Forum Discussion

shanuintouch's avatar
shanuintouch
Level 4
8 years ago

How to perform cascade OPT-DUP Between 3 storage device?

Hi All, Thanks for your always help!! Currently i am performing a test scenario, which includes cascade OPT-DUP operation. Here is the operation which i need to perform. Cascade Opt-dup from Stor...
7.7
Linux
nbu 7.7
opt-dup
  • sdo's avatar
    sdo
    8 years ago

    i.e. Marianne is saying that with an SLP you can do this...

    ...a three layer cascade:

    --> Backup to STU-A
--> --> Duplication to STU-B
--> --> --> Duplication to STU-C

    ...or this, which uses STU-A as the source to duplicate from for both copies/duplications:

    --> Backup to STU-A
--> --> Duplication to STU-B
--> --> Duplication to STU-C

    .

    N.B:  The only simple automated way to do this is using one SLP.  You cannot use two SLPs, i.e. this will not work:

    SLP1:
--> Backup to STU-A
--> --> Duplication to STU-B

SLP2:
--> Duplication

    ...because an SLP has to start with a "backup" stage.

  • Marianne's avatar
    Marianne
    8 years ago

    bpduplicate is one of those 'trial and error' commands.

    I would personally try with less parameters, e.g.

    bpduplicate -backupid jpvm126_1485283746  -cn <copy_number> -dstunit Test_Su2_temp   

    PS: 
    I am curious about the type of disk pools and storage units you are using?
    'Opt-dup' seems to indicate that this is some kind of dedupe storage? 

    You may want to try bpimmedia with these parameters (again - trial and error): 

    bpimmedia -stype <Storage Server Type> -dp <disk pool name>

     

sdo's avatar
sdo
Moderator

You will have to use the "NetBackup Management / Catalog" functionality, and select "Action:" of "Duplicate", then search correctly, and then perform/request the duplication... all within the Admin Console GUI to perform a manual duplication... or use the CLI command bpduplicate.

To be able to restore from Copy 5, then you will need to ensure that during the last duplication, or in fact during each duplication, that you choose to make the new copy the primary copy.

Remember, NetBackup only ever restores from the primary copy.

shanuintouch's avatar
shanuintouch
Level 4
8 years ago

Dear sdo,

 

Thanks for your suggetsions.

Unfortunately, i am not able to use the NBU GUI, and have to perform through CLI only.

Here i performed the few steps:

  1. Created New DP and STU for STS_A and STS_B
  2. Make the COPY_3(On STS_C) as primary with below command
    • /usr/openv/netbackup/bin/admincmd/bpduplicate -npc 3 -backupid jpvm126_1485283746
    • Here is the output of bpimmedia
      Initially

--------------------------------------------------------------------------------
Backup-ID:            jpvm126_1485283746
 Policy:              pqr1
 Schedule Type:       FULL
 Retention Level      1
 Number of Files:     3
 Compression:         N
 Encryption:          N
 Image Type:          Regular
 Primary Copy:        1
 Expires:             Wed 08 Feb 2017 12:19:06 AM IST
 Image on Hold:       0

  Copy Number:        1
  Fragment Number:    1
  Fragment Size (KB): 2097184
  Media Type:         Disk
  Density:            -
  File Number:        -
  Offset:             -
  Host:               jpvm126
  Device Written On:  -
  MPX:                N
  Expires:            Wed 08 Feb 2017 12:19:06 AM IST
  Retention Level:    1
  MediaID:            @aaagq
  Copy on Hold:       0

  Copy Number:        2
  Fragment Number:    1
  Fragment Size (KB): 2097184
  Media Type:         Disk
  Density:            -
  File Number:        -
  Offset:             -
  Host:               jpvm126
  Device Written On:  -
  MPX:                N
  Expires:            Wed 08 Feb 2017 12:19:06 AM IST
  Retention Level:    1
  MediaID:            @aaagr
  Copy on Hold:       0

  Copy Number:        3
  Fragment Number:    1
  Fragment Size (KB): 2097184
  Media Type:         Disk
  Density:            -
  File Number:        -
  Offset:             -
  Host:               jpvm126
  Device Written On:  -
  MPX:                N
  Expires:            Wed 08 Feb 2017 12:19:06 AM IST
  Retention Level:    1
  MediaID:            @aaags
  Copy on Hold:       0

After changing to primary copy

Backup-ID:            jpvm126_1485283746
 Policy:              pqr1
 Schedule Type:       FULL
 Retention Level      1
 Number of Files:     3
 Compression:         N
 Encryption:          N
 Image Type:          Regular
 Primary Copy:        3
 Expires:             Wed 08 Feb 2017 12:19:06 AM IST
 Image on Hold:       0

  Copy Number:        1
  Fragment Number:    1
  Fragment Size (KB): 2097184
  Media Type:         Disk
  Density:            -
  File Number:        -
  Offset:             -
  Host:               jpvm126
  Device Written On:  -
  MPX:                N
  Expires:            Wed 08 Feb 2017 12:19:06 AM IST
  Retention Level:    1
  MediaID:            @aaagq
  Copy on Hold:       0

  Copy Number:        2
  Fragment Number:    1
  Fragment Size (KB): 2097184
  Media Type:         Disk
  Density:            -
  File Number:        -
  Offset:             -
  Host:               jpvm126
  Device Written On:  -
  MPX:                N
  Expires:            Wed 08 Feb 2017 12:19:06 AM IST
  Retention Level:    1
  MediaID:            @aaagr
  Copy on Hold:       0

  Copy Number:        3
  Fragment Number:    1
  Fragment Size (KB): 2097184
  Media Type:         Disk
  Density:            -
  File Number:        -
  Offset:             -
  Host:               jpvm126
  Device Written On:  -
  MPX:                N
  Expires:            Wed 08 Feb 2017 12:19:06 AM IST
  Retention Level:    1
  MediaID:            @aaags
  Copy on Hold:       0
  3. After that i executed bpduplicate to get the images on second storage server STS_B from STS_C, using below command
    • /usr/openv/netbackup/bin/admincmd/bpduplicate -number_copies 1 -dstunit Test_Su2_temp -dp Test_Dp2_temp -backupid jpvm126_1485283746 -pt Standard -st FULL
      Although this did work but not as expected, it didn't copy the images from STS_C to STS_B, then i mentioned the media id for third storage server as -id @aaags but this time it was failed as
      [root@jpvm126 ~]# /usr/openv/netbackup/bin/admincmd/bpduplicate -number_copies 1 -dstunit Test_Su2_temp -dp Test_Dp2_temp -id @aaags  -backupid jpvm126_1485283746 -pt Standard -st FULL
Duplicate started 01/25/2017 18:40:05
Activity monitor job id = 14
INF - found no images or media matching the selection criteria

 So can you please let me know, where i am going wrong and missing some crucial procedure.

One more thing bpimmedia is displaying the images, but when i am using mediaid, it is showing no image found

[root@jpvm126 ~]# /usr/openv/netbackup/bin/admincmd/bpimmedia -mediaid @aaagq
no entity was found
[root@jpvm126 ~]# /usr/openv/netbackup/bin/admincmd/bpimmedia -mediaid @aaagr
no entity was found
[root@jpvm126 ~]# /usr/openv/netbackup/bin/admincmd/bpimmedia -mediaid @aaags
no entity was found
[root@jpvm126 ~]#

Sorry for my lack of knowledge.

  • shanuintouch's avatar
    shanuintouch
    Level 4
    8 years ago

    Please, any one help on this??

    • Marianne's avatar
      Marianne
      Level 6
      8 years ago

      bpduplicate is one of those 'trial and error' commands.

      I would personally try with less parameters, e.g.

      bpduplicate -backupid jpvm126_1485283746  -cn <copy_number> -dstunit Test_Su2_temp   

      PS: 
      I am curious about the type of disk pools and storage units you are using?
      'Opt-dup' seems to indicate that this is some kind of dedupe storage? 

      You may want to try bpimmedia with these parameters (again - trial and error): 

      bpimmedia -stype <Storage Server Type> -dp <disk pool name>

       

      • shanuintouch's avatar
        shanuintouch
        Level 4
        8 years ago

        Thank you Marianne Ma'am, So much for your  help.

        Now i am able to done the duplication from STS_C to STS_B then STS_B to STS_A.

        After that STS_A has COPY5, and i changed that image to primary.

        Now i am restoring the backup, what i think is as COPY5 is primary so restore should be done through COPY5. So is there any way that i can verify it?