Newbie - CPIO question

[ICT Infrastructure]

Hi i'm currently trying to redirect the blocksize output in a cpio script, so i can use it later on in the script.

I have tried a pipe into "tee" with no success.

Can anyone help please.

the syntax i have tried is

< file list> |cpio -oB > /dev/rmt/0m|tee /tmp/dat.log

[Thierry Poels_1]

hi,

< file list> |cpio -oB > /dev/rmt/0m 2> /tmp/dat.log

would do the trick. Note that this will send ALL errors to your log file.

good luck,
Thierry.

[Vincenzo Restuccia]

< file list> |cpio -oB > /dev/rmt/0m 2>&1 > /tmp/dat.log

[A. Clay Stephenson]

If you want to increase throughput on most tape devices you should increase the blocking as well by redirecting through yet another pipe.
After the cpio -oB add this pipe | dd ibs=5k obs=1000k of=/dev/rmt/0m. You will have to play with the output block size to optimize performance. You can still redirect the stderr from both cpio and the dd command to file(s) if you like. On a few tape drives the blocking will not matter but on most it will.