Threshold Monitoring; Capacity Management - Fujitsu ETERNUS DX60 Operation Manual

Threshold Monitoring

This function monitors the threshold values for the Thin Provisioning Pool capacity used. It can also change the threshold values.

Capacity Management

This function displays the changes in capacity used for the Thin Provisioning Pool graphically.
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:
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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.
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Refreshing
After checking the displayed event, perform [Reload Conf.] on the applicable storage system.
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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. Refer
to "Polling Service Setting File" in the
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.
4.5.2 Capacity Management
This function displays the Thin Provisioning Pool Capacity and its changes in the capacity used graphically to grasp the changes in
the capacity used for the Thin Provisioning Pool.
This enables users to grasp the period to expand the size of the physical disk for the Thin Provisioning Pool, or to review the threshold
setting according to the situation.
ETERNUS SF Storage Cruiser Operation Guide for details.
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