On 6/7/20 10:42 AM, Beartooth wrote:
On a System76 PC several years old, running F32 fully updated (not
Ubuntu), I see the following:
$ df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 1.6M 7.8G 1% /run
/dev/mapper/fedora-root 49G 16G 31G 35% /
tmpfs 7.8G 60K 7.8G 1% /tmp
/dev/mapper/fedora-home 52G 20G 30G 40% /home
/dev/sda1 976M 252M 658M 28% /boot
/dev/mapper/backup_vg-backup 1.8T 174M 1.7T 1% /.snapshots
tmpfs 1.6G 60K 1.6G 1% /run/user/65536
bash-5.0$
Going into the GUI, right clicking and choosing priorities, I see:
What gui? Right-clicking on what?
Link to block device (inode/blockdevice)
Yes, it's a block device.
So I searched inode, but got over my head in no time. Searching
snapshot was a little more comprehensible, but using what I think it told
me would demand knowledge I lack. I also tried blockdevice, and that
*really* got me into a jungle of jargon.
An inode is the chunk of metadata in the filesystem that describes a
file. You could think of it simply as a directory entry, but it's more
complicated than that. A block device is storage that accesses data in
chunks. For example, hard drives can only access data in chunks of 512
bytes. You can't directly access a specific byte.
I'm wondering whether *any* file on an old machine could be so big
as a terabyte, let alone two. If not, what if anything is df -h telling
me about this machine as compared to my others? Anything about speed or
storage?
It's not a file. It appears to be an lvm volume, kind of like a
partition. It's mounted at /.snapshot, so what does "ls -a /.snapshot"
show you?
I also have a still broader question. Instead of keeping each
machine, as heretofore, as nearly in sync with the others, actually as
close a copy of the others, might it be reasonably safe to keep one for
constant use and the others as supporting specialists of some sort.
That's completely up to you and what you want to use it for.
To figure out what's going on with that storage, run the following four
commands and copy their output:
vgs
lvs
fdisk -l
lsblk -t
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