Oracle ZFS Storage Appliance: How to Match a ZFSSA Exported iSCSI LUN Mounted on Windows 2012

Asset ID:	1-71-1668904.1
Update Date:	2018-01-05
Keywords:

Solution Type Technical Instruction Sure

Solution 1668904.1 : Oracle ZFS Storage Appliance: How to Match a ZFSSA Exported iSCSI LUN Mounted on Windows 2012

Applies to:

Sun ZFS Storage 7320 - Version All Versions and later
Sun Storage 7110 Unified Storage System - Version All Versions and later
Sun Storage 7210 Unified Storage System - Version All Versions and later
Sun ZFS Storage 7120 - Version All Versions and later
Sun Storage 7310 Unified Storage System - Version All Versions and later
7000 Appliance OS (Fishworks)

Goal

How can I map the iSCSI LUN which I created on the ZFS SA to Windows ?

In my scenario I have multiple iSCSI LUNs with the same size.

Solution

We will first identify the LUN from ZFS SA and it's LUN number:

From ZFS SA:
(Manually assigned LUN number)

lbl-789:shares default> select iscsi0 get lunumber
lunumber = 0

(Auto assigned LUN number)

lbl-789:shares default> select iscsi1 get lunumber
lunumber = auto
lbl-789:shares default> select iscsi1 get assignednumber
assignednumber = 1

From the above, we have 2 iSCSI luns.

iscsi0 with LUN number 0

iscsi1 with LUN number 1

From Windows, we have 3 disks. 2 of which are the iSCSI LUNs from the ZFS SA.

Below shows that we have 2 iSCSI LUNs mapped to the Windows 2012 from a single iqn target.

PS C:\> iscsicli reporttargetmappings
Microsoft iSCSI Initiator Version 6.2 Build 9200

Total of 1 mappings returned
    Session Id             : fffffa800766f020-4000013700000002
    Target Name            : iqn.1986-03.com.sun:02:368dc085-d241-cabd-9f3e-e97993b8a0bb
    Initiator              : ROOT\ISCSIPRT\0000_0
    Initiator Scsi Device : \\.\Scsi3:
    Initiator Bus          : 0
    Initiator Target Id    : 0
        Target Lun: 0x0 <--> OS Lun: 0x0
        Target Lun: 0x100 <--> OS Lun: 0x1

The operation completed successfully.
PS C:\>

We can list the disks using DiskPart

DISKPART> list disk

Disk ### Status Size Free Dyn Gpt
-------- ------------- ------- ------- --- ---
Disk 0 Online 30 GB 0 B
Disk 1 Online 1024 MB 1024 MB
Disk 2 Online 1024 MB 1024 MB

Select each disk and use the detail command to shows the properties.

DISKPART> select disk 1

Disk 1 is now the selected disk.

DISKPART> detail disk

SUN Sun Storage 7000 SCSI Disk Device
Disk ID: 00000000
Type : iSCSI
Status : Online
Path : 0
Target : 0
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.

DISKPART> select disk 2

Disk 2 is now the selected disk.

DISKPART> detail disk

SUN Sun Storage 7000 SCSI Disk Device
Disk ID: 00000000
Type : iSCSI
Status : Online
Path : 0
Target : 0
LUN ID : 1
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.

From the above output - we have ...

Disk 1 with LUN ID: 0

Disk 2 with LUN ID: 1

With the LUN number information from both ZFS SA and Windows 2012.

We can match the Disk 1 in Windows 2012 to iscsi0 from ZFS SA.

And Disk 2 in Windows 2012 to iscsi1 from ZFS SA.

References

<NOTE:1398581.1> - Sun Storage 7000 Unified Storage System: How to Troubleshoot iSCSI Problems

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