By default, low disk space alert is based on the low watermark level. However, if you set the Notify when library will run out of space in option to a value greater than 0, you receive a low disk space alert when the disk library is about to run out of space (measured in days).
Note
Read-only mount paths, hidden and disabled libraries will be ignored while sending out this alert.
You can calculate the low disk space to set the Notify when library will run out of space in option by applying the following formula:
(Free Disk space – Reserve space)/(Average amount of data backed up over the last 30 days) = Number of days when the library will be full
Example:
The total disk space is 100GB.
Reserve space is 20GB.
Low water mark is set at 10%.
Average unit of data backed up in last 30 days is 10GB per day.
(100GB-20GB)/10 GB = Number of days when the library will be full.
80/10 = 8 days before all the free disk space is consumed.
If you want to be alerted 2 days in advance about the low disk space, then set the Notify when library will run out of space in value to 2 days.
The following warning message is generated when only 20GB of free disk space is available.
Failure Reason: At the current usage rate of 10GB per day, library <library_name > with free space 20GB will run out of space in 2 days.
Note
If you configure a low disk space alert, you do not receive notifications for low watermark or warning watermark.
To configure the low disk space alert based on number of days, you must set the Notify when library will run out of space in option, and then configure the alert notification.
Configuring the Low Disk Space Alert
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In the CommCell Console, navigate to Storage Resources > Libraries.
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Right-click the library for which you need to configure alert, and then click Properties.
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On the Space Management tab, set the Notify when library will run out of space in to a value greater than 0.
Note
If the value is set to 0, then the alert is generated when the low watermark is reached.
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Click OK.
Configuring the Low Disk Space Alert Notification
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On the ribbon in the CommCell Console, click the Home tab, and then click Alert.
The Alerts dialog box appears.
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Click Add.
The Add Alerts Wizard appears.
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Configure the alert according to your needs. As you configure the alert, make sure that the following options are set:
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On the General Information page, set Category = Media Management and Type = Library Management.
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On the Threshold and Notification Criteria Selection page, select the Insufficient Storage check box.
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Once you configure the alert completely, click Finish.
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Click OK.