How good is a ServerMagic image of Sys after 6 months?

[Garyg]

I have nine NetWare servers (3 NW5.1,1 NW5.0 & 5 NW4.11). I am
thinking of using ServerMagic to create an image of each of my Sys
volumes (I also read an article that I can write these to cd for
permanent storage). I would like to make new images after any major
upgrades on a server but not to exceed 6 months. The four most
important servers all have a replica of the NDS. I would not make an
image of the other volumes because they are too large and they would
change to much. Also, any other volume could be easily brought back
including the trustee rights using my ArcServe backups. The sys volume
is is harder to bring back using Arcserve because of the license and
upgrades I would have to go through in this kind of restore. What I
would like to know is when a server fails and 6 months have passed
since the last image of the server. Will I have a problem with the ds
that is on the image that I bring back to the server? Basically, Is
there anything on this image that might bite me? Any ideas or info on
this would be appreciated.

(God Bless the USA!)