Asynchronous Shared Storage in Disk Sets
In previous versions of Solaris Volume Manager, all of the disks that you
planned to share between hosts in the disk set had to be
connected to each host. They also had to have the exact same path,
driver, and name on each host. Specifically, a shared disk drive had to
be seen by both hosts in the same location (/dev/rdsk/c#t#d#). In addition, the shared
disks had to use the same driver name (ssd).
In the current Solaris OS release, systems that have different views of
commonly accessible storage can nonconcurrently share access to a disk set. With the
introduction of device ID support for disk sets, Solaris Volume Manager automatically tracks
disk movement within named disk sets.
Note - Device ID support for disk sets is not supported in a Sun
When you upgrade to the latest Solaris OS, you need to take
the disk set once in order to enable disk tracking. For more information
on taking a disk set, see How to Take a Disk Set.
If the autotake feature is not enabled, you have to take each
disk set manually. If this feature is enabled, this step is done
automatically when the system is rebooted. For more information on the autotake feature,
see Autotake Disk Sets.
This expanded device ID support also enables you to import disk sets, even
disk sets that were created on different systems. For more information on importing
disk sets, see Importing a Disk Set.