HP Storage Essentials V5.1 User Guide First Edition (T4283-96026, August 2006)

Path Provisioning420
• Mapped - There are two types of mapped volumes:
• Masked - The volume is exposed to the storage port and to the host.
• Unmasked - The volume is exposed to the storage port, but not to the host.
• Unmapped – The volume is not exposed to the storage port. The management server puts
all unmapped volumes in this category when it first discovers an array.
• Free Extents – Available free extents that can be used to create a meta volume. You can
create meta volumes on EMC Symmetrix and LUSE on HDS storage systems. To create a
meta volume or LUSE, select multiple free extents under the Free Extents node in the Volume
pane. Select multiple LDEVS from the Free Extents menu by holding down the shift key on
your keyboard and selecting free LDEVS. When you select free extents, they must of the
same type. For example, on Symmetrix, you cannot select a mirrored volume and a BCV
(business continuous volume) to create a meta volume.
When you first discover a storage system, no free extents are displayed. This is because the
management server puts all unmapped volumes into the “unmapped” category for the list of
volumes by default. To move a volume to the free extent node, delete the unmapped volume.
When the volume is deleted, it is moved to the free extents node. The free extents category
is used internally by the management server. See ”Deleting a Storage Volume” on
page 361 for more information.
Keep in mind the following:
• Make sure the free extents you select are not being used. Data on the free extents becomes
unusable when a meta volume is created.
• You can narrow the type of volumes displayed in the Volumes pane by using the Volume
Customize Dialog ( ), located above the Volumes pane. See ”Host Customize Dialog” on
page 448.
• If the LUN has already been selected and Step 4 is clicked, skip this step or click the
button.
8. Click Step 3.
9. Click the Create Job button.
The job is added to the bottom pane.
10.Do one of the following:
• If you want the job to execute now, select the job and then click the Execute Job ( ) button.
• If you want the job to execute at a later time, schedule the job as described in the topic,
”Scheduling Provisioning Jobs” on page 443.
LUN Security
Keep in mind the following:
• If you have options still selected from a previous job, just clear the options you do not want in
your next job. For example, assume you just mapped a volume to a port. Now you want to map
the a different volume on the same host to another port. Just clear the Volume and LUN panes.
To clear a pane, click the button.