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H_Sharma's avatar
H_Sharma
Level 6
11 years ago
Solved

Scratch Media

Hello Experts,

We have one tape that is going to expire today in the morning and its afternoon now. Still we could see kilobytes are there in media. Problem is DC in remote

place and we dont have media available for tonight....

1:- We have different pools. Rman is the only pool which have many tapes with differnet retention and its have many active tapes.

2:- We are not using multiple retention per media

3:- We have many active tapes in 1 month retention.

4:- Policies are with multiple retention.

Queries..

1:- Why netbackup did not expire the tape? Its still there?

2:- Can we expire it today? if we dont have media in scratch? Any issue with that manual expiration?

3:-  We have some media in Rman pool with diffenten kind of retentions? If backup fails with 96 error can we put other policies with rman pool?

      any issue with that?

7.6
Backing Up
Backup and Recovery
Basics
Best Practice
NetBackup
Windows Server (2003-2008)
  • Nicolai's avatar
    Nicolai
    11 years ago

    Data Expiration:                01/18/2015 11:02

    The last backup will expire today (my time zone) and then be recycle within 12 hours of that time. Out of the box Netbackup do recycle media every 12 hour.

    You may want to reduce the number of volume pools and retention (if possible)  to get better media utilization. Sometimes those schema has been overengineered without taking in to account different retention and volume pool has a cost of reduce number of concurrent backups and partial full media.

     

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  • H_Sharma's avatar
    H_Sharma
    Level 6
    11 years ago

    NBEMMCMD, Version: 7.6.0.1
    ====================================================================
    Media GUID:                     a
    Media ID:                       yxxxx
    Partner:                        -
    Media Type:                     HCART3
    Volume Group:                   0_TLD
    Application:                    Netbackup
    Media Flags:                    1
    Description:                    Added by Media Manager
    Barcode:                        Txxxx
    Partner Barcode:                --------
    Last Write Host:                NETBKP
    Created:                        05/19/2014 23:40
    Time Assigned:                  12/10/2014 20:22
    First Mount:                    07/10/2014 23:11
    Last Mount:                     12/17/2014 18:02
    Volume Expiration:              -
    Data Expiration:                01/18/2015 11:02
    Last Written:                   12/18/2014 11:02
    Last Read:                      -
    Robot Type:                     TLD
    Robot Control Host:             NETBKP
    Robot Number:                   0
    Slot:                           58
    Side/Face:                      -
    Cleanings Remaining:            -
    Number of Mounts:               89
    Maximum Mounts Allowed:         0
    Media Status:                   FULL MPX
    Kilobytes:                      6407037716
    Images:                         1121
    Valid Images:                   1118
    Retention Period:               3
    Number of Restores:             0
    Optical Header Size Bytes:      1024
    Optical Sector Size Bytes:      0
    Optical Partition Size Bytes:   0
    Last Header Offset:             59275146
    Adamm Guid:                     00000000
    Rsm Guid:                       00000000
    Origin Host:                    NONE
    Master Host:                    NETBKP
    Server Group:                   NO_SHARING_GROUP
    Upgrade Conflicts Flag:
    Pool Number:                    78
    Volume Pool:                    1_Month
    Previous Pool Name:             Scratch
    Vault Flags:                    -
    Vault Container:                -
    Vault Name:                     -
    Vault Slot:                     -
    Session ID:                     -
    Date Vaulted:                   -
    Return Date:                    -
    Media on Hold:                  0
    ====================================================================
    Command completed successfully.

  • RiaanBadenhorst's avatar
    RiaanBadenhorst
    Level 6
    11 years ago

    You can release it with

     

    vmquery -deassignbyid <media ID> <pool_num> 0x0

     

    use vmpool to get the pool number matching "1_Month"

  • Nicolai's avatar
    Nicolai
    Moderator
    11 years ago

    Data Expiration:                01/18/2015 11:02

    The last backup will expire today (my time zone) and then be recycle within 12 hours of that time. Out of the box Netbackup do recycle media every 12 hour.

    You may want to reduce the number of volume pools and retention (if possible)  to get better media utilization. Sometimes those schema has been overengineered without taking in to account different retention and volume pool has a cost of reduce number of concurrent backups and partial full media.

     

  • H_Sharma's avatar
    H_Sharma
    Level 6
    11 years ago

    Hi Nicoi,

    I have made changes and made it 2 hours..... instead of 12 hours. I hope there is no issue on that.

  • mph999's avatar
    mph999
    Level 6
    11 years ago

    When images expire, this is separate from the tape expiring, though it should happen more or less the same time.

    bpmedialist -m <media I'd>

    Should show the tape as expired, before NBU complete expires it fully.

    For tapes in the expired state, you could use bpexpdate as you mention, or bptm -deassignempty

  • Marianne's avatar
    Marianne
    Level 6
    11 years ago

    2 days later and no solution to a seemingly 'urgent' issue...

    Nicolai was right about Image Cleanup that runs every 12 hours.
    Reducing this value may help, but I will not recommend this in a large or very busy environment.

    As a workaround, you can use "bpexpdate -deassignempty" to deassign the expired medias (or "bpexpdate -deassignempty -force") when you are in urgent need of recycling expired media.

  • mph999's avatar
    mph999
    Level 6
    11 years ago

    Opps, my error I meant bptm -delete_all_expired 

    As a further note this only works if the tape is in an expired state, and you want to spped things up.  bptm runs this every 10 mins anyhow, so you wouldn;t have to wait long anyway.