Creating external volume groups

Global Active Device for VSP One Block

Version

10.5.x

Audience

anonymous

Part Number

MK-23VSP1B011-10

ft:lastEdition

2026-05-04

Create external volume groups for the quorum disk to map the disk on the external storage system to the primary and secondary storage systems.

Verify that the volumes in the external storage system are formatted. Then create external volume groups in the primary and secondary storage systems.
Use the raidcom discover lun -port command to verify that the same E_VOL_ID_C value (volume identifier included in the SCSI Inquiry command of the external volume) is displayed for the primary and secondary storage systems.

For details about creating external volume groups, see the Universal Volume Manager User Guide for VSP One Block.

Search for information about the external storage system port that is connected to port (CL5-A) on the primary storage system.

raidcom discover external_storage -port CL5-A -IH0
PORT   WWN               PM  USED  Serial#  VENDOR_ID PRODUCT_ID
CL5-A  50060e8007823520  M   NO    833333    HITACHI VSP One B24

Display the LU that is defined to external storage system port (50060e8007823520) that is connected to primary storage system port (CL5-A). Check the LU number, and note the value shown in the E_VOL_ID_C field.
```
raidcom discover lun -port CL5-A -external_wwn 50060e8007823520 -IH0
PORT   WWN              LUN  VOL_Cap(BLK)  PRODUCT_ID  E_VOL_ID_C
CL5-A  50060e8007823520   0      61440000  OPEN-V      HITACHI 500308235AAAA
```
Map the LU (0) that is defined to the external storage system port (50060e8007823520) that is connected to the primary storage system port (CL5-A). Specify 1 for the path group ID, and specify 1-1 for the external volume group number.
```
raidcom add external_grp -path_grp 1 -external_grp_id 1-1 
-port CL5-A -external_wwn 50060e8007823520 -lun_id 0 -IH0
```

Confirm that asynchronous command processing has completed.

raidcom get command_status -IH0
HANDLE   SSB1    SSB2    ERR_CNT        Serial#     Description
00c3        -       -          0         811111     -

Search for information about the external storage system port that is connected to port (CL5-C) on the secondary storage system.

raidcom discover external_storage -port CL5-C -IH1
PORT     WWN                PM  USED   Serial#  VENDOR_ID PRODUCT_ID
CL5-C    50060e8007823521   M   NO     833333    HITACHI VSP One B24

Display the LU that is defined to external storage system port (50060e8007823521) that is connected to secondary storage system port (CL5-C). Check the LU number, and confirm that the E_VOL_ID_C field displays the same value as in step 2.
```
raidcom discover lun -port CL5-C -external_wwn 50060e8007823521 -IH1
PORT     WWN              LUN  VOL_Cap(BLK)  PRODUCT_ID  E_VOL_ID_C
CL5-C    50060e8007823521   0      61440000  OPEN-V      HITACHI 500308235AAAA
```
Map the LU (0) that is defined to external storage system port (50060e8007823521) that is connected to secondary storage system port (CL5-C). Specify 1 for the path group ID, and specify 1-2 for the external volume group number.
```
raidcom add external_grp -path_grp 1 -external_grp_id 1-2 -port CL5-C 
-external_wwn 50060e8007823521 -lun_id 0 -IH1
```

Confirm that asynchronous command processing has completed.

raidcom get command_status -IH1
HANDLE   SSB1    SSB2    ERR_CNT        Serial#     Description
00c3        -       -          0         822222     -

Check command and output examples

On the primary storage system, display information about the external path to the volume in the external storage system.

raidcom get path -path_grp 1 -IH0
PHG GROUP STS CM IF MP# PORT   WWN                 PR LUN PHS  Serial# PRODUCT_ID LB PM 
  1 1-1   NML E  D    0 CL5-A  50060e8007823520     1   0 NML    833333 VSP One B20 series  N  M

On the secondary storage system, display information about the external path to the volume in the external storage system. Confirm that the external storage system information is correct, including serial number, model, and WWN, and confirm that the path status and volume status are normal.
```
raidcom get path -path_grp 1 -IH1
PHG GROUP STS CM IF MP# PORT   WWN                 PR LUN PHS  Serial# PRODUCT_ID LB PM 
  1 1-2   NML E  D    0 CL5-C  50060e8007823521    1   0 NML    833333 VSP One B20 series  N  M 
```