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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1018 d57e44dd-8a1f-0410-8b47-8ef2f437770f
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Vladislav Bolkhovitin
2009-08-06 11:49:05 +00:00
parent a65caa9b9b
commit eb9a1f15c3
1 changed files with 0 additions and 22 deletions
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@@ -115,28 +115,6 @@
devices only and reject PERSISTENT RESERVE IN and OUT commands for
pass-through devices with "COMMAND NOT SUPPORTED" sense data.</p>
<A NAME="AUTO_SESS"></A><h3>Automatic sessions reassignment</h3>
<p>At the moment, if security name for an initiator reassigned (moved) to another security
group, the existing sessions from that initiator are not automatically reassigned to
the new security group, i.e. they remain in the old one. The only ways to reassign them
are either sessions restart, or restart of the corresponding target driver. Both in many
cases are not options.</p>
<p>To implement that you should on event of any group change:</p>
<ul>
<li><span>Globally suspend all activities by scst_suspend_activity().</span></li>
<li><span>Go over all existing sessions. For each find the corresponding ACG
(see scst_init_session() as an example) and check if it's the same as the existing
one. If it's the same, then go to the next session. Otherwise, reassign
it to the new ACG. For that you should go over all devices in the group/session
pair (tgt_dev's) and delete not existing in the new ACG tgt_dev's,
add new ones and keep the existing ones.</span></li>
<li><span>Resume the activities.</span></li>
</ul>
<A NAME="DYN_FLOW"></A><h3>Dynamic I/O flow control</h3>
<p>At the moment, if an initiator or several initiators simultaneously send to