Release Notes

Known Issues Related to Data Reduction

The following known issues are related to Data Reduction:

Table 24. Known Data Reduction Issues in Storage Manager 2019 R1

Issue Description

SCOS-13237 The Storage Type Data Reduction statistics might be incorrect if the amount of data eligible for Data

Reduction contains fewer than 256 pages.

Workaround: None

Known Issues Related to the Dell Storage Replication Adapter

(SRA)

The following known issues are related to the Dell Storage Replication Adapter (SRA):

Table 25. Known Dell Storage Replication Adapter (SRA) Issues in Storage Manager 2019 R1

Issue Description

DSM-45610 Device discovery might fail in a Site Recovery Manager (SRM) environment due to transaction

rollbacks that occur when the Storage Manager Data Collector manages many more replications than

normal.

Workaround: None

DSM-43060 SRM might generate the following error message when a recovery or reprotect operation is

performed:

Unable to switch the site preference to the recovery site for the

device.

SRA command 'prepareFailover' failed for device.

Workaround:

1. Stop the Remote Data Collector.

2. Restart the Primary Data Collector.

3. Start the Remote Data Collector.

DSM-42715 SRM generates the following error message when two volumes use the same LUN number:

Duplicate LUN 'X' for initiatorGroup

Workaround: Ensure that the LUN numbers for all the volumes are unique.

DSM-28137 SRM planned failovers with Live Volumes fail when vMotion is not enabled in the environment.

Workaround: Dell Storage Replication Adapter (SRA) with Stretched Storage and Live Volumes

requires vMotion. Enable vMotion.

DSM-27978 The support link is broken when setting up Dell Storage Replication Adapter (SRA) on SRM 5.8.

Workaround: See support contact information at https://www.dell.com/learn/us/en/19/

flatcontentg/ps-compellent.

DSM-18751 The installation wizard for the Dell Storage Replication Adapter (SRA) allows you to begin updating

from an older version of SRA. Updating from previous versions of the SRA is not supported.

Workaround: Uninstall the previous version of SRA, and then install the new version.