scripts/zpool-config/zpool-raid0.sh

   1 #!/bin/bash
   2 #
   3 # Zpool Raid-0 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-0 configurations by adjusting the following tunables.
  11 # For example if you wanted to create and test a single 4-disk Raid-0
  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 \
  16 # zpool-create.sh -c zpool-raid0
  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 #         A1        ONLINE       0     0     0
  27 #         B1        ONLINE       0     0     0
  28 #         C1        ONLINE       0     0     0
  29 #         D1        ONLINE       0     0     0
  30 #       logs
  31 #         A2        ONLINE       0     0     0
  32 #       cache
  33 #         B2        ONLINE       0     0     0
  34 #
  35 # errors: No known data errors
  36 #
  37
  38 # Number of interior vdevs to create using the following rank ids.
  39 RANKS=${RANKS:-1}
  40 RANK_LIST=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 )
  41
  42 # Number of devices per vdev using the following channel ids.
  43 CHANNELS=${CHANNELS:-8}
  44 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 )
  45
  46 # Create a ZIL vdev as follows.
  47 ZIL=${ZIL:-}
  48
  49 # Create an L2ARC vdev as follows.
  50 L2ARC=${L2ARC:-}
  51
  52
  53 raid0_setup() {
  54         local RANKS=$1
  55         local CHANNELS=$2
  56
  57         RAID0S=()
  58         for (( i=0, k=0; i<${RANKS}; i++ )); do
  59                 RANK=${RANK_LIST[$i]}
  60
  61                 for (( j=0; j<${CHANNELS}; j++, k++ )); do
  62                         RAID0S[${k}]="${CHANNEL_LIST[$j]}${RANK}"
  63                 done
  64         done
  65
  66         return 0
  67 }
  68
  69 zpool_create() {
  70         raid0_setup ${RANKS} ${CHANNELS}
  71
  72         ZPOOL_DEVICES="${RAID0S[*]} ${ZIL} ${L2ARC}"
  73         msg ${ZPOOL} create ${ZPOOL_FLAGS} ${ZPOOL_NAME} ${ZPOOL_DEVICES}
  74         ${ZPOOL} create ${ZPOOL_FLAGS} ${ZPOOL_NAME} ${ZPOOL_DEVICES} || exit 1
  75 }
  76
  77 zpool_destroy() {
  78         msg ${ZPOOL} destroy ${ZPOOL_NAME}
  79         ${ZPOOL} destroy ${ZPOOL_NAME}
  80 }