Id chip feature – Sun Microsystems Sun StorageTek SG-XPCIE20FC-NEM-Z User Manual
Page 19
Chapter 1
Network Express Module Overview
3
ID Chip Feature
The 20-port NEM has an ID chip on it that contains an Electrically Erasable Read
Only Memory (EEPROM). This EEPROM stores the worldwide names (WWNs) for
each of the ten HBAs and 20 FC ports on the NEM.
When you replace a failed NEM that is running firmware prior to version 2.72a, each
of the ten HBAs and 20 FC ports on the NEM is assigned new port and node WWNs.
Thus, you must update SAN components, such as FC switches and storage arrays,
with the new WWN values.
However, if the failed NEM is running firmware version 2.72a, at minimum, you can
retain the existing HBA and FC port WWNs by removing the ID chip from the failed
NEM and installing the chip on the replacement NEM. Thus, you do not have to
update any SAN components as part of the NEM replacement. In order for the ID
chip feature to work, the replacement NEM must be running firmware version 2.72a,
at minimum.
For information about determining and updating the firmware version, see the
following Emulex documents:
■
Solaris:
Note –
For the Solaris OS, the 2.72a firmware is embedded in the emlxs driver
version 2.21g, at minimum. This driver is part of s10u5 and available as Solaris 10
patch 120223-22 or 120222-22 at:
■
Linux:
www-dl.emulex.com/support/linux/81103/pdf/manual.pdf
LED indicators
A blue (Ready to Remove), yellow (Service Action
Required) and green (Power, Attention, and Connected)
LED on the front panel.
Two LEDs per channel (green and yellow) on the front
panel used to indicate port status.
Buttons
Attention button to support hot-swap functionality.
Locator button to assist in locating the module. (See
for button locations.)
Form Factor
PCI Network Express Module
TABLE 1-1
NEM Features and Specifications (Continued)
Feature
Description