Re: Using GTP and glabel for ZFS arrays

2010-07-24 Thread Pawel Tyll
> Easiest way to create sparse eg 20 GB assuming test.img doesn't exist > already No no no. Easiest way to do what you want to do: mdconfig -a -t malloc -s 3t -u 0 mdconfig -a -t malloc -s 3t -u 1 Just make sure to offline and delete mds ASAP, unless you have 6TB of RAM waiting to be filled ;) - n

Re: install touching mbr

2010-07-24 Thread S Roberts
Hello, On Mon, 5 Apr 2010 22:28:25 -0700 Randi Harper wrote: > On Sat, Apr 3, 2010 at 8:05 PM, Bruce Cran wrote: > > On Saturday 03 April 2010 21:58:56 Jeremy Chadwick wrote: > >> On Sat, Apr 03, 2010 at 05:48:12PM -0300, Nenhum_de_Nos wrote: > >> > I just installed a 8.0R amd64 from memstick.

Re: Using GTP and glabel for ZFS arrays

2010-07-24 Thread Dan Langille
On 7/24/2010 7:56 AM, Pawel Tyll wrote: Easiest way to create sparse eg 20 GB assuming test.img doesn't exist already You trim posts too much... there is no way to compare without opening another email. Adam wrote: truncate -s 20g test.img ls -sk test.img 1 test.img No no no. Easiest w

Re: Using GTP and glabel for ZFS arrays

2010-07-24 Thread Dan Langille
On 7/22/2010 4:11 AM, Dan Langille wrote: On 7/22/2010 4:03 AM, Charles Sprickman wrote: On Thu, 22 Jul 2010, Dan Langille wrote: On 7/22/2010 3:30 AM, Charles Sprickman wrote: On Thu, 22 Jul 2010, Dan Langille wrote: On 7/22/2010 2:59 AM, Andrey V. Elsukov wrote: On 22.07.2010 10:32, Dan

Re: Using GTP and glabel for ZFS arrays

2010-07-24 Thread Jeremy Chadwick
On Sat, Jul 24, 2010 at 12:12:54PM -0400, Dan Langille wrote: > On 7/22/2010 4:11 AM, Dan Langille wrote: > >On 7/22/2010 4:03 AM, Charles Sprickman wrote: > >>On Thu, 22 Jul 2010, Dan Langille wrote: > >> > >>>On 7/22/2010 3:30 AM, Charles Sprickman wrote: > On Thu, 22 Jul 2010, Dan Langille w

Re: Using GTP and glabel for ZFS arrays

2010-07-24 Thread Dan Langille
On 7/23/2010 7:42 AM, John Hawkes-Reed wrote: Dan Langille wrote: Thank you to all the helpful discussion. It's been very helpful and educational. Based on the advice and suggestions, I'm going to adjust my original plan as follows. [ ... ] Since I still have the medium-sized ZFS array on the

Re: Using GTP and glabel for ZFS arrays

2010-07-24 Thread John Hawkes-Reed
On 24/07/2010 21:35, Dan Langille wrote: On 7/23/2010 7:42 AM, John Hawkes-Reed wrote: Dan Langille wrote: Thank you to all the helpful discussion. It's been very helpful and educational. Based on the advice and suggestions, I'm going to adjust my original plan as follows. [ ... ] Since I st

gpart -b 34 versus gpart -b 1024

2010-07-24 Thread Dan Langille
You may have seen my cunning plan: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=883310+0+current/freebsd-stable I've been doing some testing today. The first of my tests comparing partitions aligned on a 4KB boundary are in. I created a 5x2TB zpool, each of which was set up like this: gpar

Re: gpart -b 34 versus gpart -b 1024

2010-07-24 Thread Dan Langille
On 7/24/2010 10:44 PM, Dan Langille wrote: I'll run -s 2 and -s 5 tests overnight and will post them in the morning. The -s 2 results are in: -b 34: ---Sequential Output ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block

Re: gpart -b 34 versus gpart -b 1024

2010-07-24 Thread Dan Langille
On 7/24/2010 10:44 PM, Dan Langille wrote: You may have seen my cunning plan: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=883310+0+current/freebsd-stable I've been doing some testing today. The first of my tests comparing partitions aligned on a 4KB boundary are in. I created a 5x2TB zpool, ea

Re: gpart -b 34 versus gpart -b 1024

2010-07-24 Thread Adam Vande More
On Sat, Jul 24, 2010 at 10:58 PM, Dan Langille wrote: > ---Sequential Output ---Sequential Input-- --Random-- > -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- >GB M/sec %CPU M/sec %CPU M/sec %CPU M/sec %CPU M/sec %CPU /sec %CPU >50 110.5 81.0 11