On rare ocassions it may be necessary to reset an Emulex HBA to re-establish connectivity to fabric services, and to find new targets and LUNs that have been added to the fabric. This can be accomplished with a system reboot ( which takes a good deal of time, and is not an option when availability is the primary service driver), or with the Emeulex hbacmd(1m) or lputil(1m) utilities. To reset an adaptor with hbacmd(1m), the WWPN is passed as an option:
$ /usr/sbin/hbanyware/hbacmd Reset 10:00:00:00:c9:49:2c:b4
Reset HBA 10:00:00:00:c9:49:2c:b4
To reset an HBA through the lputil(1m) text-base menu, you can select option 4 from the main menu, and pick the adaptor to reset:
$ /usr/sbin/lputil/lputil
LightPulse Common Utility for Solaris/SPARC. Version 2.0a5 (4/7/2005).
Copyright (c) 2005, Emulex Corporation
Emulex Fibre Channel Host Adapters Detected: 3
Host Adapter 0 (lpfc3) is an LP9802 (Ready Mode)
Host Adapter 1 (lpfc4) is an LP9802 (Ready Mode)
Host Adapter 2 (lpfc5) is an LP9802 (Ready Mode)
MAIN MENU
1. List Adapters
2. Adapter Information
3. Firmware Maintenance
4. Reset Adapter
5. Persistent Bindings
0. Exit
Enter choice => **4**
0. lpfc3
1. lpfc4
2. lpfc5
Select an adapter => **0**
MAIN MENU
1. List Adapters
2. Adapter Information
3. Firmware Maintenance
4. Reset Adapter
5. Persistent Bindings
0. Exit
Enter choice => **0**
Once the adaptor is reset, you should see a message similar to the following in the system logfile:
Sep 7 15:23:49 tiger lpfc: [ID 728700 kern.warning] WARNING: lpfc3:1303:LKe:Link Up Event x1 received Data: x1 x0 x8 x14
Emulex makes a killer HBA, and provides several awesome software utilities to manage host side SAN connectivity.