I doubt it. Readahead is a very hadrdware dependent thing. I expect it is not even available as a concept on the dm-layer. It is also not a thing a block device does. It is more of a hack for HDDs. Arno On Mon, Jun 01, 2009 at 07:45:53PM +0200, Sven Eschenberg wrote: > Dear List, > > is there any convenient way to set a dm-crypts volume readahead value? > Cryptsetup and the luks metadata seem to lack this option. If one puts a > dm-crypt volume on a raid, aside from aligning it, the crypted volumes > readahead should match the stripe size. > Why does dmcrypt itself not evaluate the current readahead of the > underlying blockdevice and after creating the mapping applies it to the > newly created blockdevice? > > Regards > > -Sven > > > > --------------------------------------------------------------------- > dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ > To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx > For additional commands, e-mail: dm-crypt-help@xxxxxxxx > -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@xxxxxxxxxxx GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier --------------------------------------------------------------------- dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx For additional commands, e-mail: dm-crypt-help@xxxxxxxx
