HP StorageWorks 2.128 SAN Director Switch - Manual (Page 32)

32 Performing basic configuration tasks
For information on extended ISL modes, which enable longer-distance ISLs, see ” Administering extended
fabrics ” on page 163.
Working with domain IDs
Although domain IDs are assigned dynamically when a switch is enabled, you can reset them manually to
control the ID number or to resolve a domain ID conflict when you merge fabrics.
If a switch already has a domain ID when it is enabled, and that domain ID conflicts with a switch already
in the fabric, the conflict is resolved. The process can take several seconds, during which traffic is
delayed.
The default domain ID for HP StorageWorks switches is 1. The default domain ID applies to the logical
switches in the Core Switch 2/64, SAN Director 2/128, and 4/256 SAN Director that are configured
for two domains. To prevent domain conflict, you can either disable one of the switches until the other is
connected to the fabric, and then reenable the switches so that unique domain IDs are assigned, or you
can use the procedure ” Setting the domain ID ” on page 33 to make the domain IDs unique before
connecting the logical switches to the fabric.
CAUTION: On switches running Fabric OS 4.0.0 and later, do not use domain ID 0, which is reserved
for another purpose. The use of this domain ID can cause the switch to reboot continuously.
Avoid changing the domain ID on the FCS in secure mode. To minimize down time, change the domain
IDs on the other switches in the secure fabric.
Displaying domain IDs
1. Connect to a switch and log in as admin.
2. Issue the
fabricShow
command.
Fabric information is displayed, including the domain ID (D_ID), for example:
ras045:admin> fabricshow
Switch ID Worldwide Name Enet IP Addr FC IP Addr Name
-------------------------------------------------------------------------
1: fffc01 10:00:00:60:69:e4:00:3c 10.32.220.80 0.0.0.0 "ras080"
2: fffc02 10:00:00:60:69:e0:01:46 10.32.220.1 0.0.0.0 "ras001"
3: fffc03 10:00:00:60:69:e0:01:47 10.32.220.2 0.0.0.0 "ras002"
5: fffc05 10:00:00:05:1e:34:01:bd 10.32.220.5 0.0.0.0 "ras005"
6: fffc06 10:00:00:05:1e:34:02:3e 10.32.220.6 0.0.0.0 "ras006"
7: fffc07 10:00:00:60:69:34:02:0c 10.32.220.7 0.0.0.0 "ras007"
10: fffc0a 10:00:00:60:69:80:04:46 10.32.220.10 10.32.219.0 "ras010"
11: fffc0b 10:00:00:60:69:80:04:47 10.32.220.11 10.32.219.1 "ras011"
15: fffc0f 10:00:00:60:69:80:47:74 10.32.220.15 0.0.0.0 "ras015"
16: fffc10 10:00:00:60:69:80:47:75 10.32.220.16 0.0.0.0 "ras016"
19: fffc13 10:00:00:05:1e:34:00:ad 10.32.220.19 0.0.0.0 "ras019"
20: fffc14 10:00:00:05:1e:34:00:63 10.32.220.20 0.0.0.0 >"ras020"
30: fffc1e 10:00:00:60:69:90:02:21 10.32.220.30 0.0.0.0 "ras030"
31: fffc1f 10:00:00:60:69:90:02:60 10.32.220.31 0.0.0.0 "ras031"
32: fffc20 10:00:00:60:69:90:02:68 10.32.220.32 0.0.0.0 "ras032"
33: fffc21 10:00:00:60:69:90:03:20 10.32.220.33 0.0.0.0 "ras033"
34: fffc22 10:00:00:60:69:90:03:01 10.32.220.34 0.0.0.0 "ras034"
40: fffc28 10:00:00:60:69:50:06:7f 10.32.220.40 0.0.0.0 "ras040"
45: fffc2d 10:00:00:05:1e:34:c5:17 10.32.220.45 0.0.0.0 "ras045"
50: fffc32 10:00:00:60:69:c0:06:64 10.32.220.50 0.0.0.0 "ras050"
51: fffc33 10:00:00:60:69:c0:1e:43 10.32.220.51 0.0.0.0 "ras051"
60: fffc3c 10:00:00:60:69:12:34:44 10.32.220.60 0.0.0.0 "ras060"
62: fffc3e 10:00:00:60:69:12:32:76 10.32.220.62 0.0.0.0 "ras062"
63: fffc3f 10:00:00:60:69:12:45:6e 10.32.220.63 0.0.0.0 "ras063"
64: fffc40 10:00:00:60:69:12:1d:51 10.32.220.64 0.0.0.0 "ras064"
The Fabric has 25 switches
ras045:admin>