dynamic disk problem?

C

chi

i want to buy a new harddisk and install it as dynamic disk
then i want to make c: become raid 1 and other become raid 0 by computer
managance
but i cant convert the c: drive to other volume , it is still simple
volume ,
i want to ask how to do that
 
Y

Yves Leclerc

C: is your system disk and will not convert to a dynamic disk easily.

Also, in order to set up a RAID 1 system, you need 2 hard drives, usually of
the same size. RAID 1 mirrors the 2 drives as one hard drive half of the
combined hard drive sizes (i.e: 2 hard drives of 80GB -- Raid 1 = 160GB
total size with 80GB mirrored only. If the first 80GB fails, the second
takes over).
 
R

R. McCarty

Also - Dynamic disks are visible only inside XP itself. So if you plan
to use any type of Disk Management software - it may have issues
if you convert/use Dynamic.

Raid is best accomplished with a dedicated Raid controller card or
a Motherboard that implements it. PCI Raid controllers can be
bought for around ~$30+.

Before undertaking a conversion like you're describing, I would
suggest you make a System Image (Just in Case).
 
K

Kerry Brown

chi said:
i want to buy a new harddisk and install it as dynamic disk
then i want to make c: become raid 1 and other become raid 0 by computer
managance
but i cant convert the c: drive to other volume , it is still simple
volume ,
i want to ask how to do that

You can't mirror C: until you have enough free space (unallocated) on
another drive. You must install another drive the same size or larger,
preferably not on the same cable unless they are SCSI drives. Don't make any
partitions. If you already have partitions on the 2nd drive you must delete
enough of them so you have enough space to mirror C: Go into the disk
management mmc and you will be able to mirror c: Software mirroring is not
the best solution. You will take a slight performance hit. If you do this
make sure you are familiar with the repair console and boot.ini files. If
one of the mirrored drives fails you may have to edit boot.ini in order to
boot from the remaining drive.

Kerry Brown
KDB Systems
 
J

JW

i tried using striped volumes in XP once, and took a big performance hit
too. let me ask you a hypothetical question.

if a striped array was set up during a new installation of XP, could the
Windows files be installed on the striped array ?

i would not do it because of the performance hit, but i'm just curious.
 
K

Kerry Brown

If it was a hardware setup and you had the right drivers yes. I don't know
of a way to set up a software striped array on the boot partition. If you
have a good SCSI controller even a software striped array should be faster
than a single drive. With IDE drives who knows, depends a lot on the
controller. Striped arrays are generally used to improve performance at the
cost of realiabilty. A small striped array with SCSI drives for a swap file
can increase performance.

Kerry Brown
KDB Ssytems
 
K

Kerry Brown

I was thinking of Windows server. I don't think you can do software striped
arrays with Windows XP.

Kerry Brown
KDB Systems
 
C

chi

You can't mirror C: until you have enough free space (unallocated) on
another drive. You must install another drive the same size or larger,
preferably not on the same cable unless they are SCSI drives. Don't make any
partitions. If you already have partitions on the 2nd drive you must delete
enough of them so you have enough space to mirror C: Go into the disk
management mmc and you will be able to mirror c: Software mirroring is not
the best solution. You will take a slight performance hit. If you do this
make sure you are familiar with the repair console and boot.ini files. If
one of the mirrored drives fails you may have to edit boot.ini in order to
boot from the remaining drive.

Kerry Brown
KDB Systems
This is what i want to do. i know in WIndows XP you can use 2 disks to
set up dynamic disk , i want thesystem partition (C: ) can mirror but
another disk, and other not important data , it save in other partition
is make by raid 0 by disk maagement ,But how to mirror, i cant find in
disks management ,Thx
 
K

Kerry Brown

chi said:
This is what i want to do. i know in WIndows XP you can use 2 disks to
set up dynamic disk , i want thesystem partition (C: ) can mirror but
another disk, and other not important data , it save in other partition
is make by raid 0 by disk maagement ,But how to mirror, i cant find in
disks management ,Thx

Read my post. It tells you how to enable it. You need two disks installed,
one of which has enough unallocated space available to mirror the other
drive. Until you have these requirements mirroring is not available. If you
have met these requirements right click the volume you want to mirror and
mirror will be in the menu. If you have not met these requirements mirror is
not listed in the menu. I suggest you read up on mirroring at the following
links. I don't think you understand the concept entirely.

http://www.microsoft.com/resources/...ll/proddocs/en-us/dm_add_mirror_existing.mspx

http://www.microsoft.com/resources/...ll/proddocs/en-us/dm_add_mirror_existing.mspx

Kerry Brown
KDB Systems
 
J

JW

page 835 in the book Windows XP Inside Out
explains how to set up a striped volume using XP.

i tried it using IDE drives, but performance was degraded.
 
J

JW

i mean
it explains how to use XP to set up a striped volume.

so XP was already installed, and the striped volume was used for other
data (maybe My Documents folder, and/or a second Program Files folder,
and/or a swap file, but i don't remember what all i tried it with).
 
K

Kerry Brown

Your right, I was thinking back to my Win 2000 MCSE courses going from
memory. It's software RAID 5 that isn't supported in XP. RAID 0 & 1 are
supported.

Kerry Brown
KDB Systems
 
C

chi

i according the document to do , is it because my window is xp
professional not 200 server, becaue in document
it only support windoww 2000 server , advance server datacenter
 
K

Kerry Brown

chi said:
i according the document to do , is it because my window is xp
professional not 200 server, becaue in document
it only support windoww 2000 server , advance server datacenter

Windows XP supports software RAID 0 & 1 (striped volumes & mirrored volumes)
Windows server supports RAID 0, 1, & 5. You can set up a mirrored drive in
Windows XP. It seems like we have a language problem. What is your native
language and perhaps someone can direct you to a forum in that language.

Kerry Brown
KDB Systems
 

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