intellisnap ( Oracle ASM & NAS questions )

Last post 02-17-2017, 11:10 AM by cadence. 2 replies.
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  • intellisnap ( Oracle ASM & NAS questions )
    Posted: 02-17-2017, 9:55 AM

    Hi.

     

    2 Questions

    1. LAN  Free Oracle ASM Intellisnaps aux copies ?

    Is it possible to configure a LAN free aux backup of LUNS presented to Oracle ASM by also zoning the LUNS to  be presented to the Media Agents(s) so the intellisnaps of the LUNs can be read on the Fibre Channel interface by the media agent thus avoiding streaming data across the LAN ?

    2. NAS Intellisnaps rather than NDMP.

    Is it possible to use intellisnaps to backup NAS filesystems rather than use NDMP ? If so, what NAS are supported ? We keep being told NDMP is so last year, but are trying to understand the alternatives as;

    - Block level backup of a proxy windows server loses all the advantages of intellisnaps.

  • Re: intellisnap ( Oracle ASM & NAS questions )
    Posted: 02-17-2017, 10:18 AM
    • efg is not online. Last active: 03-15-2017, 8:20 AM efg
    • Top 10 Contributor
    • Joined on 02-02-2010
    • CommVault Tinton Falls NJ
    • Expert
    • Points 1,313

    I can answer question 1...

    Yes.  It is possible to perform LAN Free w/Oracle ASM, plus I believe you are referring to "Snap Copy" rather than "Aux Copy"?  Once the snap copy is made it can then be aux copied anywhere else.

    The requirements to doing this would be that you would need to have a proxy that has Oracle installed with a running ASM instance.  It is through that ASM instance that gives us the access to the LUNS from the filer.  Also that proxy would need to be a MediaAgent (By definition a requirement of snap) but that MA would need to be configured with a library to perform the "LAN-Free" data movement.

    Configuring Proxy Clients for Backup Copy Operations

    I'm not that familiar with NDMP to answer #2


    Ernst F. Graeler
    Product Specialist
    Applications and File Systems
  • Re: intellisnap ( Oracle ASM & NAS questions )
    Posted: 02-17-2017, 11:10 AM

    Tks for the reply, your right re terminology, I should have used snap copy.

    I will look up the proxy and setup a config to try to sell this to our DBA's.

    re NDMP

    This is a hoary old chestnut. NDMP was created by Netapp as a solution to backup large fs of small files when they realized doing a traditional tree walk of files was not a runner. So they created a process which takes a snapshot, and depending on how NDMP is setup, either streams the raw data to tape and the metadata to commvault.

     

    This issue is NDMP while taken on by other NAS vendors, is

     

    1. not truely neutral ( try restoring an Netapp NDMP backup to an EMC target )

    2. you cannot 'backup forever', you still need fulls.

    3. other than a netapp specific extension, its not checkpointed, so if a NDMP backup fails, it has to restart from the start unless you are running netapp.

     

    All the above makes it unsatisfactory, so plan B is intellisnap, but getting a clear picture of implementation is difficult to get from any source :(

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