I've recently installed RHEL 5.6 on zVM 6.1 The /boot partition is on 3930 minidisk, and everything else is on FCP/SCSI using mpath, with 8 paths defined to each LUN.
The interesting thing from a VM point of view is that servers using this SAN get IO errors on the FCP devices, causing the zLinux system to hang... can't connect with ssh, any connected sessions stop responding... and worse.. when I log on to the guest VM ID, after entering the password, the system just hangs there... no "Reconnected at ... " message... and I can't enter any #CP commands (set run on is in effect) Now, on MAINT, I issue "QUERY SIGNALS".. and the maint ID gets hung, displaying a partial response. Then, from another ID, I FORCE the zLinux guest... sure enough, zLinux catches the signal and runs shutdown -h now and zLinux cycles itself down and logs off (because I have chshut halt cmd LOGOFF in effect) So, the IO errors I'm taking to the SAN vendor... but what could cause zLinux to lock up so hard, and yet still respond to "ctl-alt-delete" AKA SIGNAL SHUTDOWN? And why does MAINT hang up trying to display QUERY SIGNALS... which does complete when I force the zLinux guest off. Thank you ---------------------------------------------------------------------- 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/
