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This article shows you how to configure EMC storage multipath software, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

EMC PowerPath is a management software for path selection, redundancy and load balancing, compared with HP,IBM and other vendors.

The advantage of EMC is that it can achieve load balancing, while other manufacturers only support basic failover.

1) install the RPM package

First upload the powerpath installation package to the server: (d:\ EMC storage configuration\ powerpath)

[root@shcrm tmp] # ls * .rpm

EMCpower.LINUX-5.3.1.00.00-111.rhel.i386.rpm

Start the installation:

[root@shcrm tmp] # rpm-Uvh EMCpower.LINUX-5.3.1.00.00-111.rhel.x86_64.rpm

Prepare. # [100%]

1:EMCpower.LINUX # # [100%]

2) Registration

Register for PowerPathLicense:

[root@shcrm ~] # emcpreg-install

Enter PowerPathLicense at the prompt

PowerPath license key: BZPV-ZB4K-BFTK-QOME-ML9O-UYFB

If you enter a valid registration key, you will see the following output:

1 Key (s) successfully added.

Key successfully installed:

If you enter an invalid registration key, an error message appears on the screen

You are prompted for a valid key.

3) start PowerPath

Load the PowerPath module:

[root@shcrm ~] # / etc/init.d/PowerPath start

Check to see if a new pseudo device appears:

[root@shcrm ~] # fdisk-l | grep emcpower

[root@X01A19 tmp] # fdisk-l

Disk / dev/sda: 899.9 GB, 899899242496 bytes

255 heads, 63 sectors/track, 109406 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I take O size (minimum/optimal): 262144 bytes / 786432 bytes

Disk identifier: 0x00088dd0

Device Boot Start End Blocks Id System

/ dev/sda1 * 1 26 205056 83 Linux

Partition 1 does not end on cylinder boundary.

/ dev/sda2 26 13080 104857344 83 Linux

/ dev/sda3 13080 17258 33554688 82 Linux swap / Solaris

/ dev/sda4 17258 109407 740189998 5 Extended

/ dev/sda5 17258 109407 740189184 8e Linux LVM

Disk / dev/sdb: 322.1 GB, 322122547200 bytes

255 heads, 63 sectors/track, 39162 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

Disk / dev/sdc: 322.1 GB, 322122547200 bytes

255 heads, 63 sectors/track, 39162 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

Disk / dev/sdd: 322.1 GB, 322122547200 bytes

255 heads, 63 sectors/track, 39162 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

Disk / dev/sde: 322.1 GB, 322122547200 bytes

255 heads, 63 sectors/track, 39162 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

Disk / dev/sdf: 322.1 GB, 322122547200 bytes

255 heads, 63 sectors/track, 39162 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

Disk / dev/sdg: 322.1 GB, 322122547200 bytes

255 heads, 63 sectors/track, 39162 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

Check load balancing and failover policies:

[root@shcrm ~] # powermt display dev=all

Pseudo name=emcpowera

VNX ID=CETV2134900044 [USC B2B]

Logical device ID=6006016051E03600841F3C47B2FCE611 [lun1_USC_B2B]

State=alive; policy=CLAROpt; queued-IOs=0

Owner: default=SP A, current=SP An Array failover mode: 4

=

-Host-- Stor-I take O Path-Stats--

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

=

1 qla2xxx sdg SP B1 active alive 0 0

1 qla2xxx sdf SP A3 active alive 0 0

1 qla2xxx sde SP B2 active alive 0 0

0 qla2xxx sdb SP B3 active alive 0 1

0 qla2xxx sdc SP A1 active alive 0 1

0 qla2xxx sdd SP A2 active alive 0 1

(the number of rows shown here is the number of paths)

The above content is how to configure EMC storage multipath software. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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