"backup as400 on windows server" software?

Posted on 2011-05-13
Last Modified: 2012-08-13
Someone knows a valid software
to backup as400 data on a windows server machine?
Question by:bobdylan75
    LVL 17

    Accepted Solution

    You can use symantec Backup Exec to backup AS 400 data on window server
    LVL 17

    Assisted Solution

    by:Gaurav Singh
    LVL 34

    Assisted Solution

    by:Gary Patterson
    How do you use Backup Exec to backup an AS/400?  Sure, you can backup individual stream files and to some extend physical data tables through AS/400 NetServer, but I am not aware of any comprehensive method of using Backup Exec as a real "total recovery" solution for AS/400.  Symantec certainly doesn't produce an agent for the AS/400 (iSeries, IBM i):

    I'd approach with caution.  Details on AS/400 support were scanty.

    The AS/400 has native mechanisms that can be used to get certain backups to Windows:

    Save to AS/400 Save file, then download the save file to Windows.  Unfortunately, SAVSYS operations aren't supported to save file, since there is no way to IPL the system off of a save file.

    At V5R4 and later, it is also possible to use Virtual Tape support for most backups.  Again, bear in mind that you cannot IPL from Virtual Tape, so you'll need optical or tape media to use as an alternate IPL source in the event that you need to do a full system reload, or in case your load source becomes unusable.  Still, Virtual Tape is a great way to get your backups in a format that can be downloaded to another system.

    - Gary Patterson
    LVL 2

    Assisted Solution

    Not sure why you would need a windows solution. The AS400 backup process is stone simple and can be totally automated with just a little CL and/or RPG code, even REXX code.

    My first question would be what exactly are you trying to accomplish with a windows backup program that you can't do on the 400 directly.

    But if you absolutely need this, there are some custom built options you can look at but it violates my personal code of "keep it simple".

    As Gary mentioned, you can use a virtual tape drive after V5R4 to backup. What you can then do is FTP the resulting objects a Windows or Linux server and clear them off the 400 to save disk space. You can do that with Save files, but Save files are limited to one library per save file and you can't do a savsys. You can even do a full Option 21 Save to a virtual tape drive to simplify things.  I've done this exact process  on several occasions for backups and to migrate machines. You can simply automate it with just a little CL code. Not sure though what that really buys you over using a physical tape other than managing the files in a PC environment.

    While you can't IPL off a virtual tape, you can duplicate it to a physical tape if you want(not sure why you didn't just backup to tape in the first place but you can do it) and better yet you can do an OPTION 21 Full restore from a virtual tape. So if you have method to boot the box and install the SLIC/OS400 you are bang ready to go. Just FTP the virtual tape objects back to the 400 and restore from there.

    The offline backup processes are big on promises but most are not 400 centric at all and have a hard time explaining how you are going to get back up at 2am on a Sunday if you have a problem and don't have a tape/cd ready to boot off of. Not mention restoring 500gb over a wire is not a good plan if you want to be back up and running anytime soon.

    Personally though virtual tape is a quite disk use intensive solution and AS400 disk is still pretty expensive not to mention a performance hit if the machine is in productive use during the backups over the same thing on a physical tape drive process. So it's not my first choice over tape.

    If you are looking for a back up to a windows box, I suspect you are probably not a 400 centric user so this might be more than you are willing to go through. Tapes are pretty bullet proof and not to expensive.  However FTP'ing virtual tape objects to a Linux box is cheap and easy, disk space is real cheap on that platform and it's pretty reliable.

    Also you can map drives to NetServer IFS stuff, I do that to backup some customers Lotus Notes data to a BackupExec driven PC backup scheme. Not a perfect solution but it works automatically if you set it up right.

    Once again, this is not the path I would follow by choice but there are options.

    Michael Cody

    Author Comment

    I already implemented a ftp MS software (vs2005) that gets savf files from as400.
    In as400 I implemented cl code to save in these savf files all my data,
    and so with my software on windows I get them and I store them on a pc harddisk.
    I only want to know if there is a different valid solution which does the same and more, as save only those files which have changed or only the changes in the file...

    Author Closing Comment

    LVL 34

    Expert Comment

    by:Gary Patterson
    Also look at the SAVCHGOBJ command on the AS/400.  This command will enable you to perform differential (or incremental, with a little more work) backups that can reduce your daily backup size.  The drawback is that the restore process is more complicated.

    Still, if you have a narrow backup window, or other need to reduce the size or increase the speed of your daily backups, SAVCHGOBJ is worth a look.

    - Gary Patterson

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