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Requirements and for Eyeglass Assisted SyncIQ Policy Failover
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Requirements and for Eyeglass Assisted SyncIQ Policy Failover

Following conditions are required for Eyeglass Assisted SyncIQ Policy Failover.

Cluster Version Requirements

Clusters participating in SyncIQ Policy Failover must be running the supported PowerScale Cluster version for this feature.  See the Feature Release Compatibility matrix in the “Eyeglass Release Notes” specific to your Eyeglass version found here.

SyncIQ Policy Requirements

For a SyncIQ Policy failover with Eyeglass, it is required that the Eyeglass Configuration Replication Job for that SyncIQ Policy is in the Enabled state.  

Note: If the SyncIQ Policy is disabled in OneFS or the corresponding Eyeglass Configuration Replication Job is disabled in Eyeglass the SyncIQ Policy failover will be blocked.

Failover Target Cluster Requirements

For a SyncIQ Policy failover with Eyeglass, it is required that the PowerScale Cluster that is the target of the failover be IP reachable by Eyeglass with the required ports open.

Eyeglass Quota Job Requirements

For a SyncIQ Policy failover with Eyeglass, there are no Eyeglass Quota Job state requirements.  Quotas will be failed over whether Eyeglass Quota Job is in Enabled or Disabled state.

Service Principal Name Update Requirements

DFS mode and Access Zone failover manage SPN updates automatically.  This is only required when SyncIQ policy failover includes direct mount shares.

Eyeglass will allow SyncIQ policy failover. However, Eyeglass  requires the storage administrator to selectively fix SPN values on the source and destination cluster. This will  ensure that data sets that remain on the source cluster still process SPN authentications via Kerberos using the source cluster machine account.  This is the reason the user will be required to manually make the SPN deletes and additions on the target cluster, as the PowerScale cluster  does not know which SPN and SmartConnect Zones are related to the SMB Shares.

SPN deletes from the source, followed by SPN add on the target. This must be done manually by reviewing the Smartconnect Zones required for the failover.

Consult the EMC documentation of ISI commands required to add or delete SPN’s on computer accounts.

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