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|
#!/bin/sh
#config: CLUSTER CLUSTERFS_DEFAULT_MOUNTPOINT GPFS_DEFAULT_NSDS
#config: NODES_STORAGE_GPFS SHARED_DISK_IDS
# Automatically setup GPFS. This is a quick way to get setup with an
# autocluster system. It finds NSDs, does various pieces of GPFS
# configuration, creates a filesystem and mounts it.
set -e
gpfs_num_nsds="$GPFS_DEFAULT_NSDS"
cluster_name="$CLUSTER"
mountpoint="$CLUSTERFS_DEFAULT_MOUNTPOINT"
nodes_storage_gpfs="$NODES_STORAGE_GPFS"
shared_disk_ids="$SHARED_DISK_IDS"
dir=$(dirname "$0")
##################################################
# If there are "storage_gpfs" nodes in the cluster (meaning that "nas"
# nodes will not have direct-attached storage) then scripts that
# include this snippet must be run on one of the storage nodes.
# Therefore, in the case, this snippet tries to determine if it is
# running on the 1st GPFS storage node and, if not, attempts to run
# the script there.
if [ -n "$nodes_storage_gpfs" -a \
"${HOSTNAME%%.*}" != "${nodes_storage_gpfs%%[.,]*}" ] ; then
if [ "${0#/}" != "$0" ] ; then
script="$0"
else
script="${PWD}/${0}"
fi
re_exec_node="${nodes_storage_gpfs%%[.,]*}"
echo
echo "Creating NSDs on node \"${re_exec_node}\""
exec ssh "$re_exec_node" "$script" "$@"
fi
##################################################
# Uses: cluster_name
gpfs_setup ()
{
_domain=$(dnsdomainname)
_nodes=$(onnode -q all hostname | grep -i "$_domain" | tr 'A-Z\012' 'a-z\040')
_first="${_nodes%% *}"
# Determine primary and secondary nodes. Give preference to GPFS
# storage nodes, falling back to regular nodes if there aren't any
# or aren't enough.
if [ -n "$nodes_storage_gpfs" ] ; then
_primary="${nodes_storage_gpfs%%,*}"
_rest="${nodes_storage_gpfs#*,}"
_secondary="${_rest%%,*}"
fi
if [ -z "$_primary" ] ; then
_primary="$_first"
_rest="${_nodes#* }"
_secondary="${_rest%% *}"
elif [ -z "$_secondary" ] ; then
_secondary="$_first"
fi
# Create the node description file for mmcrcluster. If there are
# dedicated storage nodes then they are quorum nodes, along with
# the first node. If there are no dedicated storage nodes then
# all nodes are quorum nodes.
_nodefile="${dir}/gpfs_nodes.${cluster_name}"
{
for _n in $_nodes ; do
if [ "$_n" = "$_first" ] ; then
echo "${_n}:manager-quorum:"
elif [ -n "$nodes_storage_gpfs" ] ; then
echo "${_n}:manager:"
else
echo "${_n}:manager-quorum:"
fi
done
for _n in $(echo "$nodes_storage_gpfs" | sed -e 's@,@ @g') ; do
echo "${_n}:manager-quorum:"
done
} >"$_nodefile"
echo "Creating cluster"
# Don't quote secondary, since it might not exist
mmcrcluster -N "$_nodefile" \
-p "$_primary" ${_secondary:+-s} $_secondary \
-r /usr/bin/ssh -R /usr/bin/scp -C "${cluster_name}.${_domain}"
# GPFS >= 3.3 needs this. Earlier versions don't have
# mmchlicense, so be careful.
if type mmchlicense >/dev/null 2>&1 ; then
echo
echo "Attempting to set server license mode for all nodes"
mmchlicense server --accept -N all
fi
echo
echo "Attempting to set adminMode=allToAll"
mmchconfig adminMode=allToAll </dev/null || true
echo
echo "Generating auth key"
mmauth genkey new
echo
echo "Setting GPFS config options"
mmchconfig autoload=yes,leaseRecoveryWait=3,maxFilesToCache=20000,failureDetectionTime=10,maxMBpS=500,unmountOnDiskFail=yes,pagepool=64M,allowSambaCaseInsensitiveLookup=no
mmchconfig cipherList=AUTHONLY
echo "Starting gpfs"
mmstartup -a
echo "Waiting for gpfs to become active"
_count=0
while mmgetstate -a | tail -n +4 | grep -v " active" > /dev/null; do
echo -n "."
_count=$(($_count + 1))
if [ $_count -gt 60 ] ; then
echo "TIMEOUT: gpfs didn't become active"
exit 1
fi
sleep 1
done
echo
}
nsdfile="${dir}/gpfs_nsds_all.${cluster_name}"
# Uses: nodes_storage_gpfs
# Sets: nsdfile
gpfs_mknsd ()
{
echo
echo "Setting up NSDs"
# Create an extended regexp that matches any of the IDs
pat=$(echo "$shared_disk_ids" | sed -e 's@ *@|@g')
# Now get devices and names from multipath
multipath -dl |
sed -r -n -e "s@^[^[:space:]]+[[:space:]]+\(($pat)\)[[:space:]](dm-[^[:space:]]+).*@\1 \2@p" |
while read _name _disk ; do
_name=$(echo "$_name" | tr -d -c '[:alnum:]')
echo "${_disk}:${nodes_storage_gpfs}::dataAndMetadata:1:${_name}:"
done >"$nsdfile"
mmcrnsd -F "$nsdfile"
mmlsnsd -m
}
# Uses: mountpoint, gpfs_num_nsds, nsdfile
gpfs_mkfs ()
{
echo
echo "Creating filesystem"
if [ ! -r "$nsdfile" ] ; then
echo "ERROR: missing NSD file \"${nsdfile}\""
exit 1
fi
mkdir -p "${mountpoint}/automountdir"
nsdfile2="${dir}/gpfs_nsds_defaultfs.${cluster_name}"
if [ -n "$gpfs_num_nsds" ] ; then
head -n $(($gpfs_num_nsds * 2))
else
cat
fi <"$nsdfile" >"$nsdfile2"
chattr +i "$mountpoint"
mmcrfs gpfs0 -F "$nsdfile2" \
-A yes -Q yes -D nfs4 -B 64k -k nfs4 -n 32 -E yes -S no \
-T "$mountpoint" -i 512
rm -f "$nsdfile2"
}
gpfs_mount ()
{
echo
echo "Mounting filesystem"
mmmount gpfs0 -a
echo "Waiting for gpfs to mount"
while ! findmnt "$mountpoint" ; do
echo -n "."
sleep 1
done
echo
}
gpfs_complete ()
{
echo "GPFS setup complete"
}
[ -n "$1" ] || set -- setup mknsd mkfs mount complete
for action ; do
gpfs_$action
done
|
