From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roman Mamedov Subject: Re: mismatch_cnt and Raid6 Date: Thu, 21 Apr 2011 19:45:15 +0600 Message-ID: <20110421194515.719b3fa7@natsu> References: <4DB02A77.8000902@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/U=v=UUsAn9Y+sU56X1Qi_Pn"; protocol="application/pgp-signature" Return-path: In-Reply-To: <4DB02A77.8000902@gmail.com> Sender: linux-raid-owner@vger.kernel.org To: Andrew Falgout Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids --Sig_/U=v=UUsAn9Y+sU56X1Qi_Pn Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Thu, 21 Apr 2011 08:00:39 -0500 Andrew Falgout wrote: > I got an error last week from a new raid6 array about a mismatch_cnt. I= =20 > did some reading online, performed a repair action on the array,=20 > performed a check action, and checked for the mismatch_cnt again. The=20 > number was greatly reduced, but it was still there. According to mdadm,= =20 > everything appears to be working fine. All the drives are passing short= =20 > tests on smartctl. >=20 > What is mismatch_cnt really? Should I even be concerned about this? =20 > The array is giving me 25-30MB/sec performance on an sshfs mount over=20 > the network. With a local copy I can see speeds of 50 to 60MB/sec. Hello, What kind of SATA cards/controllers do you use? --=20 With respect, Roman --Sig_/U=v=UUsAn9Y+sU56X1Qi_Pn Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk2wNOsACgkQTLKSvz+PZwglUACeNbMbrXeY9UBAUbXygd3yaZK+ xwsAnjEGhiLEYzgFZvtsbue0GuPUA1O8 =TFWD -----END PGP SIGNATURE----- --Sig_/U=v=UUsAn9Y+sU56X1Qi_Pn--