DELL 1602345 EMC PowerStore Release Notes User Guide

DELL 1602345 EMC PowerStore Release Notes

Revision History

Product Description

The ground-breaking Dell EMC PowerStore achieves new levels of operational simplicity and agility, utilizing a container-based 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. Utilizing the proven capabilities of VMware ESXi, PowerStore X models with AppsON provide the unique ability to host data-intensive and storage applications directly on the PowerStore system with a storagebased virtualization environment, with the flexibility of seamless movement of applications between the storage system and external VMware servers. PowerStore T models provide organizations with all the benefits of an enterprise unified storage platform for block, file and vVol data, while enabling flexible growth with the intelligent scale-up AND scale-out capability of appliance clusters

Highlighted features include:

• All NVMeTM Platform:
  • Active-Active architecture
  • Container based PowerStore OS
  • Block, File, and vVols
  • NVMe Flash and Storage Class Memory (SCM) media support
  •  Front End Connectivity:
  • FC: 32 Gb NVMe-FC, 32/16/8Gb FC
  • Ethernet: 25/10 GbE, NVMe
• Enterprise Data Services & Data Reduction:
  • Inline dedupe and compression
  • Native async replication
  • Snapshots and space efficient thin clones
  • Advanced drive failure protection and sparing technology
• Simple and intelligent Management & Serviceability:
  • Embedded management
  • Built in AI for simple, autonomous storage administration and proactive health analytics
  • CloudIQ
  • VM Visibility
  • New Anytime Upgrade Program
  • Integration with automation framework
• Flexible & Granular Scalability:
  • Scale Up in single drive increments, up to 2.8 PBe per appliance
  • Scale Out to 4 appliances, up to 11.3 PBe per cluster
  • Scale Down
• VMware:
  • VMware vVols 2.0/VASA 3.0 support
  • New AppsOn hypervisor-based deployment, allowing to run Virtual Machines on the same appliance as storage without the need for an external server

PowerStore deployment models and configurations

1000T
3000T
5000T
7000T
9000T| Storage-centric deployments.

Both block (storage area networks (SAN)) and file (network attached storage (NAS)) services are supported with PowerStore T deployments.

Note : Hypervisor deployments are not supported on this model.

PowerStore X| 1000
3000X
5000X
7000X
9000X| Note : PowerStore X model cluster upgrades are not supported with this release.

Application and storage-centric deployments.

Block (SAN-only) storage services with a hypervisor layer installed on the system. The system software is deployed on the hypervisor, which enables deployment of virtual machines (VMs) and customer applications within the hardware.

Note : File (network attached storage (NAS)) services are not supported on this model.

Refer to the PowerStore product support pages (https://www.dell.com/support) for detailed user documentation.

Resolved Issues

The following issues have been resolved in this release.

removing a host from a host group or removing an initiator in a PowerStore 2.1.0.0 system, one or both nodes may experience a reboot.

Known Issues

Issue ID| Functional Area| Description| Workaround/Resolution
---|---|---|---
MDT-245165| Cluster – Creation| Each PowerStore appliance is pre- configured with an Administrator user (admin), which has a default factory password. The PowerStore Initial Configuration Wizard will require you to change this password. Once you have changed the admin user password, you must complete the cluster creation process using this appliance as the primary one. This appliance can no longer be configured as a non-primary appliance in a cluster, because only the primary appliance is permitted to have

the non-factory default password.

| Contact your service representative if you mistakenly change the password on an appliance and want it to be a non- primary appliance in a cluster.
MDT-367147| Connectivity – Hosts| When Windows clustered hosts are attached to a multi-appliance PowerStore cluster, if its LUNs are migrated from one appliance to another, do not migrate the LUNs back to the original appliance unless the hosts are rebooted prior to the

migration back.

| Avoid migrating LUNs back and forth between the appliances.
MDT-239230| Connectivity- Hosts| When a host becomes unavailable, mounting a Storage Container will fail.| Bring all hosts in the cluster back online and retry mounting the Storage Container.

Alternatively, mount the Storage Container manually only to available hosts using the vSphere UI.

MDT-139488| Connectivity – Hosts| Xcopy operations can impact host I/O performance.| None
MDT-273055| Connectivity – Hosts| A user can view internal host and volume mappings via GUI but cannot perform mapping/unmapping.| Mapping/unmapping actions can be performed via REST interface.
MDT-375772| Connectivity – Networks| Creating a cluster may fail when the internal communication (ICM) port fails on a single node.| Contact your service provider.
MDT-392751| Connectivity – Networks| The “PowerStore Hardware Information Guide for PowerStore 1000, 3000, 5000, 7000, and 9000”

and the “PowerStore Hardware Information Guide for PowerStore 500T” state that the Base Enclosure Embedded Module 4-port card, and the Base Enclosure I/O module types support 1GbE SFP to RJ45 connections. However, 1GbE SFP is not supported by the PowerStore

software.

| Contact your service provider if you require 1 GbE connectivity to your PowerStore systems.
MDT-348041| Connectivity- Networks| When reconfiguring the default Storage network for a PowerStore X cluster, the operation can fail due to an interference with the VVOL access by vSphere services that block the management actions performed by the reconfiguration procedure.|

1. Disable vCLS (vSphere Cluster Services) on the vSphere cluster.
2. Disable vSphere HA.
3. Unmount the PowerStore vVol datastore from the ESXi hosts.
4. Reconfigure the Storage networks to the correct settings.
5. Create the PowerStore vVol Datastore if missing.
6. Mount the datastore to the cluster hosts.
7. Enable vSphere HA.
8. Enable vCLS.
9. Wait 5-10 minutes before doing any other network reconfigurations.

MDT-272385| Connectivity- Networks| Large amounts of external IPv6 traffic exposed to ethernet ports can cause iSCSI performance degradation.| To avoid the problem, use separate VLANs for Storage networks and networks that contain a lot of non- storage related IPv6 traffic. Also, route management VLANs and other VLANs with large amounts of IPv6 traffic to dedicated storage ports.
MDT-284055| Connectivity- Networks| In certain network environment configurations, the system is unable to discover unconfigured appliances through the network and may

experience node reboots.

| Contact your service provider.
MDT-211358| Connectivity- Networks| PowerStore Discovery IP by Zeroconf technology stopped advertising.| Perform either one of the following actions to work around this issue: Either, wait a few minutes for the state of the system to change and try again. or

Reset Drive, Mezz or I/O Module if available and wait for few minutes and try again, then reboot the primary node.

MDT-361193| Connectivity- Networks| While attempting to reconfigure the PowerStore Management network while an ESXi host was in maintenance mode, reconfiguration of the Management network failed, the ESXi host deleted from vSphere, and the host could not be recovered to vSphere after rollback.| Reconfiguring the PowerStore Management network is not supported when ESXi hosts are in maintenance mode.
MDT-366353| Connectivity – Networks| In rare cases adding an appliance to a cluster fails with a “General error in networking vSphere integration service” error, when the appliance being added is only connected to two mezzanine ports and/or the link speed of the ports differs from link speed of

the existing appliances in the cluster.

| Provide all 4 mezz port connections with links speed equal to the existing appliance and repeat the add appliance procedure.
MDT-240072| Data Collection| Uploaded data collections can be duplicated on massive file transfers. In this case make sure to take the largest

of the duplicated data collections.

| None
MDT-261254| Data Protection| If PowerStore Manager times out while a user is managing the remote systems under the protection tab, the remote systems table may not clear the error after logging in again. It is required to restart PowerStore Manager to

manage the remote systems.

| Open a new browser session and start the PowerStore Manager again to resolve this issue.
MDT-322339| Data Protection| When moving the replication tag from one IP Port to another, existing replication session could enter ‘System Paused’ state and result in an alert.| Follow the alert’s related corrective actions and run the ‘verify’ operation on the associated configured remote systems.
MDT-316424| Data Protection| Customer network environment may drop jumbo frames or block them from being transmitted over the network. As a result, the replication session status can change to System Paused during the replication session synchronization.| Decrease cluster MTU size to 1500.

In PowerStore 2.0 and higher, there is an option to configure specific ports for replication and set a dedicated VLAN with a different MTU.

It is recommended to separate the replication ports and configure the MTU to 1500 to allow flawless replication and keep MTU 9000 for the local area network only

MDT-312619| Data Protection| When replication IPs change, they are not automatically detected. As a result, a replication session’s status changes to ‘System Paused’.| Run ‘Remote System Verify’ operation to update the connectivity matrix. The next synchronization cycle will update the

replication IP addresses.

MDT-309462| Data Protection| When the user pauses a replication session on the destination cluster during NDU of the source cluster, a post-NDU state may occur, where the source replication session is in System Paused state and the destination

replication session is in Paused state.

| Pause the replication session on the source cluster (where the session is in System Paused state) and then resume the replication session.
MDT-299182| Data Protection| In a large configuration, pausing or deleting a replication session may take longer when the session is queued for synchronization.| None
MDT-220994| Data Protection| The replication session may not be deleted once a Protection Policy is unassigned from the storage resource.| To delete the replication session, do the following:

1. If Protection Policy is not assigned to the storage resource, reassign the same Protection Policy that was previously assigned to the storage resource.
2. Unassign the Protection Policy from the storage resource.

MDT-133408| Data Protection| When a volume group is created with member volumes and is protected by a protection policy that includes a replication rule, the volume group members may be delayed in being replicated to the remote system until the next RPO cycle. The default replication rule RPO value in PowerStore Manager is 1 hour, but it

can range from 5 minutes to 24 hours.

| If the remote system connection is healthy, the member volumes should automatically be replicated to the destination during the next RPO cycle. To update the member volumes on the destination before the next RPO cycle, navigate to Protection-> Replication, select the volume group session and perform a “Synchronize” operation.
MDT-242915| Data Protection| When replication destination cluster loses connectivity to source cluster, the system issues specific alerts/events, but the state of the replication session may still display Operating Normally status. Admins should check the alerts issued by the remote system and resolve the

connectivity issues to recover replication sessions.

| None
MDT-359082| Data Protection| The replication rule filter on the Protection Policies page does not function properly.| Use the sorting option on the Replication Rule column to locate a specific remote protection policy.
MDT-333618| Discovery| In certain network environment configurations, the system is unable to discover unconfigured appliances through the network when using static

IP addresses for appliance discovery.

| The initial discovery of PowerStore appliances will work with either the native Zeroconf-capable browser such as Bonjour or through the PowerStore

Discovery Tool.

MDT-368465| Hardware| On PowerStore 500T systems, when one node reboots, there is short period of data unavailability instead of a node

failover.

| None
MDT-374381| Hardware| When the primary node (Node A) has been removed from a PowerStore T model appliance, if the secondary node (Node B) reboots while Node A is out, Node B enters service mode, and the appliance must be manually recovered.|

• Depending on your requirement, you will have one of two options:
• Re-insert Node A back into the appliance, and take Node B out of maintenance mode.
• If recovering Node B, while Node A is still removed is required, then you must contact your service provider for assistance.

MDT-289908| Hardware| A newly inserted disk remains locked, and the rebuild of the PowerStore Model appliance times out.| Restart the node.
MDT-286236| Hardware| In rare cases, a node that has been powered off does not remain powered off.| Power off the node again.
MDT-117061| Hardware| When beginning cluster creation, the hardware status is incorrectly indicated

as not configured for clustering.

| Wait a few minutes and try again.
MDT-190232| Hardware| The svc_node shutdown command may reboot the node instead of powering it

off.

| Run the svc_node shutdown command again when the node has finished

rebooting.

MDT-263147| Hardware| If you add an appliance to a cluster when another appliance in the cluster is

powered off, the add appliance operation will fail.

| None
MDT-260313| Hardware| One or both nodes may not automatically power back on after a short AC power outage of less than 50 seconds. The appliance should power on properly after the first AC failure, but it is vulnerable to subsequent short AC failures.| If only a single node does not power back up PowerStore Manager will display a major alert for the impacted BaseEnclosure- Node – with the following message “Node has been physically removed or shut down” (Event code 0x00304404). Log into the system service account and use the “svc_node power_on” command to power up the peer node.

If neither node of the appliance is accessible after 30 minutes following a short AC power failure the appliance will need to be reset. To reset the appliance, remove the AC power for at least 120 seconds and then restore AC power and both nodes should power up and return to service within 30 minutes.

MDT-365679| Hardware| If the PowerStore appliance is initialized with a drive that is not recognized by PowerStoreOS, the appliance will not boot up.| Remove the bad drive.
MDT-362662| Hardware| A node may remain powered down

after a reboot and require another reboot.

| Reboot the halted node again.
MDT-362070| Hardware| After a dual node reboot, if one node comes up 120 seconds before the other node, the first node may reboot again to start auto- recovery.| None
MDT-367464| Import| Agentless import failed 3 minutes after it started.| Contact your service provider.
MDT-137439| Import| If an import from a Unity or VNX2 system to PowerStore is cancelled by the user or fails for some reason, it is possible that subsequent attempts to import the volume will also fail.| Remove the Unity or VNX2 as a remote system and then add it again. This action will clear the issue and allow the import to proceed.
MDT-252560| Import| Import of a volume failed with the error “Import failed because the mirror service could not be enabled on the Destination volume”.| Run the verify operation on the remote system to recover data connections.

Once the remote system verify operation

completes successfully, try the import operation again.

MDT-258429| Import| If multiple storage networks are configured on PowerStore and each of these networks has a dedicated Global Storage Discovery IP Address (GSDIP), non-disruptive import fails with Error

Code 0xE0301002002C.

| See Dell knowledge base article 000184766: PowerStore: Non-disruptive Import failure when more than one Global Storage Discovery IP Address is configured
MDT-285903| Internal Migration| The migration failed due to a High Availability (HA) event and a system

snapshot remains on the migration source object.

| Contact your service provider to clean up the remaining snapshot.
MDT-140927| Internal Migration| After a volume is migrated, there may be a dip in capacity and performance metrics reporting for that volume at

the end of the migration operation.

| None
MDT-273051| Internal Migration| If all objects are selected, or more objects are selected than the destination has the capacity for, a failure message may appear when attempting to migrate those objects

from one appliance to another using the assisted migration workflow.

| Select objects individually and migrate volumes by using the manual migration workflow instead of using the assisted migration workflow.
MDT-359565| Internal Migration| The PowerStore Manager (GUI) does not prevent a user from using the Delete button during a migration cutover, however, deletion during cutover is not supported and the migration session is not deleted. The delete operation will result in a backend error.| None
MDT-239624| Internal Migration| When a VM is being deployed from a VM template, vSphere uses the clone operation to provision vVols of the newly created VM. PowerStore internally translates it into space- efficient clones (the same technique used for vVol snapshots). As soon as a Data Path (DP) family size limit exists, a base vVol cannot have more than a certain number (1000) of derivatives (snapshots, space-efficient clones).

This causes the following limitations:

– Cloning from a VM template fails if a base vVol of the VM template has too many derivatives (snapshots or clones, or both) already created (1000).

– When the maximum number of family members limit is reached, vVol migration cannot occur as it needs to create an internal vVol snapshot which fails.

– All vVols are placed to the same appliance in a multi-appliance cluster, so the load is not balanced between

appliances.

| Use several VM templates created from the same OVF template so that each VM template is used for a reasonable number of VM clones to avoid hitting the DP family limit. This action allows vVols to be distributed between appliances in a multi- appliance cluster for load balancing.
MDT-418998| Install or Upgrade| The Quick Start Guide states that there are two Mini-SAS HD cables included with the PowerStore Base Enclosure. As of May 13, 2022, the Mini-SAS HD cables are no longer provided with the PowerStore Base

Enclosure.

| The expansion enclosure cables are provided with the 25×2.5 SAS expansion enclosure.
MDT-378262| Install or Upgrade| During a non-disruptive upgrade (NDU) of a cluster containing multiple appliances, upgrade to a secondary appliance fails, and rolls back. The reason for failure is addressed, however the option to retry NDU in the PowerStore Manager (GUI) is greyed out and the user is unable to retry the

upgrade.

| Contact your service provider.
MDT-366264| Install or Upgrade| After a failed upgrade results in data unavailability, in some instances, the

PowerStore Manager (GUI) cannot be reached.

| Contact your service provider.
MDT-346158| Install or Upgrade| If a drive failure occurs and the data path unexpectedly restarts during a failed PowerStore software upgrade, the DRE rebuild feature might become disabled, which prevents the PowerStore software upgrade from

being retried.

| Contact your service provider for assistance with reenabling the DRE rebuild feature on the PowerStore cluster.
MDT-337169| Install or Upgrade| NAS services might fail to start during the initial installation and configuration of PowerStore appliances or during a PowerStore software upgrade.| If NAS services fail to start during the initial installation and configuration of PowerStore appliances, try to install NAS again as described in step 4 of the Dell Knowledge Base 000130232: “PowerStore Manager displays ‘NAS Installation has failed’ when trying to configure PowerStore appliance(s).”

If NAS services fail to start during a PowerStore software upgrade, contact your service provider for assistance.

MDT-164726| Install or Upgrade| If the Pre-Upgrade Health Check fails during an upgrade from PowerStore OS 1.0 to PowerStore OS 1.0.1 or later, clicking the failed operation link under Recent activities might result in an error because of a localization issue with the event message.| None
MDT-219735| Install or Upgrade| If a PowerStore 1.0.3.0.5.007 software upgrade package is uploaded to a PowerStore T model cluster with a single appliance running PowerStore OS version 1.0.1.0.5.002 or 1.0.1.0.5.003, then an appliance running PowerStore OS version 1.0.2.0.5.003 is added to the cluster and another PowerStore 1.0.3.0.5.007 software upgrade package is uploaded to the cluster, performing an upgrade will fail before the upgrade process completes on the primary appliance and the second appliance will not be upgraded.| Contact your service provider.
MDT-156905| Install or Upgrade| After a software update, the NAS servers may not fail back automatically to the original node.| Manually fail back the NAS servers from PowerStore Manager.
MDT-135505| Install or Upgrade| Drive firmware updates may not get applied to a single drive or a few drives within the appliance. This may occur because of a timing issue between the

two nodes in the appliance.

| Download and install the drive firmware again to ensure it gets updated on the drives that were missed in the previous attempt.
MDT-170949| Install or Upgrade| Running PowerPath 7.1 and earlier on a Linux host causes an I/O error during the software upgrade of PowerStor OS 1.0 to PowerStore OS 1.0.1.| Apply the next/upcoming PowerPath 7.1 patch, and then run the PowerStore software upgrade to avoid the I/O error.
MDT-265301| Install or Upgrade| When performing a software upgrade on a PowerStore T model appliance running in Unified mode, the inter-node iSCSI connection might fail when one node is rebooted, which can cause the NAS to panic.| Allow NAS-HA to take care of uninterrupted NAS operations during a software upgrade. If data unavailability occurs after the software upgrade is complete, contact your service provider.
MDT-362834| Monitoring| After deleting large capacity volumes, a difference between free space and

actual free space may be displayed.

| None
MDT-354309| Monitoring| When more than 3500 storage objects are selected and are being assessed for migration, the PowerStore Manager connection to the PowerStore appliance may be lost.| Instead of selecting all the storage objects for migration at once, split the quantity of storage objects into more than one migration session. For example, select 1800 storage objects for the first migration and then select all or a portion of the remaining storage objects for the

next migration, and so on.

MDT-55667| Monitoring| Storage container capacity metrics are not available until I/O operations have begun.| Look at the capacity metrics again after I/O operations on the storage container

have been performed.

MDT-256340| Monitoring| Config capture may fail to calculate

deltas on very large systems under very heavy load.

| None
MDT-249810| Monitoring| If the total system capacity is below 10TB, free page tables are not replenished as this would consume space that might not be required and waste free pages. The lack of free pages in the table causes a performance impact for writes. For

better performance, more capacity should be added.

| Make sure that the system capacity is higher than 10TB.
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.

| None
MDT-359644| Notifications and Alerts| Sending test SMTP messages can block the connection between

PowerStore Manager and PowerStore if the SMTP server is not accessible.

| Ensure that the selected SMTP server is valid and supports the selected port.
MDT-359217| PowerStore Manager(GUI)| In the PowerStore T Initial Configuration Wizard (ICW), on the vCenter Information (Optional) screen, the hover text for the Your vCenter Information info icon should read:

“vCenter account information with administrate role and privileges

recommended.” as it is recommended, not required.

| None
MDT-294859| PowerStore Manager(GUI)| In PowerStore Manager, the Express Service Code field is sometimes missing from the Hardware >

Appliances page.

| Use the Service Tag field.
MDT-245640| PowerStore Manager (GUI)| When rebooting or powering off a node from PowerStore Manager, the system may not display any acknowledgement that the process has begun. The Reboot or Power Down button may still appear clickable. Despite the lack of acknowledgment, the operation will be triggered successfully after a single

click of the button.

| None
MDT-118394| PowerStore Manager (GUI)| Uploading an upgrade package that is

larger than 4 GB with Microsoft Edge or Internet Explorer fails.

| Try again with a different browser.
MDT-163489| PowerStore Manager (GUI)| Once a node is replaced, the new node

hardware information does not appear in PowerStore Manager immediately.

| After replacing a node, wait up to 30 minutes for the PowerStore Manager screen to reflect the update.
MDT-261523| PowerStore Manager(GUI)| If Mozilla Firefox is used to upgrade a PowerStore cluster to PowerStore 2.0, a browser cache issue might occur that causes the names of some buttons and labels to be displayed as object names instead of the correct button or label names.| Use a different browser such as Google Chrome or Microsoft Edge. Or, clear the browser cache in Firefox. For instructions, see the KB article “How to clear the Firefox cache” on the Mozilla Firefox support site.
MDT-362809| PowerStore Manager (GUI)| Some text editors may append line end (\n) at the end of a certificate when opening the certificate file. The certificate is regarded as an invalid certificate due to the trailing space of the certificate.| Use an editor that does not append line end (\n) at the end. For example, using Notepad works fine, but using Notepad++ to open a certificate file would require manual removal of the line end.
MDT-130894| PowerStore REST API| Two invalid resource_types, FEPort and Initiator, may be returned by the event and alert APIs.| Events or alerts with resource_type FEPort or Initiator should ignore the resource_type values.

External OpenAPI clients must disable validation for the event and alert APIs

with resource_types of FEPort or Initiator.

MDT-266683| PowerStore REST API| You cannot issue Swagger UI commands with Operator, Storage Administrator, and VM Administrator roles. You must log in with the higher- level Administrator role if you want to complete tasks such as fetching or

reading data from PowerStore.

| Customers can login in as administrator to use the swagger panel in PowerStore Manager.
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 Intel Optane SCM drive, for example, 7 minutes for 375 GB, 15 minutes for 750 GB, and 27 minutes for 1.5TB. If you pull a drive out before it is unlocked, the drive will appear as disconnected. However, the drive will not be automatically removed from the

appliance.

| If you intend to use the drive, re-insert the drive and let the DARE unlock complete. If you intend to stop using the drive, re-insert the drive, wait for enough time (time to unlock plus about 1 minute for other overhead), and then remove the drive. The drive will then become disconnected and automatically removed from the system.
MDT-213516| Security| DNS is not supported for LDAP.| Use the IP address instead of the FQDN.
MDT-346149| Storage – Block| During system metadata consolidation a rare condition may occur which can cause data services on a single node to restart. This will interrupt IO servicing on the node for ~2min until the service is started. IO to the other node is unaffected.| None
MDT-284475| Storage – Block| After mapping a LUN or creating a VM, the LUN or VM appears correctly, but it is inaccessible to hosts.| Unmap the non-working LUN and map it again. For VMs, delete the non-working VM and recreate it.
MDT-242368| Storage – Block| Unable to delete a volume group after deleting a replication session, due to undeleted replication session system snapshots.| Contact your service provider for the procedure to delete the snapshots.
MDT-357280| Storage – Block| Unmapping a volume during a process or node failure may lead to an additional process restart of the system manager (the system will auto- recover).| None
MDT-377036| Storage – File| When the appliance that has been designated as the primary appliance in a PowerStore T cluster is not installed with File services (Unified deployment), metrics for File services are not collected.| Contact your service provider.
MDT-314995| Storage – File| In a Unified appliance cluster, after the system exits from an out of space scenario, some of the NAS Servers will not return to Read-Write mode when the control path restarts.| Contact your service provider.
MDT-121966| Storage – File| The File system deleted alert is displayed as an active alert in PowerStore T even after the file

system has been successfully deleted.

| Review the alert details, to confirm the alert is for a file system that has been deleted. Once confirmed, ignore or

acknowledge the pending alert.

MDT-121784| Storage – File| After a NAS server is successfully deleted, the alerts against the deleted child objects of the NAS server such as DNS servers, file systems, NFS exports, or SMB shares, are not cleared.| Review the alert details, to confirm the alert is for a child object of a successfully deleted NAS server. Once confirmed, ignore or acknowledge the pending alert.
MDT-139095| Storage – File| While trying to create or delete a snapshot the following error message was returned: “Addition [or deletion] of NFS Export failed due to [The path [path_name] was not found on the system and cannot be exported.]”| Wait for some time and try the action again.
MDT-147688| Storage – File| SMB clients cannot connect to a NAS server when the NAS server name is more than 15 characters. This is because by default the SMB server computer name takes the NAS server name.| Set the NAS Server name with 15 characters or less or set the SMB server’s computer name with 15 characters or less. To modify the computer name, select all the characters in PowerStore Manager, and type the new name.
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 unmount the export on the client.
MDT-142317| Storage – File| After configuring and running I/O operations to SMB shares and NFS exports events such as an appliance or NAS server reboot, or a file system unmount or remount may cause some negative values to appear in the saved file system performance statistics

exported from PowerStore Manager (GUI).

| None
MDT-118544| Storage – File| After a request is sent from the REST API with an incorrect GUID, the error message returned displays the invalid UID:
00000000-0000-0000-0000 000000000000.| Ignore the UID in the error message and retry the request with the correct GUID.
MDT-154600| Storage – File| The following alert is sent during upgrade “NAS server [server name] fault tolerance is degraded due to NAS upgrade procedure on a peer NAS cluster node.” However, once upgrade is complete the alert is not always

automatically cleared.

| After upgrade completes, acknowledge the alert to clear it.
MDT 116676| Storage – File| The “NAS node is down,” major alert may be seen after changing the Cluster MTU value. Changing the MTU value may cause degradation or disruption in NAS (file) services.| Wait for the alert to clear before performing any further NAS (File) operations.
MDT-137232| Storage – File| Under rare circumstances, NAS services could be disrupted, if the appliance is close to reaching the maximum used data capacity.| Take one of the following actions on the appliance on which the NAS service is installed: add capacity to the appliance (for example, add drives or expansion enclosures), increase free capacity on the system (for example, deleting unused snapshots, volumes) , or migrate data off

the system.

MDT-210085| Storage – File| Unable to add a Tree Quota to a File system because there the description is too large (more than 512 bytes).| Add a shorter description to the Tree Quota.
MDT-195652| Storage – File| Unable to remove the description from an NFS Export.| To change the description, overwrite the current description with a blank character space. Save the NFS Export

with no description, then go back and update the description again.

MDT-192427| Storage – File| Occasionally, an automated script used to delete a NAS server fails because it cannot connect to the PowerStore

REST API server.

| None
MDT-252443| Storage – File| An error occurred when setting a user quota on an SMB share when the user name was created with the SID (security identifier).| Use either one of the following methods to work around this issue:

Using the SMB name instead of the Windows SID.

Performing a Client connection to the SMB server.

MDT-222985| Storage – File| When creating, or removing an NFS server, from a NAS Server that has been named with over 15 characters, the request to add or remove the NFS Server from the NAS server times out.| Ensure that the NAS server name is less than 15 characters.
MDT-345741| Support| The svc_dc upload script fails with the

error “No path was found for the data collection.”

| Wait five minutes and retry the svc_dc upload script.
MDT-289213| SupportAssist| While attempting to upload data to SupportAssist, a node failover or node reboot occurred. Because of the node failover, or reboot it was unclear if the

data successfully uploaded to SupportAssist.

| Upload the data to SupportAssist again once the failover, or reboot has completed.
MDT-148608| SupportAssist| Attempts to upload Support Materials fail. SupportAssist is unable to upload files when there is insufficient free

space in the system partition.

| Delete old Data Collections to increase the available space in the file system so that SupportAssist can make a backup

copy of the file for upload.

MDT-153771| SupportAssist| Enabling either Direct connect with remote access or Gateway connect with remote access may fail.| If enabling either higher tier type, Direct connect with remote access or Gateway connect with remote access fails, wait for the backend issue to clear, then do the following:

1.   Enable the related lower tier type, Direct connect without remote access or Gateway connect without remote access.

2.    Disable the related lower tier type.

3.    Re-enable the higher tier type, Direct connect with remote access or Gateway connect with remote access type.

If the issue persists, contact your service provider.

MDT-256673| SupportAssist| Cannot enable the SRS gateway on an appliance. Version 3.48 of the SRS gateway has an issue with connectivity

from some PowerStore systems.

| Use a different version of the SRS gateway.
MDT-377648| Virtualization| Due to VMware bug DCPN 00091955, vVol migration sessions may sometimes go into a system_paused state.| In VMware, perform a compute vMotion, or power off and power on the virtual machine to force the ESXi host to bind to the vVols. Once you have completed

those steps, the migration sessions can be resumed.

MDT-336285| Virtualization| Migrating NSX-T from NSX-T managed Virtual Distributed Switches to vSphere Distributed Switches is not currently supported for PowerStore X cluster environments enabled with VMware NSX-T Data Center.| Do not migrate NSX-T from dedicated NSX-T-managed Virtual Distributed Switches until the PowerStore X cluster is upgraded to a software version that supports vSphere Distributed Switches for PowerStore X cluster environments enabled with VMware NSX-T Data Center.
MDT-109970| Virtualization| Unable to create a vVol storage container in PowerStore, after having just deleted a vVol datastore with the same name from vSphere.| Either create the vVol storage container in PowerStore using a different name or allow some more time before creating the new vVol storage container in PowerStore with the same name that was used in vSphere.
MDT-111956| Virtualization| In rare case, the automated mounting of a user- created Power Store vVol storage container on an ESXi host could fail with the following error message displayed in vCenter “Timed- out waiting to get datastore information from host”.| Manually mount the vVol storage container from the VMware vSphere GUI or CLI.
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. This may result in the vSphere High Availability (HA) to trigger VM migrations to other

hosts in the cluster.

| In vCenter server, increase the heartbeat timeout interval to 120 seconds. See VMware Knowledge Base article 1005757: “ESXi host disconnects intermittently from vCenter Server.”

In case some VMs appear as invalid or orphaned as a result of the ESXi host disconnect, see the VMware Knowledge Base article 1003742: “Virtual machines appear as invalid or orphaned in vCenter Server.” for instructions on recovering the VMs.

MDT-146763| Virtualization| During a vMotion process, some vVols are deleted. If the VASA provider becomes unavailable during a storage vMotion operation, the deletion of the vVols fails. These vVols are left

orphaned and may appear as duplicates.

| Delete the orphaned vVols using PowerStore CLI or REST API.
MDT-151804| Virtualization| In a PowerStore cluster with multiple VMFS datastores that are mapped to multiple hosts, a performance impact might occur if several VMs are powered off or powered on simultaneously.| Refer to the Dell knowledge base article 000320477: Best practices for VMFS datastores – for Bootstorm or Failover with VMware SRM.
MDT-152993| Virtualization| A periodic, automatic cleanup process on vSphere that is performed randomly (every few days) deletes empty config vVols (directories). However, this process also deletes the ISOs folder that is pre- created by PowerStore in case you have not placed any ISO images into the folder.| Recreate the ISOs folder using the following Power Store CLI command: pstcli -service storage container -id create directory -size 100G -name ISOs By default Power Store creates a 500 GB folder, but you can specify another size if

necessary.

MDT-119414| Virtualization| Deploying a VM fails, and checking the vvold.log vCenter log file reveals the following messages:

2019-11-15T05:24:35.161Z info

vvold[2112740] [Originator@6876 sub=Default] VVolAbandonedObjectScan::ProcessNa mespace examining namespace

/vmfs/volumes// and 2019-11-15T05:24:35.318Z warning

vvold[2112740] [Originator@6876 sub=Libs] 2112740:VVOLLIB :

VVolLib_OpenObjectTrackingFile:11348

: VVolLib _ Open Object Tracking File: Failed to open object tracking file /vmfs/volumes// /.vvolObjList with error 6
where is the UUID of the storage container and