those volumes you delete are not being used. See ”Deleting a Storage Volume” on page 327 for more information.
•If you do not see a storage pool, verify that you have obtained all element details from the storage system. See ”Step 1 - Discover Switches” on page 31 for more information.
6.Click Next.
7.Select a volume capability. The volume capabilities listed depend on the type of storage system. For example, if an EMC Symmetrix storage system is selected, Pool default settings are displayed in the field. If an Engenio storage system is selected, the following is displayed.
•<Default> - Provides the default cache read ahead multiplier and the default segment size for the storage system.
•File System (Typical) - Provides a cache read ahead multiplier of 1 with a segment size of 64 KB.
•Database - Provides a cache read ahead multiplier of 0 with a segment size of 64 KB.
•Multimedia - Provides a cache read ahead multiplier of 8 with a segment size of 128 KB.
•Custom - Lets you customize the cache read ahead multiplier and the segment size.
NOTE: (HDS only) Under the “Volume Capabilities Tab”, leave the default selection “<default>” selected and click the “Finish” button. Once the settings have been made, you see a new volume called a Group Volume in the list of unmapped volumes. Technically this is not a LUSE yet as it has not been assigned to a port; it is a logical grouping within the management server. Think of it as a place holder. From this point you can select the new group volume and assign it to a port. Once the volume has been assigned to a port, the management server makes the changes to the array and creates the LUSE. See Table on page 334 and Table on page 329 for information on how to create a LUN.
For information about the volume capability, refer to the documentation accompanying the storage system.
8.(Engenio only) If you selected the Custom option, do the following:
a.Type the cache read ahead multiplier (0 to 65535 bytes) in the Cache read ahead multiplier field.
A cache read ahead multiplier copies additional data blocks into the cache while it is reading and copying
b.Select a segment size from the
9.Click Finish.
Deleting a Storage Volume
When you delete a storage volume on an HDS or Symmetrix storage system, the software marks the deleted volume as hidden in the CIM repository, thus, making it unassigned, instead of being deleted. The software keeps track of the “deleted volumes.”
Keep in mind the following:
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