Release Notes

Limitations
The following limitations exist in this release:
Table 6. Limitations in Storage Manager 2020 R1
Limitation Description
Planned Failover of Live
Volumes in SRM 8.2 and 8.3
SRM 8.2 and 8.3 fail to send the ReverseReplication command to the Dell Storage Replication
Adapter (SRA) during the planned failover of Live Volumes. To resolve this issue, perform the
following steps on the servers that are running SRM 8.2 or 8.3 at both sites:
1. On the servers that are running SRM, open the vmware-dr.xml file in a text editor.
● The default location of the vmware-dr.xml file in Windows is C:\Program
Files\VMware\VMware vCenter Site Recovery Manager\config\vmware-
dr.xml.
● The default location of the vmware-dr.xml file in the Photon-based SRM is /opt/
vmware/srm/conf/vmware-dr.xml.
2. Search for the XML tag <storage> in the file.
3. Add the following entry between the XML tags <storage> </storage> :
<forcePrepareAndReverseReplicationForNoopDevices>true</
forcePrepareAndReverseReplicationForNoopDevices>
4. Save the changes to the vmware-dr.xml file.
5. Restart the SRM service on the servers at both sites.
Storage Manager Scalability To optimize performance and prevent connectivity issues, Dell EMC recommends that one
Data Collector manages no more than ten Storage Centers. A Data Collector may exceed that
recommendation depending on the network latency, I/O load, and number of volumes.
Unisphere Central features The following features are not available in Unisphere Central:
● Chargeback
● FluidFS management
● PS Series Group management
Environmental and system requirements
This section describes the environmental and system requirements in this release.
The following table lists products that are compatible with Storage Manager:
Table 7. Storage Manager Compatibility
Product Versions
Storage Center 7.2 – 7.5
PS Series group firmware 9.0 – 10.0
Dell FluidFS 6.0.400016
Microsoft System Center Virtual Machine Manager (SCVMM) 2012, 2012 SP1, 2012 R2, 2016, and 2019
● VMware vCenter Site Recovery Manager (SRM) for
Windows
● VMware vCenter Photon-based SRM
● 8.1, 8.1.1, 8.2, and 8.3
● 8.2 and 8.3
NOTE: A Storage Center must have Fibre Channel or
iSCSI front-end ports to work with SRM.
Dell Storage Replication Adapter (SRA) for Windows 18.1.1.173
Dell SRA for Photon-based SRM 20.1.1.13
DSITV and DSVCP 6.0
The following table lists the Storage Manager Client requirements:
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