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1031c31e6a
This PR provides a new primary storage volume type called "FiberChannel" that allows access to volumes connected to hosts over fiber channel connections. It requires Multipath to provide path discovery and failover. Second, the PR adds an AdaptivePrimaryDatastoreProvider that abstracts how volumes are managed/orchestrated from the connector to communicate with the primary storage provider, using a ProviderAdapter interface, allowing the code interacting with the primary storage provider API's to be simpler and have no direct dependencies on Cloudstack code. Lastly, the PR provides an implementation of the ProviderAdapter classes for the HP Enterprise Primera line of storage solutions and the Pure Flash Array line of storage solutions.
72 lines
2.8 KiB
Bash
72 lines
2.8 KiB
Bash
#!/usr/bin/env bash
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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#########################################################################################
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#
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# Given a WWID, cleanup/remove any multipath and devices associated with this WWID. This
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# may not always have lasting result because if the storage array still has the volume
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# visable to the host, it may be rediscovered. The cleanupStaleMaps.sh script should
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# catch those cases
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#
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#########################################################################################
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WWID=${1:?"WWID required"}
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WWID=$(echo $WWID | tr '[:upper:]' '[:lower:]')
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echo "$(date): Removing ${WWID}"
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systemctl is-active multipathd || systemctl restart multipathd || {
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echo "$(date): Multipathd is NOT running and cannot be started. This must be corrected before this host can access this storage volume."
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logger -t "CS_SCSI_VOL_REMOVE" "${WWID} cannot be disconnected from this host because multipathd is not currently running and cannot be started"
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exit 1
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}
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# first get dm- name
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DM_NAME=$(ls -lrt /dev/mapper/3${WWID} | awk '{ print $NF }' | awk -F'/' '{print $NF}')
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SLAVE_DEVS=""
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if [ -z "${DM_NAME}" ]; then
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logger -t CS_SCSI_VOL_REMOVE "${WWID} has no active multimap so no removal performed"
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logger -t CS_SCSI_VOL_REMOVE "WARN: dm name could not be found for ${WWID}"
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dmsetup remove /dev/mapper/*${WWID}
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logger -t CS_SCSI_VOL_REMOVE "${WWID} removal via dmsetup remove /dev/mapper/${WWID} finished with return code $?"
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else
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# now look for slave devices and save for deletion
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for dev in $(ls /sys/block/${DM_NAME}/slaves/ 2>/dev/null); do
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SLAVE_DEVS="${SLAVE_DEVS} ${dev}"
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done
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fi
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# delete the path map last
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multipath -f 3${WWID}
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# now delete slave devices
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# https://bugzilla.redhat.com/show_bug.cgi?id=1949369
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if [ ! -z "${SLAVE_DEVS}" ]; then
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for dev in ${SLAVE_DEVS}; do
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multipathd del path /dev/${dev}
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echo "1" > /sys/block/${dev}/device/delete
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logger -t CS_SCSI_VOL_REMOVE "${WWID} removal of device ${dev} complete"
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done
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fi
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logger -t CS_SCSI_VOL_REMOVE "${WWID} successfully purged from multipath along with slave devices"
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echo "$(date): ${WWID} removed"
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exit 0
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