NOTE:
These steps are a general outline of the replication setup. Refer to the following manuals for more information
about replication setup:
• See the
Dell EMC PowerVault ME4 Series Series Storage System Administrator’s Guide
for procedures to set up and
manage replications.
• See the
Dell EMC PowerVault ME4 Series Series Storage System CLI Guide
for replication commands and syntax.
NOTE:
Controller module firmware must be compatible on all systems that are used for replication.
Diagnostic steps for replication setup
The tables in the following section show menu navigation for virtual replication using the ME Storage Manager:
NOTE:
SAS controller enclosures do not support replication.
Can you successfully use the replication feature?
Table 22. Diagnostics for replication setup: Using the replication feature
Answer
Possible reasons
Action
Yes
System functioning properly
No action required.
No
Compatible firmware revision
supporting the replication feature
is not running on each system that
is used for replication.
Perform the following actions on each system used for virtual replication:
•
On the
System
topic, select
Action > Update Firmware
. The
Update
Firmware
panel opens. The Update Controller Modules tab shows firmware
versions that are installed in each controller.
•
If necessary, update the controller module firmware to ensure compatibility
with the other systems.
•
See the topic about updating firmware in the
Dell EMC PowerVault ME4
Series Storage System Administrator’s Guide
for more information about
compatible firmware.
No
Invalid cabling connection. (If
multiple enclosures are used, check
the cabling for each system.)
Verify controller enclosure cabling:
•
Verify use of proper cables.
•
Verify proper cabling paths for host connections.
•
Verify cabling paths between replication ports and switches are visible to one
another.
•
Verify that cable connections are securely fastened.
•
Inspect cables for damage and replace if necessary.
No
A system does not have a pool
that is configured.
Configure each system to have a storage pool.
Can you create a replication set?
After valid cabling, and network availability, create a replication set by selecting
Action > Create Replication Set
from the
Replications
topic.
Table 23. Diagnostics for replication setup – Creating a replication set
Answer
Possible reasons
Action
Yes
System functioning properly.
No action required.
No
On controller enclosures equipped
with iSCSI host interface ports,
replication set creation fails due to
use of CHAP.
If using , see the topics about configuring CHAP and working in replications
within the
Dell EMC PowerVault ME4 Series Storage System Administrator’s
Guide
.
No
Unable to create the secondary
volume (the destination volume on
•
Review event logs for indicators of a specific fault in a replication data path
component. Follow any Recommended Actions.
Cabling for replication
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