About System Settings : About alarm parameters
  
About alarm parameters
Alarm settings are under Settings > System Settings: Alarms.
Alarms have rising and reset thresholds. 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.
Backup Integration
Enables an alarm and sends an email notification if the backup-integration module encounters an error. By default, this alarm is enabled.
Block-disk
Enables an alarm and sends an email notification if the block-disk module encounters an error. By default, this alarm is enabled.
Core Disaster Recovery
Enables, by default, an alarm and sends an email notification if the system encounters any of these issues with replication:
The Journal LUN size is not large enough to support the configured replica LUNs.
Replication latency to the secondary data center is over 150 ms.
Replication status for one or more LUNs is “suspended.”
Any type of corruption is detected on the Journal LUN for any of the replica LUNs.
No connections to the peer data center.
The Journal LUN is not found on the storage array because it was accidentally unmapped from the backend, or the connection to the storage array was lost.
Data mismatch is detected on any of the replica LUNs.
CPU Utilization
Enables an alarm and sends an email notification if the average and peak threshold for the CPU utilization is exceeded. For rising and reset thresholds, specify a whole number to represent a percent of CPU utilization. Enabled by default, with a rising threshold of 90% and a reset threshold of 70%.
Disk Full
Enables, by default, an alarm and sends an email notification if the disk space is full. Select one or more of these system partition:
Partition "/boot" Full
Partition "/bootmgr" Full
Partition "/config" Full
Partition "/data" Full
Partition "/var" Full
Edge Service
Enables an alarm and sends an email notification if Core loses connection with one of its configured Edges. Enabled by default.
Hardware
Enables, by default, an alarm and sends an email notification if one or more hardware failures occur. This alarm setting also enables you to select one or more types of hardware failure (fan error, memory error, and so on).
Other Hardware Error
Indicates that the system has detected a problem with the hardware. The alarm clears when you add the necessary hardware, remove the nonqualified hardware, or resolve other hardware issues. The hardware error alarm triggers when the appliance does not have enough disk, memory, CPU cores, or NIC cards to support the current configuration.
High Availability
Enables an alarm and sends an email notification if one of the Cores in a high-availability environment fails. Enabled by default.
Licensing
Enables an alarm and sends an email notification if the appliance is unlicensed, if there is an issue with the autolicense, the licenses have expired, the licenses are about to expire, or the model is unlicensed. Enabled by default.
Link Duplex
Enables an alarm and sends an email notification when an interface was not configured for half-duplex negotiation but has negotiated half-duplex mode. Half-duplex significantly limits the optimization service results. The alarm displays which interface is triggering the duplex alarm. Enabled by default.
Link I/O Errors
Enables an alarm and sends an email notification when the link error rate exceeds 0.1% while either sending or receiving packets. This threshold is based on the observation that even a small link error rate reduces TCP throughput significantly. A properly configured LAN connection experiences very few errors. The alarm clears when the rate drops below 0.05%. You can enable or disable the alarm for a specific interfaces. Enabled by default.
Link State
Triggers an alarm if network interface link errors are detected. If you receive this alarm, check the status of the interface to begin diagnosing the problem.
Memory Paging
Triggers an alarm if the Core detects extended memory paging activity. If 100 pages are swapped every couple of hours, the appliance is functioning properly. If thousands of pages are swapped every few minutes, contact Riverbed Support. By default, this alarm is enabled.
Process Dump Creation Error
Enables an alarm and sends an email notification if the system detects an error while trying to create a process dump. This alarm indicates an abnormal condition in which the system can’t collect the core file after three retries. It can be caused when the /var directory is reaching capacity or by other conditions. When the alarm is raised, the directory is blacklisted. By default, this alarm is enabled.
Secure Vault
Enables an alarm and sends an email notification if the system encounters a problem with the secure vault. To optimize SSL connections or to use data store encryption, the secure vault must be unlocked.
Server Backup
Enables an alarm and sends an email notification if the system encounters a problem with the server backup. Enabled by default.
Proxy connection failure
Enables an alarm and sends an email notification if the connection to the proxy server fails.
Backup policy failure
Enables an alarm and sends an email notification if a backup fails.
Snapshot error
Enables an alarm and sends an email notification when proxy mounted VMs have associated snapshots and can’t be unmounted.
Excluded VMs
Enables an alarm and sends an email notification when VMs are excluded from a backup policy.
Snapshot
Enables an alarm and sends an email notification if the connection to any of the snapshot storage arrays fails. Enabled by default.
SSL
Enables an alarm if an error is detected in your SSL configuration. Enabled by default.
Core configuration status
Enables an alarm and sends an email notification if the Core configuration encounters a problem with the configuration. Enabled by default.
Protocol Service
Enables an alarm and sends an email notification if any iSCSI protocol errors from the backend storage array are preventing an a storage device from being mounted on the Core. Enabled by default.
Storage Volume Status
Enables, by default, an alarm and sends an email notification if the connection to the storage device has failed or there is an issue with any of these items:
Backend LUN is invalid or corrupted
Backend LUN does not have enough available space
Backend LUN does not have a required capability (for example, chown, delete, or chmod)
Backend LUN size has been decreased
LUN is not supported
Backend connectivity
No read/write permissions on the backend
Space threshold has been reached on the backend
Resize failure
Data sync is blocked between the Edge and Core, potentially due to a protocol-related issue
Reset Threshold
Specifies the reset threshold. The alarm clears when the temperature falls below the reset threshold. The default value is 67°C. After the alarm triggers, it can’t trigger again until after the temperature falls below the reset threshold and then exceeds the rising threshold again.