From mboxrd@z Thu Jan 1 00:00:00 1970 From: Venkatesh Ramamurthy Date: Thu, 18 Jan 2001 16:50:35 +0000 Subject: RE: SCSI Patches - mostly on/off-line stuff Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org > In general, as SCSI becomes more networked, most approaches will want the > initiator to figure out what is the > current list of targets the initiator is connected to, rather than the > targets trying to inform interested initiators whether > the targets are coming on-line or going off-line. > > Keeping that in mind, a bus rescan is a better way to go (where a bus is > 'virtual' for networked SCSI architectures). > [ Venkat] The issue is who issues the BUS scanning operations. Is it done in userspace ? What is the time interval between bus scanning for new detection? How is it going to affect SCSI BUS IO speed? We dont want a too frequent scanning which affects IO performance. Too long an interval really undermines Plug & Play. AEN seems better , but i have to check whether FCP supports it. _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net http://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel