Greg Oster wrote:

> Markus Kilbinger writes:
>
> > Another question: With the mounted /dev/raid0d 'raidctl -s raid0' just
> > says:
> > 
> >   raidctl: unable to open device file: /dev/raid0d
> > 
> > -> Are all these control and reconstruct raidctl commands only
> > available for unmounted raid devices??
> 
> Are you mounting /dev/raid0d as a filesystem (this is i386, I'm assuming)?
> If so, that might be the problem (I've never tried mounting the "entire raid 
> partition" like that.. I always use a non-"raw" partition like /dev/raid0e).  
> You can certainly view the status of a raid set with mounted filesystems.  
> You can even rebuild the parity on a mounted filesystem... even when I/O is
> being performed to that filesystem...

On NetBSD/pmax, I use the entire `c' partition and can only check the
status using the `a' partition:

	fhfss:~ 6# df /ftp
	Filesystem  1024-blocks     Used    Avail Capacity  Mounted on
	/dev/raid0c    20222934 16359860  2851927    85%    /ftp
	fhfss:~ 7# disklabel raid0
	# /dev/rraid0c:
	type: RAID
	disk: raid
	label: ftp-disk
	flags:
	bytes/sector: 512
	sectors/track: 2048
	tracks/cylinder: 1
	sectors/cylinder: 2048
	cylinders: 20067
	total sectors: 41099040
	rpm: 3600
	interleave: 1
	trackskew: 0
	cylinderskew: 0
	headswitch: 0           # milliseconds
	track-to-track seek: 0  # milliseconds
	drivedata: 0 

	3 partitions:
	#        size   offset     fstype   [fsize bsize   cpg]
	  a: 41099040        0     4.2BSD     1024  8192    32   # (Cyl.    0 - 20067*)
	  c: 41099040        0     4.2BSD     1024  8192    32   # (Cyl.    0 - 20067*)
	fhfss:~ 8# raidctl -s raid0
	raidctl: unable to open device file: /dev/raid0c
	fhfss:~ 9# raidctl -s /dev/raid0a
	Components:
		   /dev/rz8a: optimal
		   /dev/rz1a: optimal
		   /dev/rz9a: optimal
		   /dev/rz2a: optimal
		  /dev/rz10a: optimal
		   /dev/rz3a: optimal
		  /dev/rz11a: optimal
		   /dev/rz4a: optimal
		  /dev/rz12a: optimal
		   /dev/rz5a: optimal
		  /dev/rz13a: optimal
	No spares.

This is on the 1.4 branch a month or so before 1.4.2_ALPHA.

Simon.