MSL5026 on RedHat

[Nuno Branco_1]

Hello,

I am using RedHat 8.0 with a custom 2.4.18 Kernel to access my MSL5026
library. Everything was working ok until today morning when i installed
the newest firmware for the MSL5026 Controller (i was having some
problems with Arkeia and the library itself).

Now it detects both tapes on LUN 1 and LUN 2 but it doesn't detect the
library wich used to be /dev/sgd. I also noticed (on windows) that the
libray went from LUN 3 to LUN 4, but there shouldn't be a problem.

I am using the lpfcdd module from emulex, the latest version (4.21g)
acording to their website. I also tryed to OpenSource driver avaiable at their website but the end result is the same, i even tryed to tweak the configuration .c file but nothing :(

Someone could share a resolution to this
problem or give some hints?

Thanks.

Below is the output of cat /proc/scsi/scsi:

Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: COMPAQ Model: DATA ROUTER Rev: 1187
Type: Unknown ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 00 Lun: 01
Vendor: COMPAQ Model: SuperDLT1 Rev: 4B4B
Type: Sequential-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 00 Lun: 02
Vendor: COMPAQ Model: SuperDLT1 Rev: 4B4B
Type: Sequential-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: DEC Model: HSG80CCL Rev: V85F
Type: Unknown ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 02 Lun: 00
Vendor: DEC Model: HSG80CCL Rev: V85F
Type: Unknown ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 03 Lun: 00
Vendor: DEC Model: HSG80CCL Rev: V85F
Type: Unknown ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 04 Lun: 00
Vendor: DEC Model: HSG80CCL Rev: V85F
Type: Unknown ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 00
Vendor: DEC Model: HSG80CCL Rev: V85F
Type: Unknown ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: DEC Model: HSG80CCL Rev: V85F
Type: Unknown ANSI SCSI revision: 02

[Steven E. Protter]

If possible back out the bios upgrade and report the problem.

You also might suceed with a complete reinstallation of the system. Quite risky, uncertain payoff.

SEP

[Nuno Branco_1]

Not quite possible to revert the process. You see, our controller was having problems and our support came with a new controller to the library. The controler already had this Firmware.

I also noticed that on Linux, after i recompiled the new drivers when i do a 'modprobe lpfcdd' it hangs for a while after detecting the 2nd tape (normally the library would be next), then it proceeds for the standard ports on the data switch that i pasted above.

The weird thing is that in Windows it detects everything ok, tapes and library.

[Steven E. Protter]

Back up the data. Twice.

Remove the drivers and LUN's from the system.

Carefullty build them again.

Restore the data.

See if that helps.

SEP

[Huc_1]

If it is seem well under windows, then probably this bios, and physical connections are well,

You could try

#cdrecord scanbus
and
#st -f /dev/st0 status

remplace st0 with what dmesg | grep -B 3 A 3 -i "tape and scanbus tell you for your setup.

Tell us about it, will try help from there

J-P

[Nuno Branco_1]

I don't know if this helps any, but i was there playing with the MSL5026 touch panel and i decided to change some SCSI LUN and then removing and inserting the module.

With the Tapes on LUN 3 and 4 and the MSL on LUN 7 i detect the the MSL correctly and don't detect the tapes. Other combinations give diferent results (when i posted was LUN 1 e 2 for tapes and LUN 4 for the MSL).

Don't know much about SCSI LUNs so I don't know how much it affects my problem, but if someone would care to give me some insight into the matter it would be apreciated.

Thanks

[Nuno Branco_1]

#cdrecord scanbus
and
#st -f /dev/st0 status

I don't have those utilities installed. That's a very basic server setup i have there. Basically a kernel, the Emulex driver for the Fibre Channel connections and the backup software (Arkeia).

I already tryed to deinstall those drivers and install other drivers from Emulex. Same thing... not getting anywhere :(