HP 3000 Enterprise Virtual Array - Manual (Page 32)

Storage System Description
32 Enterprise Virtual Array 3000 User Guide
Operating Tips and Information
This section contains general information on operating the Enterprise Virtual
Array 3000. You should familiarize yourself with these topics before operating the
storage system. Understanding these topics and following the recommended
procedures will contribute to the successful and trouble-free operation of your
storage system.
Minimum Disk Group Sizes
A disk group must contain no fewer than eight disks. The Command View EVA
default is four disks. Do not use this default. You must specify a minimum of
eight disks.
If you remove disks and the result is a disk group with fewer than eight disks,
reduced functionality could result. If you discover a disk group with fewer than
eight disks, restore the disks necessary so that the disk group has eight disks.
Contact your HP authorized service representative for assistance, if necessary.
Operating an HSV100 Controller at or Near Storage Limit
When operating the HSV100 controller at or near its available storage limit, use
the high water threshold warnings to alert you when more storage must be added
to the system.
Secure Path Version
The Enterprise Virtual Array 3000 should always be operated with the supported
version of Secure Path. Supported versions of Secure Path are listed in the
Enterprise Virtual Array 3000 Release Notes.
Dynamic Volume Expansion
If you need to increase the capacity of an existing virtual disk, use dynamic
volume expansion to increase the capacity. The host operating system must
support dynamic volume expansion.