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NetApp AltaVault Cloud Integrated Storage Administration Guide
61
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Configuring alarm settings
Configuring system administrator settings
2.
Under Enable Alarms, complete the configuration as described in this table.
Alarm
Description
Admission Control
Enables an alarm if the AltaVault reaches the maximum number of connections that can be made to
the AltaVault.
By default, this alarm is enabled.
Cloud Bucket
Consistency
Enables an alarm if there is data in the cloud, but the AltaVault data store is empty. To clear this
alarm, enable replication and recovery to ensure that the cloud storage is synchronized with the
data store.
This alarm occurs when you perform disaster recovery without specifying the correct parameters.
Cloud Bucket Disparity
Enables an alarm when the cloud bucket that the AltaVault is trying to connect to is being used by
another AltaVault appliance. This alarm prevents corruption of the files in the cloud.
Cloud Bucket Over
Capacity
Enables an alarm when the cloud bucket that the AltaVault connects to has exceeded the licensed
cloud capacity.
CPU Utilization
Enables an alarm if the average and peak thresholds for the CPU utilization are exceeded. When an
alarm reaches the rising threshold, it is activated; when it reaches the lowest or reset threshold, it is
reset. After an alarm is triggered, it is not triggered again until it has fallen below the reset
threshold.
If the CPU utilization alarm triggers when the AltaVault is under a heavy load, you can ignore it.
By default, this alarm is enabled.
Rising Threshold - Specify the rising threshold. When an alarm reaches the rising threshold, it is
activated. The default value is 95%.
Reset Threshold - Specify the reset threshold. When an alarm reaches the lowest or reset threshold,
it is reset. After an alarm is triggered, it is not triggered again until it has fallen below the reset
threshold. The default value is 70%.
Data Integrity Error
Enables an alarm when inconsistency in the data stored on the disk is detected.
Datastore Eviction
Indicates that the system has detected an issue with datastore eviction.
The alarm triggers when the appliance starts evicting data from the local disk cache and the age of
the evicted data is relatively young. If disk space runs low, the appliance starts evicting cached data
that has not been used recently, keeping only the most recent data.
The AltaVault keeps statistics about how old the evicted data is (this is the average evicted age).
Usually, only old data is evicted. However, the appliance might be experiencing a large workload
where more recent data needs to be evicted from the appliance to make space for incoming data.
This causes the average evicted age to decrease, and when it goes below a certain threshold, the
average evicted age alarm triggers. This alarm is an anomalous event, signaling that the appliance
is handling a much larger workload than expected.
This alarm is useful in detecting whether the appliance is undersized relative to your normal
workload. If the alarm is constantly triggered, then you should consider increasing
AltaVault’s
disk cache.
Datastore Low Space
Indicates that the local data store is running out of space and the eviction process on the AltaVault
is unable to run at a sufficient pace to create space on the disk cache.
This alarm might also trigger when replication is too slow.
View the Eviction Optimization report (choose Reports > Eviction) to determine how much disk
cache is available.
Summary of Contents for AltaVault AVA400
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