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Forum Discussion
MushyMiddle
Oct 06, 2021Aspirant
Volume on RN4220 read/only - trying to understand btrfs
Hi. One of the volumes on our RN4220 has become read/only, probably due to free space exhaustion. Simply freeing-up space doesn't seem to help, and I suspect a reboot is in our future - this has ha...
StephenB
Oct 07, 2021Guru - Experienced User
MushyMiddle wrote:
I guess I'm trying to understand why there would be 1TB "unallocated" by default.
What do you mean by "by default"????
"Unallocated" is the most useful type of free space. The report is just showing the amount of unallocated free space at the moment.
MushyMiddle
Oct 07, 2021Aspirant
Upon further digging into online info on btrfs, "unallocated" is an unfortunate choice of terminology, particularly when btrfs reports the volume is full. btrfs seems half-baked at best, and it's too bad NetGEAR chose to use it in its infancy.
So, with zero information in any logs I can find about why this volume went R/O, and apparently lots of so-called free space, what am I left to conclude here?
root@bugs:/backup# mkdir foo mkdir: cannot create directory `foo': No space left on device
I do apprecate the response, but in the end, it doesn't help me to get any closer to solving my problem. I guess, technically, it isn't R/O, as I *can* delete things, but something has decided that, despite there being 20% or so free space, the volume is full.
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