i have the same problem.

I upgraded to the 9.04 final. 

dmraid -ay 

RAID set "isw_bbafiecdbg_Volume0" already active
ERROR: dos: reading /dev/mapper/isw_bbafiecdbg_Volume0[No such device or address]


dmraid -ay -vvv -d

WARN: locking /var/lock/dmraid/.lock
NOTICE: /dev/sdd: asr     discovering
NOTICE: /dev/sdd: ddf1    discovering
NOTICE: /dev/sdd: hpt37x  discovering
NOTICE: /dev/sdd: hpt45x  discovering
NOTICE: /dev/sdd: isw     discovering
NOTICE: /dev/sdd: isw metadata discovered
NOTICE: /dev/sdd: jmicron discovering
NOTICE: /dev/sdd: lsi     discovering
NOTICE: /dev/sdd: nvidia  discovering
NOTICE: /dev/sdd: pdc     discovering
NOTICE: /dev/sdd: sil     discovering
NOTICE: /dev/sdd: via     discovering
NOTICE: /dev/sdc: asr     discovering
NOTICE: /dev/sdc: ddf1    discovering
NOTICE: /dev/sdc: hpt37x  discovering
NOTICE: /dev/sdc: hpt45x  discovering
NOTICE: /dev/sdc: isw     discovering
NOTICE: /dev/sdc: isw metadata discovered
NOTICE: /dev/sdc: jmicron discovering
NOTICE: /dev/sdc: lsi     discovering
NOTICE: /dev/sdc: nvidia  discovering
NOTICE: /dev/sdc: pdc     discovering
NOTICE: /dev/sdc: sil     discovering
NOTICE: /dev/sdc: via     discovering
NOTICE: /dev/sdb: asr     discovering
NOTICE: /dev/sdb: ddf1    discovering
NOTICE: /dev/sdb: hpt37x  discovering
NOTICE: /dev/sdb: hpt45x  discovering
NOTICE: /dev/sdb: isw     discovering
NOTICE: /dev/sdb: isw metadata discovered
NOTICE: /dev/sdb: jmicron discovering
NOTICE: /dev/sdb: lsi     discovering
NOTICE: /dev/sdb: nvidia  discovering
NOTICE: /dev/sdb: pdc     discovering
NOTICE: /dev/sdb: sil     discovering
NOTICE: /dev/sdb: via     discovering
NOTICE: /dev/sda: asr     discovering
NOTICE: /dev/sda: ddf1    discovering
NOTICE: /dev/sda: hpt37x  discovering
NOTICE: /dev/sda: hpt45x  discovering
NOTICE: /dev/sda: isw     discovering
NOTICE: /dev/sda: jmicron discovering
NOTICE: /dev/sda: lsi     discovering
NOTICE: /dev/sda: nvidia  discovering
NOTICE: /dev/sda: pdc     discovering
NOTICE: /dev/sda: sil     discovering
NOTICE: /dev/sda: via     discovering
DEBUG: _find_set: searching isw_bbafiecdbg
DEBUG: _find_set: not found isw_bbafiecdbg
DEBUG: _find_set: searching isw_bbafiecdbg_Volume0
DEBUG: _find_set: searching isw_bbafiecdbg_Volume0
DEBUG: _find_set: not found isw_bbafiecdbg_Volume0
DEBUG: _find_set: not found isw_bbafiecdbg_Volume0
NOTICE: added /dev/sdd to RAID set "isw_bbafiecdbg"
DEBUG: _find_set: searching isw_bbafiecdbg
DEBUG: _find_set: found isw_bbafiecdbg
DEBUG: _find_set: searching isw_bbafiecdbg_Volume0
DEBUG: _find_set: searching isw_bbafiecdbg_Volume0
DEBUG: _find_set: found isw_bbafiecdbg_Volume0
DEBUG: _find_set: found isw_bbafiecdbg_Volume0
NOTICE: added /dev/sdc to RAID set "isw_bbafiecdbg"
DEBUG: _find_set: searching isw_bbafiecdbg
DEBUG: _find_set: found isw_bbafiecdbg
DEBUG: _find_set: searching isw_bbafiecdbg_Volume0
DEBUG: _find_set: searching isw_bbafiecdbg_Volume0
DEBUG: _find_set: found isw_bbafiecdbg_Volume0
DEBUG: _find_set: found isw_bbafiecdbg_Volume0
NOTICE: added /dev/sdb to RAID set "isw_bbafiecdbg"
DEBUG: checking isw device "/dev/sdb"
DEBUG: checking isw device "/dev/sdc"
DEBUG: checking isw device "/dev/sdd"
DEBUG: set status of set "isw_bbafiecdbg_Volume0" to 16
RAID set "isw_bbafiecdbg_Volume0" already active
INFO: Activating GROUP raid set "isw_bbafiecdbg"
NOTICE: discovering partitions on "isw_bbafiecdbg_Volume0"
NOTICE: /dev/mapper/isw_bbafiecdbg_Volume0: dos     discovering
ERROR: dos: reading /dev/mapper/isw_bbafiecdbg_Volume0[No such device or address]
WARN: unlocking /var/lock/dmraid/.lock
DEBUG: freeing devices of RAID set "isw_bbafiecdbg_Volume0"
DEBUG: freeing device "isw_bbafiecdbg_Volume0", path "/dev/sdb"
DEBUG: freeing device "isw_bbafiecdbg_Volume0", path "/dev/sdc"
DEBUG: freeing device "isw_bbafiecdbg_Volume0", path "/dev/sdd"
DEBUG: freeing devices of RAID set "isw_bbafiecdbg"
DEBUG: freeing device "isw_bbafiecdbg", path "/dev/sdb"
DEBUG: freeing device "isw_bbafiecdbg", path "/dev/sdc"
DEBUG: freeing device "isw_bbafiecdbg", path "/dev/sdd"


storm@storm-server:~$ sudo dmraid -V
dmraid version:		1.0.0.rc15 (2008-09-17) shared 
dmraid library version:	1.0.0.rc15 (2008.09.17)
device-mapper version:	4.14.0


How can i fix this? thx