More information:

The earlier attempts to do a restore on the .gbk file were made via
IBExpert. I just tried it using the command line. It stopped at the
same point (1,570,000 records), but GBAK displays the following
message:

Done with volume #1, "labels.gbk"
Press return to reopen that file, or type a new
name followed by return to open a different file.
Name:

Since I don't have another file, I pressed "Return". GBAK responded
with:

Expected volume number 2, found volume 1
gbak:

Could not read from file "labels.gbk"

GBAK then repeated the "Done with volume #1" etc.

Could this be a problem with the backup stuff in GBAK rather than the
restore stuff? This has happened with the last two backups of this
database.

--- In ib-support@yahoogroups.com, "jeffshoaf" <jeffshoaf@a...> wrote:
> We have a Firebird 1.0 database that has exceeded 6GB. Since the
> server is running Windows 2000 with NTFS as the file system, we're
> trying to restore a backup made with GBAK to a single file using
the
> Localhost connection.
>
> Whenever the file gets to 4GB, the server shuts itself down and the
> restore fails with a lost connection. The server log lists the
> following problems with the same timestamp:
>
> INET/inet_error: accept errno - 10093
> INET/select_wait: select failed, errno = 10093
> SRVR_multi_thread/RECEIVE: error on main_port, shutting down
>
> Then, 2 seconds later:
>
> C:\Program Files\Firebird\bin\ibserver.exe: terminated abnormally (-
1)
>
> The guardian then restarts the server.
>
> This always happens at the 15,700,000th record and the
resulting .gdb
> database file is exactly 4GB in size.
>
> Can't a database that's larger than 4GB be restored into a single
> file database?