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Using software compression cluster hyper v

Created: 04 Nov 2012 • Updated: 05 Nov 2012 | 7 comments
This issue has been solved. See solution.

Hello,

I try to use the software compression when backing up a cluster hyper on a NAS but no compression occurs. The size is exactly the same with or without compression.

How could we do to compress our data?

Thanks for help

Regards

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VJware's picture

In the backup job properties, choose the option of  "software" compression... Are you comparing the size via the Backup Exec's UI or from the actual storage itself ?

Are you backing up any data such as images, media files, .cab, .zip etc ?

Calou's picture

Hello,

I choose the option software compression and the size from the storage is the same.

I precise that i backup cluster hyper-v so this is vhd files

Thanks for help

VJware's picture

In the job log, do you see an entry for the compression ? If yes, what ratio does it display ?

 

RahulG's picture

I beleive when  backup is taken using Grt, all the files are backed up in native format and files are not compressed. I am sure if you trun of the GRT and run the backup you would get much Compression .

SOLUTION
Calou's picture

Yes there is:

Below the logs with and witout compression 

 

 

Set Information - VRTSRV::\\ClusterHyperV.VALOREM.com\Hyper-V?HA?VM\SRVTSSAGE

Backup Set Information

Family Name: "Media created 04/11/2012 15:11:38"

Backup of "VRTSRV::\\ClusterHyperV.VALOREM.com\Hyper-V?HA?VM\SRVTSSAGE"

Backup set #1 on storage media #1

Backup set description: "ClusterHyperV.VALOREM.com Backup 00029-Full"

Backup Method: Full - Back up virtual machines

The option to enable the restore of individual items from the database backup was selected for this backup.

 

Backup started on 04/11/2012 at 15:13:41.

Backup Set Detail Information

Media Label: IMG003666

GRT backup set folder: I:\BEData\IMG003666

Backup completed on 04/11/2012 at 15:21:50.

Backup Set Summary

Backed up 4 files in 5 directories.

Processed 16 712 162 600 bytes in  8 minutes and  9 seconds.

Throughput rate: 1956 MB/min

Compression Type: Software

Software compression ratio: 1,8:1

 

Set Information - VRTSRV::\\ClusterHyperV.VALOREM.com\Hyper-V?HA?VM\SRVTSSAGE

Backup Set Information

Family Name: "Media created 03/11/2012 01:00:05"

Backup of "VRTSRV::\\ClusterHyperV.VALOREM.com\Hyper-V?HA?VM\SRVTSSAGE"

Backup set #1 on storage media #1

Backup set description: "ClusterHyperV.VALOREM.com Backup 00010-Full"

Backup Method: Full - Back up virtual machines

The option to enable the restore of individual items from the database backup was selected for this backup.

 

Backup started on 03/11/2012 at 01:02:12.

Backup Set Detail Information

Media Label: IMG003638

GRT backup set folder: E:\BEData\IMG003638

Backup Exec has discovered and protected 'C:' on virtual machine 'TSBDX.VALOREM.COM'.

Backup completed on 03/11/2012 at 01:13:46.

Backup Set Summary

Backed up 69810 files in 13326 directories.

Processed 16 711 851 642 bytes in  11 minutes and  34 seconds.

Throughput rate: 1378 MB/min

 

 

Regards

 

VJware's picture

Backup set summaries are different from both jobs...the first job does mention that it achieved a compression ratio of 1,8:1..

The first job says backed up 4 files in 5 directories, whereas the second one says backed up 69810 files in 13326 directories + Backup Exec has discovered and protected 'C:' on virtual machine 'TSBDX.VALOREM.COM'.

Was the C: excluded from first backup or was there any change in the backup selections ?

Calou's picture

 

Hello,

If i uncheck the  GRT it creates bkf compressed file.

Thanks for help

Regards