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Jan
11
comment Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
@joeqwerty: Thanks for your advice which I have summed up in this answer.
Jan
11
comment Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
@TomTom: Thanks for your advice which I have summed up in this answer.
Jan
11
answered Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
Jan
10
comment Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
I'm afraid you're not quite right since our backup server fulfills a double role as an ordinary server too. So the 4:15 is used to copy the own data of the backup server to the drive that feeds the tape. So I can only subtract the disk to tape time from the total time.
Jan
10
comment Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
It's not just a plain copy. It also kind of compresses the data (there are a lot of 50GB "bkf"(Symantec backup to disk files) around). Maybe it even checks the data which should nearly double the time. I'll have to investigate this further...
Jan
10
revised Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
added detailed time usage
Jan
10
comment Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
I checked the logs and gathering of data from the several servers to the backup server take up only 2:15. But we need 9 hours to copy all gathered data to another internal drive which feeds the tape! The writing to tape accounts for 3:45, giving 15h in total (not 17h as I wrote first). So it doesn't look like it's the network that's slow but the copy of an internal drive to another internal drive... I'll further investigate this. I also added time usage to the question.
Jan
9
comment Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
We don't need to recover files often but the last time something needed to be recovered it was not possible because it has not been backed up ;-). Before that incident our backup was managed by the IT of our mother company. That's why it's up to me now... So I inherited this system and am not quite happy with the current solution. The data is copied over the company network (1gbit is suppose). They also have some TB they copy each evening over the same network (we share the same building). That's what is slowing things down I suppose.
Jan
9
comment Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
The number of times we need to restore data is less than once a year on average. I suppose even it would take me 2 hours to recover a file it would be acceptable as long as it's secure and verifiable!
Jan
9
comment Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
ad 2. The backup software (Symantec Backup Exec 2012) allows for a read test of the tape. I was told (i.e. don't know for sure) that it rereads the whole tape and compares with the data on disk. ad 1. If I do incremental updates Monday to Thursday, if I need to recover data on Friday I may have to search all 4 tapes, right? Or is there an index on each tape so that looking at the latest tape tells me, where the file is? I suppose I also could make differential backups based on the last full backup to speed things up. Is this right?
Jan
8
comment Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
@joeqwerty Thanks for your comment. I added the problems so far at the end of the question. A good solution solves all these problems ;-).
Jan
8
awarded  Editor
Jan
8
revised Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/
added 408 characters in body
Jan
8
awarded  Student
Jan
8
asked Good backup strategy for heterogeneous data consisting of images/databases/office files/svn repositories/