AS/400 Backup suggestions

5 pts.
Tags:
AS/400
AS/400 backup
IBM i
Virtual tape
Hello, I am exploring options to speed up our backup. Currently we back up our IBM i to an LTO4 tape drive. The backups are starting to take longer and longer and we need to find a way to speed things up. Obviously a faster drive would be one option, but I was also wondering if we could explore using a virtual tape drive to back up (faster) and then back up the virtual tape to actual tape. Does anyone have any experience with this sort of setup? Any and all input and suggestions is appreciated!

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  • CharlieBrowne

    Are you using Save While Active? Are you doing this in a dedicated system? How much has your backup time increased?

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  • ToddN2000

    Are you doing a full backup or backing up just changed objects SAVCHGOBJ? Have you checked your file for large numbers of deleted records? You may need to do a RGZPFM to cut down on the file sizes.

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  • aceofdelts

    If you have enough disk space then you can back up to a save file. When done you take this out to tape. yes, it's 2 steps but who cares how long step 2 runs (OK, must be less than 24 hours).

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  • pdraebel
    Useing Virtual Tape support can be an option, but remember that there will be no Compression of data. Another option would be to go via SAVE Files.
    If possible I would suggest a save strategy with using SAVCHGOBJ in conjunction with Save While Active.
    We managed to shrink our backup window from 5-6 hours to under 30 minutes unavailability. We also use BRMS. In those 30 minutes are included about 15-20 minutes to save Security Data and the Configuration.
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  • MaryMartinez
    I work for ESC the makers of LaserVault. Check out our Universal Backup Device (UBD).  Fast & easy tape emulation solution for the AS/400.  Uses your existing backup commands.  Compression and encryption.  No VTL needed.  Definitely less complicated than a VTL, faster and easier than tape. 
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  • WoodEngineer
    Perhaps you are backing up some unexpected objects.  For example, we recently discovered that every time we run a RTVDSKINF a new rather large file is created.

    Try running you backup with an output file or report to see exactly which objects are being saved.

    Checking for deleted records, as suggested above is also a good idea.  
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