rh-l] Redhat ES4 and DLT tape drive

[R P Herrold]

On Fri, 27 May 2005, Greg Wiggill wrote:

> Hi All,

>        anyone experiencing anything similar? Im thinking that a driver
> is having a problem with the 2.6 kernel? Any ideas?

The scsi module often gets auto-cleaned away if the tape 
channel is the only LUN on it.  re-probe it in and check the 
lsmod before fireing off the backup.

I might also thing about pre-computing the file list, with 
find, and then 'cat'ting it, rolling the backup in a later 
phase, rather than the pipelined approach, so that there are 
not 'find' induced waits, as would occur the dd catches up 
with the cpio, and the cpio inout is blocked, as the find has 
not yet offered the next name to handle.

(the reason that the module might get auto-cleaned away 
again, during such waits.)

- Russ herrold