scripts/zpool-config/zpool-raidz.sh

   1 #!/bin/bash
   2 #
   3 # Zpool Raid-Z Configuration
   4 #
   5 # This script is used to test with the /dev/disk/by-vdev/[A-Z][1-n] devices.
   6 # It assumes that you have already populated /dev/disk/by-vdev/ by creating
   7 # an /etc/zfs/vdev_id.conf file based on your system design.
   8 #
   9 # You can then use either the zpool-create.sh or the zpios.sh test script to
  10 # test various Raid-Z configurations by adjusting the following tunables.
  11 # For example if you wanted to create and test a single 4-disk Raid-Z2
  12 # configuration using disks [A-D]1 with dedicated ZIL and L2ARC devices
  13 # you could run the following.
  14 #
  15 # ZIL="log A2" L2ARC="cache B2" RANKS=1 CHANNELS=4 LEVEL=2 \
  16 # zpool-create.sh -c zpool-raidz
  17 #
  18 # zpool status tank
  19 #   pool: tank
  20 #  state: ONLINE
  21 #  scan: none requested
  22 # config:
  23 #
  24 #       NAME        STATE     READ WRITE CKSUM
  25 #       tank        ONLINE       0     0     0
  26 #         raidz2-0  ONLINE       0     0     0
  27 #           A1      ONLINE       0     0     0
  28 #           B1      ONLINE       0     0     0
  29 #           C1      ONLINE       0     0     0
  30 #           D1      ONLINE       0     0     0
  31 #       logs
  32 #         A2        ONLINE       0     0     0
  33 #       cache
  34 #         B2        ONLINE       0     0     0
  35 #
  36 # errors: No known data errors
  37 #
  38
  39 # Number of interior vdevs to create using the following rank ids.
  40 RANKS=${RANKS:-1}
  41 RANK_LIST=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 )
  42
  43 # Number of devices per vdev using the following channel ids.
  44 CHANNELS=${CHANNELS:-8}
  45 CHANNEL_LIST=( A B C D E F G H I J K L M N O P Q R S T U V W X Y Z )
  46
  47 # Raid-Z Level: 1, 2, or 3.
  48 LEVEL=${LEVEL:-2}
  49
  50 # Create a ZIL vdev as follows.
  51 ZIL=${ZIL:-}
  52
  53 # Create an L2ARC vdev as follows.
  54 L2ARC=${L2ARC:-}
  55
  56
  57 raidz_setup() {
  58         local RANKS=$1
  59         local CHANNELS=$2
  60
  61         RAIDZS=()
  62         for (( i=0; i<${RANKS}; i++ )); do
  63                 RANK=${RANK_LIST[$i]}
  64                 RAIDZ=("raidz${LEVEL}")
  65
  66                 for (( j=0, k=1; j<${CHANNELS}; j++, k++ )); do
  67                         RAIDZ[$k]="${CHANNEL_LIST[$j]}${RANK}"
  68                 done
  69
  70                 RAIDZS[$i]="${RAIDZ[*]}"
  71         done
  72
  73         return 0
  74 }
  75
  76 zpool_create() {
  77         raidz_setup ${RANKS} ${CHANNELS}
  78
  79         ZPOOL_DEVICES="${RAIDZS[*]} ${ZIL} ${L2ARC}"
  80         msg ${ZPOOL} create ${ZPOOL_FLAGS} ${ZPOOL_NAME} ${ZPOOL_DEVICES}
  81         ${ZPOOL} create ${ZPOOL_FLAGS} ${ZPOOL_NAME} ${ZPOOL_DEVICES} || exit 1
  82 }
  83
  84 zpool_destroy() {
  85         msg ${ZPOOL} destroy ${ZPOOL_NAME}
  86         ${ZPOOL} destroy ${ZPOOL_NAME}
  87 }