Re: status of dm-crypt (alignment issues) on a SSD

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On 12/02/2010 12:50 PM, mike dentifrice wrote:
> So far, everything seems good as far as I understnad, but should
> `cryptsetup` have 'queue' strings as well ? Mine (v1.1.3) doesn't. I
> compiled 1.2.0-rc1 and it doesn't either. Is that a stopper of not?

Grepping for queue is not clever idea, sorry.

1.1.3 has topology support, 1.2.0 adds 1MiB default here.

Run luksFormat --debug and you will see topology info read from kernel:

# Topology: IO (512/0), offset = 0; Required alignment is 4096 bytes.

512/0, offset = 0 means min io size / opt io size and offset from sysfs.

For ssd it should be surenly not 512 but something like write block.

Milan
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