HP 12000 HP 12200 Gateway Virtual Library System User Guide (BW403-10001, June - Page 26

Managing VLS12200 Gateway Capacity, Delete external LUNs from the VLS Gateway configuration. See

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Page 26 highlights

i. Continue to add ports until all of the ports on the VLS Gateway are added and are listed on the Host Properties screen in the status pane. 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 5 (page 26)). 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" (page 103). Figure 5 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. NOTE: If needed, these disks can be unpresented. See Deleting Array LUNs. If you unpresent a LUN, you must then reconfigure the LUN numbering for all LUNs on the VLS Gateway that follow the unpresented LUN in sequential numbering. Managing VLS12200 Gateway Capacity There are several ways to manage the capacity of your Gateway system: • Add external LUNs to the VLS Gateway configuration. See Discovering Array LUNs. • Delete external LUNs from the VLS Gateway configuration. See Deleting Array LUNs. 26 Storage Configuration

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i.
Continue to add ports until all of the ports on the VLS Gateway are added and are listed
on the
Host Properties
screen in the status pane.
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 5 (page 26)
).
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” (page 103)
.
Figure 5 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.
NOTE:
If needed, these disks can be unpresented. See
Deleting Array LUNs
. If you
unpresent a LUN, you must then reconfigure the LUN numbering for all LUNs on the VLS
Gateway that follow the unpresented LUN in sequential numbering.
Managing VLS12200 Gateway Capacity
There are several ways to manage the capacity of your Gateway system:
•
Add external LUNs to the VLS Gateway configuration. See
Discovering Array LUNs
.
•
Delete external LUNs from the VLS Gateway configuration. See
Deleting Array LUNs
.
26
Storage Configuration