
  3. monkeypants

    Mobster

    Joined: 12 Jun 2005

    Posts: 2,812

    Location: A lake!

    The drives would be £20ish each so the SCSI setup wouldn't be expensive.

    When are the new 74Gb Raptors coming out? The ones with 16mb cache?
     
  4. PureAppleJuice

    Wise Guy

    Joined: 18 Dec 2005

    Posts: 1,433

    Location: Londontown

    Not sure :( How much is the PCI card?
     
  5. Indy500

    Capodecina

    Joined: 7 Mar 2005

    Posts: 17,509

    Probably cheap as well, judging by the cost of my Adaptec (£11.50).
     
  6. PureAppleJuice

    Wise Guy

    Joined: 18 Dec 2005

    Posts: 1,433

    Location: Londontown

    Oops, well, now I look like a fool :D Last time I looked at SCSI was a couple of years back, so i'll leave this thread be now :p
     
  7. Indy500

    Capodecina

    Joined: 7 Mar 2005

    Posts: 17,509

    Dont buy it new, is what I'll say. Too pricey. Nothing wrong with used SCSI as its reliable\long lasting compared to regular SATA\IDE drives.
     
  8. monkeypants

    Mobster

    Joined: 12 Jun 2005

    Posts: 2,812

    Location: A lake!

    Used is best, but would the PCI bus limit me meaning I don't get full performance from the drives?
     
  9. Indy500

    Capodecina

    Joined: 7 Mar 2005

    Posts: 17,509

    Dont recall many drives in RAID exceeding 133 megabytes per second.
     
  10. rpstewart

    Man of Honour

    Joined: 11 Mar 2003

    Posts: 10,744

    Location: Greenock, Scotland

    A pair of drives no, but a decent SCSI RAID5 array will run at well over 250Mb/s. I've seen 400Mb/s before but that's from a fibre channel SAN.
     
  11. utherpendragon

    Hitman

    Joined: 4 May 2006

    Posts: 508

    I'd recommend actually hearing 2 15k disks running before you commit to it. In a home PC I feel 10k in raid arrays are loud enough
     
  12. cavemanoc

    Mobster

    Joined: 23 Mar 2005

    Posts: 3,571

    Another vote for 2nd hand Scsi setups here - they really are awesome if you want quick access in games and on the desktop. There are several problems at the moment, the larges one being that the PCI interface is horribly limiting , and though you still get good seek times, the throughput is completely saturated by one drive, never mind 2/5/20!

    Have a peak at the thread I set up a while ago - might answer a few questions!

    Scsi - the future?

    I wouldn't go back - but then I do accept that they have issues (noise/size/cost) But then I think they are worth all that and more!