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. LEDs: ME4 Series Storage System FC/iSCSI controller modules (FC and 10GbE SFPs)
Table 6. LEDs:
ME4 Series controller modules (FC and iSCSI SFPs)
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
22 Storage system hardware
To Next Page
Loading...
