Netbackup OST and DataDomain

[Colette_O_Byrne]

Our backups are going to a DD670; netbackup always reports on the actual size of the backup job - which reflects the true size; I would like to know where do I see the actual amount of data that was actually backed up after deduplication.  From the DD670 dashboard I don't see these statistics - individual job stats.  Any ideas? Thanks, Colette

[Nicolai]

You can do that from the command line (SSH) using command

ddboost storage-unit show [compression] [storage-unit-name]

Example:  ddboost storage-unit show compression dd01_exchange

The command will provide the compression per fragment and look somthing like :

mail.acme.com_1348608129_C1_F43:1348608129:EXCH2010_DAG_ACME:4:1:::

Total files: 1;  bytes/storage_used: 4.6

       Original Bytes:        7,638,226,872

  Globally Compressed:        2,184,278,665

   Locally Compressed:        1,661,566,810

            Meta-data:            6,966,104

[Colette_O_Byrne]

Thanks for that.  However, I don't seem to have this command availabe - we're at DD0S 4.9 and I don't find the equivalent command in the admin guide :(

[Nicolai]

You could upgrade to 5.2.2. The firmware is available thru my.datadomain.com

[Yasuhisa_Ishika]

Use "ost lsu show" instead.

[Colette_O_Byrne]

Hi, yes I managed to use OST lsu show compression lsu-name - however the output was obviously every image that exists on the LSU! 

1. Is there way to truncate the output to just give a certain image?

2. What can I learn from the following output:   the original bytes corresponds with what netbackup sees;  could someone kindly clarify for me the difference  between global, local and the meta-data.  And what is the end result/size of backup image on disk? Thanks for the help!

oracle100.cwr.wto.org_1348671600_C1_F1:1348671600:Oracle_linux2:4:1:::

Total files: 1;  bytes/storage_used: 4.6

       Original Bytes:          324,962,112

  Globally Compressed:          124,158,972

   Locally Compressed:           70,656,000

             Meta-data:              410,240

[Yasuhisa_Ishika]

You can only get statistics at lsu level. No option to pick up specific images.

For 2, this helps.

http://wiki.bonusbits.com/main/HowTo:View_Data_Space_Post_Compression_on_Data_Domain_Device

[Colette_O_Byrne]

Great - yes, that helps a lot.  Many thanks! Colette