On Mon, 21 Dec 2015 11:25:29 AM Trent W. Buck via luv-main wrote:
> One thing rsnapshot does reasonably well is faking multiple tape
> rotations within the snapshot set.  e.g. you say "1 yearly, 2 monthlies,
> and 7 dailies", and it works out which snapshots to expire.
> I don't know how to do that in btrfs/zfs land.

Just write a shell script to delete the ones you don't want.

I have written scripts for ZFS and BTRFS to have a specified number of 
snapshots stored on a less than daily basis (hourly or every 15 minutes) and a 
specified number of daily snapshots.

You could write scripts to have yearly, monthly, etc.  It's just a bit of 
extra shell scripting.  However the benefits are less (in most cases the vast 
majority of data that's been around for a couple of months will be around for 
several years).  Disk space is all that limits you.

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