•Read
•Write
•Write
•Write
•Average Queue
HP EVA physical disk
The physical disk performance object reports information on each physical disk on the system that is or has been a member of a disk group. These counters record all the activity to each disk and include all disk traffic for a host data transfer, as well as internal system support activity. This activity includes metadata updates, cache flushes, prefetch, sparing, leveling, snapclone and snapshot support, and redundancy traffic. Metrics for each controller are reported separately. Therefore, the total activity to each disk is the sum of activity to both controllers. The ID of each disk is from an internal representation and is not definitive for disk identification.
The counters are:
•Drive Queue
•Drive
•Read
•Read
•Read
•Write
•Write
•Write
HP EVA physical disk group
The HP EVA physical disk group object provides information about physical disk activity per disk group. For each disk group, metrics are reported that represent the averages of various counters across all the disks in the disk group. The counters record all activity to the disks, including traffic for host data transfers and internal system support. This activity includes metadata updates, cache flushes, prefetch, sparing, leveling, snapclone and snapshot support, and redundancy traffic such as parity reads and writes or mirror copy writes. Each controller’s activity is reported separately, so the total activity to each disk group is the sum of both controllers’ activity.
For each counter, the results are an average of all disks in the disk group.
Using the graphical user interface | 91 |