RAID and NFS exports

[Sumit Shah]

FYI the only way I could recover the partitions semi successfully was 
rebuilding the arrays identically and then use gpart to recover the 
partition info.  This would last for anywhere between 1-5 hours before 
the array would get broken.  The only thing that changed on both 
systems when things started acting up was the addition of the line to 
/etc/exports.

What would be the most appropriate list to further get info on to the 
cause of this.  My best guess is there is a glitch in the HPT374 
controller or a bug in the FreeBSD driver.

Thanks,
Sumit


On Friday, July 11, 2003, at 03:34  PM, Sumit Shah wrote:

> Dear FreeBSD gurus,
>
> I apologize in advance if this is not the most appropriate list to 
> post this to, but this seems the best that I can find.  Here is my 
> situation, we have an Abit AT7 motherboard with onboard RAID (HPT374). 
>  It has worked beautifully for us with FreeBSD 4.7 and then 4.8 for a 
> good 8 months or so serving up NFS and Samba.  This morning my 
> /etc/exports looked something like
>
> /data6 machine1 machine2 -mapall=65534
> /data8 machine1 machine2 -mapall=65534
>
> I then added a line so it looked something like:
>
> /data6 machine1 machine2 -mapall=65534
> /data8 machine1 machine2 -mapall=65534
> /data6 -network 10.10.10 -mask 255.255.255.0 -mapall=65534
>
> I sent a HUP to mountd and everything seemed to work fine.  Then I 
> started getting errors similar to:
>
> ad4: hard error reading fsbn  242727552
>
> So I rebooted and the HPT374 controller was complaining that the first 
> disk in the RAID-0 configuration failed.  I thought this might be a 
> bad disk, but we had an identical system with the same EXACT 
> configuration and we started mountd on that with the same exports file 
> from above.  A minute or two later the same type of errors and same 
> complaint by the HPT374 controller about the first disk in the RAID-0 
> array being bad.
>
> I was wondering if there is any, no matter how remote, possibility 
> that by adding that third line to the exports file that the raid-0 got 
> corrupted somehow and if so how to maybe reverse it.  I have left 
> everything else intact nothing has changed on the controller side or 
> freebsd config.
>
> Just as a note, we are not using vinum, but using the created array 
> (ar0) and formatting that as UFS.
>
> Thanks so much for getting thorugh this email!
>
> Sumit
>
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