APTARE IT Analytics Technical Notes
- Enabling Oracle's Transparent Data Encryption (TDE)
- Array Performance Statistics Technical Note
- EMC Symmetrix Back-end Director Performance
EMC Symmetrix Storage Group Performance
Table: EMC Symmetrix Storage Group Performance
Metric |
Description |
---|---|
Host MBs | Cumulative number of host MB per second reads/writes for the storage group. |
Host MB Reads | Cumulative number of host MB per second reads by the storage group. |
Host MB Written | Cumulative number of host MB per second written by the storage group. |
Read Response Time | The average time taken by the Symmetrix array to serve one read I/O for this group. |
Write Response Time | The average time taken by the Symmetrix array to serve one write I/O for this group. |
Read Miss Response Time | The average time taken by the Symmetrix array to serve one read miss I/O (not found in cache) for this group. |
Write Miss Response Time | The average time taken by the Symmetrix array to serve one write miss I/O (not found in cache) for this group. |
Percent Hit | The % of I/O operations that were satisfied immediately from cache. |
Allocated Capacity | The capacity of the storage group, in GB. |