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Date:      Tue, 12 Mar 2013 10:53:26 +0400
From:      Lev Serebryakov <lev@FreeBSD.org>
To:        Jim Harris <jimharris@freebsd.org>
Cc:        Konstantin Belousov <kostikbel@gmail.com>, arch@freebsd.org
Subject:   Re: Unmapped buffers: to be merged in several days
Message-ID:  <913397478.20130312105326@serebryakov.spb.ru>
In-Reply-To: <CAJP=Hc9V9HVpdevD3=Qgk812CYwbmc-Q4HgtPyupb7zTfmTB6g@mail.gmail.com>
References:  <20130311091852.GR3794@kib.kiev.ua> <86k3pe1cl3.fsf@ds4.des.no> <20130311182454.GX3794@kib.kiev.ua> <329178079.20130312010425@serebryakov.spb.ru> <20130311211158.GE3794@kib.kiev.ua> <CAJP=Hc9V9HVpdevD3=Qgk812CYwbmc-Q4HgtPyupb7zTfmTB6g@mail.gmail.com>

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Hello, Jim.
You wrote 12 =D0=BC=D0=B0=D1=80=D1=82=D0=B0 2013 =D0=B3., 2:22:47:

JH> Please note that XOR checksumming support only exists in the
JH> E5-1600/2400/2600/4600 series (Sandy Bridge Xeon) and C5500/C3500 series
JH> (Jasper Forest - based on Nehalem Xeon) processors.  The SNB Xeon series
  And  what  about  ICHxR/ICHxDO (where x =3D 7, 8, 9, 10) chipsets? They s=
upport
software RAID5 in Windows drivers, is it support pure-software? I
understand, that it is not true-hardware RAID, but does they have XOR
engine for unmapped buffers?

--=20
// Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>




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