About Real Time Status

The Real-time Status feature offers the following three separate real-time information utilities:

Health Monitor

Displays the storage system host name or IP address and the current global status.

The status displays green for normal behavior, yellow for non-critical problems, and red for critical problems.

Possible causes for non-critical and critical problems consist of the following.

Yellow light (non-critical problems)	Red light (critical problems)
Red light (critical problems)	Failed fans
Volumes are more than a certain percentage full	Temperature is over threshold
Real-time clock battery is dead	Failed power supplies
Cannot contact storage system for a short period of time (storage system or network is busy or down (for example, transient network failures)	Cannot contact storage system (storage system or network is down)
Not enough spare disks available on system	Cluster status is disabled; cannot takeover, or is in takeover mode

Performance Meter

Displays the storage system operations activity per second. The colored bars that display in the Ops/sec window signify the following:

Blue = NFS ops
Red = CIFS ops
Green = HTTP ops
Yellow = iSCSI ops
Magenta = FCP ops

Note: See the table following the Filer At-A-Glance description for an explanation of the traffic light icon.

Filer At-A-Glance

Filer At-A-Glance displays the following storage system information:

Host name or IP address
Global status
Up time
Refresh time (the drop-down list enables you to select 1 second, 5 seconds, 10 seconds, 30 seconds, 1 minute, 5 minutes, or 10 minutes)

Usage by Volume % (click this link to get file system by volume):

Kbytes used avail @ used
Network File Ops/sec
CPU Busy %
Network Input KB/sec
Network Output KB/sec

The colored bars that display in the Network File Ops/sec window signify the following:

Blue = NFS ops
Red = CIFS ops
Green = HTTP ops
Yellow = iSCSI ops
Magenta = FCP ops

The Performance Meter and Filer At-A-Glance utilities contain a traffic light icon, which designates the status of the communications with the storage system.

Traffic light color	Meaning
Green	Successful communications with the storage system. This reflects that communication with the storage system is successful, not that the storage system is necessarily all right (except that it is actually up and responding to SNMP).
Yellow	Several timeouts in attempts to get storage system status have occurred. This could be caused by one of the following problems: There is a network congestion resulting in a loss of packets. There is a network disruption between the client and the storage system. The storage system has recently become unavailable. In the case of a short disruption, the color quickly returns to green. If disruption continues or the storage system is down, the color eventually advances to red.
Red	Indicates that additional timeouts in attempts to get storage system status have occurred (beyond those required to turn the color to yellow). This could be caused by one of the following problems: There is a network congestion resulting in a loss of packets. There is a network disruption between the client and the storage system. The storage system has recently become unavailable. If the status returns to normal, the color returns to green.
All lights flashing	All lights flashing simultaneously and continuously could indicate one of the several problems: The storage system is down or otherwise unavailable. There is a network disruption between the client and the storage system. SNMP is disabled on the storage system. There is a problem with the browser. If status returns to normal, the color returns to green.