Technical data

For all OS:
aaa_base acl attr bash bind-utils bison bzip2 coreutils cpio cpp
cracklib cvs cyrus-sasl db devs diffutils e2fsprogs file filesystem
fillup findutils flex gawk gdbm-devel glibc glibc-devel glibc-locale
gpm grep groff gzip info insserv kbd less libacl libattr libgcc
libselinux libstdc++ libxcrypt m4 make man mktemp module-init-tools
ncurses net-tools netcfg openldap2-client openssl pam pam-modules patch
permissions popt procinfo procps psmisc pwdutils rcs readline sed strace
syslogd sysvinit tar tcpd texinfo timezone unzip util-linux vim zlib
zlib-devel autoconf automake binutils gcc gdbm gettext libtool perl rpm
termcap udev
Installing/Upgrading HPDM Multipath Tools
To install or upgrade HPDM Multipath tools, complete the following steps:
1. Download the HPDM Multipath tools installation package from the following HP website at:
h
ttp://www.hp.com
2. Log in as root to the host system.
3. Copy the installation tar pa ckage to a temporary directory (for example, /tmp/HPDMmultipath).
4. To u n bundle the packag e, enter the following commands:
# cd /tmp/HP
DMmultipath
# tar -xvzf HPDMmultipath-4.0.0.tar.gz
# cd HPDMmultipath-4.0.0
5. Verify that
the directory contains the INSTALL.sh shell script, the SRPMS,README.txt,andthe
docs directories.
6. To install or upgrade HPDM Multipath tools software on the server, enter the following command:
# ./INSTAL
L.sh
7. Follow the on-screen instructions to complete the installation.
8. When the installation is complete, enter the following command:
#rpm -qa |g
rep multipath
9. Verify that the output lists the HPDMmultipath-tools-4.0.0-<OS> packa ge.
Setting up HPDM Multipath
Setting up HPDM Multipath involves the following:
•Conguring QLogic HBA Parameters
•Conguring Emulex HBA parameters
Conguring QLogic HBA Parameters
You must congure the QLogic HBA parameters for HPDM Multipath. The HBA time outs are t ypically
set up for non HPDM Multipath environments, where longer time outs are necessary. This is because
the only alternative is to send an error to the application. However, with Multipath, errors such as
cable fa
ilures must be intimated at the earliest so tha t the Multipath layer can quickly take action and
redirect the I/O to another path.
To congure the QLogic HBA parameter, complete the following steps:
1. For QLogic 2xxx family of HBAs, edit the /etc/modprobe.conf le in RHEL4 or RHEL5 hosts
and /etc/modprobe.conf.local le in SLES9/SLES10 hosts with the following values:
options qla2xxx qlport_down_retry=10 ql2xfailover=0
2. Rebui
ld the initrd by executing the following script:
/opt/
hp/src/hp_qla2x00src/make_initrd
3. Reboot the host.
Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays
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