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Joined 1 year ago
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Cake day: July 9th, 2023

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  • Get a cheap SSD for a boot drive. I think your only option given your constraints and your goal is use all three in a RAIDZ1. There’s no real problem with using different kinds of drives in one pool. With this setup though you’ll lose the use of 2TB of capacity on the 4TB drive. 2x2TB + 1x4TB won’t work because you’ll have no redundancy on the 4TB.

    Edit: just realized you meant the 4tb could be mirrored to the 2+2 configured as a striped array. I think that could work, just have to see what truenas supports setting up. That would still meet your criteria of being able to lose one of them. Perhaps the ease of rebuilding a mirror compared to a RAIDZ1 would somewhat cancel out the doubled risk of the 2+2 failing. You’d only have 50% capacity, which in terms of number of usable tb the same as the raidz1 I suggested above.

    I think personally I’d go RAIDZ1 as it seems more straight forward to set up but both of these options work.










  • The calculations necessary to rebuild a failed drive from parity data stored on the other drives means that for the duration of the time that the array is being rebuilt (aka “resilvered”), you’ll have high activity on the other drives. So during that time there’s an increased chance that a drive that was already on the brink of failure is pushed over the edge. If that happens, your data is gone. Like I said it depends on your risk tolerance. You may not feel like it’s worth it in your situation. I personally only run a raidz1. I accept the risk that entails, just as people who use raidz2 accept the increased risk that entails over raidz3. There’s no limit to the amount of redundancy you can add. The level of redundancy that’s needed is a decision that only you/your organization can make.



  • Off-site backup is the proper answer to your question. All this really depends on your own tolerance or comfort with the possibility of losing data. The rule of thumb is that there should be at least three different copies of your data, each in a different physical location. For each of them, there should be redundancy of some kind implemented to guard against hardware failure. Redundancy is typically achieved by using mirrored drives or by using RAID of some kind. Also, if you’d like to know, using RAID in which you can only lose one disk in the array is not typically considered a sufficient level of protection because of the possibility of a cascading drive failure during replacement of a failed disk. It should be at least two.



  • What I often find is people don’t ask the question they should have to receive the information they actually want. So I have to read between the lines and understand their perspective and what led them to ask their question in the first place, then I can actually give them the information they were looking for. For instance, the OP, the Grandma doesn’t want to know the kid’s number. She wants to know the best or most convenient way (from her perspective) to have a voice call with the kid. That might be by having the kid’s phone number, but it might not be.


  • lazyslacker@sh.itjust.workstoADHD memes@lemmy.dbzer0.comForgetting
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    1 year ago

    I’ve been taking notes religiously at work for years. So many notes. I have gone through dozens of note pads over the years. I recently switched from paper to Microsoft To Do. Works great for my purposes since I’m on my computer most of the time anyway. No more bulky note pads with disorganized chicken scratch.