From: Luca Berra <bluca@comedia.it>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] status of dm-crypt (alignment issues) on a SSD
Date: Thu, 2 Dec 2010 08:54:13 +0100 [thread overview]
Message-ID: <20101202075413.GE19274@maude.comedia.it> (raw)
In-Reply-To: <20101201145123.GA10238@dentifrice>
On Wed, Dec 01, 2010 at 03:51:24PM +0100, mike dentifrice wrote:
>Any hint would be greatly appreciated (including pointers to up-to-date
>HOWTOs which I may have missed). Also, if you guys know which specific
>feature of linux 2.6.33 is required, it would allow me to check whether
>it's been backported to Debian's 2.6.32 or not.
i dont know about debian and which software version has which feature,
but:
what you need on kernel side is having in sysfs
under /sys/block/<device>
queue/minimum_io_size
queue/optimal_io_size
queue/physical_block_size
on tool side,
for util-linux
ldd /sbin/fdisk | grep blkid
strings /lib/libblkid.so.1 | grep queue/
for lvm
strings /sbin/lvm |grep queue/
and so on.
--
Luca Berra -- bluca@comedia.it
next prev parent reply other threads:[~2010-12-02 8:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-01 14:51 [dm-crypt] status of dm-crypt (alignment issues) on a SSD mike dentifrice
2010-12-02 7:54 ` Luca Berra [this message]
2010-12-02 11:44 ` Milan Broz
2010-12-02 11:50 ` mike dentifrice
2010-12-02 12:08 ` Milan Broz
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