89 lines
2.5 KiB
Bash
89 lines
2.5 KiB
Bash
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#!/bin/bash
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#
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# Zpool Raid-Z Configuration
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#
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# This script is used to simplify testing with the /dev/disk/zpool/[A-Z][1-n]
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# devices. It assumes that you have already populated /dev/disk/zpool/ by
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# creating an /etc/zfs/zdev.conf file based on your system design. You may
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# use the zpool_layout command or manually create your own config file.
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#
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# You can then use either the zpool-create.sh or the zpios.sh test script to
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# test various Raid-Z configurations by adjusting the following tunables.
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# For example if you wanted to create and test a single 4-disk Raid-Z2
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# configuration using disks [A-D]1 with dedicated ZIL and L2ARC devices
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# you could run the following.
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#
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# ZIL="log A2" L2ARC="cache B2" RANKS=1 CHANNELS=4 LEVEL=2 \
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# zpool-create.sh -c zpool-raidz
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#
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# zpool status tank
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# pool: tank
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# state: ONLINE
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# scan: none requested
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# config:
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#
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# NAME STATE READ WRITE CKSUM
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# tank ONLINE 0 0 0
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# raidz2-0 ONLINE 0 0 0
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# A1 ONLINE 0 0 0
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# B1 ONLINE 0 0 0
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# C1 ONLINE 0 0 0
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# D1 ONLINE 0 0 0
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# logs
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# A2 ONLINE 0 0 0
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# cache
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# B2 ONLINE 0 0 0
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#
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# errors: No known data errors
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#
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# Number of interior vdevs to create using the following rank ids.
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RANKS=${RANKS:-1}
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RANK_LIST=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 )
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# Number of devices per vdev using the following channel ids.
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CHANNELS=${CHANNELS:-8}
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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 )
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# Raid-Z Level: 1, 2, or 3.
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LEVEL=${LEVEL:-2}
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# Create a ZIL vdev as follows.
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ZIL=${ZIL:-}
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# Create an L2ARC vdev as follows.
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L2ARC=${L2ARC:-}
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raidz_setup() {
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local RANKS=$1
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local CHANNELS=$2
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RAIDZS=()
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for (( i=0; i<${RANKS}; i++ )); do
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RANK=${RANK_LIST[$i]}
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RAIDZ=("raidz${LEVEL}")
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for (( j=0, k=1; j<${CHANNELS}; j++, k++ )); do
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RAIDZ[$k]="${CHANNEL_LIST[$j]}${RANK}"
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done
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RAIDZS[$i]="${RAIDZ[*]}"
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done
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return 0
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}
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zpool_create() {
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raidz_setup ${RANKS} ${CHANNELS}
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ZPOOL_DEVICES="${RAIDZS[*]} ${ZIL} ${L2ARC}"
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msg ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${ZPOOL_DEVICES}
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${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${ZPOOL_DEVICES} || exit 1
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}
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zpool_destroy() {
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msg ${ZPOOL} destroy ${ZPOOL_NAME}
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${ZPOOL} destroy ${ZPOOL_NAME}
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}
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