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06-04-2012 03:15 PM
06-04-2012 03:15 PM
how to verify that server Linux Suse 10 see HP 1/8 g2 ultr 920 sas autoloader
Hello
I have enclosure c3000, bl460 linux suse 10 server, 2 sas switch, alsoHP 1/8 g2 ultr 920 sas autoloader. I have configured the sas switch with 2 zones (mode swith port), one for the storage disk msa2000 uplink port 1 and 2 in both sw (active and pasive) and the other zone using uplink port 4 for the autoloader., all server has access to storage disk, i have presented lun from it, not problem.
But, the linux servers does not see any autoloader, one of these server in a DP Cell Manager, i have tried scan the autoloader with theses command:
# devbra -dev
# hwinfo --tape
None works, the output is empty, mi question is, how can i verify from linux if the server access the library, i do not know if the problems is in sas sw or drivers linux?
Any advice
Regards.
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06-05-2012 05:55 AM
06-05-2012 05:55 AM
Re: how to verify that server Linux Suse 10 see HP 1/8 g2 ultr 920 sas autoloader
Please run lsscsi. If it detects your autoloader, the hardware-level SAS connection is OK and the problem is probably a missing tape driver.
(lsscsi identifies all SCSI-like devices using generic SCSI protocol commands: it does not require device-type-specific drivers.)
If lsscsi does not detect it, then either the SAS controller driver is missing (unlikely because you're seeing storage disks) or there is a problem with the SAS connection or zoning.
If lsscsi detects your autoloader,run "modprobe st" to load the SCSI tape driver module.
If this helps, add "st" to variable MODULES_LOADED_ON_BOOT, located in file /etc/sysconfig/kernel. This will configure the system to load the module automatically at every boot.
You can do this with YaST too: go to System -> /etc/sysconfig Editor -> System -> Kernel -> MODULES_LOADED_ON_BOOT.
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06-06-2012 11:21 AM
06-06-2012 11:21 AM
Re: how to verify that server Linux Suse 10 see HP 1/8 g2 ultr 920 sas autoloader
Thank MK for your answer
I added the MODULES_LOADED_ON_BOOT="st" then boot the linux and nothing changed, the server does not see any tape (library)
Let me comment you the configuration, i do not know if i have a mistake
c3000 enclosure
2 SAS SW (active/pasive)
2 zone groups, zoning mode: switch port
msa: port 31 y 32 Assigned Multiple
autoloader: port 34 Assigned Multiple
After all, i give the servers (bl460) msa and autoloader access zone
Any detail please let me know
Thanks
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06-07-2012 01:28 AM
06-07-2012 01:28 AM
Re: how to verify that server Linux Suse 10 see HP 1/8 g2 ultr 920 sas autoloader
Please run:
lsscsi
and post the full output.
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06-07-2012 07:23 AM
06-07-2012 07:23 AM
Re: how to verify that server Linux Suse 10 see HP 1/8 g2 ultr 920 sas autoloader
Sorry i had forgotten, these are the ouptup from 3 server linux suse 10:
precc6:~ # lsscsi
[0:0:0:0] cd/dvd HP Virtual DVD-ROM /dev/sr0
precc6:~ #
sdsm70:~ # lsscsi
sdsm70:~ #
dvecc6:~ # lsscsi
dvecc6:~ #
As you see just one server has a output not empty, this is because the precc6 server has a DVD connected from OA.
Regards.