Express supports function of performance management for Disk storage systems.
This function enables users to get details about the operation and load status of disk storage systems. However, Express does not support function of performance management about SDV and SDPV of ETERNUS Disk storage system.
When a user gives an instruction for performance management of a disk storage system from the Express Web GUI, the performance management device issues SNMP Trap periodically through a LAN to the disk storage system to obtain performance information, and it saves the information as performance data on the Express Manager server. On the Express Web GUI, 24-hour performance information can be output and with "D.3 storageadm perfdata (Command for managing performance information)", one-hour or 24-hour performance information can be output. Using them can manage disk storage systems.
To conduct performance monitoring, sufficient disk space is required on the management server for performance data storage. Make sure that sufficient disk space is ensured referring to "2.1 Hardware conditions".
This function is for ETERNUS Disk storage system only.
Note
Do not execute performance monitoring for a single server from more than one management server(*) at the same time.
* Any of Express Manager server, ETERNUS SF Storage Cruiser administrative server, or Systemwalker Resource Coordinator server.
The performance management functionality always starts up when the Express Manager server starts up. For disk storage systems, in which performance management settings have been configured, performance information collection starts in the background. Accordingly, performance information is collected regardless of whether the Express Web GUI is displayed. To stop performance information collection, stop performance management processing.
