Manual

Reporting group
numbers
The reporting group number (RGN) range is 0000 through 4099, decimal.
• 0000 is reserved for enclosures that are not part of any reporting group.
• 0001 through 00
15 are RGNs reserved for use by the EMU.
• 0016 through 4095 are valid RGNs.
• 4096 through 4099 are invalid RGNs.
The reporting group numbers are displayed on the EMU alphanumeric display as a pair of two-digit
displays. These two displays are identified as rH and rL.
• Valid rH disp
lays are in the range 00 through 40, and represent the high-order (most significant)
two digits of
the RGN.
• Valid rL displays are in the range 00 through 99, and represent the low-order (least significant)
two digits of the RGN.
To view a reporting group number:
1. Press and re
lease the bottom push button until the alphanumeric display is rG.
2. To display the two most significant digits of the Reporting Group Number, press and hold the top
push b ut ton unit the display is rH.
3. Press and r
elease the top push but ton to display the first two digits of the RGN.
4. Press and release the top push button until the alphanumeric display is rH.
5. Press and hold the top push but ton until the alphanumeric display is rL.
6. Press and
release the top push button to display the last two digits of the Reporting Group Number.
7. To exit the display, press and release the bottom p ush button until the alphanumeric display is rG.
Fibre Channel loop switches
The Fibre Channel loop switch acts as a central point of interconnection and establishes a fault-tolerant
physical loop topology between the controllers and the disk enclosures.
64
Enterprise Virtual Array hardware components