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 6. ME4 Series controller modules (FC and iSCSI SFPs) LEDs (continued)
LED Description Definition
● Off—In a working controller, cache is clean (contains no
unwritten data). This is an occasional condition that occurs while
the system is booting.
● Blinking green—A CompactFlash flush or cache self-refresh is in
progress, indicating cache activity.
8 Network Port Link Active Status
5
● Off—The Ethernet link is not established, or the link is down.
● Green—The Ethernet link is up (applies to all negotiated link
speeds).
9 Network Port Link Speed
5
● Off—Link is up at 10/100 base-T negotiated speeds.
● Amber—Link is up and negotiated at 1000 base-T.
10 Expansion Port Status
● Off—The port is empty or the link is down.
● Green—The port is connected and the link is up.
1
When in FC mode, the SFPs must be qualified 8Gb or 16Gb fiber optic option. A 16 Gb/s SFP can run at 16 Gb/s, 8 Gb/s, 4
Gb/s, or auto-negotiate its link speed. An 8 Gb/s SFP can run at 8 Gb/s, 4 Gb/s, or auto-negotiate its link speed.
2
When in 10 GbE iSCSI mode, the SFPs must be a qualified 10 GbE iSCSI optic option.
3
When powering up and booting, iSCSI LEDs are on/blinking momentarily, then they switch to the mode of operation.
4
Cache Status LED supports power on behavior and operational (cache status) behavior. See also Cache Status LED – power
on behavior on page 27.
5
When port is down, both LEDs are off.
Figure 32. ME4 Series 10Gbase-T controller module LEDs
Table 7. ME4 Series 10Gbase-T controller module LEDs
LE
D
Description Definition
1 Host 10Gbase-T iSCSI
● Link Status
● Link Activity
● Off—No link detected.
● Green—The port is connected and the link is up.
● Blinking green—The link has I/O activity.
2 Host 10Gbase-T iSCSI
Link Speed
● Off—The link is not established, or the link is down.
● Green—The link is up at 10 Gb negotiated speed.
● Amber—The link is up at 1 Gb negotiated speed.
3 OK
● Green—The controller is operating normally.
● Blinking green—System is booting.
● Off—The controller module is not OK, or is powered off.
4 Fault
● Off—The controller is operating normally.
● Amber—A fault has been detected or a service action is required.
● Blinking amber—Hardware-controlled power-up or a cache flush or restore error.
5 OK to remove
● Off—The controller is not prepared for removal.
● Blue—The controller module is prepared for removal.
6 Identify White—The controller module is being identified.
Storage system hardware 25