HP 12000 HP StorageWorks 12000 Gateway Virtual Library System User Guide (AH81 - Page 39

Virtual Disks, ACTIVE, Presentation, Write Protect, Preferred path/mode, Path A-Failover only, Present

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3. Present the LUNs: CAUTION: Present only the disks that you wish to use with the VLS Gateway because existing data will be destroyed during storage pool configuration. a. In Command View EVA, in the Storage tab navigation tree, select the EVA for the VLS Gateway storage system, Virtual Disks, the disk name that you want to present, then ACTIVE under that disk. b. Select the Presentation tab. c. Ensure that Write Protect is set to No. d. Ensure that the Preferred path/mode is set to either Path A-Failover only or Path B-Failover only (Figure 10). NOTE: Set the Preferred path/mode for half of the disks to Path A-Failover only, and to Path B-Failover only for the other half of the disks. This balances the data traffic across both A and B controllers. For more information on data traffic balancing, see "Array Dual Pathing" on page 141. Figure 10 Vdisk Active Member Properties window . e. Click on Present, then select the VLS Gateway host (just created) on the Present Vdisk screen on the status pane. f. Click on Present Vdisk. g. The Operation Succeeded message displays on the status pane. Click OK. h. Repeat these steps for each disk to present to the VLS. HP StorageWorks 12000 Gateway Virtual Library System User Guide 39

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3.
Present the LUNs:
CAUTION:
Present only the disks that you wish to use with the VLS Gateway because existing data will
be destroyed during storage pool configuration.
a.
In Command View EVA, in the Storage tab navigation tree, select the EVA for the VLS
Gateway storage system,
Virtual Disks
, the disk name that you want to present, then
ACTIVE
under that disk.
b.
Select the
Presentation
tab.
c.
Ensure that
Write Protect
is set to
No
.
d.
Ensure that the
Preferred path/mode
is set to either
Path A-Failover only
or
Path B-Failover
only
(
Figure 10
).
NOTE:
Set the
Preferred path/mode
for half of the disks to
Path A-Failover only
, and to
Path B-Failover only
for the other half of the disks. This balances the data traffic across
both A and B controllers. For more information on data traffic balancing, see
“
Array
Dual Pathing
”
on page 141.
Figure 10 Vdisk Active Member Properties window
.
e.
Click on
Present
, then select the VLS Gateway host (just created) on the
Present Vdisk
screen
on the status pane.
f.
Click on
Present Vdisk
.
g.
The
Operation Succeeded
message displays on the status pane. Click
OK
.
h.
Repeat these steps for each disk to present to the VLS.
HP StorageWorks 12000 Gateway Virtual Library System User Guide
39