Subject: New version of the `ccd'
To: None <netbsd-announce@NetBSD.ORG>
From: Jason Thorpe <>
List: netbsd-announce
Date: 08/17/1995 18:29:49
I've just checked in a new version of the `ccd' (concatenated disk 
driver).  This new version works (or should work) with all ports that can 
talk to disks.  It has been tested on the i386, hp300, and sparc.

		* Not restricted to config.old ports.

		* 8-component limit is gone.

		* Run-time dynamic configuration and unconfiguration
		  with a simple utility.  No more need to re-compile
		  the kernel to add or remove components, or change
		  the interleave factor.

		* Supports disklabels.

		* Lots of internal changes.  See code for more 
		  information.  :-)

Make sure to read the ccdconfig(8) and ccd(4) manual pages for details on 
how to configure a ccd.  If you're currently using a ccd (presumably on 
an hp300), note that the ccd line in your kernel configuration file has 
to change.

For those interested, I'll be posting a performance analysis of a fairly 
large ccd (hopefully) within the next month.

Thanx everybody who suggested changes and helped test this code.

Jason R. Thorpe                             
NASA Ames Research Center                               Home: 408.866.1912
NAS: M/S 258-6                                          Work: 415.604.0935
Moffett Field, CA 94035                                Pager: 415.428.6939