Hi all,

This morning I found this entry in the messages:

Oct 15 08:20:25 pippi /kernel: ad6: hard error reading fsbn 1783727 of 0-15 (ad6 bn 
1783727; cn 1769 tn 9 sn 8) trying PIO
Oct 15 08:20:27 pippi /kernel: ad6: DMA problem fallback to PIO mode

>From searching around a bit I noticed that this probably is the
beginning of the end of ad6 and chances are the disk will not come up
when the server is rebooted; I haven't tried that yet :-)

Now ad6 is part of a RAID 1-setup. Does this message mean:
- this blocks are not used any more; while mirorring the lost data is
restored on ad6 on some other part
- you've lost the data and there's no way you ever gonna find out what
it was

What I'm also wondering about is if any dumps made now will be accurate.

Here's some recent atacontrol-output:

root (pippi) /var/cron/tabs>atacontrol list
 ATA channel 0: 
     Master:      no device present 
     Slave:  acd0 <Slimtype COMBO LSC-24081M/3M35> ATA/ATAPI rev 5 
 ATA channel 1: 
     Master:      no device present 
     Slave:       no device present 
 ATA channel 2: 
     Master:  ad4 <IC35L090AVV207-0/V23OA63A> ATA/ATAPI rev 6 
     Slave:       no device present 
 ATA channel 3: 
     Master:  ad6 <IC35L090AVV207-0/V23OA63A> ATA/ATAPI rev 6 
     Slave:       no device present 
 root (pippi) /var/cron/tabs>atacontrol status ar0 
 ar0: ATA RAID1 subdisks: ad4 ad6 status: READY 

Any answers and help on how to proceed from here much appreciated!




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