HP StorageWorks 2000 Modular Smart Array Reference Guide (481599-003, August 2008)

Chapter 5 Monitoring System Status 177
The following information is displayed about spares and unused space.
The bottom of the page shows the total disk space and a color-coded bar
representing the relative sizes of each space category.
To view disk usage:
● Select Monitor > Statistics > Disk Usage.
Resetting Statistics
You should reset statistics when you are monitoring performance, when you change
how you are using volumes, or when an event occurs that alters virtual disks and
volumes, including additions, deletions, and component failures.
As an Advanced user, you can reset to zero either or both of the following:
■ All virtual disk and volume statistics
■ All controller disk-drive error statistics, which are maintained by the controller
for each disk drive
To reset statistics for specific drives only, see “Disk Drive Error Statistics” on
page 174.
Note – You cannot reset port queue depth and last I/O size, which always show the
current values.
Field Description
Virtual Disk Spare Space Space on spare disk drives that are designated for use by a
specific virtual disk.
Global Spare Space Space on spare disk drives that are designated for use by
any virtual disk.
Available Drive Space Space on unassigned disk drives that are available for
creating new virtual disks, for expanding virtual disks, or
for use as spares.
Other space This category is displayed if a disk drive was previously a
member of a virtual disk and contains old metadata,
making it a Leftover. When the metadata is cleared, the
drive becomes Available. See “Clearing Metadata From
Leftover Disk Drives” on page 136.