Re: What is backup_vg-backup? Can it be so big?

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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:

  Link to block device (inode/blockdevice)

	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.

	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?

The file is probably sparse, i.e. it is only as large as the usage which, at the moment, is 174M. Enough snapshots and it could eventually grow to a max of 1.8T.


	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.

	Advice? Comments?
	

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