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Home » Microsoft » Windows Server » Windows Server General Help » about hard drive and RAID5
about hard drive and RAID5 [message #164282] Fri, 19 June 2009 03:57 Go to next message
6stemD  is currently offline 6stemD
Messages: 6
Registered: July 2009
Junior Member
Hi everybody,

I have a question about the RAID 5 technologies and resize hard drive.
So i have a server with 2 drives in mirror for the system and 3 drives in
RAID 5 for the data. This RAID was managed with an HP Smart Array.
I add a new disk for the RAID5 modules to increase the size of this module.
After that, a check in Windows 2003 if the drive have the new size.
But the drive was not grow up, i have the possibilty to create a new
partition with the rest of the new space.
Somebody can tell me how can i do, to extend the size of my partition in
windows ?

Thankx.


best regard
Re: about hard drive and RAID5 [message #164289 is a reply to message #164282] Fri, 19 June 2009 10:30 Go to previous messageGo to next message
techstress  is currently offline techstress  United States
Messages: 23
Registered: July 2009
Junior Member
i'm almost sure windows has built in ways to resize a partition. I'd
try the link below first. if that doesn't fit your needs, you could
boot a linux live cd and run gparted or qtparted to resize the
partition.

http://support.microsoft.com/kb/325590

On Jun 19, 3:57 am, 6stemD <6st...@discussions.microsoft.com> wrote:
> Hi everybody,
>
> I have a question about the RAID 5 technologies and resize hard drive.
> So i have a server with 2 drives in mirror for the system and 3 drives in
> RAID 5 for the data. This RAID was managed with an HP Smart Array.
> I add a new disk for the RAID5 modules to increase the size of this module.
> After that, a check in Windows 2003 if the drive have the new size.
> But the drive was not grow up, i have the possibilty to create a new
> partition with the rest of the new space.
> Somebody can tell me how can i do, to extend the size of my partition in
> windows ?
>
> Thankx.
>
> best regard
Re: about hard drive and RAID5 [message #164323 is a reply to message #164289] Fri, 19 June 2009 20:20 Go to previous messageGo to next message
Grant Taylor  is currently offline Grant Taylor  United States
Messages: 168
Registered: July 2009
Senior Member
techstress wrote:
> i'm almost sure windows has built in ways to resize a partition. I'd
> try the link below first. if that doesn't fit your needs, you could
> boot a linux live cd and run gparted or qtparted to resize the
> partition.

*nod*

Diskpart.exe is included with Windows Server 2003. If for some reason
you don't have it you can download it at the URL that 6stemD provided.

> http://support.microsoft.com/kb/325590

You can also convert the disk from a basic disk to a dynamic disk and
extend the file system. Though extended file systems on a dynamic disk
are (IMHO) not as nice as a contiguous partition on a basic disk. (I
would try diskpart.exe before I extended a file system via dynamic disks.)

I have also done this routinely with Acronis TrueImage and similar
utilities. I will speak to the possibilities with Acronis Disk Directer
(server version) with its ability to access RAIDs, Fiber Channel, and a
lot of other nifty things.



Grant. . . .
RE: about hard drive and RAID5 [message #164380 is a reply to message #164282] Mon, 22 June 2009 07:01 Go to previous messageGo to next message
JHman  is currently offline JHman
Messages: 19
Registered: July 2009
Junior Member
Hi,

read up on RAID levels for example here: http://en.wikipedia.org/wiki/RAID

The way RAID5 works, you will only be able to enlarge the available storage
space by replacing ALL the drives in the RAID5-set by larger disks. If you
only replace or add one (bigger) drive, only as much of it will be used as
the size of the smallest of the other drives.

"6stemD" wrote:

> Hi everybody,
>
> I have a question about the RAID 5 technologies and resize hard drive.
> So i have a server with 2 drives in mirror for the system and 3 drives in
> RAID 5 for the data. This RAID was managed with an HP Smart Array.
> I add a new disk for the RAID5 modules to increase the size of this module.
> After that, a check in Windows 2003 if the drive have the new size.
> But the drive was not grow up, i have the possibilty to create a new
> partition with the rest of the new space.
> Somebody can tell me how can i do, to extend the size of my partition in
> windows ?
>
> Thankx.
>
>
> best regard
Re: about hard drive and RAID5 [message #164388 is a reply to message #164282] Mon, 22 June 2009 09:41 Go to previous messageGo to next message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"6stemD" <6stemD@discussions.microsoft.com> wrote in message
news:AA5285C2-0EB0-4D46-B732-967E9F32CBED@microsoft.com...
> Hi everybody,
>
> I have a question about the RAID 5 technologies and resize hard drive.
> So i have a server with 2 drives in mirror for the system and 3 drives in
> RAID 5 for the data. This RAID was managed with an HP Smart Array.
> I add a new disk for the RAID5 modules to increase the size of this
> module.
> After that, a check in Windows 2003 if the drive have the new size.
> But the drive was not grow up, i have the possibilty to create a new
> partition with the rest of the new space.
> Somebody can tell me how can i do, to extend the size of my partition in
> windows ?
>
> Thankx.
>
>
> best regard


JHman gave you a good link on it. Essentially, you have to back up all of
your data on the RAID 5 array, then in the HP Smart Array managemtn tool,
dissolve the current logical drive and array, add the new drive, create a
new array with four drives, create a new logical drive, then restore your
data.

--
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Please reply back to the newsgroup/forum to benefit from collaboration among
responding engineers, as well as to help others benefit from your
resolution.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSA Messaging, MCT
Microsoft Certified Trainer
aceman@mvps.RemoveThisPart.org
http://twitter.com/acefekay

For urgent issues, you may want to contact Microsoft PSS directly. Please
check http://support.microsoft.com for regional support phone numbers.
Re: about hard drive and RAID5 [message #164392 is a reply to message #164388] Mon, 22 June 2009 10:40 Go to previous messageGo to next message
JHman  is currently offline JHman
Messages: 19
Registered: July 2009
Junior Member
If he wants to INCREASE available storage space, and AT THE SAME TIME KEEP
RAID5 , he will need to replace all of the disks before rebuilding in the
management tool (as per how RAID5 works).

If he sacrifices the RAID5 redundancy, he could of course just make a JBOD.
Even without adding a disk that would increase storage space by 1/3rd. But
not recommended obviously :)

(I'm sure you know but you must have mistyped :) )

"Ace Fekay [Microsoft Certified Trainer]" wrote:
> JHman gave you a good link on it. Essentially, you have to back up all of
> your data on the RAID 5 array, then in the HP Smart Array managemtn tool,
> dissolve the current logical drive and array, add the new drive, create a
> new array with four drives, create a new logical drive, then restore your
> data.
>
> --
> Ace
>
> This posting is provided "AS-IS" with no warranties or guarantees and
> confers no rights.
>
> Please reply back to the newsgroup/forum to benefit from collaboration among
> responding engineers, as well as to help others benefit from your
> resolution.
>
> Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSA Messaging, MCT
> Microsoft Certified Trainer
> aceman@mvps.RemoveThisPart.org
> http://twitter.com/acefekay
>
> For urgent issues, you may want to contact Microsoft PSS directly. Please
> check http://support.microsoft.com for regional support phone numbers.
>
>
Re: about hard drive and RAID5 [message #164401 is a reply to message #164392] Mon, 22 June 2009 11:34 Go to previous messageGo to next message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"JHman" <JHman@discussions.microsoft.com> wrote in message
news:CAD855A2-D63F-48BB-B870-F70B02BF6C34@microsoft.com...
> If he wants to INCREASE available storage space, and AT THE SAME TIME KEEP
> RAID5 , he will need to replace all of the disks before rebuilding in the
> management tool (as per how RAID5 works).
>
> If he sacrifices the RAID5 redundancy, he could of course just make a
> JBOD.
> Even without adding a disk that would increase storage space by 1/3rd. But
> not recommended obviously :)
>
> (I'm sure you know but you must have mistyped :) )


Not sure if I mistyped, but maybe I didn't get across what I was saying
correctly. He doesn't have to replace ALL three drices, too. All he needs to
do is purchase and add an identical drive to the drives in the RAID 5
confibox, then blow away the current RAID 5, and create (not rebuild) a new
RAID 5 array with the four drives.

So effecitively if he currently has three 72 gig drives, which is giving him
an effective 144 GB of storage space with his current RAID 5 array, then he
blows it away, adds a new 72 GB drive, so there are now four 72 GB drives in
the box, then create a new RAID 5 array with the four drives, which would
now effecitively provide him 3/4 of 288 GB of usable space, or 216 GB in my
example.

I don't think he wants a RAID 0, which will give him 288 GB of non-fault
tolerant usable space.

Unless I misunderstood what you're saying?

Ace
Re: about hard drive and RAID5 [message #164407 is a reply to message #164401] Mon, 22 June 2009 15:15 Go to previous messageGo to next message
6stemD  is currently offline 6stemD
Messages: 6
Registered: July 2009
Junior Member
Thankx for your reply guys,

But, my question is simple, i have a RAID5 with 3 disk 72Go SAS, for the
moment the size of the disk in windows is 139Go (it's normal configuration
like n disk -1disk so 72*3 -72). I add a disk in this raid 5 module, With HP
ACU, all work well, now my RAID 5 have 4 disk and the size in HP ACU is 209
Go. But Windows see the new size in management disk, but i can't increase the
partition

Did you think if DISKPART can increase the new space??
There no problem with this tools?
The disk contain only data, no program or system...

Thankx
--
best regard


"Ace Fekay [Microsoft Certified Trainer]" wrote:

> "JHman" <JHman@discussions.microsoft.com> wrote in message
> news:CAD855A2-D63F-48BB-B870-F70B02BF6C34@microsoft.com...
> > If he wants to INCREASE available storage space, and AT THE SAME TIME KEEP
> > RAID5 , he will need to replace all of the disks before rebuilding in the
> > management tool (as per how RAID5 works).
> >
> > If he sacrifices the RAID5 redundancy, he could of course just make a
> > JBOD.
> > Even without adding a disk that would increase storage space by 1/3rd. But
> > not recommended obviously :)
> >
> > (I'm sure you know but you must have mistyped :) )
>
>
> Not sure if I mistyped, but maybe I didn't get across what I was saying
> correctly. He doesn't have to replace ALL three drices, too. All he needs to
> do is purchase and add an identical drive to the drives in the RAID 5
> confibox, then blow away the current RAID 5, and create (not rebuild) a new
> RAID 5 array with the four drives.
>
> So effecitively if he currently has three 72 gig drives, which is giving him
> an effective 144 GB of storage space with his current RAID 5 array, then he
> blows it away, adds a new 72 GB drive, so there are now four 72 GB drives in
> the box, then create a new RAID 5 array with the four drives, which would
> now effecitively provide him 3/4 of 288 GB of usable space, or 216 GB in my
> example.
>
> I don't think he wants a RAID 0, which will give him 288 GB of non-fault
> tolerant usable space.
>
> Unless I misunderstood what you're saying?
>
> Ace
>
>
Re: about hard drive and RAID5 [message #164409 is a reply to message #164407] Mon, 22 June 2009 15:57 Go to previous messageGo to next message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"6stemD" <6stemD@discussions.microsoft.com> wrote in message
news:C6114341-6383-47FE-9E56-6DFA71D29554@microsoft.com...
> Thankx for your reply guys,
>
> But, my question is simple, i have a RAID5 with 3 disk 72Go SAS, for the
> moment the size of the disk in windows is 139Go (it's normal configuration
> like n disk -1disk so 72*3 -72). I add a disk in this raid 5 module, With
> HP
> ACU, all work well, now my RAID 5 have 4 disk and the size in HP ACU is
> 209
> Go. But Windows see the new size in management disk, but i can't increase
> the
> partition
>
> Did you think if DISKPART can increase the new space??
> There no problem with this tools?
> The disk contain only data, no program or system...
>
> Thankx
> --
> best regard


I see. So the HP software allowed you to add the new 72GB drive to the
array, so the array now shows 4 drives with 209 usable space.

I usually do it manually, as I mentioned, creating a new partition after the
addition. HOwever, it would appear that if you don;t wnat to delete the
partition and make a new one and restore the files, you can probably try
something like Server Magic, to increase the size.
http://www.partition-tool.com/landing/partition-magic-server .htm?gclid=CJnj5q3UnpsCFdFL5QodXAGG7w

Ace
Re: about hard drive and RAID5 [message #164417 is a reply to message #164409] Mon, 22 June 2009 20:50 Go to previous message
Grant Taylor  is currently offline Grant Taylor  United States
Messages: 168
Registered: July 2009
Senior Member
Ace Fekay [Microsoft Certified Trainer] wrote:
> I see. So the HP software allowed you to add the new 72GB drive to
> the array, so the array now shows 4 drives with 209 usable space.

I was going to say. I've played with a lot of Compaq / HP SmartARRAY
controllers and all of them let me add drives to an existing RAID and
then grow the logical disk. Once the RAID and logical disk were
re-sized I just needed to resize the partition said logical disk. In my
opinion, this feature is one of the things that blows SmartARRAY
controllers way out in front of others. (DEC made good hardware and we
can still trace it's descendants.)

> I usually do it manually, as I mentioned, creating a new partition
> after the addition. HOwever, it would appear that if you don;t wnat
> to delete the partition and make a new one and restore the files, you
> can probably try something like Server Magic, to increase the size.
> http://www.partition-tool.com/landing/partition-magic-server .htm?gclid=CJnj5q3UnpsCFdFL5QodXAGG7w

*nod*

That is one way to do it.

There are many utilities to do what the OP is wanting to do. Diskpart
is Microsoft's tool (see my other post), ServerMagic from PowerQuest,
Acronis Disk Director, Ghost, and it looks like EASEUS Partition Master
Server will do it too. I can / will vouch for PowerQuest ServerMagic,
Acronis Disk Director, and Ghost as I've used them for this very
purpose. Acronis Disk Director has to be my favorite of all of these.



Grant. . . .
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