Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

[Ralf Jung]

Hi,

> Using  'issue_discards=1'  makes any lvremove operation 'irreversible' on
> SSD -  so using 'vgcfgretore'  cannot then fix the mistake of admin when
> he removes LV and he would like to get it back - since restoring TRIMED
> space is just pointless.
> 
> So 'default' being 0 is carefully chosen!

"You can get your data back after you explicitly told the system, as
root, to delete it" is not a feature that anybody should expect, and it
should only be considered if it can be provided without significant
downsides.

Kind regards,
Ralf