This is the results of the gstat command:

Database "ejdb.fdb"
Database header page information:
Flags 0
Checksum 12345
Generation 24386941
Page size 4096
ODS version 10.1
Oldest transaction 24386830
Oldest active 24386831
Oldest snapshot 24386831
Next transaction 24386832
Bumped transaction 1
Sequence number 0
Next attachment ID 32
Implementation ID 16
Shadow count 0
Page buffers 3000
Next header page 0
Database dialect 3
Creation date Dec 7, 2007 7:41:14
Attributes no reserve

Variable header data:
Sweep interval: 20000
*END*


________________________________
From: hvlad <hvlad@...>
To: firebird-support@yahoogroups.com
Sent: Saturday, February 26, 2011 4:13 AM
Subject: [firebird-support] Re: problem with nbackup on Firebird v2.1.3 on Windows Server

--- In firebird-support@yahoogroups.com, "Scott" wrote:
>
> Please forgive me if this is a well known issue. This is my
> first time with Firebird, I recently inherited the application.
>
> I am attempting to perform a "nbackup" using the following command:
>
> nbackup -U sysdba -P masterkey -B 0 ejdb.fdb c:\delme\backup.nbk
>
> This is the error I get back:
>
> [
> PROBLEM ON "begin backup: commit".
> feature is not supported
> SQLCODE:-901
> [
> Failure: Database error
>
> Any direction would be very much appreciated!!

Show us output of

gstat -h ejdb.fdb

Regards,
Vlad







[Non-text portions of this message have been removed]