User's Manual

Provisioning Manager346
Issues Specific to Engenio Storage Systems
This section describes the following for Engenio:
• ”Creating and Deleting Storage Pools” on page 346
• ”Creating and Deleting Storage Volumes” on page 346
• ”Creating a LUN” on page 346
Creating and Deleting Storage Pools
For Engenio, a storage pool is the same as a volume group. Create at least one storage pool before
provisioning a volume. When you delete a storage pool on an Engenio storage system, all the
volumes for the volume group are deleted, including the placeholder volume.
Creating and Deleting Storage Volumes
Keep in mind the following when you create a volume on an Engenio storage system:
• Make sure you select a volume group that can accommodate the requested size for the new
volume.
• You can create volumes from existing free extent areas within a volume group.
• The volume capabilities, their cache read ahead multiplier and segment size are shown in the
following table:
• No volume-to-LUN masking is done by default.
• The volume is assigned to a Host not a Host Group. Host and Host Groups are not viewable in
the software, and the LUN number may change when it is mapped to a host if that host already
has a volume with the LUN number.
IMPORTANT: The management server creates a placeholder volume when a storage pool is
created. This placeholder volume is not viewable in the management server, but it might be
viewable in other storage tools. Do not delete this placeholder volume.
Creating a LUN
After a volume is assigned to a storage system port, the management server lists the storage system
port assigned to each port on the controller. The LUN information is shown on four lines (For two
Table 51 Volume Usage
Volume
Capability
Cache Read Ahead
Multiplier
Segment Size
File and
Default
1 64 KB
Database 0 64 KB
Multimedia 8 128 KB
Custom 0 to 65,535 8 KB, 16 KB, 32 KB, 64 KB, 128 KB, 256 KB