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Question

How does JBOD work ?

Please help me understand exactly how JBOD works. I have a mac mini, and an iMac. I have 2 external HDs connected to the mini, and 2 external HDs connected to my iMac. Thats 4 separate enclosures, 4 separate power bricks, and 4 plugs. In a 4 bay JBOD enclosure can I access each HD separately ? Could I backup HD 1 to HD 2 and separately backup HD 3 to HD 4 ? Would I be able to use software like Superduper to backup 1 to2 and 3 to 4 ? Anyones help is greatly appreciated.

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Clarification Request
JBOD .... ????

In reply to: How does JBOD work ?

If the HDs in a JBOD enclosure can show up on your desktop as individual drives .... why can't they be written to and accessed individually ?

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In short.

In reply to: JBOD .... ????

All the JBOD enclosures treat all the drives as a bunch of drives and the OP wanted to write to a physical drive which JBOD is not about.

You seem to think that drive letters are drives. In JBOD, that's not the case.

All Answers

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Answer
We have two ways to tackle this.

In reply to: How does JBOD work ?

1. From the end user perspective it works by joining all the drives to look like one big drive.

In your post you write you want to access each HD on its own which means you do not want JBOD.

2. To get into JBOD at the sublevel we have to first admit that each JBOD on the inside can vary on how it works. Once we decide we can't get into that we return to the surface and think about how JBOD makes a bunch of disks look like one disk.

3. I have a dual drive JBOD. It's a pair of older 750GB 3.5 inch drives. It's going to be recycled soon as it's just USB 2.0 and a new 2TB USB handheld drive that won't break my foot if I dropped it was under 99USD. I'm going to forget JBOD RSN.

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JBOD

In reply to: We have two ways to tackle this.

I didn't want one big drive .......... but I thought i read in several places that each drive would show up on the desktop as individual drives .

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Nope.

In reply to: JBOD

Even on my JBOD while I could partition as I see fit (not advised) you are not in control of where the data lands on what drive.

So given what you want, you don't want JBOD.

That said, I really enjoyed having one big drive and if I need to organize I do that by moving items into folders.

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Answer
Just a thought

In reply to: How does JBOD work ?

Since jbod is not going to work for what you want look into two 2 bay docking stations.
At least that will cut your clutter in half.

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How does JBOD work

In reply to: Just a thought

to continue this thought, very puzzling ........ I know I read in many locations That one way to do JBOD is to show each hard drive as an individual volume on the desk top ? That way in a multi HD enclosure I could back up HD 1 to HD 2 ...... appreciate your help ...... keep finding conflicting answers

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JBOD

In reply to: How does JBOD work

Hard drives may be handled independently as separate logical volumes, or they may be combined into a single logical volume using a volume manager like LVM; such volumes are usually called "spanned".[4] This is an example of showing Jbod as individual HD's

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