Top
ETERNUS SF Express V15.0 Operation Guide

4.5.1 Threshold monitoring

This function monitors the threshold values for the Thin Provisioning Pool capacity used.

Threshold values and Threshold monitoring status

The values of the "Caution threshold value" and the "Warning threshold value" set for each Thin Provisioning Pool and the Threshold monitoring status are displayed. The "Caution threshold value" and the "Warning threshold value" are prepared at the disk storage system, and are the threshold values for Thin Provisioning Pool capacity used.

Threshold value settings

The initial values for the "Caution threshold value" and the "Warning threshold value" are set by the disk storage system when a Thin Provisioning Pool is created. If required, change the settings for the capacity threshold values.

Procedure for setting threshold values

Set the threshold values by using the Web Console.

Action to take when threshold values are exceeded

If threshold values are exceeded, then follow the procedures below:

  • Detection of status change

    When a threshold value is exceeded, the product displays an SNMP Trap in the event log, which notifies the change in Thin Provisioning Pool status at the disk storage system.

  • Refreshing

    After checking the displayed event, perform [Reload Conf.] on the applicable storage system.

  • Checking the status of the Thin Provisioning Pool

    Start the Thin Provisioning Pool monitor window and check the Thin Provisioning Pool status. Extend disks or take other action in accordance with the exceeded threshold values.

See

If the SNMP Trap that notifies of changes in the Thin Provisioning Pool status is not received due to packet loss or other reason, then the product detects the change by polling the Thin Provisioning Pool information of the disk storage system. Since the polling interval is one hour, the time from status change to detection is within one hour. The polling intervals can be customized. For details, refer to "Polling Service Setting File" in the "ETERNUS SF Storage Cruiser Operation Guide".

Information

Even if capacity reaches "Caution threshold value" which is set for each LogicalVolume, SNMP trap will not be sent. "Caution threshold value" for LogicalVolume is a threshold value for unallocated capacity of LogicalVolume which is at the disk storage system.