Release Notes

Table 12. Known issues in Storage Center 7.5.1 (continued)
Issue Functional area Description Workaround/Resolution
www.dell.com/support/home/us/en/19/
Drivers/DriversDetails?driverId=6RGDW.
SQAI-3 Vendors Software FCoE timeouts might occur when
using CNAs in NIC mode.
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 Vendors 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.
Update to the latest Dell custom images of
ESXi 5.5, 6.0, or 6.5.
SQAI-1 Vendors 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.
Update to Emulex 12002 boot code version
11.20a8 or later.
SCOS-27133 Vendors 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.
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 this release:
Table 13. Limitations in Storage Center 7.5.1
Limitation Description
Portable Volumes Storage Center 7.5.1 does not support Portable Volumes. Portable Volumes are supported in
Storage Center 7.2 or earlier.
Environmental and system requirements
This section describes environmental and system requirements in this release.
Storage Manager 2020 R1 or later is required to manage storage systems running Storage Center 7.5.1 and Storage Center 7.5.1
supports the following storage system models:
● SC9000
● SC8000
● SC7020F
● SC7020
● SC5020F
● SC5020
● SC4020
● SCv3000 Series
● SCv2000 Series
NOTE:
Storage Center 7.5.1 supports cabling mixed-speed expansion enclosures. SC400, SC420, and SC420F expansion
enclosures can be cabled with SC200 and SC220 expansion enclosures.
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