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Why netbackup show images with 5120000 kilobytes ?

hha_mea
Level 6
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Hello Everyone,

As many of you know, when you run a report on Image on disks, you have all images that are stored on disks, with additonal informations, like size, policy, policy type and much more.

But the problem here, as you can read in the title, is that a lot of images have the value 51200000 on the size column or sometimes 51200253, is there an explanation of this?

Thanks for your help.

 

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Accepted Solutions

Nicolai
Moderator
Moderator
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Sound like the Netbackup fragment size to me - take a look in the storage unit configuration.

51200000 = 50 GiB

Netbackup split backup's in fragments, in order to get manageable files sizes. Especially back from the day where most file systems had a 2 TB limitation. So if a backup is 200 GiB, you would have at least 4 fragment files with backup data on a media server if fragment size is set 50 GB.

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Nicolai
Moderator
Moderator
Partner    VIP   

Sound like the Netbackup fragment size to me - take a look in the storage unit configuration.

51200000 = 50 GiB

Netbackup split backup's in fragments, in order to get manageable files sizes. Especially back from the day where most file systems had a 2 TB limitation. So if a backup is 200 GiB, you would have at least 4 fragment files with backup data on a media server if fragment size is set 50 GB.

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hha_mea
Level 6
   VIP   

Thanks @Nicolai for your answer :)

the stu does have 51,200 in maximum fragment size, so There is a backup image that has 93330356 Kbs which has 3 fragment files in images on disk report :

1st (the one with the Expiraton date): 51200000 (fragment number 1)

2nd : 7284 (TIR)

3rd: 42123072 (fragment number 2)

Total : 93330356