HP StorageWorks 500 HP Smart Array Multipath Software User Guide - Page 22

2. Open a console prompt. 3. Mount the CD-ROM. 4. Change to the Linux directory. 5. List the contents of the directory and select the proper RPM for the current operating system. 6. Install the proper RPM using the following command: #rpm_-Uhv --replacefiles cpq_cciss_ .i686.rpm 7. After successful installation, reboot the server. 8. Repeat steps 1 through 7 for each server connected to the MSA500 G2 storage system. Post-installation configuration for Red Hat Enterprise Linux 3.0 and 4.0 After installing Smart Array Multipath software on a server with a Red Hat Enterprise Linux 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 G2 storage system contains two identical MSA500 G2 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/md0 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 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Number 0 106 Major 2 Minor 0 RaidDevice active sync State /dev/cciss/c2d0p2 Installation and operation in Red Hat Enterprise Linux 3.0 and 4.0 environments 22