I have a Dell 1600 SC server with Netware 6.0 installed. Four days ago I retired this server for a newer model.

Yesterday we started the old server so that I could copy some files over to the new server. Here's the problem: the server abends as it’s starting up and we can't get to VOL1.
“Server halted Tuesday, February 19, 2008 9:16:57.148 am. Abend 1 on P00: Server-5.60.05-0: NSS Free Tree(3) is corrupt.”

While reviewing the ABEND.LOG I see that there is a common message amongst all the data:
“The NetWare OS detected a problem with the system while executing a process owned by ZLSS.NSS. It may be the source of the problem or there may have been a memory corruption.”

Another message worth noting:
” Running process: Console Command Process
Thread Owned by NLM: SERVER.NLM
Stack pointer: C8969EF0
OS Stack limit: C8964040
Scheduling priority: 67371008
Wait state: 5050090 Wait for interrupt
Stack: --CB52E2EC (MANAGE.NSS|NSSMessageTable+CCE4)

I’d appreciate any insight as to what caused this – and most importantly how we can get this sucker up long enough to copy all the data on to an external disk drive.

ABEND.LOG attached.