Re: Idiots guide to RAID?

Discussion in 'Computer Support' started by Me2U, Jul 11, 2003.

  1. Me2U

    Me2U Guest

    For mirroring different size and speed drives are no big deal. For striping it's best to have them evenly matched in capability. (speed, size)

    Fredrick wrote:

    > The typical promise RAID supports striping (1) and mirroring (2), no
    > RAID 3 & 5.
    >
    > It is best to use identical drives (size, manufacturer, specs, etc.),
    > for striping. You can add a new larger drive to an existing smaller
    > drive for mirroring. I prefer striping for increased OS performance but
    > I always have a drive image handy for disaster recovery.
    >
    > After the drives are physically installed, you typically enable the
    > controller and select RAID in the main Bios, then reboot and run the
    > Promise build bios to configure the array.
    >
    > I think it is best to use two drives & two cables, both set as a primary
    > masters rather than a PM/PS, in terms of performance.
    >
    > The controller will detect properly installed drives during boot an
    > identify which key(s) to hit to run the RAID bios - it is easy from this
    > point - just select the configuration for the array.
    >
    > If this works, remember to set the Promise controller to Primary Master
    > in the MB bios if this nis going to be your OS drive...
    >
    > Also, with striping, your OS will probably not have the driver installed
    > so if you transfer your old OS to the new array, it will not load. You
    > can usually avoid the reinstall if you set the array first, let windows
    > detect the array, install the driver, image the partition, switch the
    > array to boot and then transfer the image with the driver to the new
    > boot/OS drive.
    >
    > see these links:
    >
    > http://www.tomshardware.com/
    >
    > http://www.finitesystems.com/PRODUCT/raid/raidlevel.htm
    >
    > + the install guides on the manufactures web site
    >
    > TC
    >
    > Hi - Adopt Me! wrote:
    > > At the moment, I've got more hard drives than sense and am looking to put
    > > some of them to work using my motherboard's built-in RAID connectors.
    > >
    > > I know a bare minimum about how RAID works, but was looking to setup a RAID
    > > 0+1 array using two of the drives to offer performance and data redundancy,
    > > albeit at the cost of 50% of the available space. This seems a fair
    > > trade-off given my excess of ignored drives at the moment.
    > >
    > > Hard part is where to begin. Which drives are most suitable? Must they be
    > > the exact same size and from the same manufacturer? Are RAID 3 & 5 available
    > > from my Promise controller? Is there a website that can answer these
    > > questions? And where have I left my Iwill KK266 owner's manual?
    > >
    > > Answers to any of the above questions appreciated.
    > >
    > >
    Me2U, Jul 11, 2003
    #1
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