Nick,

> Does anyone have a pointer for something like "The Idiots' Guide to
> Dynamically Adding Disk Space for Linux on S/390"?
We addressed it in the Domino Redbook - SG24-7021.

Did you add the device by echoing to /proc/dasd/devices?  I can never
remember the syntax so I drag around the dasd script described in
the Large Scale Deployment redbook:

# cat `which dasd`
#!/bin/sh
# dasd - simple utility for dynamic DASD management
if [ "$1" = "add" -a "$2" != "" ]; then
  echo "add range=$2" > /proc/dasd/devices
elif [ "$1" = "on" -a "$2" != "" ]; then
  echo "set device range=$2 on" > /proc/dasd/devices
elif [ "$1" = "off" -a "$2" != "" ]; then
  echo "set device range=$2 off" > /proc/dasd/devices
elif [ "$1" = "list" ]; then
  cat /proc/dasd/devices
else
  echo "Usage: dasd add|on|off vdev_or_range" 1>&2
  echo " dasd list" 1>&2
  exit 2
fi

Then you can use the script to add the DASD.  For example "dasd add
300-302".
The do "dasd list" to see it.  Then dasdfmt should work.

For across IPLs you'll want to add the minidisk addresses to zipl.conf and

run zipl.

-Mike MacIsaac, IBM  mikemac at us.ibm.com   (845) 433-7061


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