On Wed, Dec 05, 2007 at 10:23:46AM +0000, Khalid Schofield wrote:
> Hi,

quoted text
> this error seems to have been around a bit on the news groups but I see no

> answers only questions (yeh I've got a bible on the shelf next to the Koran

> so I could try that).

>

> I've a DLT4000 tape drive connected to a scsi card in my sun blade 100

> running openbsd 4.2

>

> I'm getting this error in dmesg

>

> st0: 10240-byte record too big

>

>

> When I try to write to the tape I get this error:

>

> # dd if=/dev/zero of=/dev/st0

> dd: /dev/st0: Input/output error

> 1+0 records in

> 0+0 records out

> 0 bytes transferred in 1.138 secs (0 bytes/sec)

>

> I'm guessing its a simple block size thing but if I have to set the block

> size every time It's going to be a major pain.

>

> tar -cvf /dev/st0 /var/mail /home

>

> was going to be my backup system :)

>

> mt seems to be able to set the block size but I've no idea what it should

> be. Are any of you using DLT4000 tape drives under openbsd?

>

> thanks

As mentioned in st(4), use the raw interface.
	-Otto