From 7d32ae4d1f51ec5ecf5789e4cbe16db33a098e2e Mon Sep 17 00:00:00 2001
From: dlg <dlg@openbsd.org>
Date: Sat, 19 Apr 2014 05:00:06 +0000
Subject: [PATCH] implement emc_mpath_checksense() according to what my cx500
 throws.

tested by jmatthew@
---
 sys/scsi/mpath_emc.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/sys/scsi/mpath_emc.c b/sys/scsi/mpath_emc.c
index 619db404fdb..d7ace5d8f12 100644
--- a/sys/scsi/mpath_emc.c
+++ b/sys/scsi/mpath_emc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mpath_emc.c,v 1.17 2014/04/17 06:38:54 dlg Exp $ */
+/*	$OpenBSD: mpath_emc.c,v 1.18 2014/04/19 05:00:06 dlg Exp $ */
 
 /*
  * Copyright (c) 2011 David Gwynne <dlg@openbsd.org>
@@ -204,6 +204,15 @@ emc_mpath_start(struct scsi_xfer *xs)
 int
 emc_mpath_checksense(struct scsi_xfer *xs)
 {
+	struct scsi_sense_data *sense = &xs->sense;
+
+	if ((sense->error_code & SSD_ERRCODE) == SSD_ERRCODE_CURRENT &&
+	    (sense->flags & SSD_KEY) == SKEY_NOT_READY &&
+	    ASC_ASCQ(sense) == 0x0403) {
+		/* Logical Unit Not Ready, Manual Intervention Required */
+		return (MPATH_SENSE_FAILOVER);
+	}
+
 	return (MPATH_SENSE_DECLINED);
 }
 
-- 
2.20.1