VCF Import tool prechecks failures on the SDDC - "Please check if the cluster has common datastore for all hosts which is VSAN skyline health check compatible or with NFS3 version or FC storage"

Products

• VMware SDDC Manager

Issue/Introduction

When using NFS or FC the default cluster with 3 nodes (minimum configuration), the precheck fails on the vCenter. 

Error in the /var/log/vmware/vcf/operationsmanager/operationsmanager.log:

 

YYYY-MM-DDTHH:MM:SS.715+0000 DEBUG [vcf_om,xxxxxxxxxxxxxxxx,4009] [c.v.v.b.p.t.v.v.ExternalValidationValidator,precheck-validation8] Running NATIVE validator primary-data-store-pre-import-validator on cluster entity with name <cluster_name> - validation run id c78b3d4d-2ae7-4b05-8864-ac3133c0df77
YYYY-MM-DDTHH:MM:SS.717+0000 INFO  [vcf_om,xxxxxxxxxxxxxxxx,4009] [c.v.v.b.c.v.ClusterPrimaryDataStorePreImportValidator,precheck-validation8] Found following shared datastores among all hosts in cluster: <cluster_name>, datastores: [<datastore_name>]
YYYY-MM-DDTHH:MM:SS.717+0000 INFO  [vcf_om,xxxxxxxxxxxxxxxx,4009] [c.v.v.b.c.v.ClusterPrimaryDataStorePreImportValidator,precheck-validation8] Cluster: <cluster_name> doesn't have any common datastore across all hosts in the cluster with  vSAN storage type
YYYY-MM-DDTHH:MM:SS.718+0000 DEBUG [vcf_om,xxxxxxxxxxxxxxxx,4009] [c.v.v.b.c.v.u.ClusterSizeValidationUtil,precheck-validation8] Validating cluster <cluster_name> size is supported for check type CONVERT
YYYY-MM-DDTHH:MM:SS.718+0000 DEBUG [vcf_om,xxxxxxxxxxxxxxxx,4009] [c.v.v.b.c.v.u.ClusterSizeValidationUtil,precheck-validation8] Checking if cluster with size 3, vlcmEnabled false, and storage type non-vSAN is supported
YYYY-MM-DDTHH:MM:SS.718+0000 DEBUG [vcf_om,xxxxxxxxxxxxxxxx,4009] [c.v.v.b.c.v.ClusterPrimaryDataStorePreImportValidator,precheck-validation8] For external storage datastore type, cluster <cluster_name> size is supported is: false

Environment

VCF 5.x

Resolution

Workaround:

1. Take a snapshot of the VCF appliance.

2. SSH into VCF appliance and elevate to root user

   su

3. Add the following property override into operationsmanager's application.properties

   echo 'vcf.bion.minclustersize.convert.mgmt.cluster.default.size=3' >> /etc/vmware/vcf/operationsmanager/application.properties

   NOTE: Make sure you have the "append" directive (">>") in that above command to append and not replace that file

4. Restart operationsmanager

   systemctl restart operationsmanager

5. Wait until operationsmanager to become healthy after restart

   curl localhost/operationsmanager/about

   NOTE: you should get a JSON response with version information and "status": "ACTIVE"

6. Once the service is up, retry the precheck.