Re: Does FreeBSD start slices at head boundaries?

2012-07-07 Thread Wojciech Puchar
it without any problem. It _may_ be possible that some systems like Windows have trouble with this approach, what trouble? Windows doesn't probably see anything. anyway i would not risk running windows with FreeBSD containing disk connected at the same time anyway. it's always risky. To

Re: Does FreeBSD start slices at head boundaries?

2012-07-07 Thread Wojciech Puchar
Ah the FAQ http://www.freebsd.org/doc/en/books/faq/disks.html#DANGEROUSLY-DEDICATED I don't think it's dangerous either. Thanks for your explanations. While it's far simpler. Anyway i wasn't aware it's called that way as i don't use installer ___

Re: Does FreeBSD start slices at head boundaries?

2012-07-07 Thread Wojciech Puchar
disks. Maybe you get a few kb of extra space. Don't do it. because? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org

Re: Does FreeBSD start slices at head boundaries?

2012-07-07 Thread Wojciech Puchar
Is there any performance advantage to using a dedicated disk layout no. it is simplicity adventage, as well as (for SSD and 4K sector disks) far easier to put partitions aligned. ___ freebsd-questions@freebsd.org mailing list

Re: Does FreeBSD start slices at head boundaries?

2012-07-07 Thread Polytropon
On Sat, 7 Jul 2012 11:16:33 +0200 (CEST), Wojciech Puchar wrote: Ah the FAQ http://www.freebsd.org/doc/en/books/faq/disks.html#DANGEROUSLY-DEDICATED I don't think it's dangerous either. Thanks for your explanations. While it's far simpler. Anyway i wasn't aware it's called that way as

Re: Does FreeBSD start slices at head boundaries?

2012-07-07 Thread Polytropon
On Sat, 7 Jul 2012 11:15:44 +0200 (CEST), Wojciech Puchar wrote: it without any problem. It _may_ be possible that some systems like Windows have trouble with this approach, what trouble? Windows doesn't probably see anything. I have _no_ idea. Systems behaving in a manner you cannot

Re: Does FreeBSD start slices at head boundaries?

2012-07-07 Thread Wojciech Puchar
While it's far simpler. Anyway i wasn't aware it's called that way as i don't use installer As far as I know, the installer dropped dedicated mode some time ago. So if you intendedly want to use it, you need to bypass the installer and do the few simple steps using the CLI. i already do this,

Re: Does FreeBSD start slices at head boundaries?

2012-07-07 Thread Wojciech Puchar
http://www.unixguide.net/freebsd/faq/09.03.shtml That is EXTREMELY old advice. completely irrevelant now. Why so many people blindly repeat some rules without understanding it. Even years after that rule no longer matters. The other example is creating lots of partitions.

Re: Does FreeBSD start slices at head boundaries?

2012-07-07 Thread Wojciech Puchar
environment. gpart(8) can create MBR slice/partition layouts (and GPT and other partition schemes). See the man page. There is little reason to use fdisk and bsdlabel any more. i use only disklabel, no fdisk at all. i put partition start sector where i want - no align problems. I did

Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Rick Miller
Hi All, Installing FreeBSD 8.x I select A at the fdisk partition editor to use the entire disk. It creates an unused slice with offset 0 and 63 sectors in size. Then partition 1 starts at sector 63 and utilizes the remaining disk space. Does sysinstall's diskPartitonEditor macro automatically

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Wojciech Puchar
automatically start partitions at head boundaries? The reason I ask is because I am most familiar with sector 64 being the start of a head boundary as opposed to 63. Is my understanding incorrect? yes. 63 is normal. Anyway just don't make slices at all if your disk is dedicated to FreeBSD

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Ryan Coleman
On 7/6/2012 11:43 AM, Wojciech Puchar wrote: automatically start partitions at head boundaries? The reason I ask is because I am most familiar with sector 64 being the start of a head boundary as opposed to 63. Is my understanding incorrect? yes. 63 is normal. Anyway just don't make slices

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Robert Huff
Ryan Coleman writes: Anyway just don't make slices at all if your disk is dedicated to FreeBSD Except for swap, right? Why do you say that? Robert huff ___ freebsd-questions@freebsd.org mailing

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Bas Smeelen
On 07/06/2012 07:28 PM, Robert Huff wrote: Ryan Coleman writes: Anyway just don't make slices at all if your disk is dedicated to FreeBSD Except for swap, right? Why do you say that? Robert huff I think Ryan means partition and not

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Rick Miller
On Fri, Jul 6, 2012 at 11:19 AM, Ryan Coleman edi...@d3photography.com wrote: Sector 64 is sector 63 when you start at 0. OMG, so right...I cannot believe that went over my head! Thanks for pointing it out. It lets me know that diskPartitionEditor is automatically selecting start and end

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Wojciech Puchar
Anyway just don't make slices at all if your disk is dedicated to FreeBSD Except for swap, right? wrong. i said slices (==DOS/Windoze MBR partitions), not disklabel ___ freebsd-questions@freebsd.org mailing list

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Wojciech Puchar
I think Ryan means partition and not slice? I would not recommend no slices at all, It's deprecated to use dangerously dedicated disks Starting with 9 I don't see slices in mount ouput anymore but still there are FreeBSD partitions in slices (which is a partitions in dos terms) Example / is

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Polytropon
On Fri, 06 Jul 2012 19:47:27 +0200, Bas Smeelen wrote: On 07/06/2012 07:28 PM, Robert Huff wrote: Ryan Coleman writes: Anyway just don't make slices at all if your disk is dedicated to FreeBSD Except for swap, right? Why do you say that?

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Bas Smeelen
On 07/06/2012 08:25 PM, Polytropon wrote: On Fri, 06 Jul 2012 19:47:27 +0200, Bas Smeelen wrote: On 07/06/2012 07:28 PM, Robert Huff wrote: Ryan Coleman writes: Anyway just don't make slices at all if your disk is dedicated to FreeBSD Except for swap, right? Why do

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Rick Miller
[snip] I think Ryan means partition and not slice? I would not recommend no slices at all, It's deprecated to use dangerously dedicated disks First of all, it's dedicated disks, there's nothing dangerous related. :-) If you are using the MBR approach (old way), you can do either creating

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Eitan Adler
On 6 July 2012 11:44, Rick Miller vmil...@hostileadmin.com wrote: Thanks for this explanation. Is there any performance advantage to using a dedicated disk layout over the old way of creating a slice and having your partitions within it? Slices isn't the old way. There is no perf advantage

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Polytropon
On Fri, 6 Jul 2012 11:58:03 -0700, Eitan Adler wrote: On 6 July 2012 11:44, Rick Miller vmil...@hostileadmin.com wrote: Thanks for this explanation. Is there any performance advantage to using a dedicated disk layout over the old way of creating a slice and having your partitions within

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Michael Sierchio
On Fri, Jul 6, 2012 at 11:58 AM, Eitan Adler li...@eitanadler.com wrote: Slices isn't the old way. There is no perf advantage for dedicated disks. Maybe you get a few kb of extra space. Don't do it. http://www.unixguide.net/freebsd/faq/09.03.shtml That is EXTREMELY old advice. The general

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Bas Smeelen
On 07/06/2012 09:06 PM, Michael Sierchio wrote: On Fri, Jul 6, 2012 at 11:58 AM, Eitan Adler li...@eitanadler.com wrote: Slices isn't the old way. There is no perf advantage for dedicated disks. Maybe you get a few kb of extra space. Don't do it.

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Rick Miller
I went through this exercise to determine if there were boundary issues installing FreeBSD on disks. I concluded that FreeBSD was indeed installing at head boundaries. A colleague then pointed me to http://ivoras.net/blog/tree/2011-01-01.freebsd-on-4k-sector-drives.html which calls into question

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Warren Block
On Fri, 6 Jul 2012, Polytropon wrote: For maximum security, you can use the old approach of using fdisk + disklabel (creating slice, creating partitions within slice). This also delivers most compatibility for other systems, if it should be needed, e. g. in a multiboot environment. gpart(8)