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MSL6030 only sees Changer

BNS
Occasional Advisor

MSL6030 only sees Changer

we have an MSL6030 with an point to point FC connection connected to an HL#L380 with RHEL.

after an drive change we only see the changer and none of the two tape drives.

does any one has an idea on what can be wrong?

we have checked the following:

cable connections (they are connected as shown in the installation manual)
FC connections (loop is up, and from RHEL we can see the Changer)
Discovery in the NSR gives us 4 devices (1 controller, 1 changer and 2 drives)
Mapping is set so that the host currently connected can see all devices.

With regards,

Robin Schipper
16 REPLIES
Johan Guldmyr
Honored Contributor

Re: MSL6030 only sees Changer

Hi, don't have an NSR in front of me now but it is possible to set LUN on the devices?
Have you tried to rescan the bus in RHEL?
BNS
Occasional Advisor

Re: MSL6030 only sees Changer

we can set the Primary Initiator ID, but we can't set the LUN's as far is i know.

we have tried to rescan the bus, but it keeps comming up with only the changer.

seems like something is blocking connections to the drives.
Johan Guldmyr
Honored Contributor

Re: MSL6030 only sees Changer

If you see all the devices in the NSR, supposedly then communication between devices -> NSR -> library controller is working fine.

Have you restarted the library or library controller too? What about the settings on the tape drives themselves? Know you can surf into the libary controller or do some changes to the tape drives on the OCP as well.

BNS
Occasional Advisor

Re: MSL6030 only sees Changer

Yes, we have done an restart of the NSR and the complete library (MSL6030)
no changes,

i was thinking perhaps an driver issue?

unfortunaly i cant remote connect to the library card (no network connected)
so i have to check the drive status manualy.
Johan Guldmyr
Honored Contributor

Re: MSL6030 only sees Changer

Guess it could be a driver issue, but why would that change just by replacing a tape drive? Unless the new tape drive is not the same as what was in there in the first place_
BNS
Occasional Advisor

Re: MSL6030 only sees Changer

the problem is that i don't know what they replaced exactly (i am responsible for the Storage side) but it could be so that there are drives with newer firmware placed.
BNS
Occasional Advisor

Re: MSL6030 only sees Changer

the linux system tells me the following:

Oct 19 11:44:38 pcc206 kernel: ACPI: PCI Interrupt 0000:13:00.0[A] -> GSI 17 (level, low) -> IRQ 177 Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: Found an ISP2432, irq 177, iobase 0xf8860000 Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: Configuring PCI space...
Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: Configure NVRAM parameters...
Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: Verifying loaded RISC code...
Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: Allocated (64 KB) for EFT...
Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: Allocated (1413 KB) for firmware dump...
Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: Waiting for LIP to complete...
Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: LIP reset occured (f8f7).
Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: LIP occured (f8f7).
Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: LOOP UP detected (4 Gbps).
Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0: Topology - (Loop), Host Loop address 0x0 Oct 19 11:44:38 pcc206 kernel: scsi0 : qla2xxx Oct 19 11:44:38 pcc206 kernel: qla2400 0000:13:00.0:
Oct 19 11:44:38 pcc206 kernel: QLogic Fibre Channel HBA Driver: 8.02.09-d0-rhel4.7-04
Oct 19 11:44:38 pcc206 kernel: QLogic HPAE312A - Sun PCI-X 2.0 to 4Gb FC, Dual Channel
Oct 19 11:44:38 pcc206 kernel: ISP2432: PCIe (2.5Gb/s x4) @ 0000:13:00.0 hdma+, host#=0, fw=4.04.00 [IP] [84XX]
Oct 19 11:44:38 pcc206 kernel: Vendor: HP Model: MSL6000 Series Rev: 0520
Oct 19 11:44:39 pcc206 kernel: Type: Medium Changer ANSI SCSI revision: 02
LTT Team
Valued Contributor

Re: MSL6030 only sees Changer

Does the Library front panel show the drives?

Have you checked the device map? Login to the NSR via a serial connection and check if there is a correct device map.

BNS
Occasional Advisor

Re: MSL6030 only sees Changer

yes,

the libray shows the drive status on the OCP,

and in the NSR we have made an device map, with al the SCSI devices in it, and the hosts is assigned to that device map.

so no problems there (as far as i know)
Thomas Martin
Trusted Contributor

Re: MSL6030 only sees Changer

Please check the status of the drives inside the map. It could be that after the replacement all drive are down in the map. Take a screenshot of the map settings, clear the map and fill it up again. Check the entries and save the changes. That should help.

Thomas
BNS
Occasional Advisor

Re: MSL6030 only sees Changer

all the drives are fully operational,

we already tried to clear all the mapping configuration, by removing everything, save it, reboot the library, and added the device map (with all devices) and added the host.

but still no result.
Marino Meloni_1
Honored Contributor

Re: MSL6030 only sees Changer

Can you log in the nsr and collect a report and save it in a *.mht format (html single file format) we can then have a look
Could be the drives have a gap in the lun numbering, or they are not part of the map you are assigning to the specific HBA, or may be a lot of other things


Also can you confirm that the HBA do not see any drive but only the changer?
Johan Guldmyr
Honored Contributor

Re: MSL6030 only sees Changer

Qlogic SANsurfer is available for Linux, that should be able to tell you the answer to Marino's question.
BNS
Occasional Advisor

Re: MSL6030 only sees Changer

we have the solution.

it seems there was no problem with the MSL6030 or the NSR.

but the LUN order was changed (probebly by replacing the cables) and Linux didn't scan for new devices but only for known devices.

we have changed the hardware scan on the Linux side, and now the devices are being discoverd.

thnx all for the reply's
BNS
Occasional Advisor

Re: MSL6030 only sees Changer

the sollution was to do a propper hardware scan on the Linux system.
Johan Guldmyr
Honored Contributor

Re: MSL6030 only sees Changer

Ah!

Nice, thanks for getting back to us with the solution :)