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Question

Clone external drives

I'd like to have two separate external drives, one at home and one at work, identically cloned so that my computer will recognize either one and link to the files without a problem. I've tried simply cloning them and giving them the same name, but the computer still recognizes them as different drives. Is there any way to do this?

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Clarification Request
Different drives

In reply to: Clone external drives

Do you mean that the copy gets a different drive letter then the original on the same PC?
Or that the same drive gets different drive letters on different PC's?

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Re: Kees

In reply to: Different drives

I have one laptop, moving between two locations. Each location has an identical copy of a drive. My goal is to be able to switch between the two locations/drives seamlessly without the OS/software knowing the difference.

All Answers

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Answer
Synch Them

In reply to: Clone external drives

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Answer
Another method

In reply to: Clone external drives

is to back up one drive to the other daily.

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Re: Another Method

In reply to: Another method

I am already doing this. Both drives are already exact duplicates of each other. However, when only one of them is mounted, my OS still recognizes them as unique, individual drives.

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Answer
More info...

In reply to: Clone external drives

Maybe I wasn't as clear as possible in OP...

I have two external drives that live in different locations. Even though they are "synced" / "cloned" / "duplicates" of each other, identical name and contents, programs on my computer still see the two drives as different, unique drives with unique file paths.

For example: If I create a new video editing project with assets hosted on Drive_A, if I close the project, eject Drive_A, and mount Drive_B, (already an exact duplicate of Drive_A), then open the project, expecting the media on Drive_B to link up, the software returns an error saying "offline media."

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I can't find your answer to Kees' questions.

In reply to: More info...

Besides that, some apps must be exited during the drive changes. Since there was no answer to Kees' questions, I can't see if it's something else.

-> Not to leave any stone unturned, what if you mount the drive as a folder rather than use its drive letter? Advanced for some but on the web. Example: https://technet.microsoft.com/fr-fr/library/cc753321(v=ws.11).aspx#BKMK_CMD

I apologize about this being very advanced but if the drive letters are the same and the app doesn't like it, then the next trick will be this.

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Re: R. Proffitt

In reply to: I can't find your answer to Kees' questions.

Thanks for the reply. I'm aware this is a unique scenario and I'm prepared to try some advanced techniques if necessary, but I'm just unsure if I'm missing something basic.

Re: Kees q's
- I have one laptop, moving between two locations. Each location has an identical copy of a drive. My goal is to be able to switch between the two locations/drives seamlessly without the OS/software knowing the difference.

People are mentioning "drive letter" but I've never seen that parameter on MacOSX / Disk Utility.

Is there a MacOSX tool I can use to manage that setting on a disk?

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Sorry @e....

In reply to: Re: R. Proffitt

You didn't mention the OS and you know why I went with Windows. This changes the problem entirely to something else as what I know about Windows has been ... thrown out the window.

Please don't leave out details as assumptions lead us to a lot of posts and then get to start over.

-> If I were to debug this one, I'd have to know exactly what the TWO PATHS look like.

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My apologies

In reply to: Sorry @e....

The two paths are simply /volumes/LaCie

After some more digging the problem might be that my drives have unique UUIDs, rather than drive letters.

If this is the problem, would changing the UUIDs to match each other result in the desired outcome of my computer not knowing the difference between the two drives?

Would this, then, be an issue if both drives are mounted at the same time, for future cloning?

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that's an excellent idea

In reply to: My apologies

I use Linux, thought you were first talking about windows. If they both are assigned the same UUID, then it's quite possible it would write the data to both drives.

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Re: UUID

In reply to: My apologies

The UU stands for "Universally Unique". It's stored in the hardware/firmware, and not cloned. So, for any system/OS/program that uses it, the clones aren't identical.

Luckily, an external hard disk is very well transportable. So, take that disk with you between home and work, and all will be fine.

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Not quite

In reply to: Re: UUID

I've cloned partitions and the UUID remained the same on the clone unless I assigned it a new one. Typically I open GParted and have it assign a new UUID to the clone. Mac uses Unix I believe, so may be similar.

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Re: offline media

In reply to: More info...

- What software is this, that says "offline media"?
- You made that "exact copy" after closing the project that used Drive_A and eject that drive? How do you make a copy of an ejected drive?
- Where is that project located that you work on and close and open again? That's on the same PC, I understand?
- Do drive_A and drive_B get the same drive letter?

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Re: Re: offline media

In reply to: Re: offline media

Thanks for the reply!
- I'm using Premiere Pro on a macbook pro.
- The cloning of the drive happens first, before the project is created, with both drives connected. Once cloned, while A/B testing, nothing is being touched on the drives other than mounting/ejecting.
- The project is on the local HD
- As far as "drive letter"... I'm not familiar with this parameter, so this might be my issue. The actual NAME of the drives are identical (both named "LaCie"). Is drive letter relevant for Mac? Everything I'm seeing on google is for Windows.

Basically, it seems as though I'm missing one necessary step to trick my software/OS into recognizing either drive as the same path.

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Answer
OK, MacOS, UUID would have to be same but....

In reply to: Clone external drives

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