Re: [libvirt] [PATCH] virStorageVolWipe: Document that wiping journaled FS is useless
2015-12-21 13:39 GMT+03:00 Michal Privoznik <mprivozn(a)redhat.com>:
I'm no expert but I think fstrim is no help here - it merely
reclaims
free space on a disk, but raw data is still accessible. At least can be
if disk does not implement DRAT (Deterministic Read After Trim) (read of
zeroes that is).
But better safe than sorry, right? So maybe we should issue fstrim after
all.
Yes, also trim very useful on ssd =), But i don't check does this
helps or not, this is only theory.
--
Vasiliy Tolstov,
e-mail: v.tolstov(a)selfip.ru