Re: Disk scrubbing

--===============1702758662089312712==
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--JgQwtEuHJzHdouWu
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Tue, Feb 20, 2018 at 09:44:45AM +0200, Neter wrote:
> =D0=94=D0=B0=D0=BB=D0=B8 =D1=81=D0=B8 =D0=BE=D0=B1=D1=8A=D1=80=D0=BD=D0=
=B0=D0=BB =D0=B2=D0=BD=D0=B8=D0=BC=D0=B0=D0=BD=D0=B8=D0=B5, =D1=87=D0=B5 sp=
arse =D0=B2 dd =D1=81=D0=B5 =D0=BE=D1=82=D0=BD=D0=B0=D1=81=D1=8F =D0=B7=D0=
=B0 input-=D0=B0, =D0=B0 =D0=BD=D0=B5 =D0=B7=D0=B0
> output-=D0=B0, =D0=B8 =D0=B4=D0=B0=D0=BB=D0=B8 =D1=82=D0=BE=D0=B2=D0=B0 =
=D0=BD=D0=B5 =D0=B5 =D0=BF=D1=80=D0=B8=D1=87=D0=B8=D0=BD=D0=B0=D1=82=D0=B0 =
=D0=B4=D0=B0 =D1=81=D0=B8 =D1=81=D0=B5 =D1=81=D0=BF=D1=8A=D0=BD=D0=B0=D0=BB=
 =D1=81 =D0=BD=D0=B5=D0=B3=D0=BE? =D0=9D=D0=BE =D0=BC=D0=BE=D0=B6=D0=B5 =D0=
=B8 =D1=82=D0=BE=D1=87=D0=BD=D0=BE
> =D1=82=D0=BE=D0=B2=D0=B0 =D0=BE=D1=82=D0=BD=D0=BE=D1=88=D0=B5=D0=BD=D0=B8=
=D0=B5 =D0=B4=D0=B0 =E2=80=9E=D0=BE=D0=B1=D1=8A=D1=80=D0=BD=D0=B5=D1=88=E2=
=80=9C (=D0=B2 =D0=BA=D0=B0=D0=B2=D0=B8=D1=87=D0=BA=D0=B8, =D0=B7=D0=B0=D1=
=89=D0=BE=D1=82=D0=BE =D0=BD=D1=8F=D0=BC=D0=B0 =D0=B4=D0=B0 =D0=B5 =D1=82=
=D0=BE=D1=87=D0=BD=D0=BE =D0=BE=D0=B1=D1=80=D1=8A=D1=89=D0=B0=D0=BD=D0=B5),
> =D0=BA=D0=B0=D1=82=D0=BE patch-=D0=B2=D0=B0=D1=88 dd, =D0=B7=D0=B0 =D0=B4=
=D0=B0 =D1=81=D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B8 =D0=B7=D0=B0 =D1=86=D0=B5=
=D0=BB=D1=82=D0=B0.
>=20
> =D0=9C=D0=B5=D0=B6=D0=B4=D1=83 =D0=B4=D1=80=D1=83=D0=B3=D0=BE=D1=82=D0=BE=
, =D1=89=D0=BE=D0=BC =D1=81=D1=82=D0=B0=D0=B2=D0=B0 =D0=B4=D1=83=D0=BC=D0=
=B0 =D0=B7=D0=B0 SSD, =D0=B4=D0=B0 =D0=BD=D0=B0=D0=BF=D0=BE=D0=BC=D0=BD=D1=
=8F, =D1=87=D0=B5 =D1=89=D0=B5 =D0=B8=D0=BC=D0=B0=D1=88 =D0=BF=D0=BE=D0=BB=
=D0=B7=D0=B0 =D0=B7=D0=B0
> =D1=81=D0=BA=D0=BE=D1=80=D0=BE=D1=81=D1=82=D1=82=D0=B0 =D0=BD=D0=B0 =D0=
=B8=D0=B7=D0=BF=D1=8A=D0=BB=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5, =D0=B0=D0=BA=D0=
=BE =D0=BF=D1=83=D1=81=D0=BD=D0=B5=D1=88 =D0=BD=D1=8F=D0=BA=D0=BE=D0=BB=D0=
=BA=D0=BE =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D1=81=D0=B0 =D0=B4=D0=B0 =D1=82=D1=
=80=D0=B8=D1=8F=D1=82 =D1=80=D0=B0=D0=B7=D0=BB=D0=B8=D1=87=D0=BD=D0=B8 =D1=
=87=D0=B0=D1=81=D1=82=D0=B8
> =D0=BE=D1=82 =D0=B4=D0=B8=D1=81=D0=BA=D0=B0, =D0=BD=D0=B5=D0=B7=D0=B0=D0=
=B2=D0=B8=D1=81=D0=B8=D0=BC=D0=BE =D0=B4=D0=B0=D0=BB=D0=B8 =D1=81 dd, xxd =
=D0=B8=D0=BB=D0=B8 =D0=BA=D0=B0=D0=BA=D0=B2=D0=BE=D1=82=D0=BE =D1=82=D0=B0=
=D0=BC =D1=80=D0=B5=D1=88=D0=B8=D1=88 =D0=B4=D0=B0 =D0=BF=D0=BE=D0=BB=D0=B7=
=D0=B2=D0=B0=D1=88.

=D0=92=D1=81=D1=8A=D1=89=D0=BD=D0=BE=D1=81=D1=82 =D0=B0=D0=BA=D0=BE =D0=B3=
=D0=BE =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D1=88 =D0=B2=D1=8A=D1=80=D1=85=D1=83 =
SSD, =D0=B2=D1=81=D0=B8=D1=87=D0=BA=D0=BE *=D0=B1=D0=B8 =D1=82=D1=80=D1=8F=
=D0=B1=D0=B2=D0=B0=D0=BB=D0=BE* =D0=B4=D0=B0 =D0=B1=D1=8A=D0=B4=D0=B5 =D0=
=BC=D0=BD=D0=BE=D0=B3=D0=BE
=D0=BF=D0=BE-=D0=BF=D1=80=D0=BE=D1=81=D1=82=D0=BE: =D0=B1=D0=B8 =D1=82=D1=
=80=D1=8F=D0=B1=D0=B2=D0=B0=D0=BB=D0=BE =D0=B4=D0=B0 =D0=BC=D0=BE=D0=B6=D0=
=B5=D1=88 (=D0=BC=D0=BE=D0=B6=D0=B5 =D0=B1=D0=B8 =D1=81 =D0=BD=D0=BE=D0=B2 =
=D0=B8=D0=BD=D1=81=D1=82=D1=80=D1=83=D0=BC=D0=B5=D0=BD=D1=82, =D0=BD=D0=BE
=D0=B5=D0=BB=D0=B5=D0=BC=D0=B5=D0=BD=D1=82=D0=B0=D1=80=D0=B5=D0=BD) =D0=B4=
=D0=B0 =D0=BA=D0=B0=D0=B6=D0=B5=D1=88 =D0=BD=D0=B0 LVM "discard =D0=BD=D0=
=B0 =D0=B2=D1=81=D0=B8=D1=87=D0=BA=D0=B8 =D1=81=D0=B5=D0=BA=D1=82=D0=BE=D1=
=80=D0=B8 =D0=BD=D0=B0 =D1=82=D0=BE=D0=B7=D0=B8 logical
volume".  =D0=91=D0=B8 =D1=82=D1=80=D1=8F=D0=B1=D0=B2=D0=B0=D0=BB=D0=BE =D0=
=B2 =D1=82=D0=BE=D0=B7=D0=B8 =D0=BC=D0=BE=D0=BC=D0=B5=D0=BD=D1=82 LVM =D0=
=B4=D0=B0 =D1=81=D0=B8 =D0=BF=D0=BE=D0=B3=D0=BB=D0=B5=D0=B4=D0=BD=D0=B5 =D1=
=82=D0=B0=D0=B1=D0=BB=D0=B8=D1=86=D0=B0=D1=82=D0=B0 =D1=81
allocated space =D0=B8 =D0=B4=D0=B0 =D0=BA=D0=B0=D0=B6=D0=B5 "=D0=BC=D0=B8 =
=D1=82=D0=BE 90% =D0=BE=D1=82 =D1=81=D0=B5=D0=BA=D1=82=D0=BE=D1=80=D0=B8=D1=
=82=D0=B5 =D0=B2 =D1=82=D0=BE=D0=B7=D0=B8 logical volume
=D1=81=D0=B0 unallocated, =D1=82=D0=B0=D0=BA=D0=B0 =D1=87=D0=B5 =D0=B7=D0=
=B0 =D1=82=D1=8F=D1=85 =D1=82=D0=BE=D0=B7=D0=B8 discard =D0=BC=D0=B8=D0=BD=
=D0=B0=D0=B2=D0=B0 =D0=B2=D0=B5=D0=B4=D0=BD=D0=B0=D0=B3=D0=B0, =D0=B0 =D0=
=B7=D0=B0
=D0=BE=D1=81=D1=82=D0=B0=D0=BD=D0=B0=D0=BB=D0=B8=D1=82=D0=B5 =D0=B5=D0=B9-=
=D1=81=D0=B5=D0=B3=D0=B0 =D1=89=D0=B5 =D0=BF=D1=80=D0=B0=D1=82=D0=B8=D0=BC =
discard-=D0=BE=D0=B2=D0=B5 =D0=BD=D0=B0 SSD-=D1=82=D0=BE" =D0=B8 =D1=82=D0=
=BE=D0=B2=D0=B0 =D0=B4=D0=B0 =D0=B5 =D0=B2=D1=81=D0=B8=D1=87=D0=BA=D0=BE.
=D0=9C=D0=B0=D0=B9 =D0=B8=D0=BC=D0=B0 =D0=B8=D0=BD=D1=81=D1=82=D1=80=D1=83=
=D0=BC=D0=B5=D0=BD=D1=82=D1=87=D0=B5 blkdiscard, =D0=BD=D0=B0 =D0=BA=D0=BE=
=D0=B5=D1=82=D0=BE =D0=B4=D0=B0 =D0=BC=D0=BE=D0=B6=D0=B5=D1=88 =D0=B4=D0=B0=
 =D0=BC=D1=83 =D0=BA=D0=B0=D0=B6=D0=B5=D1=88 "=D1=86=D0=B5=D0=BB=D0=B8=D1=8F
=D0=B4=D0=B8=D1=81=D0=BA" (=D1=81=D1=8A=D1=81 --zeroout, =D1=80=D0=B0=D0=B7=
=D0=B1=D0=B8=D1=80=D0=B0 =D1=81=D0=B5).  =D0=9D=D0=B5 =D1=81=D1=8A=D0=BC =
=D1=82=D0=B5=D1=81=D1=82=D0=B2=D0=B0=D0=BB =D0=BD=D0=B8=D0=BA=D0=BE=D0=B5 =
=D0=BE=D1=82 =D1=82=D0=B5=D0=B7=D0=B8 "=D0=B1=D0=B8
=D1=82=D1=80=D1=8F=D0=B1=D0=B2=D0=B0=D0=BB=D0=BE" =D0=B4=D0=B5 :)

=D0=98=D0=BD=D0=B0=D1=87=D0=B5 =D1=81=D0=B5 =D0=BF=D0=BE=D1=8F=D0=B2=D0=B8 =
=D0=B8=D0=B4=D0=B5=D1=8F =D0=B4=D0=B0 =D0=BF=D0=B8=D1=82=D0=B0=D1=88 LVM-=
=D0=B0 (=D0=BC=D0=BE=D0=B6=D0=B5 =D0=B1=D0=B8 device mapper-=D1=8A=D1=82 =
=D0=B8=D0=BC=D0=B0
=D0=B8=D0=BD=D1=82=D0=B5=D1=80=D1=84=D0=B5=D0=B9=D1=81 =D0=B7=D0=B0 =D1=82=
=D0=BE=D0=B2=D0=B0) =D0=BA=D0=BE=D0=B8 =D1=82=D0=BE=D1=87=D0=BD=D0=BE =D1=
=87=D0=B0=D1=81=D1=82=D0=B8 =D0=BE=D1=82 volume-=D0=B0 =D1=81=D0=B0 allocat=
ed =D0=B8 =D0=B4=D0=B0 =D1=81=D0=B8
=D0=BD=D0=B0=D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D1=88 =D0=BC=D0=BD=D0=BE=D0=B3=
=D0=BE =D0=BF=D1=80=D0=BE=D1=81=D1=82=D0=BE =D0=B8=D0=BD=D1=81=D1=82=D1=80=
=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D1=87=D0=B5, =D0=BA=D0=BE=D0=B5=D1=82=D0=BE =
=D0=BF=D1=80=D0=B0=D0=B2=D0=B8 writev() =D1=81 =D0=BD=D1=83=D0=BB=D0=B8 =D0=
=B2=D1=8A=D1=80=D1=85=D1=83
=D1=82=D1=8F=D1=85 (=D0=B8=D0=BB=D0=B8 discard =D0=B7=D0=B0 =D1=82=D1=8F=D1=
=85, =D0=BD=D0=BE =D1=82=D0=BE=D0=B2=D0=B0 =D0=BD=D0=B5 =D0=B5 =D1=81=D0=B8=
=D0=B3=D1=83=D1=80=D0=BD=D0=BE, =D1=87=D0=B5 =D1=89=D0=B5 =D1=81=D1=82=D0=
=B0=D0=BD=D0=B5 =D0=BA=D0=B0=D0=BA=D1=82=D0=BE =D1=82=D1=80=D1=8F=D0=B1=D0=
=B2=D0=B0
=D0=B2=D1=8A=D1=80=D1=85=D1=83 HDD).

=D0=9F=D0=BE=D0=B7=D0=B4=D1=80=D0=B0=D0=B2=D0=B8,
=D0=9F=D0=B5=D1=82=D1=8A=D1=80

--=20
Peter Pentchev  [email protected] [email protected] pp-fP4QWU45nsFWk0Htik3J/[email protected]
PGP key:        http://people.FreeBSD.org/~roam/roam.key.asc
Key fingerprint 2EE7 A7A5 17FC 124C F115  C354 651E EFB0 2527 DF13

--JgQwtEuHJzHdouWu
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--===============1702758662089312712==
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--===============1702758662089312712==--