How to set block size for CPIO in HPUX

Hi,

One of our internal tool runs cpio command to archive certain files, but I receive an error as follows.

CPIO Failure (operation would block)

When i debugged, i assume that this an error due to block size..

My question are,

How to find the block size in HP-UX??

How to set the block size in CPIO command???

Thank you

What are you typing to:
1) Create the archive
2) Explode the archive

When do you get the error message?
Do you get any other messages?

How big is the archive?

Is there more than one computer involved? What is the exact Operating System and version on each computer?