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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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 ?
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
In the job log, do you see an entry for the compression ? If yes, what ratio does it display ?
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 .
If this response answers your concern, please mark it as a "solution"
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
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 ?
Hello,
If i uncheck the GRT it creates bkf compressed file.
Thanks for help
Regards
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