EMC 300-000-978 REV A03 manual Moving the Boot Device to an emcpower Device

3

Configuring a PowerPath Boot Device on Solaris

Moving the Boot Device to an emcpower Device

To move a boot device from a native device to an emcpower device:

1.Boot from the native device.

2.Install PowerPath. Refer to Chapter 1, Installing PowerPath.

3.Locate the native device from which you are booting, and correlate this device to an emcpower device. Enter:

/etc/powermt display dev=all

The output is similar to the following:

Pseudo name=emcpower6a Symmetrix ID=000000005543 Logical device ID=0001

state=alive; policy=SymmOpt; priority=0; queued-IOs=0

==============================================================================

---------------- Host	--------------- - Stor - -- I/O Path - -- Stats ---
### HW Path	I/O Paths	Interf.	Mode State Q-IOs Errors

==============================================================================

1281	pci@4/QLGC,qla@1	c6t0d252s0	FA	3aA	active	alive	0	0
1283	pci@6/QLGC,qla@1	c8t0d252s0	FA	3aA	active	alive	0	0

Scroll through the output until you locate the native device used as the boot device; for example, c1t6d0s0. In this example, this native device corresponds to emcpower6a.

4.Identify the device node that corresponds to the emcpower device. Enter:

ls –l /dev/dsk/emcpower6a

The output is similar to the following:

lrwxrwxrwx 1 root other 33 May 30 17:42 /dev/dsk/emcpower6a ->

../../devices/pseudo/emcp@6:a,blk

Looking at the output, you can see that /pseudo/emcp@6:a,blk corresponds to emcpower6a. You will use this value in step 6.

5.Make backup copies of the /etc/system and /etc/vfstab files so that, if necessary, you can restore the host to its pre-PowerPath settings. Enter:

cp /etc/system /etc/system.no_EMCpower cp /etc/vfstab /etc/vfstab.no_EMCpower

3-8 PowerPath for UNIX Installation and Administration Guide