Selon Arjan van de Ven <arjan@xxxxxxxxxxxxx>: > On Mon, 2004-10-25 at 00:14 +0200, christophe varoqui wrote: > > > * multipath & multipathd now use the same path checkers. > > Consequence being multipath now need sg loaded > > why sg and not using SG_IO on the actual devices ? > mp-tools are 2.6 only anyway, right ? > Glad you notice :) In fact all the sg stuff I use is done with the SG_IO ioctl (see libcheckers/*.c) But somehow, it doesn't work as expected. I don't remember how exactly it failed in my tests but it did ... I remembered receiving bad path status and experiencing blocked checkers. I would really like someone experienced put his nose in this stuff. If you want, I can code up a flag to switch the mp-tools ioctl submission between blockdev and sgdev. Note you don't need to have real multipathed hardware to run and test the thing : parallel SCSI hw suffice and is seen as monopath. regards, cvaroqui --
