Hi, Ryo Tsuruta 2008/11/7 Dong-Jae Kang <baramsori72@xxxxxxxxx>: > Hi Ryo > >>> >> additional one question is left^^ >>> >> dm-ioband can be operated with another dm targets at the same thme? >>> >> with such like multipath, mirror, linear, snapshot and something like that. >>> >> for example, IO control over the mirror targets or IO control over the >>> >> devices with multipath, .... >>> > >>> > I have run dm-ioband on a logical volume disk and it worked well. >>> > http://people.valinux.co.jp/~ryov/dm-ioband/benchmark/lvm.html >>> > >>> >>> I understood >>> You mean dm-ioband can run over another dm targets. >> >> I have just tested with LVM, not with other targets ever. >> > > If I test about it later, I will report you. > but it maybe be done after one or two monthes > I attached the document about device mapper io stacks which is part of the paper presented in 2005 Linux Symposium the title of the paper is "Linux Multipathing" According to the paper, dm-ioband is expected to be run with another dm target drivers if it was implemented properly ^^ -- Best Regards, Dong-Jae Kang
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Device mapper io stacks.pdf
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