Hall, Ken (GTI) wrote: > We used to see behavior like this on our SLES8 systems, when too many images > were brought up at once. It seemed to be related to contention for the disks > because we'd reboot the images independently and they'd come up fine, and > never seemed to hang on individual reboots. > > Try staggering the autologs (insert delays, etc.) at IPL time. > > Did anyone ever figure out what caused this? My personal favorite candidate is our device discovery. We issue a sense-id command on each subchannel, and we wait for a response from the device for a given amount of time. After the timeout, we continue startup with the assumption that there is no such device. If we get a response after the timeout has expired, we set the device online, but that may be too late for devices that need to be present for startup (rootfs and such). --
Carsten Otte IBM Linux technology center ARCH=s390 ---------------------------------------------------------------------- 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
