This software supports performance management functionality for Disk storage systems. This functionality enables users to get details about the operation and load statuses of devices. However, this software does not support performance management functionality in relation to the ETERNUS Disk storage system SDV or FibreCAT SX Disk storage system.
When a user gives an instruction for performance management of a target device from a Storage System Management GUI window, the performance management unit issues SNMP get periodically through a LAN to devices to obtain performance information, and it saves the information as performance data on the Express manager server. This software can output performance information up to 1 hour before by the storageadm perfdata (Performance information operation command) and manages the device.
To conduct performance monitoring, sufficient disk space is required on the administrative server for performance data storage. Make sure that sufficient disk space is ensured referring to "2.1 Hardware conditions".
Note
Do not execute performance monitoring for a single device from more than one administrative server(*) at the same time.
* The Express manager servers, the ETERNUS SF Storage Cruiser administrative servers, or the Systemwalker Resource Coordinator administrative servers.
The performance management functionality always starts up when the Express manager server starts up. For devices in which performance management settings have been configured, performance information collection starts in the background. Accordingly, performance information is collected regardless of whether Storage System Management GUI window display. To stop performance information collection, execute performance management stop processing.
