>  > We got old Mylex DAC960PD-Ultra-raid-adapter and have tried to use it
>  > with FreeBSD 4.2-stable and 5.0-current. Adapter is configured with
>  > three luns 5+5*9G, 8+8*9G (raid5) and 1+1*2G (mirrored boot disk).
>  > All 9G disks are quite old Seagate Barracuda 9 disks ST19171W.  System
>  > is working quite well but under heavier load we start to get scsi
>  > errors from luns.
>  > This is not so bad but 5-30 minutes after this command system will
>  > always panic.
>  > cd /uu ; dump 0buf 126 - /w | restore xbf 126 -
>  > 
>  > mode = 0100644, inum = 720391, fs = /uu
>  > panic: ffs_valloc: dup alloc
>  >
> Hi,
> I wrote about these problems two weeks ago.  After this we had done
> lot of testing with this system and last 4 days system has been up and
> running.  We still get scsi errors but it doesn't seem to harm system
> drives.  Panic problem hasn't appeared since we changed mylex config.
> Now we are running only 8 disks on two channels and one raid5 system
> drive on both.  Any thoughts why this works better than the old
> configuration?

I don't have any bright ideas about why this would be more reliable, 

... every activity meets with opposition, everyone who acts has his
rivals and unfortunately opponents also.  But not because people want
to be opponents, rather because the tasks and relationships force
people to take different points of view.  [Dr. Fritz Todt]
           V I C T O R Y   N O T   V E N G E A N C E

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