Dear, i have running backup file in server, but result the backup not same with real file in server. file : 29GB result backup : 16GB why should i do? thank you

... Then only the used blocks would be backed up, so you should be glad that it is working as expected

result backup file not same with real file

CraigV
Moderator
11 years ago
...this might be due to compression. Check that tape and see what sort of compression you are getting.

Thanks!
RIDHO07
Level 4
11 years ago
i backup to deduplication. not yet backup to tape.

how can i check compression? because copression status "none".
CraigV
Moderator
11 years ago
...do you know how dedupe works? You then need to check the dedupe ratio you are getting as this is possibly why your backup size is a lot smaller.

The more a dedupe backup runs, the better the results, the better the dedupe ratio and the smaller the backups.

Thanks!
pkh
Moderator
11 years ago
Is this disk thick or thin provisioned? If it is the former, then only the used blocks would be backed up, resulting in less data
RIDHO07
Level 4
11 years ago
disk for destination backup storage or disk want to backup?
pkh
Moderator
11 years ago
I am referring to the disk that you are trying to backup
RIDHO07
Level 4
11 years ago
this disk thin.
pkh
Moderator
11 years ago
... Then only the used blocks would be backed up, so you should be glad that it is working as expected