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ArcServe 11.5 ... HP MSL 5026

I have an HP MSL 5026 on my SAN. The backup server is running ArcServe 11.5. I upgraded from 11.5 to 11.1 a few weeks ago. This past thursday many of my slots were coming up as unreadable. When I do an inventory I get mixed results either it displays the media correctly or it show the slot as completely empty. I have put new tapes into the library and still we are getting the problem. I ran HP's diagnostic on the drives and it came up with one or more critical errors on one of the tape drives (it has 2 SDL320 drives) The technician came out yesterday and replaced that tape - even though when he got here we couldn't reporduce the critical errors message. After replacing drive 2 I was still getting the unreadable media problem. So to make sure it wasnt a problem with the first drive I put the first drive offline thru Arcserve and did another inventory. Only the new drive reading the media but same problem. After doing repeated inventories I got all the slots to show up as empty or blank media last night. When I came in this morning its telling me to insert blank media to complete the job!! I checked and several of the slots are showing up as unreadable in that job group. I'm new to ArcServe and the MSL SAN library. I inserted a tape through the mail slot hoping it would go ahead and write to that tape but I don't see any activity on the job. What are the next steps I should take to diagnose this problem?

Thanks MUCH!
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Chadwhite
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Chadwhite
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1 Solution
 
dovidmichelCommented:
Is the ARCserve server running Windows 2003?
Is the Stor Mini Port version of he HBA driver being used?
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dovidmichelCommented:
Regardless on the above answers updates should be installed.

http://supportconnectw.ca.com/public/storage/downloads/nt/115/basbr115-solpatch.asp
QO77091 ZIP 598 MB 03/22/06 NT - BAB R11.5 WINDOWS - SP 1  
QO78545 ZIP 13.1 MB 04/27/06 NT -DEVICE SUPPORT UPDATE 4

If the Stor Port driver is being used, does it have to be, or can the SCSI Mini Port version of the driver be used?
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ChadwhiteAuthor Commented:
The base level arcserve is installed on a Windows 2000 box with sp4.
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NFR key for Veeam Agent for Linux

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dovidmichelCommented:
Ok so the SCSI Mini port driver is being used. In that case from within the OS Device Manager disable the tape drives and library and then restart the system. After that run Device Configuration again.
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ChadwhiteAuthor Commented:
I'll give that a try this evening when I can reboot the machine.
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ChadwhiteAuthor Commented:
Ok I think I have discovered the problem. This past week I installed a Windows 2003 box with Websense Enterprise. It's connected to the SAN for purposes of backup. When I look in device manager for that server I see the library and both the tape drives. I disabled the devices and then did an invntory on my library thru my backup server - It worked. However, everytime I restart that 2003 box I have to go back in and disable the library and tape drives - and if that box is rebooted during a backup it ultimately screws up the process. My backups are after hours and the only time I can reboot my servers is after hours so I can't simply NOT reboot during a backup. I have tried uninstalling the devices, but at startup the computer automatically adds them back into the system - without any prompt whatsoever. One time that I don't actually want MS's PNP to work! I have also gone to the extreme of disabling the removable devices service. I'm not sure that this has any effect on tape devices over the SAN.
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dovidmichelCommented:
With the devices disabled I would not expect them to be re-enabled, but I have seen it before but it was a one time thing. After the device was disabled again and the system was restarted it no longer automatically re-enabled the device.
 
Perhaps this will help.

Microsoft issued Knowledge Base Article 842411 which describes a problem with Windows 2003 and tape backup on SAN.  The Knowledge Base article gives instructions on adding a registry key to the "subkey that corresponds to your storage device."  The following instructions can be used along with the Knowledge Base article to determine which subkey needs to be modified.  Be sure to heed the warning within the Knowledge Base Article about backing up the registy before making any modifications and about how important it is to understand how to restore and edit the registy.
Disabling Autorun for a tape drive or group of tape drives is a three step process.
1.      You must first determine which device driver(s) is controlling the tape drive(s)
2.      You must then modify the device driver(s) to add the AutoRun key and set it to a value of 0
3.      The last step is to reboot the server
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CetusMODCommented:
PAQed with points refunded (500)

CetusMOD
Community Support Moderator
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