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MaAd's avatar
MaAd
Level 3
11 years ago

Lotus Domino Agent slowing down

Hello everyone,

I have a Backup Exec 2010 R3 installation with SP3 installed. I am backing up a domino server with the domino agent functionality. When backing up database files from Domino I noticed that transfer rates start at full speed but gradually slow down over time. For testing I have created a local backup-to-disk folder and included a handful of notes files of different sizes in the backup task. The slowdown occurs no matter what files I select large or small ones. The backup exec server is a physical box and the notes domino server runs on vmware esx.
 

Task manager's network monitor shows usage of around 80-95% on a gbit port at first. However, after approximately 7 or 8 GB of backed up data the rates drop down to around 30-(max)50% percent.

I think that it is not a network problem, because when copying the same files using Windows file copy from the notes server to the backup server I get constant transfer rates of 80-90% with speeds around 100MB/s from start to finish.

Does anyone have any idea? Is there some option in notes that slows down the backup operations?

Thanks for your comments.

Best regards

.

 

Agent for Lotus Domino
Backup and Recovery
Backup Exec
Windows Server (2003-2008)

14 Replies

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  • pkh's avatar
    pkh
    Moderator
    11 years ago

    If you are using DAOS, there will be a slow-down due to the extra processing involved.

  • pkh's avatar
    pkh
    Moderator
    11 years ago

    What is the version of Domino that you are using?

  • Jaydeep_S's avatar
    Jaydeep_S
    Level 6
    11 years ago

    Please confirm if the Domino version and its service pack are supported

    http://www.symantec.com/docs/TECH205797

  • MaAd's avatar
    MaAd
    Level 3
    11 years ago

    sorry for missing all those little important details in my post. The Domino server is running 8.5.2 FP2. According to CL it should be supported.

  • pkh's avatar
    pkh
    Moderator
    11 years ago

    Check that there are no Domino housekeeping jobs, like fixup or compacting, running at the same time as your backup.

  • MaAd's avatar
    MaAd
    Level 3
    11 years ago

    the jobs you mentioned are scheduled to run on the domino server every day at 7, 8 and 10pm. Backup speeds do not make a difference when running during the AM (I know there is some user traffic on it, but average network usage is around 0 - 5%) or during the hours mentioned.

  • pkh's avatar
    pkh
    Moderator
    11 years ago

    You run your backups in the morning when normally users use Domino?  This will slow down the backup.

  • MaAd's avatar
    MaAd
    Level 3
    11 years ago

    No. This was just a test. When I tried the backup operations there was no user activity on the server. I meant general user traffic on the network. Since I tried file copy vs. notes agent with the result of file copy running at 100MB/s on a GBit link, I think that user network traffic does not influence anything here. The strange thing is that it starts to run really fast and then slows down...

  • pkh's avatar
    pkh
    Moderator
    11 years ago

    You cannot compare a backup with a file copy.  A backup has a lot more processing then a file copy.