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Quantum LTO-4 SCSI Backup Drive Will Not Mount

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Greg Ondera
Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Apr 12, 2011 at 7:17:05 pm

Have I gone brain dead to get a SCSI drive to back up my XDCam footage while working on a Mac? I can't get the Quantum LTO drive to mount for the life of me, although I see it in "Storage Devices" in Roxio Retrospect. 8.2.0. I know to fire up the drive before I boot the computer. Here are my model numbers:

Power Mac 2 x 3.2 GHz Quad-Core OS 10.6.7
Quantum LTO-4 Model B Half-Height Drive TC-L42BX
ATTO Express PCI UL5D Ultra 320 Adapter with driver installed

So I am using a small pin to large pin 68-pin SCSI cable. Do you think I need an extra SCSI Controller as an interface? Should I have bought the SAS versions instead? If I can get this thing to work, I will live with it, but for the life of me, I can't see how to mount it?

Thanks for any help and I may post this on FCP forum as well.

Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org


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Zane Barker
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Apr 12, 2011 at 10:57:40 pm

Well you say you are on a Power Mac so that would mean you have a PPC processor instead of the newer intel processors. However you also say your running 10.6.7.

10.6 requires an intel processor. So the machine you say you have cannot run the operating system you say your running.

**Hindsight is always 1080p**


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Greg Ondera
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Apr 13, 2011 at 12:18:10 am

Just talked to Quantum and I am indeed seeing the device in System Profiler. It is looking like a Retrospect problem, so I have contacted them but have yet not heard back.

Quantum told me that the LTO-5 drives actually show up on the desktop and allow you to drag and drop files onto it like a hard drive. Wished I had thought about that when I got this one.

Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org


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Scott Vanzo
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Apr 16, 2011 at 5:55:30 am

SCSI is a pretty finicky beast.

Make sure you have the latest firmware for the Quantum LTO-4 drive. I am not sure how Quantum updates their firmware, but they probably have a utility for that. Unless self terminating, make sure your drive has an active ULTRA 320 LVD/SE SCSI terminator attached.

Also, make sure you are using the latest version of the ATTO UL5D driver that is available for the OS you are running, as well as the latest firmware flash file for the UL5D card. You can download these from the ATTO site.

You will also need to download the latest ATTO Config Utility that will report the driver and firmware versions, let you update the firmware, confirm that the card correctly sees/identifies the drive, and set the proper NVRAM settings for your SCSI device.

Our LTO-3 library & drive work best at the default settings, with TAG Command Queuing disabled in the NVRAM settings. I have not worked with a LTO-4 drive, so I cannot offer any specific advice for that.

Since you are running the latest version of the Mac OS, I would start by updating all the drivers and firmware for your hardware.

Good luck, and let us know.


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Greg Ondera
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Apr 16, 2011 at 4:22:23 pm

Thanks Zane & Scott! So here's what's coming down at this point. Quantum says everything is working from their end and there is no need to download firmware on my Mac. This may be because it is LTO-4. They also said LTO-5 actually shows up on the desktop like a hard drive and you can drag and drop stuff into it, although you have to start the Quantum before booting your computer, just like any SCSI device, as well as turning it off after your computer is down. They pointed the finger at Retrospect or at least said to check with Retrospect.

So it shows up in the Mac System Profiler and in "Storage Devices" in Retrospect, but you can't navigate to it and assign anything to it in "Sources" nor "Media Sets" which is what you're supposed to be able to do. So Retrospect asks me for all this information to diagnose it: copies of the log files; system profile; license; and a screenshot. So low and behold, I had no log files. I was to go to \Library\Application\Support\Retrospect but there was no folder for Retrospect there at all. I was to give them the operations_log.utx and assert_log.utx files. Not sure if this is the cause of the problem, since I have yet to run anything at all over to an LTO-4 tape, since the program may not have had a chance to set up a log file with the computer yet, but we shall see. I am awaiting to hear back from Retrospect. They are spending some time with it, so we shall see.

I am posting this somewhat thoroughly so that others who run into problems may glean from this. To be continued.

Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org


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Scott Vanzo
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Apr 16, 2011 at 11:40:00 pm

A few remaining ideas before you hear back from Roxio-

1) This sounds a bit daft, but was there an LTO-4 cartridge in the drive before trying to access the volume in Retrospect? The BRU software that we use requires a tape in the drive when discovering hardware.

2) Fixing Permissions on your System drive in Disk Utility, and then restarting would be a good idea too.

3) FWIW: The Roxio site states that "Snow Leopard is supported with Retrospect 8.1.622 or later for Macintosh". Not sure what version of Retro you are using.


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Greg Ondera
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Apr 17, 2011 at 4:06:54 pm

Wow. All this stuff you have to do with SCSI. I did not have a tape in it but I did at another time when it didn't work. Are we to boot the computer when a tape is in the Quantum? My version of Retrospect is 8.2.

Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org


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Scott Vanzo
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Jul 9, 2013 at 11:01:58 pm

Wow. Old thread...

Christopher-

We're still running a LTO3 Tape Library here off of an ATTO SCSI (UL5D) card on an old (PPC) Xserve with Mac OS Server 10.4.11. It has been running for a long time hardly without a hiccup, but I rarely reboot the machine.

Once in a while (after a reboot) the Library and/or Tape Drive will not be recognized in the ATTO Utility. If this utility does not see your library or drive, neither will your backup software.

My usual remedy is to shut the Xserve down, followed by the tape Library. Wait 30 seconds. Power up the Library or Drive first and let it fully boot (I am not sure if or how long a standalone drive needs to boot). Our Library does a full inventory when it starts up, so I wait for that to be completely done, and make sure the Library is in the default main menu when it is ready. For a single drive, I would probably make sure there is no tape loaded. Only then do I start our server, and check the ATTO utility again before proceeding.


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Christopher Franklin
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Jul 10, 2013 at 2:50:43 pm

Thanks Scott,

That troubleshoot scenario didn't work for me, but we've got a few different variables such as the LTO-4, 10.6.5 OS and We're not using XServe... Those factors may or may not make a difference, but as it stands we don't have a way of retrieving data using the Tanberg LTO-4 and the Intel Mac.

The LTO-4 does however still connect to an older Mac G5, but that system is old, slow and near death.

We will probably upgrade.

http://www.christopherfranklin.com


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Christopher Franklin
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Jul 10, 2013 at 7:58:20 pm

Ok. This is the solution that worked for me.

On the Tanberg support site there are no "Mac Drivers" for the LTO-4, only PC drivers. On the Intel Macs the data retrieval software (Retrospect) has built-in drivers to allow the LTO-4 to talk to the Mac.

Where I was running into trouble was my operating system. For the LTO-4 to communicate to my MacPro I had to upgrade to Retrospect 10 even though my Mac OS 10.6.5 is NOT compatible.

Retrospect 10 only works with Mac OS 10.6.8, but as soon as I installed the upgrade to Retrospect 10 I could access the LTO-4 with the older software Retrospect 8. There must have been some drivers or firmware installed that helped Retrospect 8 actually see the drive.

So, in short, after I installed the ATTO UL5D drivers and all the other standard stuff I had to buy the latest Retrospect Software and use an older version (Retrospect 8) in order for the LTO-4, UL5D and MacPro to live in harmony.

THE END....

http://www.christopherfranklin.com


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Greg Ondera
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Apr 19, 2011 at 4:47:13 am

I am still vexed. Downloaded Bru PE trial and it can't see the LTO-4 drive either. I let the computer fall asleep while taking a rest from this grind and had a kernel panic that pointed a finger at the ATTO card. I wrote ATTO. When I open ATTO Configuration it sees the device but says there are no drivers installed for it. Quantum says I don't need drivers for the LTO-4 tape drive. Seems kinda weird to me. I'm about ready to throw the whole computer out the window but i live in a one-story house. Why can't this be easier? What is really going on?

Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org


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Scott Vanzo
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Apr 19, 2011 at 6:49:13 am

I wouldn't allow any computer with a SCSI adapter to go to sleep. Do not know that they are designed for that...

Make sure the Config Utility has Termination set to AUTO.

The ATTO Config Utility never says there are drivers installed for third party devices, so do not worry about that.

What is the driver version and flash file version of your ATTO card?

What are the NVRAM settings for the channel + scsi id that the LTO-4 drive is connected to?


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Christopher Franklin
Re: Quantum LTO-4 SCSI Backup Drive Will Not Mount
on Jul 9, 2013 at 8:43:16 pm

Did anyone ever get an answer about this? We're dealing with the exact same problem. LTO-4, Retrospect 8.2, ATTO UL5D, Mac Pro 10.6.5, etc.

http://www.christopherfranklin.com


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