Number 162
December 1, 1986

Title:  NetWare Tape Subsystem Software IBM/TI or Victor Format Revisions

The versions for SBACKUP.I and SRESTORE.I on NetWare Tape Subsystem Software
in either the IBM/TI or Victor Formats have been updated.  SBACKUP.I is now
V1.6 and SRESTORE.I is now V1.8. This software is now available at no charge
for those needing it. Contact either the NetWare Center in your area or the
Novell Sales department and ask for the following part numbers, IBM/TI
Format #127-010055-001 Rev. F or Victor Format #127-010056-001 Rev. F. The
reason for the version change is bug fixes and enhancements. They are as
follows:

SBACKUP.I

SBACKUP.I V1.6 will now operate properly on larger volumes.  Where V1.5
would only work on volumes less than 128 Megabytes, this version will work
on volumes larger than 128 Megabytes.  It also checks for the proper
sequence number when traversing the DIRSTAMP.SYS fat-chain.  This was done
because the software could potentially hang if the fat-chain was not
functioning properly.

SRESTORE.I

SRESTORE.I version 1.8 will also operate properly on larger volumes. It also
has some further enhancements as follows:

It now uses an insert-sort algorithm (rather than bubble sort) to speed up
the "disk surgery."

It has a much more efficient way of counting the bits in the bitmap.  The
number of bits set in the bitmap idenitifies the proper block from the tape.

If the file size in the directory entry does not match the size determined
from traversing the fat-chain, SRESTORE.I ignores the directory entry value
and uses the fat-chain. This helps the software handle erroneous data in the
directory entry.

SRESTORE.I also checks for circularly linked fat-chains.