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public:5197_faq:how_do_i_increase_the_number_of_scheduled_concurrent_agentless_cloud_file_and_office365_exchange_backup_jobs_on_my_ahsaycbs_server

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FAQ: How do I increase the number of scheduled concurrent agentless Cloud File and Office 365 Exchange backup jobs on my AhsayCBS server

Article ID: 5197
Reviewed: 27/09/2016

Product Version:
AhsayCBS: 7.9.0.0 or above
OS: All platforms

Description

How do I increase the number of scheduled concurrent agentless Cloud File and Office 365 Exchange backup jobs on my AhsayCBS server?

Steps

Cloud File and Office 365 Exchange Online agentless backup jobs are supported since AhsayCBS version 7.9.0.0.

To ensure agentless backup jobs do not consume all available memory of the AhsayCBS server, the maximum number of scheduled concurrent agentless backup jobs is limited to 2 by default (each agentless backup job requires an average of 170 MB of Java heap memory, for agentless backup sets that contain a lot of files / folder, the memory requirement will increase in proportion).

If the number of backup jobs exceed the maximum concurrent setting, then backup status of any additional jobs will be set to pending, AhsayCBS will attempt to retry and start the pending backup job(s) every minute, until the job can be successfully started.

Note:
Although scheduled agentless backup jobs are restricted by default, there is no restriction on the maximum number of concurrent manual backup or restore jobs that can be started via the AhsayCBS web console.

To increase the maximum number of concurrent Cloud File and Office 365 Exchange scheduled backup jobs on AhsayCBS:

  1. Stop the AhsayCBS service.

  2. Open the afc.opt file in the following path, with a text editor

    ${CBS_Install_Home}/conf/

  3. Add the following line to the end of the file:

    -Dcom.ahsay.obs.core.job.ScheduleBackup.MaxConcurrentJob=MAX_NUMBER

    For example, to set the maximum number of concurrent scheduled agentless jobs to 20:


    afc.opt
    ...
    -Dcom.ahsay.obs.core.job.ScheduleBackup.MaxConcurrentJob=20
    ...
  4. Save and exit from the text editor.

  5. Restart your AhsayCBS service.
Important:
Please make sure that your AhsayCBS server has sufficient RAM installed and that, there are sufficient free memory to accommodate the additional resource requirements for all scheduled agentless backup jobs.

For example, if the current maximum Java heap size setting is 2048 MB and you wish schedule 20 concurrent agentless backup jobs, then it is require that the server has roughly 3400 MB (20 jobs x 170 MB) of additional Java heap memory available. To accomplish that, you will need to increase the maximum Java heap size to around 5500 MB (2048 MB + 3400 MB).

In addition to the extra Java memory usage, agentless backup jobs will also require extra CPU resources from AhsayCBS server due to the compression and encryption process during a backup job.

Refer to the following article for details on how to modify the Java heap size setting: FAQ: How to modify the Java heap size of AhsayCBS? (5002)

Keywords

Office365, Cloud File, agentless, scheduled backup, Java heap size

public/5197_faq/how_do_i_increase_the_number_of_scheduled_concurrent_agentless_cloud_file_and_office365_exchange_backup_jobs_on_my_ahsaycbs_server.1533002094.txt.gz · Last modified: 2019/08/16 10:35 (external edit)

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