NEC Express5800/320Ma Betriebsanweisung PDF herunterladen (Seite 80)

Taking Components Offline and Bringing Them Online

5-2 Express5800/320Ma: System Administrator’s Guide

Clearing the MTBF

Clearing the MTBF sets the MTBF to 0 (Unknown) and erases the record of all faults.

NOTE

Clearing the MTBF does not bring a device back into

service automatically.

If the device that you cleared is in the Broken state, you must correct the state.

Changing the MTBF Threshold

The MTBF threshold is expressed in seconds. If a device’s MTBF falls beneath this

threshold, the system takes the device out of service and changes the device state to

Broken.

CAUTION

NEC Solutions (America), Inc. presets the MTBF

thresholds. You should not modify them unless instructed

to do so by NEC Technical Support or your authorized

service representative.

Taking Components Offline and Bringing Them Online

You can use ftSMC to take a component offline or bring a component online. Before

you take a component offline, verify that it is safe to do so.

For a description of the procedures, see the online help for ftSMC.

Hard Disks

If a disk’s status is not healthy, you may be able to recover the disk, or you may need

to replace the disk.

Recovering a Disk

In your disk-management tool, try to recover the disk manually if:

• A failed volume (non-RDR only) appears as Failed Redundancy

• The RDR or non-RDR disks appear as Offline, Missing, or Online (Errors)

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NEC Express5800/320Ma Betriebsanweisung Seite 80