I am not a newbie and appreciate that the following is mandriva-specific issue but it does happen to be the o/s under which my problems arise and, given that I am not familiar with hacking kernels then I do seek advice on what seem to be related issues.

About a week back one server (called MMS, an ancient but reliabel Dell Poweredge 2500 running Mandriva Spring 2009)) started reporting RAID errors every hour such as:
------------------------------------------------------------------
RUNNING CONFIG HAS CHANGED FROM:
File runcfg receiving all output.

AFA0>
COMMAND: container list
Executing: container list
Num Total Oth Chunk Scsi Partition
Label Type Size Ctr Size Usage B:ID:L Offset:Size
----- ------ ------ --- ------ ------- ------ -------------
0 RAID-5 135GB 64KB Open 0:05:0 64.0KB:33.8GB
/dev/sda MMS 0:01:0 64.0KB:33.8GB
0:02:0 64.0KB:33.8GB
0:03:0 64.0KB:33.8GB
0:04:0 64.0KB:33.8GB


AFA0>
COMMAND: disk list
Executing: disk list

B:ID:L Device Type Blocks Bytes/Block Usage Shared Rate
------ -------------- --------- ----------- ---------------- ------ ----
0:00:0 Disk 71132959 512 Initialized NO 160
0:01:0 Disk 71132959 512 Initialized NO 160
0:02:0 Disk 71132959 512 Initialized NO 160
0:03:0 Disk 71132959 512 Initialized NO 160
0:04:0 Disk 71132959 512 Initialized NO 160
0:05:0 Disk 71132959 512 Initialized NO 160

AFA0>
COMMAND: task list
Executing: task list

Controller Tasks

TaskId Function Done% Container State Specific1 Specific2
------ -------- ------- --------- ----- --------- ---------

No tasks currently running on controller

AFA0>
COMMAND: logfile end
Executing: logfile end
TO:
File runcfg receiving all output.

FASTCMD>
COMMAND: container list
Executing: container list
Command Error: <Adapter must be opened before this command is used.>

FASTCMD>
COMMAND: disk list
Executing: disk list
Command Error: <Adapter must be opened before this command is used.>

FASTCMD>
COMMAND: task list
Executing: task list
Command Error: <Adapter must be opened before this command is used.>

FASTCMD>
COMMAND: logfile end
Executing: logfile end
ERROR MESSAGES FROM /var/log/messages ARE:
------------------------------------------------------------------------------

Searching around yielded very little and the solutions I tried (such as creating /dev/afa0 and so on) had no effect.

Concurrently, I have been loosing free space under the root file system. Doing the usual cleanups (purging logs etc.) had no lasting effect. Today, though, I stumbled upon
134402304 sys/devices/pci0000:01/0000:01:02.1
16953856 sys/devices/pci0000:00/0000:00:0e.0
that seem to have strated consuming inordinate amounts of disk.

Hating coincidences, I wonder whether the PCI disk use inflation is a manifestation or cause of the RAID error and what it might tell me about eliminating the RAID error.

Thanks in advance