Converting Boot/System Disk to Dynamic Disk

Discussion in 'Windows Small Business Server' started by denko, Dec 23, 2006.

  1. denko

    denko Guest

    I have a SBS2003 installation with two HDD's. Disk 0 has two partitions -
    one partition contains the boot/system files and the second partition
    contains data. I want to use the second disk to create a software mirror of
    the data partition on disk 0.

    When SBS2003 installed, it created disk 0 as a "basic" disk and I know it
    needs to be a dynamic disk before I can mirror it. I see that I an option
    exists to convert diski 0 to dynamic.

    My question and concern is that will the system still boot fine and will
    that partition be undisturbed when I've finished the dynamic conversion. I
    checked the conversion steps and there seems to be a lot of warnings
    concerning converting the boot/system disk.

    Any help/guidance would be appreciated.
     
    denko, Dec 23, 2006
    #1
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  2. denko

    Gregg Hill Guest

    It is safe and is required if you will be using software RAID, which brings
    me to my next comment. AVOID software RAID. Buy a hardware RAID controller
    instead.

    Gregg Hill
     
    Gregg Hill, Dec 23, 2006
    #2
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  3. denko

    Anna Clark Guest

    Hi Gregg:

    Can you provide some documentation as to why the OP, and presumably others,
    should avoid software RAID? I have found it to very reliable and easier to
    manage than many of the on-board "RAID" controllers that will not allow one
    to add a drive after the OS is installed, or that lose the RAID settings if
    both of the drives are removed and force one to begin again.

    If anyone knows of a source for info regarding manageable on-board
    controllers, that would be a great resource.

    I wholeheartedly agree that the "best" RAID controllers are discrete add-on
    cards, but for some they are fairly pricey.
     
    Anna Clark, Dec 23, 2006
    #3
  4. You don't have to use the Servers CPU in Hardware RAID.

    Here's a Document on it
    http://www.adaptec.com/pdfs/raid_soft_v_hard.pdf
    http://www.adaptec.com/NR/rdonlyres/14B2FD84-F7A0-4AC5-A07A-214123EA3DD6/0/4423_SW_HWRAID_10.pdf

    The only reason I'd consider Software RAID myself is on a Home users Desktop
    and multiple users aren't accessing it, and Cost is a big issue.

    As far as cost.
    Yes, if you want SCSI it does cost $200 PLUS for a RAID card.
    (But if you have SCSI you are probably concerned with SPEED so why have a
    weak link?)

    But I still believe for a "SMALL" Business Server SATA is a great
    Alternative
    and Bang for Buck, it can't be beat.
    With 75 People unless you are into Video Production SATA should be fine.
    (If you were you'd have another server to handle that anyway.)

    SATA Cards are Under $200 and well worth it IMO...

    Your Mileage May Vary :)

    Russ



    --
    Russell Grover
    SBITS.Biz
    Microsoft Certified Small Business Specialist.
    MCP, MCPS, MCNPS, (MCP-SBS)
    support @ SBITS.Biz
    Remote SBS2003 Support
    http://www.SBITS.Biz
     
    Russ - SBITS.Biz \(MCP SBS\), Dec 23, 2006
    #4
  5. Even using SCSI320 I've seen where a softraid pair (RAID1) rebuilds on every
    restart. I believe this is due to excessive IO during shutdown and may be
    more prominent on SBS due to it's many functions all shutting down together.
    I believe the system doesn't set the 'array in sync' during shutdown.

    I've seen the behaviour on decent hardware (Xeon 2.x, possibly dual, 2GB
    RAM) being a test system and therefore not heavily loaded.

    I do however consider softraid preferable to those useless onboard SATA RAID
    systems that have no error logs, very minimal management functions, no
    alarm, no provision for hotspare, which generally also borrow CPU cycles and
    are in fact hybrid soft/hard/driver systems.
     
    SuperGumby [SBS MVP], Dec 23, 2006
    #5
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