fad34eef6c
It doesn't affect O_DIRECT reads, and it's not persistent. Message-Id: <1476269082-2473-2-git-send-email-avi@scylladb.com>
78 lines
1.8 KiB
Bash
Executable File
78 lines
1.8 KiB
Bash
Executable File
#!/bin/bash -e
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#
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# Copyright (C) 2015 ScyllaDB
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print_usage() {
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echo "scylla-raid-setup --disks /dev/hda,/dev/hdb... --raiddev /dev/md0 --update-fstab"
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echo " --disks specify disks for RAID"
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echo " --raiddev MD device name for RAID"
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echo " --update-fstab update /etc/fstab for RAID"
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exit 1
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}
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RAID=/dev/md0
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FSTAB=0
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while [ $# -gt 0 ]; do
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case "$1" in
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"--disks")
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DISKS=`echo "$2"|tr -s ',' ' '`
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NR_DISK=$((`echo "$2"|grep , -o|wc -w` + 1))
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shift 2
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;;
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"--raiddev")
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RAID="$2"
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shift 2
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;;
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"--update-fstab")
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FSTAB=1
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shift 1
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;;
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*)
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print_usage
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;;
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esac
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done
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if [ "$DISKS" = "" ]; then
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print_usage
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fi
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for dsk in $DISKS; do
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if [ ! -b $dsk ]; then
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echo "$dsk is not found"
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exit 1
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fi
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done
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echo Creating RAID0 for scylla using $NR_DISK disk\(s\): $DISKS
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if [ -e $RAID ]; then
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echo "$RAID is already using"
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exit 1
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fi
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if [ "`mount|grep /var/lib/scylla`" != "" ]; then
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echo "/var/lib/scylla is already mounted"
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exit 1
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fi
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. /etc/os-release
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if [ "$NAME" = "Ubuntu" ]; then
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env DEBIAN_FRONTEND=noninteractive apt-get -y install mdadm xfsprogs
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else
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yum -y install mdadm xfsprogs
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fi
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mdadm --create --verbose --force --run $RAID --level=0 -c1024 --raid-devices=$NR_DISK $DISKS
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mkfs.xfs $RAID -f
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echo "DEVICE $DISKS" > /etc/mdadm.conf
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mdadm --detail --scan >> /etc/mdadm.conf
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if [ $FSTAB -ne 0 ]; then
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UUID=`blkid $RAID | awk '{print $2}'`
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echo "$UUID /var/lib/scylla xfs noatime 0 0" >> /etc/fstab
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fi
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mount -t xfs -o noatime $RAID /var/lib/scylla
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mkdir -p /var/lib/scylla/data
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mkdir -p /var/lib/scylla/commitlog
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mkdir -p /var/lib/scylla/coredump
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chown scylla:scylla /var/lib/scylla/*
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chown scylla:scylla /var/lib/scylla/
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