5
PowerPath Administration on Solaris
Reconfiguring PowerPath Devices Online
Whenever the physical configuration of the storage system or the host changes, you must reconfigure the PowerPath devices to avoid data loss.
Configuration changes that require you to reconfigure PowerPath devices include:
◆Adding or removing HBAs
◆Adding, removing, or changing storage system logical devices
◆Changing the cabling routes between HBAs and storage system ports
◆Adding or removing storage system interfaces
!CAUTION
If you are trying to recover from a SCSI bus ID conflict, you must reboot the host before completing the following procedure. The host reboot assures the integrity of the underlying SCSI driver layers so that PowerPath can find all devices on the bus.
To reconfigure PowerPath devices:
1.Update the /kernel/drv/sd.conf file to include target/logical device entries for all multipath storage system logical devices.
2.Create the device nodes. Enter the appropriate command:
On hosts running | Enter |
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Solaris 7, 8, and 9 | devfsadm |
Solaris 2.6 | drvconfig;disks;devlinks |
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3.Use the format command to verify that all devices were created.
4.At the format prompt, enter inquiry.
PowerPath for UNIX Installation and Administration Guide | |
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