Date: Wed, 7 Dec 2005 19:39:37 +0100 From: "OxY" <oxy@field.hu> To: "Pawel Jakub Dawidek" <pjd@FreeBSD.org> Cc: freebsd-geom@freebsd.org Subject: Re: geom mirror write performance problem Message-ID: <001401c5fb5d$9380cfb0$0201a8c0@oxy> References: <20051207165538.GJ53288@garage.freebsd.pl> <002201c5fb56$bff37590$0201a8c0@oxy> <20051207175359.GK53288@garage.freebsd.pl> <003a01c5fb58$3faca4e0$0201a8c0@oxy> <20051207180821.GL53288@garage.freebsd.pl>
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Sco root# gmirror remove gm0 ad2 Sco root# swapoff /dev/mirror/gm0s2b Sco root# dd if=/dev/zero of=/dev/ad2s1b bs=1m count=1000 dd: /dev/ad2s1b: Operation not supported Sco root# dd if=/dev/zero of=/dev/ad2s2b bs=1m count=1000 dd: /dev/ad2s2b: short write on character device dd: /dev/ad2s2b: end of device 507+0 records in 506+1 records out 530972160 bytes transferred in 18.206418 secs (29164011 bytes/sec) Sco root# dd if=/dev/zero of=/dev/mirror/gm0s2b bs=1m count=1000 dd: /dev/mirror/gm0s2b: short write on character device dd: /dev/mirror/gm0s2b: end of device 507+0 records in 506+1 records out 530972160 bytes transferred in 19.109501 secs (27785768 bytes/sec) >Actually it is possible... You said, when only one component is >connected performance is fine. >You can try something like this: > ># gmirror remove gm0 ad2 ># swapoff /dev/mirror/gm0s1b (if you have one) ----- Original Message ----- From: "Pawel Jakub Dawidek" <pjd@FreeBSD.org> To: "OxY" <oxy@field.hu> Cc: <freebsd-geom@freebsd.org> Sent: Wednesday, December 07, 2005 7:08 PM Subject: Re: geom mirror write performance problem
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