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Replacing the SNC 6101
1
Remove the SNC 6101 from its protective bag.
2
Install it in the Scalar 100 according to the steps available in
3
If it is not imperative for the replacement SNC 6101 to have a WWN identical to the replaced SNC 6101,
proceed to the
Final Diagnostic Tests
If the replacement SNC 6101 must have a WWN identical to the replaced SNC 6101, proceed to
Changing the
WWN.
Changing the WWN
Before you make any changes to the world wide names of the SNC 6101, read the following discussion in
its entirety.
All Fibre Channel devices are identified by world wide names (WWNs). These names uniquely identify a
device on a storage area network (SAN) and are used by hosts to correctly connect to the storage
networking controller (SNC) or I/O blade. WWNs are divided into two types: port names, which identify
individual ports; and node names, which identify the entire unit. WWNs are formed of three critical
components:
•
Port/Node ID—distinguishes port WWNs from node WWNs
•
OUI—identifies the device type, stands for organizational unique identifier
•
Device ID—identifies the specific device
For ADIC devices, the node ID is always "10:00" and the port ID is "20:x0" where x is the port number. The
OUI is "00:60:45" for the SNC 3000 and 5000 series and "00:30:8C" for the SNC 6000 series. If for any
reason you incorrectly enter a WWN, the changes can be cleared and replaced with the original WWN,
which is stored in the SNC.
Only trained and authorized service personnel should use these
CAUTION
procedures. Data corruption or loss may result from the incorrect use
of these procedures. Do not change the WWN of any device on the
SAN before you talk to your service representative.
Before Changing the WWN on a Replacement SNC 6101
1
Find your saved copy of the current (pre-replacement) configuration. Refer the SNC Firmware 4.4x
Users Guide for information on saving a configuration file.
2
Use the fcShowNames command and save its output to an easily accessible location in case the SNC
6101 should ever fail. The following provides an example of the output from this command:
SNC > fcShowNames
-----------------------------------------------------------------
Ctlr : PCI Addr : ISP
Id
: Bs Dv Fn : Type
-----------------------------------------------------------------
1
: 00 07 00 : 2300
2
: 00 08 00 : 2300
-----------------------------------------------------------------
value = 66 = 0x42 = 'B'
SNC >
3
Install and cable the replacement SNC 6101. Follow the instructions provided in
on page 17.
SNC 6101 User's Guide
To install the SNC 6101
on page 41.
:
Node
:
Name
: 1000030.8c1705eb : 20010060.451705eb
: 1000030.8c1705eb : 20020060.451705eb
on page 16.
:
Port
:
Name
Cabling the SNC 6101
37
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