Can you change where an auxiliary job gets its data from?

Last post 11-10-2010, 2:41 PM by Bill Baumann. 7 replies.
Sort Posts: Previous Next
  • Can you change where an auxiliary job gets its data from?
    Posted: 11-08-2010, 8:22 AM

    We have our tape drives on different sites than the maglibs for the same storage poloices. We replicate the data accross from the sites to each other but the auxiliaries pick up from the original site hence the auxiliary perfromance isnt great.

    Is there a way of specifying that the auxiliary job should pick the data up from the replicated area instead of the oroginal storage?

  • Re: Can you change where an auxiliary job gets its data from?
    Posted: 11-08-2010, 9:25 AM

    Yes you can do that. We do the same, not only for aux performance reasons but for uncomplicated availability in a DR situation (related to Media Agts being available in SP data paths).

    So where I used to...

    backup to Disk1 with Inline Synch across the link to Disk2, then Tape 1 AND Tape2 BOTH from Disk1 across the link; now I...

    backup to Disk1, aux across the link to Disk2, then Aux again from Disk1 to Tape1 and Disk2 to Tape2.

    Hope that helps

     

  • Re: Can you change where an auxiliary job gets its data from?
    Posted: 11-08-2010, 5:30 PM
    • zzz is not online. Last active: 12-03-2015, 7:57 PM zzz
    • Top 50 Contributor
    • Joined on 07-06-2010
    • Adept
    • Points 261

    My understanding is the source of auxiliary copy is always the primary copy in one storage policy. You can convert one of the secondary copy to primary copy, but only one primary copy at the time. If you can set two auxiliary copies in one storage policy to get the data from different source, I would like to know how to set it up.

    Thank you.

  • Re: Can you change where an auxiliary job gets its data from?
    Posted: 11-09-2010, 9:24 AM

    Hello zzz,

    You can select any "copy" othen than primary to be the source.

     

  • Re: Can you change where an auxiliary job gets its data from?
    Posted: 11-09-2010, 3:10 PM

    The way I'm reading the OP is that he wants to use the replica copy for the Aux copy.  However, if commvault isn't doing the replication (like you're using EMC's SRDF/A or something), it's not as simple as changing the Aux source.

    What are you using to do this replication?  Is it a dedupe backup unit like Data Domain?

  • Re: Can you change where an auxiliary job gets its data from?
    Posted: 11-09-2010, 4:45 PM
    • zzz is not online. Last active: 12-03-2015, 7:57 PM zzz
    • Top 50 Contributor
    • Joined on 07-06-2010
    • Adept
    • Points 261

    Hi Stephen, thank you very much for the information. :)

  • Re: Can you change where an auxiliary job gets its data from?
    Posted: 11-10-2010, 11:45 AM

    Billis,

    When CV replicates the Magnetic Library we use SDR (Simple Data Replication) this moves the data from one mount path to another.  This copies the Deduplicated volumes to the destination side.

    When using another mechanism to transfer the data like Data Domin the Aux copy will perform a Lan free aux copy. all you have to do is pick the media agent on the replica side with access to the replica library. The software will know to use the replica size for the data. it would be the job of the DD to make sure the data gets replicated.

    AaronA.

  • Re: Can you change where an auxiliary job gets its data from?
    Posted: 11-10-2010, 2:41 PM

    AaronA:

    When using another mechanism to transfer the data like Data Domin the Aux copy will perform a Lan free aux copy. all you have to do is pick the media agent on the replica side with access to the replica library. The software will know to use the replica size for the data. it would be the job of the DD to make sure the data gets replicated.

    AaronA.

     

    This is only true if you have a replicated mag lib setup in CV. Wether we are doing the replication or not does not matter, what matters is how you have the library and its paths created. We will always default to the replica MA for aux and restore if the library\MA being used is on that side.

    To the original question, yes this is possible and is the recommedned way to do it for the reason you quoted, the aux will go over the link from primary otherwise. This has nothing to do with setting the copy to come from primary or anywhere else as the source the primary is still what we want its just the replica side.

    Requires a mag lib setup with the primary and replica path and again it has no bearing on if we do the replication or if it is done outside CV.

    Please let me know if you have further questions on this.

    Thanks,

    Bill

     

The content of the forums, threads and posts reflects the thoughts and opinions of each author, and does not represent the thoughts, opinions, plans or strategies of Commvault Systems, Inc. ("Commvault") and Commvault undertakes no obligation to update, correct or modify any statements made in this forum. Any and all third party links, statements, comments, or feedback posted to, or otherwise provided by this forum, thread or post are not affiliated with, nor endorsed by, Commvault.
Commvault, Commvault and logo, the “CV” logo, Commvault Systems, Solving Forward, SIM, Singular Information Management, Simpana, Commvault Galaxy, Unified Data Management, QiNetix, Quick Recovery, QR, CommNet, GridStor, Vault Tracker, InnerVault, QuickSnap, QSnap, Recovery Director, CommServe, CommCell, SnapProtect, ROMS, and CommValue, are trademarks or registered trademarks of Commvault Systems, Inc. All other third party brands, products, service names, trademarks, or registered service marks are the property of and used to identify the products or services of their respective owners. All specifications are subject to change without notice.
Close
Copyright © 2020 Commvault | All Rights Reserved. | Legal | Privacy Policy