Administrator's Guide

NOTE: All these LEDs are off if the enclosure has power but is turned off (see Table 11 (page

57)). Then only the equivalent Chassis LEDs (2,3,4) on the rear Power Pod shows status.

Figure 13 Hard drive LEDs

1. Fault/UID LED (amber/blue)

2. Online LED (green)

Table 5 SAS hard drive LED combinations

StatusDescriptionItem

Green = Force Off (override drive activity output). Drive is not a member

of any RAID volumes <or> Drive is configured but in a replacement or

failed state for at least one volume that is a member of a RAID volume

<or> Drive is a spare drive that is inor has been activated but has not

been rebuilt.

<and>

Drive is not rebuilding

<and>

Drive is not a member of a volume undergoing capacity expansion or

RAID migration.

Activity/0nline LED1

Solid green = Drive is a member of a RAID volume <and> Drive is not

an inspare drive <and> Drive is not in a replacement or failed state for

any volumes that is a member of a RAID volume <and> Drive is not

currently performing I/O.

Blinking green (@ 4 Hz 50% of duty cycle) = Drive is currently performing

I/O activity <and> Drive is a member of a RAID volume <and> Drive is

not in a replacement or failed state for any volumes that it is a member

of a RAID volume (drive is online) <and> Drive is not rebuilding <and>

Drive is not a member of a volume undergoing capacity expansion or

RAID migration.

Blinking green (@1 Hz 50% duty cycle — override drive activity output)

= Drive rebuilding <or> member of volume undergoing Capacity

Expansion/RAID Migration.

Off = Drive is not failed <and> Drive is not selected (unit identification).Fault/Identification LED

– Bicolor amber/blue

Solid blue = Drive is not failed <and> Drive is selected (unit identification).

Solid amber = Drive is failed <and> Drive is not selected.

Blinking amber (@ 1Hz 50% duty cycle) =Drive is in a predictive failure

state <and> Drive is not failed <and> Drive is not selected.

Blinking alternate amber/blue (@ 1Hz 50% duty cycle) =Drive Failed

<or> Drive is in a predictive failure state

<and>

Drive is selected.

54 Monitoring and troubleshooting the messaging system