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runnerpaul
Copper

iSCSI connection not showing volume as mapped drive on my laptop

Hi All,

I have three volumes(volSQL, volData, volLogs) that I replicated from a production SAN to a DR SAN. volSQL is essentially the C:\ drive on my SQL server. volData is the data drive and volLogs drive.

I cloned all 3 replications as volumes on the DR SAN and then made an iSCSI connection to each. Now I can see the volSQL and volDATA as mapped drives on My Computer but the volData doesn't appear. I can however see it in Disk Management(along with volData and volLogs).

Does anybody have any idea what the cause of this might be? volSQL is bootable? Could that somehow be the reason? The only other difference I noticed with it when compared with the other two was that the disk drives associated with volData and volLogs had a name assigned to them but volSQL didn't.

Any help would be appreciated.

Cheers

Paul

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5 Replies
Moderator
Moderator

Re: iSCSI connection not showing volume as mapped drive on my laptop

When you try to assign a drive letter to the volSQL, what error are you getting (popup, system log, etc.)?

-joe

-Joe

Social Media and Community Professional
#IWork4Dell
Get Support on Twitter - @dellcarespro

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runnerpaul
Copper

Re: iSCSI connection not showing volume as mapped drive on my laptop

I don't even have an option to assign a drive letter.

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Moderator
Moderator

Re: iSCSI connection not showing volume as mapped drive on my laptop

Ok, since the volSQL is a system disk (boot disk) you most likely will need to change one or both (attributes disk and/or attributes volume) listed here:

technet.microsoft.com/.../cc732970(v=ws.10).aspx

For the volume, you might have to do all 4 attributes (hidden | readonly | nodefaultdriveletter | shadowcopy)

Do the detail disk and detail volume command first to see what needs to be changed.

DISKPART>list disk

DISKPART>list volume

DISKPART> select disk #

DISKPART>detail disk

DISKPART> select volume #

DISKPART> Detail volume

Diskpart is a bit confusing, so follow the instruction on the link.  The link is part of the Diskpart commands that are available, to see the rest, just click the diskpart heading in the left tree structure.

-joe

-Joe

Social Media and Community Professional
#IWork4Dell
Get Support on Twitter - @dellcarespro

Follow me on Twitter: @joesatdell 

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runnerpaul
Copper

Re: iSCSI connection not showing volume as mapped drive on my laptop

Thanks for the reply DELL-Joe S.

OK. I tried that.

What I found is as follows:

DISKPART> list disk

 Disk ###  Status         Size     Free     Dyn  Gpt

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

 Disk 0    Online          298 GB  1024 KB

 Disk 1    Online         2037 GB  1024 KB

 Disk 2    Online         1024 GB  2048 KB

 Disk 3    Online          500 GB  7168 KB

 Disk 4    Online         2037 GB  1024 KB

 Disk 5    Online         1536 GB  5120 KB

The disks I am concerned with are Disk 2, Disk 3  and Disk 5

Their details are:

DISKPART>  select disk 2

Disk 2 is now the selected disk.

DISKPART> detail disk

EQLOGIC 100E-00 SCSI Disk Device

Disk ID: 000EF950

Type   : iSCSI

Status : Online

Path   : 0

Target : 2

LUN ID : 0

Location Path : UNAVAILABLE

Current Read-only State : No

Read-only  : No

Boot Disk  : No

Pagefile Disk  : No

Hibernation File Disk  : No

Crashdump Disk  : No

Clustered Disk  : No

 Volume ###  Ltr  Label        Fs     Type        Size     Status     Info

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

 Volume 7     E   SQLDATA_New  NTFS   Partition   1024 GB  Healthy

DISKPART> select disk 3

Disk 3 is now the selected disk.

DISKPART> detail disk

EQLOGIC 100E-00 SCSI Disk Device

Disk ID: 000CDF16

Type   : iSCSI

Status : Online

Path   : 0

Target : 1

LUN ID : 0

Location Path : UNAVAILABLE

Current Read-only State : No

Read-only  : No

Boot Disk  : No

Pagefile Disk  : No

Hibernation File Disk  : No

Crashdump Disk  : No

Clustered Disk  : No

 Volume ###  Ltr  Label        Fs     Type        Size     Status     Info

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

 Volume 8     H   SQLLOGS_New  NTFS   Partition    500 GB  Healthy

DISKPART> select disk 5

Disk 5 is now the selected disk.

DISKPART> detail disk

EQLOGIC 100E-00 SCSI Disk Device

Disk ID: 0005BD7E

Type   : iSCSI

Status : Online

Path   : 0

Target : 3

LUN ID : 0

Location Path : UNAVAILABLE

Current Read-only State : No

Read-only  : No

Boot Disk  : No

Pagefile Disk  : No

Hibernation File Disk  : No

Crashdump Disk  : No

Clustered Disk  : No

There are no volumes.

For the volumes I found the following:

DISKPART> list volume

 Volume ###  Ltr  Label        Fs     Type        Size     Status     Info

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

 Volume 0     I                       DVD-ROM         0 B  No Media

 Volume 1     G                       DVD-ROM         0 B  No Media

 Volume 2     F                       DVD-ROM         0 B  No Media

 Volume 3         SYSTEM       NTFS   Partition    100 MB  Healthy    System

 Volume 4     C                NTFS   Partition    111 GB  Healthy    Boot

 Volume 5     D                NTFS   Partition    164 GB  Healthy

 Volume 6         SAMSUNG_REC  NTFS   Partition     22 GB  Healthy    Hidden

 Volume 7     E   SQLDATA_New  NTFS   Partition   1024 GB  Healthy

 Volume 8     H   SQLLOGS_New  NTFS   Partition    500 GB  Healthy

Disk 5 is the one I can't see in My Computer. It appears to have the same settings as Disk 2 and Disk 3 except that it doesn't have a volume. Could this be why I can't see it?

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Moderator
Moderator

Re: iSCSI connection not showing volume as mapped drive on my laptop

Check the following, in the EqualLogic Group manager: ensure that the clone is not set to “read only”.

Then In DiskPart

DISKPART>List disk

DISKPART>Select disk 5

DISKPART>List partition

Do you see any partitions?

Is you see the partition

DISKPART>Select partition #

DISKPART>Detail partition

You should see the volume

Once you see the volume you can assign it a drive letter

-joe

-Joe

Social Media and Community Professional
#IWork4Dell
Get Support on Twitter - @dellcarespro

Follow me on Twitter: @joesatdell 

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