EMC Symmetrix Device Groups Performance

Table: EMC Symmetrix Device Groups Performance

Metric	Description
Host Reads	The number of host read operations performed each second by the group.
Host Writes	The number of host write operations performed each second by the group.
Host Read Hits	The number of host read operations performed each second by the group that were immediately satisfied from cache.
Host Write Hits	The number of host write operations performed each second by the group that were immediately satisfied from cache.
Host Read Misses	The number of host read operations performed each second by the group that were not satisfied from cache.
Host Write Misses	The number of host write operations performed each second by the group that were not satisfied from cache.
Host MB Reads	The cumulative number of host reads by the group, in MB per second.
Host MB Written	The cumulative number of host writes by the group, in MB per second.
Read Response Time	The average time taken by the Symmetrix array to serve one read I/O operation for this group.
Write Response Time	The average time taken by the Symmetrix array to serve one write I/O operation for this group.
WP Count	The number of tracks that are write-pending for the group.