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Dav1234's avatar
Dav1234
Level 5
2 years ago

MSDP mount point reaches 90%

Hello Experts, One of my MSDP mount point reaches to 90%.  XXXXXXXX:/msdp/data/dp1/3pdvol # df -h /dev/vx/dsk/nbuapp/XXXX   4.1T  3.7T  443G  90% /msdp/data/dp1/XXXXX There are many containers un...
Linux
  • Nicolai's avatar
    Nicolai
    2 years ago

    hi Dav1234 

    Containers from 2020 can easily contain data block present in 2020 that is still present in 2023. Let's imagine you did a backup of a host in 2020 and still backup that host today, then data block from that time is still required to perform a restore today. Dedupe is basically a compare of unique fingerprint, do I have it, reference it, if not put it in a container file.  First when the reference count to a data block is 0, is the data block removed from the container files.

    Never ever delete files manual from MSDP. Bad things will happen ;)

  • Nicolai's avatar
    Nicolai
    2 years ago

    Correct, the files will not be deleted before all the unique data block (Image data) contained in the files are deleted.

    /Nicolai

Nicolai's avatar
Nicolai
Moderator
2 years ago

hi Dav1234 

Containers from 2020 can easily contain data block present in 2020 that is still present in 2023. Let's imagine you did a backup of a host in 2020 and still backup that host today, then data block from that time is still required to perform a restore today. Dedupe is basically a compare of unique fingerprint, do I have it, reference it, if not put it in a container file.  First when the reference count to a data block is 0, is the data block removed from the container files.

Never ever delete files manual from MSDP. Bad things will happen ;)

  • Dav1234's avatar
    Dav1234
    Level 5
    2 years ago

    Hello Nicolai,

    Means below are the data blocks under containers? and it will not be deleted until all references to these data blocks are deleted?

    -rw-r----- 1 root root 67107160 Mar 14  2020 1012739.bin

    -rw-r----- 1 root root   975520 May 14  2020 1012740.bhd

    -rw-r----- 1 root root 48299517 May 14  2020 1012740.bin

    -rw-r----- 1 root root  1621792 Mar 14  2020 1012741.bhd

    -rw-r----- 1 root root 67107676 Mar 14  2020 1012741.bin

    And