Dell PowerStore 1200T EMC PowerStore Release Notes for PowerStore OS Version 3 - Page 6

PowerStore Cluster if the Source, Data Protection

Page 6 highlights

Issue ID MDT-361933 MDT-414572 MDT-322339 MDT-316424 MDT-312619 MDT-309462 MDT-299182 Functional Area Description Workaround/Resolution Data Protection In a NAS replication pair, when a replicated File system is deleted, and a new File system with same name is created on the source side and added to the replication, old content on the target File System with same name will be overwritten by new data from the newly added source File System. None Data Protection Replication Sessions status are not correctly reflected on the Destination PowerStore Cluster if the Source PowerStore Cluster is down. Refer to the Remote System related information and alerts on the Destination PowerStore Cluster for up-to-date details and suggested steps to recover. Data Protection When moving the replication tag from one IP Port to another, existing replication session could enter 'System Paused' state and result in an alert. Follow the alert's related corrective actions and run the 'verify' operation on the associated configured remote systems. Data Protection Customer network environment may drop jumbo frames or block them from being transmitted over the network. As a result, the replication session status can change to System Paused during the replication session synchronization. Decrease cluster MTU size to 1500. In PowerStore 2.0 and higher, there is an option to configure specific ports for replication and set a dedicated VLAN with a different MTU. It is recommended to separate the replication ports and configure the MTU to 1500 to allow flawless replication and keep MTU 9000 for the local area network only Data Protection When replication IPs change, they are not automatically detected. As a result, a replication session's status changes to 'System Paused'. Run 'Remote System Verify' operation to update the connectivity matrix. The next synchronization cycle will update the replication IP addresses. Data Protection When the user pauses a replication session on the destination cluster during NDU of the source cluster, a post-NDU state may occur, where the source replication session is in System Paused state and the destination replication session is in Paused state. Pause the replication session on the source cluster (where the session is in System Paused state) and then resume the replication session. Data Protection In a large configuration, pausing or deleting a replication session may take longer when the session is queued for synchronization. None 6 Known Issues

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6
Known Issues
Issue ID
Functional
Area
Description
Workaround/Resolution
MDT-361933
Data Protection
In a NAS replication pair, when a
replicated File system is deleted, and a
new File system with same name is
created on the source side and added
to the replication, old content on the
target File System with same name will
be overwritten by new data from the
newly added source File System.
None
MDT-414572
Data Protection
Replication Sessions status are not
correctly reflected on the Destination
PowerStore Cluster if the Source
PowerStore Cluster is down.
Refer to the Remote System related
information and alerts on the Destination
PowerStore Cluster for up-to-date
details and suggested steps to recover.
MDT-322339
Data Protection
When moving the replication tag from
one IP Port to another, existing
replication session could enter ‘System
Paused’ state and result in an alert.
Follow the alert’s related corrective
actions and run the ‘verify’ operation on
the associated configured remote
systems.
MDT-316424
Data Protection
Customer network environment may
drop jumbo frames or block them from
being transmitted over the network. As
a result, the replication session status
can change to System Paused during
the replication session synchronization.
Decrease cluster MTU size to 1500.
In PowerStore 2.0 and higher, there is an
option to configure specific ports for
replication and set a dedicated VLAN
with a different MTU.
It is recommended to separate the
replication ports and configure the MTU
to 1500 to allow flawless replication and
keep MTU 9000 for the local area
network only
MDT-312619
Data Protection
When replication IPs change, they are
not automatically detected. As a result,
a replication session’s status changes
to ‘System Paused’.
Run ‘Remote System Verify’ operation to
update the connectivity matrix. The next
synchronization cycle will update the
replication IP addresses.
MDT-309462
Data Protection
When the user pauses a replication
session on the destination cluster
during NDU of the source cluster, a
post-NDU state may occur, where the
source replication session is in System
Paused state and the destination
replication session is in Paused state.
Pause the replication session on the
source cluster (where the session is in
System Paused state) and then resume
the replication session.
MDT-299182
Data Protection
In a large configuration, pausing or
deleting a replication session may take
longer when the session is queued for
synchronization.
None