5Revision: A00 Release Date: September 2020 Dell EMC PowerStore Release Notes Release Version: 1.0.2.0.5.003 Release Type: Service (SR) Contents Revision History ..................................................................................................................................................................1 Product Description ............................................................................................................................................................
Product Description The ground-breaking Dell EMC PowerStore achieves new levels of operational simplicity and agility, utilizing a containerbased architecture, advanced storage technologies, and intelligent automation to unlock the power of your data. Based on a scale-out architecture and hardware-accelerated advanced data reduction, PowerStore is designed to deliver enhanced resource utilization and performance that keeps pace with application and system growth.
PowerStore deployment models and configurations Deployment Model Model numbers Support Configurations PowerStore T 1000T Storage-centric deployments. 3000T Both block (storage area networks (SAN)) and file (network attached storage (NAS)) services are supported with PowerStore T deployments. 5000T Note: Hypervisor deployments are not supported on this model. 7000T 9000T PowerStore X 1000X Application and storage-centric deployments.
Changed Features The following functionality has changed. Functional Area Feature Description Summary of Benefits Networking Starting from PowerStoreOS version 1.0.2 or later, Unified PowerStore T model appliances will route internal networking communication within the appliance rather than the Top-of-Rack (ToR) switch. The Unified PowerStore T model Cluster will be successfully created.
Known Issues The following high severity issues are reported in this release. For a list of the minor issues, see Knowledge Base article SLN320772 PowerStore Release Notes – Minor issues at: https://www.dell.com/support/article/SLN320772. Issue ID Functional Area Description Workaround/Resolution MDT-152854 Connectivity Hosts Running an unmap operation might cause a host I/O latency impact of more than 15%.
Issue ID Functional Area Description Workaround/Resolution MDT-148947 Data Protection From a protection perspective, a snapshot of a volume group is a single-point-in-time copy of the volume group member volumes. Membership changes to the volume group prevent snapshot recovery operations, such as restore or refresh, unless the volume group is returned to the same membership state at the time the snapshot was created.
Issue ID Functional Area Description Workaround/Resolution MDT-168710 Internal Migration In a PowerStore T cluster with more than one appliance, internal migration of Volumes or Volume Groups used by Microsoft Windows Failover Cluster may result in hosts losing access to storage. Internal migration of Volumes or Volume Groups used by Microsoft Windows Failover cluster must be done with no active I/O during cutover. I/O can be quiesced by powering down the host or unmapping the Volumes.
Issue ID Functional Area Description Workaround/Resolution MDT-148659 Install or Upgrade If the peer node is inaccessible for too long, the software upgrade can fail. Retry the software upgrade. MDT-146346 Notifications and Alerts Some hardware alert states may persist for a short time after the health of the object has been restored. The alert states eventually resolve with the correct state.
Issue ID Functional Area Description Workaround/Resolution MDT-153026 Security When a drive is inserted into an appliance, it will take time for D@RE to unlock it. Most drives take a few minutes. However, it takes more time for a ColdStream drive to unlock. The time is proportional to the size of the ColdStream drive, for example, 7 minutes for 375 G, 15 minutes for 750 G, and 27 minutes for 1.5T. If you pull a drive out before it is unlocked, the drive will appear as disconnected.
Issue ID Functional Area Description Workaround/Resolution MDT-110930 Storage - File Access to a snapshot is denied when there is only one snapshot created on the file system, and access to the snapshot is attempted at the time the snapshot is refreshing. Mount and umount the export on the client.
Issue ID Functional Area Description Workaround/Resolution MDT-151302 Storage - File If the network connection is unstable, the DNS may incorrectly be reported as offline. After restarting the NAS server, the health status of DNS is not cleared if the DNS is healthy. Refer to the Dell knowledge base article SLN320669. Contact your service provider, if you need assistance. MDT-148608 SupportAssist Attempts to upload Support Materials fail.
Issue ID Functional Area Description Workaround/Resolution MDT-156507 Virtualization In high scale VMware vSphere environments, where the ESXi hosts and vCenter server are highly loaded (for example, simultaneous powering on a large number of VMs), heartbeat messages sent by the ESXi hosts to the vCenter server may not be delivered in time. When the heartbeat is not received in the 60-second timeout interval, the host is considered as not responding, and the host is marked as disconnected.
Issue ID Functional Area Description Workaround/Resolution MDT-119414 Virtualization Deploying a VM fails, and checking the vvold.log vCenter log file reveals the following messages: Try to deploy the VM again. For more information, see the Dell knowledge base article SLN320647. 2019-11-15T05:24:35.161Z info vvold[2112740] [Originator@6876 sub=Default] VVolAbandonedObjectScan::ProcessName space examining namespace /vmfs/volumes// and 2019-11-15T05:24:35.
Limitations The following limitations exist in this release. PowerStore T and PowerStore X model limitations The following limitations exist in PowerStore T and PowerStore X deployment models. Functional Area Description Importing external storage to PowerStore A maximum of 16 import sessions is supported in the Ready-For-Cutover state during an import. In some cases, when several dozen import operations are run back-to-back, intermittent failures of alternate import sessions may occur.
Functional Area Description Support for Virtual Machines Virtual Machines (VMs) running on PowerStore X internal nodes only supports Virtual Volumes (vVols). Virtual Machine File System (VMFS) is not supported for internally running VMs, but is supported when using PowerStore X with external ESX servers attached via Fibre Channel or iSCSI. Refer to the PowerStore product support pages (https://www.dell.com/support) for detailed user documentation.
Where to Get Help Dell Technologies maintains support pages for all products at https://www.dell.com/support. The product support pages provide important product information such as product and user documentation, knowledge base articles, drivers and other software installation packages downloads, advisories, knowledge base articles, and more. A valid support contract and registration is required to access all information available on the product support sites.
