scripts/zpool-config/zpool-raid0.sh

   1 #!/bin/bash
   2 #
   3 # Zpool Raid-0 Configuration
   4 #
   5 # This script is used to simplify testing with the /dev/disk/zpool/[A-Z][1-n]
   6 # devices.  It assumes that you have already populated /dev/disk/zpool/ by
   7 # creating an /etc/zfs/zdev.conf file based on your system design.  You may
   8 # use the zpool_layout command or manually create your own config file.
   9 #
  10 # You can then use either the zpool-create.sh or the zpios.sh test script to
  11 # test various Raid-0 configurations by adjusting the following tunables.
  12 # For example if you wanted to create and test a single 4-disk Raid-0
  13 # configuration using disks [A-D]1 with dedicated ZIL and L2ARC devices
  14 # you could run the following.
  15 #
  16 # ZIL="log A2" L2ARC="cache B2" RANKS=1 CHANNELS=4 \
  17 # zpool-create.sh -c zpool-raid0
  18 #
  19 # zpool status tank
  20 #   pool: tank
  21 #  state: ONLINE
  22 #  scan: none requested
  23 # config:
  24 #
  25 #       NAME        STATE     READ WRITE CKSUM
  26 #       tank        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 # Create a ZIL vdev as follows.
  48 ZIL=${ZIL:-}
  49
  50 # Create an L2ARC vdev as follows.
  51 L2ARC=${L2ARC:-}
  52
  53
  54 raid0_setup() {
  55         local RANKS=$1
  56         local CHANNELS=$2
  57
  58         RAID0S=()
  59         for (( i=0, k=0; i<${RANKS}; i++ )); do
  60                 RANK=${RANK_LIST[$i]}
  61
  62                 for (( j=0; j<${CHANNELS}; j++, k++ )); do
  63                         RAID0S[${k}]="${CHANNEL_LIST[$j]}${RANK}"
  64                 done
  65         done
  66
  67         return 0
  68 }
  69
  70 zpool_create() {
  71         raid0_setup ${RANKS} ${CHANNELS}
  72
  73         ZPOOL_DEVICES="${RAID0S[*]} ${ZIL} ${L2ARC}"
  74         msg ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${ZPOOL_DEVICES}
  75         ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${ZPOOL_DEVICES} || exit 1
  76 }
  77
  78 zpool_destroy() {
  79         msg ${ZPOOL} destroy ${ZPOOL_NAME}
  80         ${ZPOOL} destroy ${ZPOOL_NAME}
  81 }