You don't need to wipe the server, but you should probably recreate the application ZFS pool in a way that will suit your new application. To list ZFS pools and check their sizes:

Code:

zpool list

To check what filesystems are created there:

Code:

zfs list

Next you should confirm that all of those filesystems are not needed anymore. After that you should unmount all of them (zfs umount). Then you can list disks used by ZFS pools:

Code:

zpool status

And destroy them:

Code:

zpool destroy pool_name

Now you will have some spare disks that can be used by your application. You should choose enough disks from destroyed pools to meet your application's requirements. With the disk list at hand, you can combine them into ZFS pool:

Code:

zpool create new_pool disk1 disk2 ...

If your application needs disk failure protection, then you should use mirroring or RAIDZ, described here: Creating a ZFS Storage Pool (Solaris ZFS Administration Guide)After that you can start creating application specific filesystems, using

Code:

zfs create new_pool/new_fs

To change their mountpoints use:

Code:

zfs set mountpoint=/new_mountpoint new_pool/new_fs