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Cake day: July 8th, 2023

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  • This is madness, but since this is a hobby project and not a production server, there is a way:

    • Shrink the filesystems on the existing disks to free up as much space as possible, and shrink their partitions.
    • Add a new partition to each of the three disks, and make a RAID5 volume from those partitions.
    • Move as many files as possible to the new RAID5 volume to free up space in the old filesystems.
    • Shrink the old filesystems/partitions again.
    • Expand each RAID component partition one at a time by removing it from the array, resizing it into the empty space, and re-adding it to the array, giving plenty of time for the array to rebuild.
    • Move files, shrink the old partitions, and expand the new array partitions as many times as needed until all the files are moved.

    This could take several days to accomplish, because of the RAID5 rebuild times. The less free space, the more iterations and the longer it will take.





  • I worked in retail grocery, but I would imagine the situation is the same in other retail outlets. Everybody who has replied so far has a piece of the answer. Sometimes the sale item is a “loss leader,” sold below cost to bring customers to the store, where they’ll buy other products at the same time. Sometimes the price is jacked up before putting it on sale to hide a price increase, or take advantage of the anchoring effect. Sometimes stores take a loss on a product that isn’t selling well, and they just want to get rid of it to free up space. And sometimes the store’s buyers got a really good deal on purchasing inventory, for many possible reasons, like a bulk purchase, supplier clearing the warehouse, or pre-booking the order well in advance. (Manufacturers often give discounts for guaranteed purchases.)

    But, yes, as you suspect, sometimes the markup is outrageously high, and they can still make a profit when offering 50% off. (Not often in grocery, which is a low-margin business.)




  • This question has really got me thinking about the old days! I thought that it was looking into Debian Linux when trying to repurpose some old IBM PS/2 machines at work, because there were rumors of patchsets for the Linux kernel to support the MicroChannel Architecture bus and ESDI drives. But now I remember that it was actually GeekGadgets, a Unix environment for Amiga based around the ixemul.library. That’s where I first read the GPL, and admired its legal Jiu-Jitsu of using copyright laws to ensure freedom.

    I’ve never been a Windows user on my own machines as a result. I just went from Amiga, to FreeBSD, to Ubuntu.