DPM not seeing disk

Discussion:

DPM not seeing disk

(too old to reply)

Brad Baker

2005-11-13 05:18:32 UTC

When we initially setup our DPM server there was only one basic disk. Since
then we have converted the basic disk to a dynamic disk and created a new
logical drive. When I go to the management tab to select the new dynamic
logical disk, it doesn't show up. I've also tried the "rescan" menu item in
the actions pane but that doesn't work either. What am I missing?

Thanks

Brad Baker

Joseph Bittman MVP MCSD

2005-11-13 05:27:21 UTC

Permalink

November 12, 2005

What type of a drive is it? DPM will not detect external USB/Firewire
drives.....

What exactly do you mean 'logical'? (I'm not completely familiar with
hardware terminology.) -- The HDs need to be physically seperate.... Is this
the case? Thanks! :-)
--
Joseph Bittman
Microsoft Certified Solution Developer
Microsoft Most Valuable Professional -- DPM

Web Site: http://71.39.42.23/
Static IP

Post by Brad Baker
When we initially setup our DPM server there was only one basic disk.
Since then we have converted the basic disk to a dynamic disk and created
a new logical drive. When I go to the management tab to select the new
dynamic logical disk, it doesn't show up. I've also tried the "rescan"
menu item in the actions pane but that doesn't work either. What am I
missing?
Thanks
Brad Baker

Brad Baker

2005-11-13 10:24:51 UTC

Permalink

What type of a drive is it? DPM will not detect external USB/Firewire
drives.....

The server has 3 physical SCSI hard drives which make up a (hardware)
RAID5 disk array.

What exactly do you mean 'logical'? (I'm not completely familiar with
hardware terminology.)
-- The HDs need to be physically seperate.... Is this the case? Thanks! :-)

I'm sorry I guess logical disks are a basic disk concept and don't apply
to dynamic disks. From what I am seeing in disk management, there are two
simple volumes. Drive C (my windows/dpm instllation drive) and drive E
(empty)
November 12, 2005
What type of a drive is it? DPM will not detect external USB/Firewire
drives.....
What exactly do you mean 'logical'? (I'm not completely familiar with
hardware terminology.) -- The HDs need to be physically seperate.... Is
this the case? Thanks! :-)
--
Joseph Bittman
Microsoft Certified Solution Developer
Microsoft Most Valuable Professional -- DPM
Web Site: http://71.39.42.23/
Static IP

coffeelover

2005-11-13 11:40:04 UTC

Permalink

I think i understand what yu are seeing/doing.
your raid 5 is presented one logical disk to the operating system.
DPM requires separate disks or logical drives.
You could redo your raid 5 layout so it presents two or more logical disks
to the operating system. Partition the first logical disk into c and d and
leave the
second one(s) unallocated which makes them available for DPM to use.

-Patrick-

-----------------------------------------------------------------------------------------------

Post by Brad Baker
When we initially setup our DPM server there was only one basic disk. Since
then we have converted the basic disk to a dynamic disk and created a new
logical drive. When I go to the management tab to select the new dynamic
logical disk, it doesn't show up. I've also tried the "rescan" menu item in
the actions pane but that doesn't work either. What am I missing?
Thanks
Brad Baker

Karandeep Anand [MSFT]

2005-11-14 04:48:20 UTC

Permalink

Brad - do try out this suggestion of presenting 2 separate disks to DPM -
one for the OS/apps and for the storage pool. Let us know if that works for
you.

Thanks,
Karandeep Anand [MSFT]
This posting is provided "AS IS" with no warranties, and confers no rights.

Post by coffeelover
I think i understand what yu are seeing/doing.
your raid 5 is presented one logical disk to the operating system.
DPM requires separate disks or logical drives.
You could redo your raid 5 layout so it presents two or more logical disks
to the operating system. Partition the first logical disk into c and d and
leave the
second one(s) unallocated which makes them available for DPM to use.
-Patrick-
-----------------------------------------------------------------------------------------------

Post by Brad Baker
When we initially setup our DPM server there was only one basic disk. Since
then we have converted the basic disk to a dynamic disk and created a new
logical drive. When I go to the management tab to select the new dynamic
logical disk, it doesn't show up. I've also tried the "rescan" menu item in
the actions pane but that doesn't work either. What am I missing?
Thanks
Brad Baker

Daniel Lai [MVP-Management Infrastructure]

2005-11-13 17:14:28 UTC

Permalink

Hello,

Thank you for your posting!

DPM can use any of the following for storage pool capacity:

¡E Direct attached storage (DAS)

¡E Fibre Channel storage area network (SAN)

¡E iSCSI storage device or SAN

The storage pool supports most disk types, including Integrated Drive
Electronics (IDE), Serial Advanced Technology Attachment (SATA), and SCSI,
and supports both the master boot record (MBR) and GUID partition table
(GPT) partition styles.

The storage pool does not support USB/1394 disks.

We recommend that you use disks with capacity of no more than 1.5 terabytes.
Because a dynamic volume can span up to 32 disks, if you use 1.5 terabyte
disks, DPM can create replica volumes of up to 48 terabytes in size.

If you have any questions, please feel to let me know. I am glad to be of
assistance.
--
Daniel Lai
Microsoft MVP Program Top Contributor
Windows Server-Management Infrastructure
Microsoft Management Solution Consultant
Culminis GCR Council Member (Hong Kong & Taiwan)
http://msmvps.com/daniel