TorgN
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Backing up with compressions, configuration and what to compress?
Lately I have had problems with backing up due to lack of space on the HP DDS 4mm Cartridge 40GB. I`m running Windows 2000 server and Windows Exchange server. Using Backup Excec v 8.6 rev 3808
For Instance the C: disk has not enabled compress drive to save disk space
On the other hand Backup Excec has enabled Hardware Compression.;
Device tab, properties for HP1, configuration tab. Hardware Compression is enabled
Have I understood it correctly that Backup Excec wil not compress data, unless I have enabled compress drive to save disk space on for instance the C: disk?
Will it help to compress drives. Would it Cause any problems, if so: which drives should be or not be compressed? What about M: or D:
Which Block size , buffer size , buffer count, high water count should I use? And why
For Instance the C: disk has not enabled compress drive to save disk space
On the other hand Backup Excec has enabled Hardware Compression.;
Device tab, properties for HP1, configuration tab. Hardware Compression is enabled
Have I understood it correctly that Backup Excec wil not compress data, unless I have enabled compress drive to save disk space on for instance the C: disk?
Will it help to compress drives. Would it Cause any problems, if so: which drives should be or not be compressed? What about M: or D:
Which Block size , buffer size , buffer count, high water count should I use? And why
Compressing drives is never a option for me. It only causes file and data corruption. Try spanning over to a second disk or if the hard drive is cluttered up, try adding a secind drive.
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Thanks for good answers. Although I had hped to avoid using more than 1 tape per backup.
The tape stopped at 35GB before it demanded a new tape to continue. I have excluded all temprary files and such in hope to reduce amount of data to backup. But.....nooooo. As far as I can tell it is around 2 or 3 GB to much data for having a sucessfull backup with only one cartridge (C5718A). But in a last desperate attempt in reduing the amount of work for me....isn`t there any large files/folders in WINNT or in the exchange that are not critical If I ever would have to use the restore form Tape?
I`ll probably have to do what LucF says,
The tape stopped at 35GB before it demanded a new tape to continue. I have excluded all temprary files and such in hope to reduce amount of data to backup. But.....nooooo. As far as I can tell it is around 2 or 3 GB to much data for having a sucessfull backup with only one cartridge (C5718A). But in a last desperate attempt in reduing the amount of work for me....isn`t there any large files/folders in WINNT or in the exchange that are not critical If I ever would have to use the restore form Tape?
I`ll probably have to do what LucF says,
35GB on a 20/40 tape is pretty good :) I normally only reach about 1.5:1 compression.
Only you know what you can exclude from the backup... maybe some downloads stored somewhere? Back them up on cd-r or DVD-R and exclude them. etc, etc.
LucF
Only you know what you can exclude from the backup... maybe some downloads stored somewhere? Back them up on cd-r or DVD-R and exclude them. etc, etc.
LucF
ASKER
Good Idea.... Tank you
Glad to help :)
LucF
LucF
I'd suggest that you leave all those options: Which Block size , buffer size , buffer count, high water count... as they are by default.
As always, you can try visit : " http://www.veritas.com/be_support/www?cmd=landing&product_code=10 "
Best Regards!