I have a hard drive going bad, I got several messages from the server:
NSS-3.00-5001:Pool "poolname" is being deactivated

I use Symantic Ghost to create images of drives. I tried to clone the
original drive to the secondary drive. The are the same make, model and
size drives. After the clone is done, when I boot the server up, my SYS
volume show, but my DATA volume is not available to me. I have tried to
activate it and the pool it was in but the message says that DATA was not
found. I try to create a partition but I get an error saying that "no
available space". I am missing 15GB worth of hard drive space that is not
showing in NSSMU. How do I get this volume to activate?