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тАО08-29-2003 03:41 AM
тАО08-29-2003 03:41 AM
MSL5030 FC & Linux
I have two HP Proliant ML580 connected to an MSA1000 storage and MSL5030 through fibre channel (using MSA1000's FC switch).The OS is RedHat Advanced Server 2.1.
The problem is that if I "cat /proc/scsi/scsi" I can see the disk storage, but I only see the MSL's changer, not the drive. If I change the changer ID to 1 and the tape ID to 0 (zero), I see the tape and not the changer.
Obviously, what's happening is that when I see the changer, I can move the tapes but I can't backup anything, and when I see the drive, I can backup to the tape but not move the tapes.
The MSL and drive firmware are already on their latest version and the disk storage works fine. The same happens on both servers.
Does anyone have a clue of what could be wrong?
Thanks in advance.
Pedro.
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тАО08-29-2003 03:49 AM
тАО08-29-2003 03:49 AM
Re: MSL5030 FC & Linux
I think it is the configuration of the Storage Router in the library. Change the default map from Indexed to Auto assigned.
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тАО08-29-2003 05:59 AM
тАО08-29-2003 05:59 AM
Re: MSL5030 FC & Linux
I think I've already tryed all possible configurations on the Router...
I have also a Windows 2000 Server connected to the Fibre Channel switch, and I can see the Changer and the DLT there, so, I don't think it is a problem on the MDR configuration.
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тАО08-29-2003 09:41 AM
тАО08-29-2003 09:41 AM
Re: MSL5030 FC & Linux
Whisc HBA do you use on the Linux server. I remember some HBAs could be configured to see only LUN 0.
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тАО08-29-2003 10:33 AM
тАО08-29-2003 10:33 AM
Re: MSL5030 FC & Linux
It turned out that the settings should be like this: (usually you put the changer first, but this didn't work)
Lun Protocol Bus Type Status Device Specific Address
0 AF 0 CTLR UP Lun= 0
1 SCSI 0 CHGR UP Target= 0 Lun= 0
2 SCSI 0 TAPE UP Target= 1 Lun= 0
3 SCSI 0 TAPE UP Target= 2 Lun= 0
Just give it a try
Leon
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тАО09-09-2003 07:46 AM
тАО09-09-2003 07:46 AM
Re: MSL5030 FC & Linux
The problem is that if I "cat /proc/scsi/scsi" I can see the disk storage, but I only see the MSL's changer, not the drive. If I change the changer ID to 1 and the tape ID to 0 (zero), I see the tape and not the changer..." this the same, now I followed the recommendation of Leon Rosier but it did'nt work, have you solved this issue??? Any information can be useful. Thanks.
Roberto Espinoza
roberto.espinoza@hp.com
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тАО09-09-2003 11:26 PM
тАО09-09-2003 11:26 PM
Re: MSL5030 FC & Linux
See the section device mapping on
http://www.linuxhq.com/ldp/howto/SCSI-Programming-HOWTO.html
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тАО09-22-2003 08:44 PM
тАО09-22-2003 08:44 PM
Re: MSL5030 FC & Linux
I found the solution to this problem.
Anyone with the same symptoms should upgrade to the latest RedHat AS 2.1 Kernel.
I installed the kernel-smp-2.4.9-e.27 and afterwards I could already see the changer and the tape simultaneously. The performance problems were also solved with the upgrade, since my 80GB backup that was taking around 6 hours, is now taking only one.
Pedro d'Alte