Red Hat SATELLITE 5.1.0 RELEASE NOTES Manual de instalación descargar pdf (Pagina 249)

Appendix C. Linux source code 231

if [ $ret_val -eq 0 ] ; then

nblks=`cat /proc/dasd/devices | grep $target_dev_node | awk '{ print $13 }'`

[ -n "$VERBOSE" ] && \

echo "Invoking Linux command: dd bs=4096 count=$nblks if=/dev/$source_dev_node

of=/dev/$target_dev_node"

dd bs=4096 count=$nblks if=/dev/$source_dev_node of=/dev/$target_dev_node >/dev/null

[ $? -ne 0 ] && echo "Error: dd failed" && ret_val=1

# Put the source and target devices offline

set_offline $target_mdisk

set_offline $source_mdisk

return $ret_val

}

#+--------------------------------------------------------------------------+

function link_one

# This will link one minidisk from another user id as the target minidisk

# address on the current z/VM user id with a link mode indicated by the

# 4th argument.

# Arg1: Source z/VM ID

# Arg2: Source minidisk virtual address

# Arg3: Target minidisk virtual address

# Arg4: Link mode (rr/w)

#+--------------------------------------------------------------------------+

{

source_id=$1

source_mdisk=$2

target_mdisk=$3

link_mode=$4

cp_cmd QUERY VIRTUAL $target_mdisk

if [ $? != 40 ]; then

cp_cmd DETACH $target_mdisk

cp_cmd LINK $source_id $source_mdisk $target_mdisk $link_mode $LINK_PASSWD

if [ $? != 0 ]; then

echo "cp_cmd link $source_id $source_mdisk $target_mdisk $link_mode failed -

exiting"

abort 1

}

#+--------------------------------------------------------------------------+

function unlink_one

# This will unlink a minidisk from the current z/VM user id.

# Arg1: The target minidisk to unlink

#+--------------------------------------------------------------------------+

{

cp_cmd DETACH $1

return $?

}

#+--------------------------------------------------------------------------+

function copy_one

# Try to use z/VM FLASHCOPY to copy one disk to another. If that fails,

# call dd_copy() to fall back to the Linux DD command

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Red Hat SATELLITE 5.1.0 RELEASE NOTES Manual de instalación Pagina 249

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