Release Notes

ManualsBrandsDell ManualsCompellent (SCStorage SC7020

Table Of Contents

Document Number: 680-021-023

Rev. B

July 2021

Storage Center 7.5.1 Release Notes

This document describes the new features and changes in this release of Storage Center.

Current Release Version: 7.5.1

Release Type: Major (MA)

Topics:

• Revision History

• Product description

• New features

• Changed features

• Resolved issues

• Known issues

• Limitations

•

Environmental and system requirements

• Installation and upgrade considerations

• Where to get help

Revision History

Table 1. Document revision history

Revision Date Description

A May 2021 Initial release of Storage Center 7.5.1

B July 2021 Updated the changed features in Storage Center 7.5.1

Product description

Storage Center 7.5.1 is a major release of the Storage Center operating system for SC9000, SC8000, SC7020F, SC7020,

SC5020F, SC5020, SC4020, SCv3000 Series, and SCv2000 Series storage systems. This release of Storage Center includes

several new features and enhancements for the supported storage systems.

Licensed Features

The licensed features that are available for a storage system depend on the storage system model.

Table 2. SC9000 Licensed Features

Licenses or Bundles Licensed Features

Core Software Bundle

● Data Reduction (Compression and Deduplication)

● Dell Storage Manager

● Dynamic Capacity

● Dynamic Controllers

● Live Migrate

● Local Data Protection

○ Data Instant Replay (Snapshots)

○ Manual Replay (Snapshots)

Summary of content (15 pages)

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Document Number: 680-021-023 Rev. B July 2021 Storage Center 7.5.1 Release Notes This document describes the new features and changes in this release of Storage Center. Current Release Version: 7.5.1 Release Type: Major (MA) Topics: • • • • • • • • • • Revision History Product description New features Changed features Resolved issues Known issues Limitations Environmental and system requirements Installation and upgrade considerations Where to get help Revision History Table 1.
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Table 2.
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Table 4. SC7020F and SC5020F Features and Licenses Licenses or Bundles Licensed Features ● ● ● ● ● ● ● ● ○ Manual Replay (Snapshots) Multi-VLAN Tagging Remote Instant Replay (Replication), including Cross-Platform Replication Replay Manager SED FIPS Secure Data Storage Manager Chargeback Virtual Ports Volume QoS vVols Table 5.
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Table 6.
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Table 8. SCv2000 Series Features and Licenses (continued) Licenses or Bundles Licensed Features ● Local Data Protection ○ Data Instant Replay (Snapshots) ○ Manual Replay (Snapshots) ● Remote Data Protection (Asynchronous replication only) New features The following features have been added in this release: Table 9. New features in Storage Center 7.5.1 Feature Feature Description Custom port for Syslog server Added the ability to specify a custom port for sending Storage Center logs to a syslog server.
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Resolved issues The following high severity issues are resolved in this release: Table 11. Issues resolved in Storage Center 7.5.1 Issue Functional area Description SCOS-61427 Alerts, Logs, and Reports Storage Center might generate alerts about pagepools entering conservation mode despite plenty of free space on the disks.
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Table 11. Issues resolved in Storage Center 7.5.1 (continued) Issue Functional area Description SCOS-60106 Hardware Improved debugging when an SC200 or SC220 expansion enclosure might boot into split after replacing the midplane in the enclosure. Improves debugging when an SC280 expansion enclosure might report that the enclosure temperature is lower than critical threshold even when enclosure is at a normal temperature.
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Table 11. Issues resolved in Storage Center 7.5.1 (continued) Issue Functional area Description SCOS-60805 Storage Management Distributed Spare Optimizer might fail to run if it is enabled on a storage system during a Storage Center update. SCOS-60788 Storage Management During a system restripe cycle, Storage Center might encounter a loop that selects a pagepool device to prune as excess, prunes the device, and then recreates the device after it is pruned.
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Table 11. Issues resolved in Storage Center 7.5.1 (continued) Issue Functional area Description SCOS-61101 Vendor If a Veeam backup job fails, but the failed backup job is successful when it is retried, Veeam might create a snapshot without an expiration date on the Storage Center. Known issues The following high severity issues remain unresolved in this release: Table 12. Known issues in Storage Center 7.5.
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Table 12. Known issues in Storage Center 7.5.1 (continued) Issue Functional area Description Workaround/Resolution condition where one of the Windows hosts is isolated from both its peer and its quorum witness. SCOS-17981 Live Volume and Replication Server mappings may not be removed completely when a server is removed from a cluster using Storage Manager before the server is removed from the cluster. Remove the server from the cluster through the operating system first.
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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 Update the QLogic firmware using CNAs in NIC mode. 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.
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Storage System Scalability Guidelines The following table lists the scalability guidelines for dual-controller storage systems: Table 14.
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Table 15.
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Table 17. Storage Center Scalability Guidelines for SCv2000 Series Storage Systems Storage Center Object Supported Maximum Drives ● SCv2000 – 168 drives total, 156 drives per SAS chain ● SCv2020 – 168 drive totals, 144 drives per SAS chain ● SCv2080 – 168 drives total, 84 drives per SAS chain Disk Folder 4 disk folders Server ● 100 servers (Total number of servers includes physical servers, virtual servers, and server clusters.
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Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.