[arch-releng] Wondering about the lvm/dmcrypt in the new AIF

Aaron Griffin aaronmgriffin at gmail.com
Wed Sep 16 17:30:23 EDT 2009

On Wed, Sep 16, 2009 at 12:54 PM, Dieter Plaetinck <dieter at plaetinck.be> wrote:
> On Mon, 14 Sep 2009 23:01:42 -0400
> Peter Constantinidis <peter at constantinidis.ca> wrote:
>> Hi:
>> I have a SSD.. I was wondering if the new installer contains options
>> to allow for partition alignment? Alignment is critical for SSDs..
>> needs to be done 3 times..
>> 1st with fdisk.
> we use cfdisk
>> 2nd for dmcrypt the option: --align-payload (with appropriate value)
>> 3rd for LVM: pvcreate --dataalignment (with appropriate value)
> When creating filesystems, you can optionally specify additional options for the appropriate program (mkfs, pvcreate, cryptsetup, etc)

Curious, do these alignment issues do anything bad on non SSD devices?

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