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JJJamie's avatar
JJJamie
14 years ago

Synthetic full: baseline full and incrementals take forever

Hi,

We had been struggling for some time with backup windows encroaching into operational hours.

One of the features we liked about BE2010 was the synthetic full feature, however it is taking an eternity to complete (approx 4 days for 700gb), we have since reverted to standard daily inc, weekly fulls - disk to disk to tape.

The jobs were created using policies as per the admin guide - is there something I am missing?  Is this a known bug?

I have had experience with commvault and netbackup and know that synthetic fulls can work very well in practise.

We are using BE2010R2 with latest hotfixes.

Thanks

2010
Advanced Disk-Based Backup Option
Backup and Recovery
Backup Exec
Remote Agent for Windows Servers

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  • AdamM's avatar
    AdamM
    Level 4
    14 years ago
    JJJamie,
    I ave having the exact same problem.  I see several posts including one from me a couple years ago that have no replies...(I just posted another one)  I wonder if anyone actually uses this feature who have more than a couple gigs worth of data?  I have synthetics working on my smallest shares up to 300 G.  But the whole point is for it to build the synthetic fulls on larger shares (1-2T) that can't be touched durring the work day. 
     
    I hope someone can give us some insight!
  • Colin_Weaver's avatar
    Colin_Weaver
    Moderator
    14 years ago

    When talking about performance issues please quote the number of files not just the byte count as a lot fo the performance issues with things like syntehtic backup relate directly to the file count, and if you reduce teh fiel counts by splitting your selections that things can run faster