My XSAN volume has been automatically dismounted and now when I try to mount it says "Failed to mount volume on XSAN on <computer name>) when I try from terminal using sudo it will ask for administrator. Unfortunately I don't remember administrator password please help?
Sudo doesn't need the admin password, it needs yours. If your userid is in the sudoers file, you enter YOUR password when requested, and it grants you root rights for that operation. You don't need the admin or root password to use sudo.