Delphix Products

 View Only
  • 1.  Self-Service

    Posted 07-24-2019 05:54:00 AM
    Edited by Mayank Ahluwalia 07-24-2019 06:54:24 AM

    #self_service #self-service #virtualization

    Hi Team,

    I have a very basic question.

    If i add a dSource as a source in Data Template, and then add a vDB provisioned from that source as a Container in the created Template, then :

    1. When i refresh the container through Self-Service, does it only refresh the vDB from the source which is the dSource, OR,
    2. It first refreshes the dSource from the real source and then refreshes the vDB to the latest copy ?, OR,
    3. The behavior is configurable to have both options ?

    Regards,
    Mayank

    ​​​


  • 2.  RE: Self-Service

    Posted 07-24-2019 07:27:00 AM
    HI Mayank,

    If you click REFRESH button in SelfService GUI, your Container VDB(s) will be refreshed to the state in which actually is dSource.
    During this operation ONLY container VDB is refreshed to point in time that is your dSource.
    In fact there is no REFRESH option for dSource. dSource for eg. can do another SnapSync operation which will get latest changes from you Source DB.

    The same situation we have in VBD(parent)->VDB(child) configuration, if you click REFRESH in your JS Container, only child VDB will be refreshed to actual parent VDB state.

    Regards
    Marcin

    ------------------------------
    Marcin Kwasninski
    Technical Principal
    Spica Solutions
    ------------------------------



  • 3.  RE: Self-Service

    Posted 07-24-2019 07:33:00 AM

    Thank you Marcin.

    I had the same understanding, but why I am getting confused is because :

    1. The refresh operation is ongoing for about 45 minutes now for the vDB (Container)
    2. In the management app, under Actions - i see a job whose description says "Update Self-Service Source" and it refers to my dSource by name. Wat would this job be doing then ?

    Regards,
    Mayank



    ------------------------------
    Mayank Ahluwalia
    Community Member
    Higher Logic Community Members
    ------------------------------



  • 4.  RE: Self-Service

    Posted 07-24-2019 08:04:00 AM
      |   view attached
    HI Mayank,

    ad 1 We had the same behavior in a low bandwidth or large latency network - check your network to Target

    ad 2 I run refresh operation on VDB in JS container on my lab and I have the same situation - see attached screen.

    If your database is Oracle, please check how recent SnapSync(dSource) you have, and how many archivelogs are generated after last SnapSync on Source.
    Maybe archivelog files causes long recovery operation on your VDB.

    Regards
    Marcin



    ------------------------------
    Marcin Kwasninski
    Technical Principal
    Spica Solutions
    ------------------------------



  • 5.  RE: Self-Service

    Posted 07-24-2019 08:59:00 AM

    Thank you Marcin.

    The dSource has the latest snapshot from 19th July and then lots of logs after that until today, so perhaps that is the reason. Once this completes, I will take a new snapshot for the dSource and then retry the refresh to confirm the observation.

    As for the network performance :

    Delphix --> Target -- bandwidth is 8 Gbps, latency is in micro secs :)



    ------------------------------
    Mayank Ahluwalia
    Community Member
    Higher Logic Community Members
    ------------------------------



  • 6.  RE: Self-Service
    Best Answer

    Posted 07-24-2019 09:06:00 AM
    HI Mayank,

    So the large number archivelogs are causing long refresh(in fact VDB recovery) process.
    Take SnapSync's of dSource recently, it improves VDB refresh process.

    Regards
    Marcin

    ------------------------------
    Marcin Kwasninski
    Technical Principal
    Spica Solutions
    ------------------------------



  • 7.  RE: Self-Service

    Posted 07-24-2019 09:50:00 AM
    Yep, I will try that out once the current process completes.

    I will post the observations here, thanks a lot Marcin :)

    Regards,
    Mayank

    ------------------------------
    Mayank Ahluwalia
    Community Member
    Higher Logic Community Members
    ------------------------------



  • 8.  RE: Self-Service

    Posted 07-25-2019 04:16:00 AM
    Update :

    Took a new snapshot -- 35 minutes
    Refresh the container -- 12 minutes

    So it was indeed taking long due to large number of logs.

    Thanks Marcin


  • 9.  RE: Self-Service

    Posted 07-25-2019 04:30:00 AM
    HI Mayank,

    No problem, it was nice to help you.

    Regards
    Marcin

    ------------------------------
    Marcin Kwasninski
    Technical Principal
    Spica Solutions
    ------------------------------



  • 10.  RE: Self-Service

    Posted 07-30-2019 07:39:00 AM
    Edited by Matthew Griffith 07-30-2019 07:55:11 AM
    I recently wrote a blog post about Self-Service configuration options and after reading this thread I've added an update to explain the behaviour you've observed Mayank.

    https://thedatalobby.kuzodata.com/delphix-self-service-configuration

    Also, it's prompted me to create a discussion asking how people create their SS configurations.

    ------------------------------
    Matthew Griffith
    Principal Consultant and Trainer
    https://thedatalobby.kuzodata.com
    Kuzo Data
    ------------------------------