Re: Gmirror performanc (was Re: Gmirror question)

2006-10-25 Thread Willem Jan Withagen
Guido van Rooij wrote: Anyway, I created a gm device and a partition. Now the read performance is not what I'd expect. I have the partition on two SATA devices on different controlers. I get around 60MB/s for each disk. I can get that speed from both disks simultaneously. Now when I dd from the g

Re: Gmirror performanc (was Re: Gmirror question)

2006-10-25 Thread Jeremy Chadwick
On Wed, Oct 25, 2006 at 03:24:55PM +0200, Guido van Rooij wrote: > Anyway, I created a gm device and a partition. Now the read performance > is not what I'd expect. > I have the partition on two SATA devices on different controlers. > I get around 60MB/s for each disk. I can get that speed from bot

Gmirror performanc (was Re: Gmirror question)

2006-10-25 Thread Guido van Rooij
On Wed, Oct 25, 2006 at 12:48:29PM +0200, Patrick M. Hausen wrote: > You don't need to. > > If your bsdlabel partition is N sectors in size, the gmirror > object will have size N - 1. Newfs will not be able to write > to that last sector. You newfs the finished mirror device, > not the individual

Re: Gmirror question

2006-10-25 Thread Tom Judge
Guido van Rooij wrote: On Wed, Oct 25, 2006 at 11:34:25AM +0100, Tom Judge wrote: Guido van Rooij wrote: On Wed, Oct 25, 2006 at 11:07:14AM +0100, Tom Judge wrote: Guido van Rooij wrote: Is it possible to use gmirror to mirror a single BSD partition? If not: is i

Re: Gmirror question

2006-10-25 Thread Guido van Rooij
On Wed, Oct 25, 2006 at 11:34:25AM +0100, Tom Judge wrote: > Guido van Rooij wrote: > >On Wed, Oct 25, 2006 at 11:07:14AM +0100, Tom Judge wrote: > > > >>Guido van Rooij wrote: > >> > >>>Is it possible to use gmirror to mirror a single BSD partition? > >>>If not: is it possible with other too

Re: Gmirror question

2006-10-25 Thread Patrick M. Hausen
Hi! On Wed, Oct 25, 2006 at 12:39:05PM +0200, Guido van Rooij wrote: > > # gmirror label -v -b split -s 2048 data da0s1a da1s1a da2s1a > > > > It's been a while since I last used this; but I believe it will work. > > The problem is that gmirror stores its label in the last sector of the > parti

Re: Gmirror question

2006-10-25 Thread Tom Judge
Guido van Rooij wrote: On Wed, Oct 25, 2006 at 11:07:14AM +0100, Tom Judge wrote: Guido van Rooij wrote: Is it possible to use gmirror to mirror a single BSD partition? If not: is it possible with other tools? Yes it is possible, I found this site had very good examples of settin

Re: Gmirror question

2006-10-25 Thread Guido van Rooij
On Wed, Oct 25, 2006 at 12:18:01PM +0200, Rink Springer wrote: > On Wed, Oct 25, 2006 at 12:07:59PM +0200, Guido van Rooij wrote: > > Is it possible to use gmirror to mirror a single BSD partition? > > If not: is it possible with other tools? > > I think this is possible, have you tried (inspired

Re: Gmirror question

2006-10-25 Thread Guido van Rooij
On Wed, Oct 25, 2006 at 11:07:14AM +0100, Tom Judge wrote: > Guido van Rooij wrote: > >Is it possible to use gmirror to mirror a single BSD partition? > >If not: is it possible with other tools? > > Yes it is possible, I found this site had very good examples of setting > it up: > > http://peopl

Re: Gmirror question

2006-10-25 Thread Stefan Bethke
Am 25.10.2006 um 12:07 schrieb Guido van Rooij: Is it possible to use gmirror to mirror a single BSD partition? Yes. The only caveat is that the mirrored provider will be one sector shorter than the original partition. Stefan -- Stefan Bethke <[EMAIL PROTECTED]> Fon +49 170 346 0140

Re: Gmirror question

2006-10-25 Thread Paul Schenkeveld
Hi Guido, all, On Wed, Oct 25, 2006 at 12:07:59PM +0200, Guido van Rooij wrote: > Is it possible to use gmirror to mirror a single BSD partition? > If not: is it possible with other tools? With gmirror you can mirror everything that's a geom provider, a disk, a slice, a partition or a complex obj

Re: Gmirror question

2006-10-25 Thread Tom Judge
Guido van Rooij wrote: Is it possible to use gmirror to mirror a single BSD partition? If not: is it possible with other tools? -Guido ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe,

Re: Gmirror question

2006-10-25 Thread Rink Springer
On Wed, Oct 25, 2006 at 12:07:59PM +0200, Guido van Rooij wrote: > Is it possible to use gmirror to mirror a single BSD partition? > If not: is it possible with other tools? I think this is possible, have you tried (inspired by man gmirror) # gmirror label -v -b split -s 2048 data da0s1a da1s1a d