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 no

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
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 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 canno

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

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 http://lists.freebsd.

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
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 ___ fr

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 O

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)

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 Bas Smeelen
On 07/06/2012 09:06 PM, Michael Sierchio wrote: On Fri, Jul 6, 2012 at 11:58 AM, Eitan Adler 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 EXTREME

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 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 advice, for th

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 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? > > Sl

Re: Does FreeBSD start slices at head boundaries?

2012-07-06 Thread Eitan Adler
On 6 July 2012 11:44, Rick Miller 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 for dedicated dis

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

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 y

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 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 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 http://lists.freebsd.org/mailman/l

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 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 sectors at boundaries. Thank

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 sl

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 ma

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 at

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

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