HP Clustered Gateway Device Management Software manual An Example of Changing the I/O Path

Chapter 1: Matrix Server Commands 23

An Example of Changing the I/O Path

In this example, we will change the target for a device. The mxmpio status -lcommand identifies the path currently being used by each device. That path is labeled “active.” The following output shows that device psd2p1 is active on target 1.

#/opt/polyserve/sbin/mxmpio status -l MPIO Failover is globally enabled

psd1	Failover	Timeout	Targets
	enabled	30000	0.	(41:50) scsi2/0/2/19 (active)
psd1p1	enabled	10000	1.	(08:90) scsi1/0/2/19
			0.	(41:51) scsi2/0/2/19
psd1p2	enabled	30000	1.	(08:91) scsi1/0/2/19 (active)
			0.	(41:52) scsi2/0/2/19 (active)
psd2	enabled	30000	1.	(08:92) scsi1/0/2/19
			0.	(41:10) scsi2/0/1/20 (active)
psd2p1	enabled	10000	1.	(08:50) scsi1/0/1/20
			0.	(41:11) scsi2/0/1/20
psd2p2	enabled	30000	1.	(08:51) scsi1/0/1/20 (active)
			0.	(41:12) scsi2/0/1/20 (active)
			1. (08:52) scsi1/0/1/20

Now use the mxmpio command to change the path for psd2p1 to target 0:

#/opt/polyserve/sbin/mxmpio active 0 psd2p1

To verify the change, run the mxmpio status -lcommand again. In the following output, device psd2p1 is now active on target 0.

#/opt/polyserve/sbin/mxmpio status -l MPIO Failover is globally enabled

psd1	Failover	Timeout	Targets
	enabled	30000	0.	(41:50) scsi2/0/2/19 (active)
psd1p1	enabled	10000	1.	(08:90) scsi1/0/2/19
			0.	(41:51) scsi2/0/2/19
psd1p2	enabled	30000	1.	(08:91) scsi1/0/2/19 (active)
			0.	(41:52) scsi2/0/2/19 (active)
psd2	enabled	30000	1.	(08:92) scsi1/0/2/19
			0.	(41:10) scsi2/0/1/20 (active)
psd2p1	enabled	10000	1.	(08:50) scsi1/0/1/20
			0.	(41:11) scsi2/0/1/20 (active)
psd2p2	enabled	30000	1.	(08:51) scsi1/0/1/20
			0.	(41:12) scsi2/0/1/20 (active)
			1. (08:52) scsi1/0/1/20

Copyright © 1999-2006 PolyServe, Inc. All rights reserved.