On Tuesday 02 Feb 2010 21:26:19 Ferenc Wagner wrote: > > But that will not help trigger a real restart where say, you discovered > > more targets and removed the old ones, if you don't do a stoptargets, > > you won't be able to logout of those targets. > > I think it's the other way around: if you DO stoptargets, then you won't > be able to log out of the targets. But that probably doesn't matter much. > > In my opinion, the open-iscsi init scripts and general behaviour should > be more modelled after that of multipath-tools(-boot), even "around" > that, as iscsi devices can be multipathed (multipath maintainer Cc-d). > /usr/share/initramfs-tools/scripts/local-top/multipath already requires > iscsi, so the scene is set. :) Basically start iscsi before multipath, > and stop it after multipath. Btw. "starting" multipath in the initramfs > doesn't entail starting multipathd, which is similar in purpose to > iscsid. Similarly, stopping multipath means stopping multipathd, not > flushing the in-kernel mappings of the devices. iSCSI should behave > much the same, although it's complicated by the login/logout issue, > which could be optionally supported by the open-iscsi init script via > separate verbs for the convenience of the sysadmin. Or it could be left > out and relegated to iscsiadm for the sake of simplicity. > > In short: I'd still say that /etc/init.d/open-iscsi stop should not > execute stoptargets. It could still support the stoptargets verb, but > it would be nice to stop unused targets only. However, I don't know how > one could do that. >
I totally agree. stoptargets (logout of iscsi sessions) is not really required. And if we *really* need to have that, we first need to ensure that all iscsi devices are unmounted. SLES does something similar (but still buggy). I will check is open-iscsi has the equivalent of `multipath -F` On similar topic, I want to bring the following bug to your attention. This involves both iscsi and multipath. https://bugzilla.redhat.com/show_bug.cgi?id=456228 Regards, Ritesh -- Ritesh Raj Sarraf RESEARCHUT - http://www.researchut.com "Necessity is the mother of invention."
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