On Mon, Jun 15, 2009 at 10:48:49PM +0530, shyam_i...@dell.com wrote: > > > -----Original Message----- > > From: open-iscsi@googlegroups.com [mailto:open-is...@googlegroups.com] > > On Behalf Of Konrad Rzeszutek > > Sent: Monday, June 15, 2009 8:39 PM > > To: open-iscsi@googlegroups.com > > Subject: Re: open-iscsi and discover newly created LUN > > > > > > > > > > > > On RHEL 5.3 and newer, upstream and probably ubuntu (not sure what > > > > version is in there), you can do > > > > > > > > iscsiadm -m session -r $SID --rescan > > > > > > > > > > Mike - > > > > > > The target can initiates a UNIT ATTENTION with additional sense as > > > "Report LUN data changed", I don't see that currently being handled > > by > > > the SCSI-ML. > > > > You get that in dmesg? Or is that something the aray can do, but you > > have to configure it? > > It is usually programmed into the array firmware. > > > > > > > A rescan may not be necessary if this information is received by the > > > open-iscsi. > > > > Huh? Why not? I mean if the LUN changed (it changed size for example), > > don't you want to rescan the LUN to pick up the changes? > > Not anymore.. Rescanning is a parallel scsi thingie ..see > http://www.t10.org/ftp/t10/document.06/06-411r0.pdf
I think the majority of storages that are in usage right now (at least for the SMB market) don't employ this standard. Hence to support those storage, you would still need to do the old way (ie, find out what changed, do an SCSI INQ see if the Peripheral Qualifier changed, or if device type has changed from 1fh to 00h, etc). --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/open-iscsi -~----------~----~----~----~------~----~------~--~---
