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Working with enclosure alarms – Avago Technologies 3ware SAS 9750-16i4e User Manual

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Working with Enclosure Alarms

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185

Working with Enclosure Alarms

Some enclosures provide an alarm that turns on when a RAID unit becomes
degraded or goes offline, or when a drive has failed. (Specific use of the alarm
feature may vary somewhat, depending on the enclosure.)

If you have an enclosure with an audio alarm, you can turn the alarm

Off

when it sounds, using 3DM2, 3BM, or the CLI. If the enclosure supports
muting, you can also mute and unmute the alarm in 3DM2 or the CLI.

Note that you cannot turn an enclosure alarm on. Alarms are only turned on
(activated) when an error condition has been detected for a drive or RAID
unit. To view any error conditions that may have caused the enclosure alarm
to go off, see the

3DM2 Alarms

page. Status information about supported

enclosures is also available on the

3DM2 Enclosure Details

page. (You can

also use the CLI

/cx show alarms

command, or check the status of the RAID

unit in 3BM.)

Muting an alarm provides the ability to silence the alarm, without turning it
off completely. You can also set the alarm to Mute in advance, if you do not
want the alarm to sound. When the alarm audibility is set to

Mute

and the

alarm turns on, the word

Activated

continues to display in the Status column

of the Audio Alarm Summary on the 3DM2 Enclosure Details page, as shown
in Figure 90.

Note:

Enclosure alarm support is based on the SES protocol.

9750 controllers support enclosure audio alarm for enclosures with expanders and

I

2

C backplanes that support the SES-2 protocol.

However, enclosure alarm support depends on the capabilities of the specific
enclosure or backplane. Not all enclosures provide an audio alarm, and for those
that do, not all provide both the On/Off and Mute/Unmute feature.

For details about what specific features are provided with your enclosure, see the
documentation that came with the enclosure or backplane.

Tip:

Be sure you have the most recent firmware for the enclosure. If the alarm

feature does not work as anticipated, contact the manufacturer for updated
firmware.

Supported enclosures are listed at

http://www.lsi.com/channel/support/marketing_resources

, through the Data &

Interoperability tab.

Additional support information is available in the LSI KnowledgeBase, at this
website:

http://kb.lsi.com

.

.