HP StorageWorks 12000 Gateway Virtual Library System User Guide (AH814-96018, December 2012)

Deleting Array LUNs
CAUTION: Deleting an EVA LUN that is part of an existing storage pool will result in the loss of
all cartridge data for that storage pool.
To remove a LUN from the device:
1. Unpresent the LUN to the VLS (see instructions below) or delete the LUN from the external
array.
2. Restart emulations or reboot the device (see Restarting VLS Device Emulations (page 106) or
Rebooting the System (page 74)).
3. Discover unconfigured storage (see Discovering Array LUNs). This deletes the removed LUNs
from the configuration.
To unpresent a LUN:
1. In Command View EVA, 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.
2. Select the Presentation tab for the ACTIVE Vdisk.
3. Click on the Unpresent button.
4. Select the disk to remove from the host (Figure 7 (page 28)).
Figure 7 Unpresent Host(s) window
5. Click on Unpresent host(s).
6. Click OK from the confirmation dialog box.
7. Click OK under Operation Succeeded in the status pane.
8. If there is a break in numbering of the remaining LUNs, LUN numbers after the break must be
reconfigured. See Multi-node Setup (page 22) for detailed instructions.
CAUTION: LUN numbering must be sequential with no gaps. Gaps in LUN numbering will
prevent the VLS Gateway from recognizing any nodes with any LUNs after the gap. For
example, if LUN numbering is 0, 1, 2, 4, 5, the VLS Gateway will not recognize LUNs 4 and
5.
28 Storage Configuration