General
cancel
Showing results for 
Search instead for 
Did you mean: 

RHEL3 DVD+RW scsi error on DL360

SOLVED
Go to solution
Jamie A. Thom
Occasional Visitor

RHEL3 DVD+RW scsi error on DL360

Hi All!

We're running RHEL3 WS (kernel 2.4.21-27) on our DL-360 with an HP DVD+R/RW 8X SlimLine and we're putting data down onto DVD+R media using mkisofs (v 2.01a32) via growisofs (v 5.16).

Usually it works but occasionally the kernel throws up:

Jan 24 13:59:00 localhost kernel: scsi0 channel 0 : resetting for second half of retries.
Jan 24 13:59:00 localhost kernel: SCSI bus is being reset for host 0 channel 0.
Jan 24 13:59:02 localhost kernel: sr0: CDROM (ioctl) error, command: Test Unit Ready 00 00 00 00 00
Jan 24 13:59:02 localhost kernel: sr00:00: old sense key None
Jan 24 13:59:02 localhost kernel: Non-extended sense class 0 code 0x0

and the write fails. Try again a moment later and off it goes like nothing ever happened.

We're seeing this and...

scsi0 channel 0 : resetting for second half of retries.
SCSI bus is being reset for host 0 channel 0.
SCSI error: host 0 id 0 lun 0 return code = 18000002
Sense class 0, sense error 0, extended sense 0

happening in /var/log/messages pretty often whether the DVD+RW is being used or not.

We've made sure nowt else is mounting the DVD and swapped both the drive and the 44pin IDE cable to no avail.

Looks to me like a problem with the kernel communicating with this drive, possible the ide-scsi emulation.

Anyone else seen this? Got a work around or fix or know of a DVD+RW that doesn't exhibit this behaviour?

Any help would be greatly appreciated!

Cheers,

Jamie
5 REPLIES
Steven E. Protter
Exalted Contributor
Solution

Re: RHEL3 DVD+RW scsi error on DL360

Shalom Jamie,

It is best to use equipment specifically supported and tested by HP. HP storageworks has a DVD RW+ that uses only R+ media. Its quite pricey, but it is certified.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Andrew Cowan
Honored Contributor

Re: RHEL3 DVD+RW scsi error on DL360

Jamie,

I've been doing a lot of hardware testing with RHEL-4.0/Suse/Fedora Linux and IDE/USB CD-ROMS and have found that only Suse works consistantly. Mkisofs uses a different library in the two distros and the explanation I got from Redhat was that Suse were using a much newer library that accepted so-called unstable devices.

In my experience the opposite is true, and although I much prefer Redhat, Suse is a much better bet when it comes to supporting devices.

I have to say that I agree with SEP comment about sticking to supported hardware although I have found that even when doing this there can still be problems.
Jamie A. Thom
Occasional Visitor

Re: RHEL3 DVD+RW scsi error on DL360

Thanks guys, those are both helpful answers. Can anyone tell me which library is liable to be the cause of the problem though?

Cheers,

Jamie
Andrew Cowan
Honored Contributor

Re: RHEL3 DVD+RW scsi error on DL360

I hope this helps:

ldd /usr/bin/cdrecord
libc.so.6 => /lib/tls/libc.so.6 (0x009d2000)
/lib/ld-linux.so.2 (0x009b9000)

ldd /usr/bin/mkisofs
libc.so.6 => /lib/tls/libc.so.6 (0x009d2000)
/lib/ld-linux.so.2 (0x009b9000)
Jamie A. Thom
Occasional Visitor

Re: RHEL3 DVD+RW scsi error on DL360

Thanks again Andrew, that does help.

Steven - do you mean the HP DVD400i?
http://h10025.www1.hp.com/ewfrf/wc/genericDocument?cc=uk&docname=c00044337&lc=en
If not, then which?

Cheers,

Jamie