On Wed, May 01, 2002 at 10:57:48AM -0700, Bruno Saverio Delbono wrote:
> Hello guyz,
> 
>     I have two 30 GB drives serving as one raid0 device currently on
> my OpenBSD box. Due to many reasons, I want to upgrade to NetBSD
> -current. However, I have a question:
> 
> Can I maintain or preserve all the data on two disks (serving as raid0)
> during reinstall or can I save it?


My experience is that although NetBSD and OpenBSD use ffs fs, there are
some subtle differences that cause the NetBSD not to be able to mount ffs
partitions created under OpenBSD.
More specifically, under NetBSD current (e.g. 1.5ZC) you can mount
ffs partition from OpenBSD 3.0, but when you do a 'ls' or another
fs operation on it you will get an EBADF error if I'm correct.

Therefore I would suggest you to do a full backup (e.g. using tar) and than
reinitialize your disks by fresh NetBSD-like raid/ffs partitions.

Milos

> 
> My raid0.conf looks like:
> 
> START array
> # numRow numCol numSpare
> 1 2 0
> START disks
> /dev/wd0a
> /dev/wd1a
> START layout
> # sectPerSU SUsPerParityUnit SUsPerReconUnit RAID_level_0
> 64 1 1 0
> START queue
> fifo 100
> 
> And my dmesg (OpenBSD 2.9) is:
> 
> RAIDFRAME: protectedSectors is 64
> raid0: Component /dev/wd0a being configured at row: 0 col: 0
>        Row: 0 Column: 0 Num Rows: 1 Num Columns: 2
>        Version: 2 Serial Number: 7 Mod Counter: 230
>        Clean: Yes Status: 0
> raid0: Component /dev/wd1a being configured at row: 0 col: 1
>        Row: 0 Column: 1 Num Rows: 1 Num Columns: 2
>        Version: 2 Serial Number: 7 Mod Counter: 230
>        Clean: Yes Status: 0
> RAIDFRAME: Configure (RAID Level 0): total number of sectors is
> 120060544 (58623 MB)
> RAIDFRAME(RAID Level 0): Using 6 floating recon bufs with no head 
> sep limit nfsd send error 55
> 
> My fstab is:
> 
> /dev/raid0a /raid/0 ffs rw,softdep 1 1
> 
> Thanks 
> 
> Bruno
> 
> -- 
> It is better never to have been born.  But who among us has such luck?
> One in a million, perhaps.



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