On Tuesday 25 September 2007 06:54:39 Hannes Reinecke wrote: > Nuno Fernandes wrote: > > hello, > > > > Just a question: > > > > With recent support for rdac hardware handler in kernel 2.6.23-rc7, what > > configuration should be in storage DS4700? AVT (Automatic Volume > > transfer) turned on or off? > > Off. AVT is the acronym for 'Automated Volume Transfer', ie the array tries > to transfer the volumes from one controller to the other automatically. > > > When it's turned on, luns keep on jumping from controller to controller.. > > Indeed. That's to be expected. > > As a rule: > > - With rdac hardware handler: AVT off I'm in the process of testing avt in the kernel. > - Without hardware handler: AVT on With this situation i don't have any point of failure but the lun keeps on jumping (because of the alive path check of multipathd) and the performance is awfull. Best regards Nuno Fernandes > > Cheers, > > Hannes
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