From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: question about raid10 near copy info in man mdadm. Date: Mon, 16 Apr 2012 16:01:10 +1000 Message-ID: <20120416160110.4bde6ee1@notabene.brown> References: <201204161328097657740@gmail.com> <20120416154126.2fb059da@notabene.brown> <201204161346407034012@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/C3l9_ZNdUKGdBZWwuRYyw.i"; protocol="application/pgp-signature" Return-path: In-Reply-To: <201204161346407034012@gmail.com> Sender: linux-raid-owner@vger.kernel.org To: kedacomkernel Cc: linux-raid List-Id: linux-raid.ids --Sig_/C3l9_ZNdUKGdBZWwuRYyw.i Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Mon, 16 Apr 2012 13:46:46 +0800 "kedacomkernel" wrote: > This is the man md about: > When 'near' replicas are chosen, the multiple copies of a given chunk a= re laid out consecutively across > the stripes of the array, so the two copies of a datablock wi= ll likely be at the same offset on two > adjacent devices. "likely" is different from "certainly". In most cases they are the same offset. In some cases they are different offsets. I think "likely" describes that well enough. >=20 > I think the word "similar" is the same.=20 "similar" is not the same as "same", though it is similar ..... "same" means there is no difference. "similar" means there might be a difference, but it is not a big difference. Does that clear it up? NeilBrown --Sig_/C3l9_ZNdUKGdBZWwuRYyw.i Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQIVAwUBT4u1pznsnt1WYoG5AQKWnA/9GaLj1fCaQraTbpwNN3tDeeYelxv0PcJE NvmSP6Sttu+ZKvxFbeYej4U9tJOE87KvupTCSprkPEzph4/DwUxvEkqh00pRVWUd nvDZJBoxl8ddBOEXNp7WOIFX46QuISZt+1gRuqq9PTFS2PvRbYhvS09Lazh3JxYU lb4vECKgPxYPhWJtpCOAc+2ohtOzX/sScOzmqjCSXVpzRW2SFP7crEesjyvoqZEv k//jNoQ00590vqS+7s+DMfuF4G0+5gmVPsCvzPTaiipbjV1OuBucrc0RlDtcFB9v ZrNgcx1YBUk6DXaHxGZkT09Om3JXtu5kdjzRIyqueLoBzoigulrIxLpHZivAROWX qKAKFxpWIm7X4Rudd4SH0SFCi6C6w325JDRuamNZ2mpUHpEHQY+eSwMXn8A4wi92 0G2OFy57jVnEVDLj/Bgjn0NJugmHAKGc0vT3yu3/hPDPlUtXeHPVLhm92OjPRtCd HBpfBZVpVrODlEnd299Ik7ImfypbV81ndaEGhAfFe7l0S/DHTJUG/Rh9SvWYSRrQ 0a/q0H6XKnHf4lj58Ed0ldgCjoVJx+sToTZbM2HJWQ7R2wcxEptLx5comFKZBEhp 26HSiRrTWJ8e0b0tHkP5N/n7snSHwB15cpCO2JzhWikUrVTlxrKISnUiO2eEodjx Z0jdU9bpN8k= =WGiA -----END PGP SIGNATURE----- --Sig_/C3l9_ZNdUKGdBZWwuRYyw.i--