On Tue, Oct 28, 2008 at 03:11:08PM +0530, Shyam_Iyer@xxxxxxxx wrote: > Konrad Wrote: > > On Mon, Oct 27, 2008 at 10:11:28AM -0500, Yanqing_Liu@xxxxxxxx wrote: > > > Hi, > > > > > > This patch adds a check for removed device in rdac checker. After > > > volume access inquiry returns, the checker will check the peripheral > > > qualifier field to see if the device is deleted/unmapped. If so, > mark > > > path as failed. > > > How does multipathd behaves when this fix is not in? Does it still > mark the path down? I would presume so, but it would take longer (the > default SCSI timeout value?) > > Absolutely. But that would also be after some IOs on the failed path and > the device being marked offline. Instead if the controller device is > intelligent to support a feature to know if the path is down through an > inquiry then it is worth marking the path down earlier. I concur. > > Thanks for reviewing. You are welcome. +1 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
