I am running RHEL 6.4 in an LPAR (not under zVM), and I have a question regarding HyperPAV with ECKD DASD. I found the IBM "HyperPAV and Large Volume support on zLinux" presentation which talks about multipathing tools/modules/configuration settings for RHEL5. I have also seen statements that indicate newer Linux versions just automatically support HyperPAV in the DASD driver. I am hoping that someone can clarify this for me.
[root@lnxslx2 proc]# uname -a Linux lnxslx2.lexisnexis.com 2.6.32-358.el6.s390x #1 SMP Tue Jan 29 12:06:31 EST 2013 s390x s390x s390x GNU/Linux Here is the output for "lsdasd -u": [root@lnxslx2 proc]# lsdasd -u Bus-ID Name UID ============================================================================== 0.0.e83f dasda IBM.750000000BWT71.e800.3f 0.0.e890 alias IBM.750000000BWT71.e800.xx 0.0.e891 alias IBM.750000000BWT71.e800.xx 0.0.e892 alias IBM.750000000BWT71.e800.xx 0.0.e893 alias IBM.750000000BWT71.e800.xx 0.0.e894 alias IBM.750000000BWT71.e800.xx 0.0.e895 alias IBM.750000000BWT71.e800.xx 0.0.e896 alias IBM.750000000BWT71.e800.xx 0.0.e897 alias IBM.750000000BWT71.e800.xx 0.0.e898 alias IBM.750000000BWT71.e800.xx 0.0.e899 alias IBM.750000000BWT71.e800.xx 0.0.e89a alias IBM.750000000BWT71.e800.xx 0.0.e89b alias IBM.750000000BWT71.e800.xx 0.0.e89c alias IBM.750000000BWT71.e800.xx 0.0.e89d alias IBM.750000000BWT71.e800.xx 0.0.e89e alias IBM.750000000BWT71.e800.xx 0.0.e89f alias IBM.750000000BWT71.e800.xx [root@lnxslx2 proc]# Do I need to setup or configure anything else? How can I test the multi-path IO? How can I tell if the aliases are being used? Any other tips or best practices regarding HyperPAV would also be appreciated. Thanks in advance for any assistance. Kevin ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
