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

174 HP StorageWorks 2000 Family Modular Smart Array reference guide • August 2008
3. Select the volume whose statistics you want to view.
Statistics shown are based on host-side activity in the interval since the page was
last refreshed. The page automatically refreshes at a 60-second interval.
Real-Time Statistics for Volumes
As an Advanced user, you can view the overall performance of volumes and related
ports. This information is updated at a two-second interval.
■ The Select A Virtual Disk and Volume Menu panels show all virtual disks in the
system and the selected virtual disk’s volume name, size, and LUN.
■ The Statistics For Volume panel shows the IOPS bandwidth in Mbyte per second,
the number of read and write operations, and the number of sectors (512-byte
blocks) read and written. All statistics are based on host-side activity.
■ The Port Statistics For Selected Volume panel shows the activity for the volume
for each port connected to a host. Queue depth is the number of host-originated
commands currently queued for the port. Last I/O size is the size of the last host
access in sectors. An operation that is not a read or write sets this value to zero.
To view real-time statistics for volumes:
1. Select Monitor > Statistics > Real-Time Volume Stats.
2. Select a virtual disk.
3. Select the volume whose statistics you want to view.
Disk Drive Error Statistics
As an Advanced user, you can view the following disk drive error statistics, which
are maintained by the controller for each drive. You can clear all error statistics
except for Bad Block List Size.
Field Description
SMART Event Count The number of SMART (Self-Monitoring Analysis and
Reporting Technology) events that the drive recorded.
These events are often used by the vendor to determine
the root cause of a drive failure. Some SMART events
may indicate imminent electromechanical failure.