Owners Manual
Table Of Contents
- Dell EMC PowerVault ME4 Series Storage System Owner’s Manual
- Contents
- Storage system hardware
- Troubleshooting and problem solving
- Module removal and replacement
- ESD precautions
- Dealing with hardware faults
- Firmware updates
- Continuous operation during replacement
- Shutting down attached hosts
- Shutting down a controller module
- Verifying component failure
- Customer-replaceable units (CRUs)
- Attach or remove the front bezel of a 2U enclosure
- Replacing a drive carrier module in a 2U enclosure
- Replacing a DDIC in a 5U enclosure
- Replacing a controller module or IOM in a 2U or 5U enclosure
- Replacing a power supply unit (PSU) in a 5U enclosure
- Replacing a fan cooling module (FCM) in a 5U enclosure
- Replacing a power cooling module (PCM) in a 2U enclosure
- Completing the component installation process
- Verifying component operation
- Performing updates in PowerVault Manager after replacing an FC or SAS HBA
- Events and event messages
- Connecting to the CLI port using a serial cable
- Technical specifications
- Standards and regulations
Table 13. Drive carrier LED states (continued)
Activity LED (Green) Fault LED (Amber) Status/condition*
On On Fault (leftover/failed/locked-out)
Blink off with activity Off Available
Blink off with activity Off Storage system: Initializing
Blink off with activity Off Storage system: Fault-tolerant
Blink off with activity Off Storage system: Degraded (not critical)
Blink off with activity Blinking: 3s on/ 1s off Storage system: Degraded (critical)
On Off Storage system: Quarantined
Blink off with activity Blinking: 3s on/ 1s off Storage system: Offline (dequarantined)
Blink off with activity Off Storage system: Reconstruction
Blink off with activity Off Processing I/O (whether from host or
internal activity)
*If multiple conditions occur simultaneously, the LED state behaves as indicated by the condition listed earliest in the table, as
rows are read from top to bottom.
2U controller module and IOM LEDs
Controller module and IOM LEDs pertain to controller modules and expansion modules, respectively.
● For information about controller module LEDs, see 12 Gb/s controller module LEDs on page 24.
● For information about IOM LEDs, see 2U expansion enclosure IOM LEDs on page 35.
2U expansion enclosure IOM LEDs
Expansion enclosure IOM status is monitored by the LEDs located on the face plate. See IOM detail – ME412/ME424/ME484 on
page 14. LED behaviors for expansion enclosure IOMs are described in the following table. For actions pertaining to Cache status
LED details on page 27 or Expansion enclosure IOM LED states on page 35, see Fault isolation methodology on page 30.
Table 14. Expansion enclosure IOM LED states
CRU OK
(Green)
CRU Fault
(Amber)
External host port
activity (Green)
Status
On Off -- IOM OK
Off On -- IOM fault – see Replacing a controller module or IOM in a 2U or 5U
enclosure on page 60
-- -- Off No external host port connection
-- -- On HD mini-SAS port connection – no activity
-- -- Blinking HD mini-SAS port connection – activity
Blinking -- -- EBOD VPD error
5U84 enclosure LEDs
When the 5U84 enclosure is powered on, all LEDs turn on for a short period to ensure that they are working.
NOTE: This behavior does not indicate a fault unless LEDs remain lit after several seconds.
Troubleshooting and problem solving 35