Kbase P30300: Does probkup automatically detect a new blocking factor on a faster drive?
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
11/12/2008 |
|
Status: Verified
GOAL:
Does probkup automatically detect a new blocking factor on a faster drive?
GOAL:
How to increase the blocking factor when backing up?
FACT(s) (Environment):
All Supported Operating Systems
Progress/OpenEdge Product Family
FIX:
Probkup does not automatically detect a new blocking factor for a drive. To
increase the blocking factor during a probkup, use the blocking factor parameter, -bf. Use the following syntax:
probkup -bf n
The -bf parameter improves the transfer speed to tape-backup devices by specifying that the data is transferred in amounts optimal for the particular backup device. It indicates the blocking factor for blocking data output to the backup device. The blocking factor specifies how many blocks of data are buffered before being transferred to the backup device. NT uses a variable block size up to 4K. For all other operating systems, each block is the size of one disk block (1K on UNIX). The default for the blocking factor parameter is 34.