Examples with RemoteDirectorGroup com.emc.storageos.db.client.model.RemoteDirectorGroup used on opensource projects

Example 1 with RemoteDirectorGroup

use of com.emc.storageos.db.client.model.RemoteDirectorGroup in project coprhd-controller by CoprHD.

the class SRDFDeviceController method createNonCGSRDFVolumes.

protected void createNonCGSRDFVolumes(Workflow workflow, String waitFor, List<VolumeDescriptor> sourceDescriptors, Map<URI, Volume> uriVolumeMap) {
    for (VolumeDescriptor sourceDescriptor : sourceDescriptors) {
        Volume source = uriVolumeMap.get(sourceDescriptor.getVolumeURI());
        // this will be null for normal use cases except vpool change
        URI vpoolChangeUri = getVirtualPoolChangeVolume(sourceDescriptors);
        log.info("VPoolChange URI {}", vpoolChangeUri);
        StringSet srdfTargets = source.getSrdfTargets();
        for (String targetStr : srdfTargets) {
            URI targetURI = URI.create(targetStr);
            Volume target = uriVolumeMap.get(targetURI);
            RemoteDirectorGroup group = dbClient.queryObject(RemoteDirectorGroup.class, target.getSrdfGroup());
            StorageSystem system = dbClient.queryObject(StorageSystem.class, group.getSourceStorageSystemUri());
            Workflow.Method createMethod = createSRDFVolumePairMethod(system.getId(), source.getId(), targetURI, vpoolChangeUri);
            Workflow.Method rollbackMethod = rollbackSRDFLinkMethod(system.getId(), source.getId(), targetURI, false);
            // Ensure CreateElementReplica steps are executed sequentially (CQ613404)
            waitFor = workflow.createStep(CREATE_SRDF_MIRRORS_STEP_GROUP, CREATE_SRDF_MIRRORS_STEP_DESC, waitFor, system.getId(), system.getSystemType(), getClass(), createMethod, rollbackMethod, null);
        }
    }
}

Example 2 with RemoteDirectorGroup

use of com.emc.storageos.db.client.model.RemoteDirectorGroup in project coprhd-controller by CoprHD.

the class SRDFDeviceController method addStepsForExpandVolume.

// TODO : JIRA CTRL-5335 SRDF expand needs to go via BlockOrchestrationController. Close this JIRA.
@Override
public String addStepsForExpandVolume(Workflow workflow, String waitFor, List<VolumeDescriptor> descriptors, String task) {
    TaskCompleter completer = null;
    descriptors = VolumeDescriptor.filterByType(descriptors, VolumeDescriptor.Type.SRDF_SOURCE);
    if (descriptors.isEmpty()) {
        return waitFor;
    }
    if (descriptors.size() > 1) {
        throw WorkflowException.exceptions.workflowConstructionError("SRDFDeviceController.addStepsForExpandVolume only supports one source volume");
    }
    VolumeDescriptor descriptor = descriptors.get(0);
    Long size = descriptor.getVolumeSize();
    List<URI> uris = VolumeDescriptor.getVolumeURIs(descriptors);
    URI volumeId = uris.get(0);
    try {
        Volume source = dbClient.queryObject(Volume.class, volumeId);
        StringSet targets = source.getSrdfTargets();
        List<URI> combined = Lists.newArrayList();
        combined.add(source.getId());
        combined.addAll(transform(targets, FCTN_STRING_TO_URI));
        completer = new SRDFExpandCompleter(combined, task);
        if (null != targets) {
            for (String targetURI : targets) {
                Volume target = dbClient.queryObject(Volume.class, URI.create(targetURI));
                log.info("target Volume {} with srdf group {}", target.getNativeGuid(), target.getSrdfGroup());
                RemoteDirectorGroup group = dbClient.queryObject(RemoteDirectorGroup.class, target.getSrdfGroup());
                StorageSystem system = dbClient.queryObject(StorageSystem.class, group.getSourceStorageSystemUri());
                Set<String> volumes = findVolumesPartOfRDFGroups(system, group);
                if (group.getVolumes() == null) {
                    group.setVolumes(new StringSet());
                }
                group.getVolumes().replace(volumes);
                dbClient.persistObject(group);
                if (!source.hasConsistencyGroup()) {
                    // First we suspend the mirror...
                    Workflow.Method suspendMethod = suspendSRDFLinkMethod(system.getId(), source.getId(), target.getId(), true);
                    // TODO Belongs as a rollback for the detach step
                    Workflow.Method rollbackMethod = createSRDFVolumePairMethod(system.getId(), source.getId(), target.getId(), null);
                    String suspendStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, SPLIT_SRDF_MIRRORS_STEP_DESC, waitFor, system.getId(), system.getSystemType(), getClass(), suspendMethod, rollbackMethod, null);
                    // Second we detach the mirror...
                    Workflow.Method detachMethod = detachVolumePairMethod(system.getId(), source.getId(), target.getId());
                    String detachStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, DETACH_SRDF_MIRRORS_STEP_DESC, suspendStep, system.getId(), system.getSystemType(), getClass(), detachMethod, null, null);
                    // Expand the source and target Volumes
                    String expandStep = addExpandBlockVolumeSteps(workflow, detachStep, source.getPool(), volumeId, size, task);
                    // resync source and target again
                    waitFor = createSyncSteps(workflow, expandStep, source, system);
                } else {
                    if (volumes.size() == 1) {
                        // split all members the group
                        Workflow.Method splitMethod = splitSRDFGroupLinkMethod(system.getId(), source.getId(), target.getId(), false);
                        String splitStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, SPLIT_SRDF_MIRRORS_STEP_DESC, waitFor, system.getId(), system.getSystemType(), getClass(), splitMethod, null, null);
                        // Second we detach the group...
                        Workflow.Method detachMethod = detachGroupPairsMethod(system.getId(), source.getId(), target.getId());
                        Workflow.Method resumeMethod = resumeGroupPairsMethod(system.getId(), source.getId(), target.getId());
                        String detachMirrorStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, DETACH_SRDF_MIRRORS_STEP_DESC, splitStep, system.getId(), system.getSystemType(), getClass(), detachMethod, resumeMethod, null);
                        // Expand the source and target Volumes
                        String expandStep = addExpandBlockVolumeSteps(workflow, detachMirrorStep, source.getPool(), volumeId, size, task);
                        // re-establish again
                        List<URI> sourceURIs = new ArrayList<URI>();
                        sourceURIs.add(source.getId());
                        List<URI> targetURIs = new ArrayList<URI>();
                        targetURIs.add(target.getId());
                        Workflow.Method createGroupsMethod = createSrdfCgPairsMethod(system.getId(), sourceURIs, targetURIs, null);
                        waitFor = workflow.createStep(CREATE_SRDF_MIRRORS_STEP_GROUP, CREATE_SRDF_MIRRORS_STEP_DESC, expandStep, system.getId(), system.getSystemType(), getClass(), createGroupsMethod, null, null);
                    } else {
                        // First we remove the sync pair from Async CG...
                        Workflow.Method removeAsyncPairMethod = removePairFromGroup(system.getId(), source.getId(), target.getId(), true);
                        List<URI> sourceUris = new ArrayList<URI>();
                        sourceUris.add(system.getId());
                        String removePairFromGroupWorkflowDesc = String.format(REMOVE_SRDF_PAIR_STEP_DESC, target.getSrdfCopyMode());
                        String detachVolumePairWorkflowDesc = String.format(DETACH_SRDF_PAIR_STEP_DESC, target.getSrdfCopyMode());
                        Workflow.Method addSyncPairMethod = addVolumePairsToCgMethod(system.getId(), sourceUris, group.getId(), null);
                        String removeAsyncPairStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, removePairFromGroupWorkflowDesc, waitFor, system.getId(), system.getSystemType(), getClass(), removeAsyncPairMethod, addSyncPairMethod, null);
                        // split the removed async pair
                        Workflow.Method suspend = suspendSRDFLinkMethod(system.getId(), source.getId(), target.getId(), true);
                        Workflow.Method resumeSyncPairMethod = resumeSyncPairMethod(system.getId(), source.getId(), target.getId());
                        String suspendStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, SPLIT_SRDF_MIRRORS_STEP_DESC, removeAsyncPairStep, system.getId(), system.getSystemType(), getClass(), suspend, resumeSyncPairMethod, null);
                        // Finally we detach the removed async pair...
                        Workflow.Method detachAsyncPairMethod = detachVolumePairMethod(system.getId(), source.getId(), target.getId());
                        Workflow.Method createSyncPairMethod = createSRDFVolumePairMethod(system.getId(), source.getId(), target.getId(), null);
                        String detachStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, detachVolumePairWorkflowDesc, suspendStep, system.getId(), system.getSystemType(), getClass(), detachAsyncPairMethod, createSyncPairMethod, null);
                        // Expand the source and target Volumes
                        String expandStep = addExpandBlockVolumeSteps(workflow, detachStep, source.getPool(), volumeId, size, task);
                        // create Relationship again
                        waitFor = createSrdfCGPairStepsOnPopulatedGroup(source, expandStep, workflow);
                    }
                }
            }
        }
    } catch (Exception e) {
        log.error("Failed SRDF Expand Volume operation ", e);
        completeAsError(completer, DeviceControllerException.errors.jobFailed(e), task);
        throw e;
    }
    return waitFor;
}

Example 3 with RemoteDirectorGroup

use of com.emc.storageos.db.client.model.RemoteDirectorGroup in project coprhd-controller by CoprHD.

the class SRDFDeviceController method expandVolume.

@Override
public void expandVolume(URI storage, URI pool, URI volumeId, Long size, String task) throws InternalException {
    TaskCompleter completer = null;
    Workflow workflow = workflowService.getNewWorkflow(this, "expandVolume", true, task);
    String waitFor = null;
    try {
        Volume source = dbClient.queryObject(Volume.class, volumeId);
        StringSet targets = source.getSrdfTargets();
        List<URI> combined = Lists.newArrayList();
        combined.add(source.getId());
        combined.addAll(transform(targets, FCTN_STRING_TO_URI));
        completer = new SRDFExpandCompleter(combined, task);
        if (null != targets) {
            for (String targetURI : targets) {
                Volume target = dbClient.queryObject(Volume.class, URI.create(targetURI));
                log.info("target Volume {} with srdf group {}", target.getNativeGuid(), target.getSrdfGroup());
                RemoteDirectorGroup group = dbClient.queryObject(RemoteDirectorGroup.class, target.getSrdfGroup());
                StorageSystem system = dbClient.queryObject(StorageSystem.class, group.getSourceStorageSystemUri());
                Set<String> volumes = findVolumesPartOfRDFGroups(system, group);
                if (group.getVolumes() == null) {
                    group.setVolumes(new StringSet());
                }
                group.getVolumes().replace(volumes);
                dbClient.persistObject(group);
                if (!source.hasConsistencyGroup()) {
                    // First we suspend the mirror...
                    Workflow.Method suspendMethod = suspendSRDFLinkMethod(system.getId(), source.getId(), target.getId(), true);
                    // TODO Belongs as a rollback for the detach step
                    Workflow.Method rollbackMethod = createSRDFVolumePairMethod(system.getId(), source.getId(), target.getId(), null);
                    String suspendStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, SPLIT_SRDF_MIRRORS_STEP_DESC, waitFor, system.getId(), system.getSystemType(), getClass(), suspendMethod, rollbackMethod, null);
                    // Second we detach the mirror...
                    Workflow.Method detachMethod = detachVolumePairMethod(system.getId(), source.getId(), target.getId());
                    String detachStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, DETACH_SRDF_MIRRORS_STEP_DESC, suspendStep, system.getId(), system.getSystemType(), getClass(), detachMethod, null, null);
                    // Expand the source and target Volumes
                    String expandStep = addExpandBlockVolumeSteps(workflow, detachStep, pool, volumeId, size, task);
                    // resync source and target again
                    createSyncSteps(workflow, expandStep, source, system);
                } else {
                    if (volumes.size() == 1) {
                        // split all members the group
                        Workflow.Method splitMethod = splitSRDFGroupLinkMethod(system.getId(), source.getId(), target.getId(), false);
                        String splitStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, SPLIT_SRDF_MIRRORS_STEP_DESC, waitFor, system.getId(), system.getSystemType(), getClass(), splitMethod, null, null);
                        // Second we detach the group...
                        Workflow.Method detachMethod = detachGroupPairsMethod(system.getId(), source.getId(), target.getId());
                        Workflow.Method resumeMethod = resumeGroupPairsMethod(system.getId(), source.getId(), target.getId());
                        String detachMirrorStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, DETACH_SRDF_MIRRORS_STEP_DESC, splitStep, system.getId(), system.getSystemType(), getClass(), detachMethod, resumeMethod, null);
                        // Expand the source and target Volumes
                        String expandStep = addExpandBlockVolumeSteps(workflow, detachMirrorStep, pool, volumeId, size, task);
                        // re-establish again
                        List<URI> sourceURIs = new ArrayList<URI>();
                        sourceURIs.add(source.getId());
                        List<URI> targetURIs = new ArrayList<URI>();
                        targetURIs.add(target.getId());
                        Workflow.Method createGroupsMethod = createSrdfCgPairsMethod(system.getId(), sourceURIs, targetURIs, null);
                        workflow.createStep(CREATE_SRDF_MIRRORS_STEP_GROUP, CREATE_SRDF_MIRRORS_STEP_DESC, expandStep, system.getId(), system.getSystemType(), getClass(), createGroupsMethod, null, null);
                    } else {
                        // First we remove the sync pair from Async CG...
                        Workflow.Method removeAsyncPairMethod = removePairFromGroup(system.getId(), source.getId(), target.getId(), true);
                        List<URI> sourceUris = new ArrayList<URI>();
                        sourceUris.add(system.getId());
                        String removePairFromGroupWorkflowDesc = String.format(REMOVE_SRDF_PAIR_STEP_DESC, target.getSrdfCopyMode());
                        String detachVolumePairWorkflowDesc = String.format(DETACH_SRDF_PAIR_STEP_DESC, target.getSrdfCopyMode());
                        Workflow.Method addSyncPairMethod = addVolumePairsToCgMethod(system.getId(), sourceUris, group.getId(), null);
                        String removeAsyncPairStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, removePairFromGroupWorkflowDesc, waitFor, system.getId(), system.getSystemType(), getClass(), removeAsyncPairMethod, addSyncPairMethod, null);
                        // split the removed async pair
                        Workflow.Method suspend = suspendSRDFLinkMethod(system.getId(), source.getId(), target.getId(), true);
                        Workflow.Method resumeSyncPairMethod = resumeSyncPairMethod(system.getId(), source.getId(), target.getId());
                        String suspendStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, SPLIT_SRDF_MIRRORS_STEP_DESC, removeAsyncPairStep, system.getId(), system.getSystemType(), getClass(), suspend, resumeSyncPairMethod, null);
                        // Finally we detach the removed async pair...
                        Workflow.Method detachAsyncPairMethod = detachVolumePairMethod(system.getId(), source.getId(), target.getId());
                        Workflow.Method createSyncPairMethod = createSRDFVolumePairMethod(system.getId(), source.getId(), target.getId(), null);
                        String detachStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, detachVolumePairWorkflowDesc, suspendStep, system.getId(), system.getSystemType(), getClass(), detachAsyncPairMethod, createSyncPairMethod, null);
                        // Expand the source and target Volumes
                        String expandStep = addExpandBlockVolumeSteps(workflow, detachStep, pool, volumeId, size, task);
                        // create Relationship again
                        createSrdfCGPairStepsOnPopulatedGroup(source, expandStep, workflow);
                    }
                }
            }
        }
        String successMessage = String.format("Workflow of SRDF Expand Volume %s successfully created", volumeId);
        workflow.executePlan(completer, successMessage);
    } catch (Exception e) {
        log.error("Failed SRDF Expand Volume operation ", e);
        completeAsError(completer, DeviceControllerException.errors.jobFailed(e), task);
    }
}

Example 4 with RemoteDirectorGroup

use of com.emc.storageos.db.client.model.RemoteDirectorGroup in project coprhd-controller by CoprHD.

the class SRDFDeviceController method deleteAllSrdfVolumesInCG.

/**
 * Delete All SRDF Volumes in CG in one attempt.
 *
 * @param sourcesVolumeMap
 * @param workflow
 * @param waitFor
 * @return
 */
private String deleteAllSrdfVolumesInCG(Map<URI, Volume> sourcesVolumeMap, final Workflow workflow, String waitFor, final List<VolumeDescriptor> sourceDescriptors) {
    // TODO Improve this logic
    Volume sourceVolume = sourcesVolumeMap.get(sourceDescriptors.get(0).getVolumeURI());
    Volume targetVolume = getFirstTarget(sourceVolume);
    if (targetVolume == null) {
        log.info("No target volume available for source {}", sourceVolume.getId());
        return waitFor;
    }
    RemoteDirectorGroup group = dbClient.queryObject(RemoteDirectorGroup.class, targetVolume.getSrdfGroup());
    StorageSystem sourceSystem = dbClient.queryObject(StorageSystem.class, group.getSourceStorageSystemUri());
    StorageSystem targetSystem = dbClient.queryObject(StorageSystem.class, group.getRemoteStorageSystemUri());
    // Suspend all members in the group
    Method method = suspendSRDFGroupLinkMethod(targetSystem.getId(), sourceVolume.getId(), targetVolume.getId(), false);
    String splitStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, SPLIT_SRDF_MIRRORS_STEP_DESC, waitFor, targetSystem.getId(), targetSystem.getSystemType(), getClass(), method, null, null);
    // Second we detach the group...
    Workflow.Method detachMethod = detachGroupPairsMethod(targetSystem.getId(), sourceVolume.getId(), targetVolume.getId());
    String detachMirrorStep = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, DETACH_SRDF_MIRRORS_STEP_DESC, splitStep, targetSystem.getId(), targetSystem.getSystemType(), getClass(), detachMethod, null, null);
    waitFor = detachMirrorStep;
    List<URI> targetVolumeIds = new ArrayList<URI>();
    for (Volume source : sourcesVolumeMap.values()) {
        StringSet srdfTargets = source.getSrdfTargets();
        for (String srdfTarget : srdfTargets) {
            log.info("suspend and detach: source:{}, target:{}", source.getId(), srdfTarget);
            URI targetURI = URI.create(srdfTarget);
            Volume target = dbClient.queryObject(Volume.class, targetURI);
            if (null == target) {
                log.warn("Target volume {} not available for SRDF source volume {}", source.getId(), targetURI);
                return DELETE_SRDF_MIRRORS_STEP_GROUP;
            }
            log.info("target Volume {} with srdf group {}", target.getNativeGuid(), target.getSrdfGroup());
            // Third we remove the device groups, a defensive step to remove
            // members from deviceGroups if it exists.
            Workflow.Method removeGroupsMethod = removeDeviceGroupsMethod(sourceSystem.getId(), source.getId(), targetURI);
            waitFor = workflow.createStep(DELETE_SRDF_MIRRORS_STEP_GROUP, REMOVE_DEVICE_GROUPS_STEP_DESC, waitFor, sourceSystem.getId(), sourceSystem.getSystemType(), getClass(), removeGroupsMethod, null, null);
        }
    }
    // refresh provider before invoking deleteVolume call
    if (null != targetSystem) {
        addStepToRefreshSystem(DELETE_SRDF_MIRRORS_STEP_GROUP, targetSystem, targetVolumeIds, waitFor, workflow);
    }
    return DELETE_SRDF_MIRRORS_STEP_GROUP;
}

Example 5 with RemoteDirectorGroup

use of com.emc.storageos.db.client.model.RemoteDirectorGroup in project coprhd-controller by CoprHD.

the class SRDFDeviceController method createCGSRDFVolumes.

protected void createCGSRDFVolumes(Workflow workflow, String waitFor, List<VolumeDescriptor> sourceDescriptors, List<VolumeDescriptor> targetDescriptors, Map<URI, Volume> uriVolumeMap) {
    RemoteDirectorGroup group = getRAGroup(targetDescriptors, uriVolumeMap);
    StorageSystem system = dbClient.queryObject(StorageSystem.class, group.getSourceStorageSystemUri());
    StorageSystem targetSystem = dbClient.queryObject(StorageSystem.class, group.getRemoteStorageSystemUri());
    // finding actual volumes from Provider
    Set<String> volumes = findVolumesPartOfRDFGroups(system, group);
    if (group.getVolumes() == null) {
        group.setVolumes(new StringSet());
    }
    /*
         * Check the following 2 conditions.
         * 1. If there are no volumes in RDFGroup on Array & volumes in RDFGroup in ViPR DB.
         * 2. If there are volumes in RDFGroup on Array & no volumes in RDFGroup in ViPR DB.
         */
    if ((group.getVolumes().isEmpty() && !volumes.isEmpty()) || (!group.getVolumes().isEmpty() && volumes.isEmpty())) {
        // throw Exception rediscover source and target arrays.
        log.warn("RDF Group {} out of sync with Array", group.getNativeGuid());
        List<URI> sourceURIs = VolumeDescriptor.getVolumeURIs(sourceDescriptors);
        List<URI> targetURIs = VolumeDescriptor.getVolumeURIs(targetDescriptors);
        URI vpoolChangeUri = getVirtualPoolChangeVolume(sourceDescriptors);
        for (URI sourceUri : sourceURIs) {
            Volume sourceVolume = dbClient.queryObject(Volume.class, sourceUri);
            if (null != sourceVolume) {
                log.info("Clearing source volume {}-->{}", sourceVolume.getNativeGuid(), sourceVolume.getId());
                if (null == vpoolChangeUri) {
                    // clear everything if not vpool change
                    sourceVolume.setPersonality(NullColumnValueGetter.getNullStr());
                    sourceVolume.setAccessState(Volume.VolumeAccessState.READWRITE.name());
                    sourceVolume.setInactive(true);
                    sourceVolume.setConsistencyGroup(NullColumnValueGetter.getNullURI());
                }
                if (null != sourceVolume.getSrdfTargets()) {
                    sourceVolume.getSrdfTargets().clear();
                }
                dbClient.updateObject(sourceVolume);
            }
        }
        for (URI targetUri : targetURIs) {
            Volume targetVolume = dbClient.queryObject(Volume.class, targetUri);
            if (null != targetVolume) {
                log.info("Clearing target volume {}-->{}", targetVolume.getNativeGuid(), targetVolume.getId());
                targetVolume.setPersonality(NullColumnValueGetter.getNullStr());
                targetVolume.setAccessState(Volume.VolumeAccessState.READWRITE.name());
                targetVolume.setSrdfParent(new NamedURI(NullColumnValueGetter.getNullURI(), NullColumnValueGetter.getNullStr()));
                targetVolume.setSrdfCopyMode(NullColumnValueGetter.getNullStr());
                targetVolume.setSrdfGroup(NullColumnValueGetter.getNullURI());
                targetVolume.setConsistencyGroup(NullColumnValueGetter.getNullURI());
                targetVolume.setInactive(true);
                dbClient.updateObject(targetVolume);
            }
        }
        throw DeviceControllerException.exceptions.srdfAsyncStepCreationfailed(group.getNativeGuid());
    }
    group.getVolumes().replace(volumes);
    dbClient.updateObject(group);
    if (volumes.isEmpty() && SupportedCopyModes.ALL.toString().equalsIgnoreCase(group.getSupportedCopyMode())) {
        log.info("RA Group {} was empty", group.getId());
        waitFor = createSrdfCgPairStepsOnEmptyGroup(sourceDescriptors, targetDescriptors, group, waitFor, workflow);
    } else {
        log.info("RA Group {} not empty", group.getId());
        waitFor = createSrdfCGPairStepsOnPopulatedGroup(sourceDescriptors, group, uriVolumeMap, waitFor, workflow);
    }
    // Generate workflow step to refresh target system after CG creation.
    if (null != system) {
        waitFor = addStepToRefreshSystem(CREATE_SRDF_MIRRORS_STEP_GROUP, system, null, waitFor, workflow);
    }
    if (null != targetSystem) {
        waitFor = addStepToRefreshSystem(CREATE_SRDF_MIRRORS_STEP_GROUP, targetSystem, null, waitFor, workflow);
    }
    // Refresh target volume properties
    Mode SRDFMode = getSRDFMode(sourceDescriptors, uriVolumeMap);
    if (Mode.ACTIVE.equals(SRDFMode)) {
        refreshVolumeProperties(targetDescriptors, targetSystem, waitFor, workflow);
    }
}