Release Notes
Table Of Contents
- Storage Center 7.4 Release Notes
- Document Revision History
- Compatibility
- New in Storage Center 7.4.21
- New in Storage Center 7.4.10
- New in Storage Center 7.4.2
- Storage Center 7.4 Feature Availability and Licenses
- Storage Center 7.4 Scalability
- Fixed Issues
- Fixed Issues Related to Alerts and Reporting
- Fixed Issues Related to Data Reduction
- Fixed Issues Related to Hardware
- Fixed Issues Related to Licensing, SupportAssist, and Updating
- Fixed Issues Related to Replication and Live Volume
- Fixed Issues Related to Security
- Fixed Issues Related to Storage Management
- Fixed Issues Related to the User Interface
- Known Issues
- Limitations
- Support Resources
Known Issues Related to Vendors
The following known issues are related to vendors:
Table 32. Known Vendor Issues
Issue Description
SCOS-62922 A Fibre Channel port may restart after being plugged into a Brocade Fibre Channel switch
running Fabric OS v8.2.0, v8.2.1, or v8.2.2 that also has multiple logical switches configured.
Workaround: Set the fabric.rdp_poll_cycle setting to 0 in the switch configuration for
Fabric OS v8.2.0, v8.2.1, or v8.2.2. This issue is fixed in Fabric OS v8.2.3 and v9.0.0.
SQAI-9 An ESXi 5.5 (Update 3b) host using FCoE and QLogic 8262 converged network adapters
(CNAs) might cause the host to fail during controller failovers.
Workaround: Update the QLogic firmware on the adapter. The QLogic firmware is available at
https://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=6RGDW.
SQAI-3 Software FCoE timeouts might occur when using CNAs in NIC mode.
Workaround: Update the QLogic firmware on the adapter. The QLogic firmware is available at
https://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=6RGDW.
SQAI-2 An ESXi 5.5 or 6.0 host with an Emulex FC/FCoE HBA running driver version 11.0.x.x might
reset during a controller failover.
Workaround: Update to the latest Dell custom images of ESXi 5.5, 6.0, or 6.5.
SQAI-1 Fibre Channel boot from SAN does not work with Emulex LPe12002 boot code version 7.00a2
and the Linux servers RHEL 6.8, SLES 12, and XenServer 7.0.
Workaround: Update to Emulex 12002 boot code version 11.20a8 or later.
SCOS-27133 Server bandwidth to the onboard 10 Gb Ethernet ports on an SC7020 drops significantly on
reads when the server iSCSI initiator has interrupt moderation set to default or enabled.
Workaround: For a Windows server, disable interrupt moderation on the iSCSI cards as
described in Dell EMC SC Series Storage: Microsoft Multipath I/O Best Practices. For
operating systems other than Windows, review the operating system documentation for
instructions on changing interrupt moderation settings. For example, on Linux use the
ethtool utility to change interrupt moderation settings.
Limitations
The following limitations exist in Storage Center 7.4:
Portable Volumes
Storage Center 7.4 does not support Portable Volumes.
Portable Volumes are supported in Storage Center 7.2 or earlier.
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