tests/00createnames

   1 set -x -e
   2
   3 # Test how <devname> and --name= are handled for create mode.
   4 # We need to check three properties, generated from those parameters:
   5 # - devnode name
   6 # - link in /dev/md/ (MD_DEVNAME property from --detail --export)
   7 # - name in metadata (MD_NAME property from --examine --export)
   8
   9 function _verify() {
  10   local DEVNODE_NAME="$1"
  11   local WANTED_LINK="$2"
  12   local WANTED_NAME="$3"
  13
  14   local RES="$(mdadm -D --export $DEVNODE_NAME | grep MD_DEVNAME)"
  15   if [[ "$?" != "0" ]]; then
  16     echo "Cannot get details for $DEVNODE_NAME - unexpected devnode."
  17     exit 1
  18   fi
  19
  20   if [[ "$WANTED_LINK" != "empty" ]]; then
  21     local EXPECTED="MD_DEVNAME=$WANTED_LINK"
  22       if [[ "$RES" != "$EXPECTED" ]]; then
  23         echo "$RES doesn't match $EXPECTED."
  24         exit 1
  25       fi
  26   fi
  27
  28
  29   local RES="$(mdadm -E --export $dev0 | grep MD_NAME)"
  30   if [[ "$?" != "0" ]]; then
  31     echo "Cannot get metadata from $dev0."
  32     exit 1
  33   fi
  34
  35   local EXPECTED="MD_NAME=$(hostname):$WANTED_NAME"
  36   if [[ "$RES" != "$EXPECTED" ]]; then
  37     echo "$RES doesn't match $EXPECTED."
  38     exit 1
  39   fi
  40 }
  41
  42 function _create() {
  43   local DEVNAME=$1
  44   local NAME=$2
  45
  46   if [[ -z "$NAME" ]]; then
  47     mdadm -CR "$DEVNAME" -l0 -n 1 $dev0 --force
  48   else
  49     mdadm -CR "$DEVNAME" --name="$NAME" -l0 -n 1 $dev0 --force
  50   fi
  51
  52   if [[ "$?" != "0" ]]; then
  53     echo "Cannot create device."
  54     exit 1
  55   fi
  56 }
  57
  58 # The most trivial case.
  59 _create "/dev/md/name"
  60 _verify "/dev/md127" "name" "name"
  61 mdadm -S "/dev/md127"
  62
  63 _create "name"
  64 _verify "/dev/md127" "name" "name"
  65 mdadm -S "/dev/md127"
  66
  67 # Use 'mdX' as name.
  68 _create "/dev/md/md0"
  69 _verify "/dev/md127" "md0" "md0"
  70 mdadm -S "/dev/md127"
  71
  72 _create "md0"
  73 _verify "/dev/md127" "md0" "md0"
  74 mdadm -S "/dev/md127"
  75
  76 # <devnode> is used to create MD_DEVNAME but, name is used to create MD_NAME.
  77 _create "/dev/md/devnode" "name"
  78 _verify "/dev/md127" "devnode" "name"
  79 mdadm -S "/dev/md127"
  80
  81 _create "devnode" "name"
  82 _verify "/dev/md127" "devnode" "name"
  83 mdadm -S "/dev/md127"
  84
  85 # Devnode points to /dev/ directory. MD_DEVNAME doesn't exist.
  86 _create "/dev/md0"
  87 _verify "/dev/md0" "empty" "0"
  88 mdadm -S "/dev/md0"
  89
  90 # Devnode points to /dev/ directory and name is set.
  91 _create "/dev/md0" "name"
  92 _verify "/dev/md0" "empty" "name"
  93 mdadm -S "/dev/md0"