HP Modular Smart Array 500 Starter Kit Manuale Utente Scaricare il pdf (Pagina 29)

Installation and Operation

HP Smart Array Multipath Software User Guide 2-5

HP CONFIDENTIAL

Writer: Rob Weaver File Name: c-ch2 Installation and Operation.doc

Codename: BorealisII Part Number: 307958-003 Last Saved On: 9/19/03 9:20 AM

UnitedLinux Configuration

After installing Smart Array Multipath software on a server with a UnitedLinux

operating system, configure for multipath operations.

Review the following sample configuration procedure. This sample assumes that the

user wants to set /dev/cciss/c1d0p2 and /dev/cciss/c2d0p2 to point to the same

volume as a multipath device.

To configure the system for multipath use:

1. Be sure that the MSA500 system contains two controllers connected to the same

logical volume.

2. To create multipath device /dev/md0, run:

mdadm –create –level multipath –n 2 /dev/md0

/dev/cciss/c1d0p2 /dev/cciss/c2d0p2

3. To review the status, run:

mdadm –D /dev/md0

Results should look similar to the following:

/dev/mdp:

Version : 00.90.00

Creation Time : Mon Apr 29 09:15:00 2003

Raid Level : multipath

Array Size : 14683328 (14.00 GiB 15.08 GB)

Raid Devices : 2

Total Devices : 2

Preferred Minor : 0

Persistence : Superblock is persistent

Update Time : Mon Apr 29 09:02:00 2003

State : dirty, no-errors

Active Devices : 2

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HP Modular Smart Array 500 Starter Kit Manuale Utente Pagina 29