[rhelv6-beta-list] Can RHEL6 installer align the disk partition with 4k-sector or raid stripe size?

[Pasi Kärkkäinen]

On Thu, Jun 10, 2010 at 10:29:21AM +0800, Kirby Zhou wrote:
> Are you sure?
> I think RHEL6 installer does not align partitions.
> 
> ~]# parted /dev/sda unit kib print
> Model: IBM ServeRAID M5014 (scsi)
> Disk /dev/sda: 291991552kiB
> Sector size (logical/physical): 512B/512B
> Partition Table: msdos
> 
> Number  Start      End           Size          Type     File system  Flags
>  1      31.5kiB    200812kiB     200781kiB     primary  ext4         boot
>  2      200813kiB  291989407kiB  291788595kiB  primary               lvm
> 

Ok.. I guess RHEL6 then doesn't do it. Any reason why? 

I know for sure F13 does it. The 2 MB alignment might have been wrong,
I can't check right now, but I think it might have been 2048 sectors,
so that'd make 1 MB (on a drive with 512 bytes/sector).

"fdisk -u" can be used aswell to check the alignment.

-- Pasi

> Regards,
>    Kirby Zhou    
>    from   SOHU-RD   +86-10-6272-8261
> 
> -----Original Message-----
> From: rhelv6-beta-list-bounces at redhat.com
> [mailto:rhelv6-beta-list-bounces at redhat.com] On Behalf Of Pasi K?rkk?inen
> Sent: Thursday, June 10, 2010 3:48 AM
> To: Red Hat Enterprise Linux 6 (Santiago) Beta releases discussion
> mailing-list
> Subject: Re: [rhelv6-beta-list] Can RHEL6 installer align the disk partition
> with 4k-sector or raid stripe size?
> 
> On Mon, Jun 07, 2010 at 07:37:28PM -0400, Nico Kadel-Garcia wrote:
> 
> at least Fedora 13 installer aligns partitions to 2 MB starting offset
> (iirc),
> even when the drive has 512 bytes per sector. I assume RHEL6 installer does
> the same.
> 
> No mis-alignment there, like RHEL5 installer has (the famous offset 63
> issue).
> 
> -- Pasi
> 
> 
> _______________________________________________
> rhelv6-beta-list mailing list
> rhelv6-beta-list at redhat.com
> https://www.redhat.com/mailman/listinfo/rhelv6-beta-list