Administrator's Guide

Table 4 SAS hard drive LED combinations (continued)
StatusDescriptionItem
rebuilt.<and>Drive is not rebuilding<and>Drive is not a member of a
volume undergoing capacity expansion or RAID migration.
Solid green = Drive is a member of a RAID volume <and> Drive is not a
spare drive <and> Drive is not in a replacement or failed state for any
volume that is a member of a RAID volume <and> Drive is not currently
performing I/O activity.
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 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
2
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.
NOTE: Spare drives are only used when a disk drive fails. Until a spare drive is used, it remains
offline and its LEDs will remain off.
Figure 36 1210m Cache module controller LEDs
Table 5 1210m Cache module controller LED status
StatusDescriptionItem
Green off, amber on = A backup is in progress.Controller LEDsGreen LED upper left;
Amber LED lower right
Green flashing (1 Hz), amber on = A restore is in progress.
Green flashing (1 Hz), amber off = The capacitor pack is
charging.
Green on, amber off = The capacitor pack has completed
charging.
50 Monitoring and troubleshooting the messaging system