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
Each controller module maintains VPD (Vital Product Data) in EEPROM devices. In a dual-controller module system, controller
modules are interconnected by SBB-defined I2C buses on the midplane. In this way, the SBB module can discover the type and
capabilities of the partner SBB module, and vice versa, within the enclosure.
12 Gb/s controller module LEDs
The diagrams with tables that immediately follow provide descriptions for the different controller modules that can be installed
into the rear panel of the controller enclosures. Showing controller modules separately from the enclosure enables improved
clarity in identifying the component items called out in the diagrams and described in the companion tables within the figure/
table ensembles.
NOTE: Consider the following when viewing the controller module diagrams on the following pages:
● In each diagram, the controller module is oriented for insertion into the top slot (A) of 2U enclosures. When oriented for use
in the bottom slot (B) of 2U enclosures, the controller module labels appear upside down.
● In each diagram, the controller module is oriented for insertion into either slot of 5U84 enclosures.
● Alternatively, you can configure the 2U controller enclosure with a single controller module. Install the controller module in
slot A, and install a blank plate in slot B.
Figure 31. ME4 Series Storage System FC/iSCSI controller modules (FC and 10GbE SFPs) LEDs
Table 6. ME4 Series controller modules (FC and iSCSI SFPs) LEDs
LED Description Definition
1 Host 4/8/16 Gb FC
1
● 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 10 GbE iSCSI
2,3
● 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 or replication activity.
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.
7 Cache status
4
● Green—Cache is dirty (contains unwritten data) and operation is
normal. The unwritten information can be log or debug data that
remains in the cache, so a green cache status LED does not, by
itself, indicate that any user data is at risk or that any action is
necessary.
24 Storage system hardware