Docu92278 PowerPath for Windows 6.4 and Minor Releases Release Notes

Release Notes

Dell EMC PowerPath and PowerPath/VE Family for Windows Version 6.4 and minor releases

Release Notes 302-005-452 01 January 2019

These release notes contain supplemental supple mental information about PowerPath. Topics include: l l l l l l l l l l l l

Revision history history............... ....................................... ........................ ............................ ............................. ...... 2 Product description description...................... .................................................. ............................ ............................ .................. 2 New features features and changes ......................................................................................3 ......................................................................................3 Fixed problems problems ..................................................... ........................................................................................................4 ...................................................4 Known problems problems and limitations limit ations..............................................................................5 ..............................................................................5 Technical notes notes......................................... .................................................................... ........................... ............................ ..... 13 Environment Environme nt and system requirements requirements........ ............... ............... ............... ............... ................ ............... ............... ............ .... 15 PowerPath PowerPat h packages .............................................................................................19 .............................................................................................19 Installation Installatio n and upgrade.......... upgrade ........................................................................................20 ..............................................................................20 Documentation Document ation................. ......................................................................................................21 .....................................................................................21 Troubleshooting and getting help ..........................................................................22 Reporting a problem .......................... ............................. ............................ .......... 22

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Release Notes

Revision history The following table presents the revision history of this document.

Revision history

Revision

Date

Description

01

January 2019

First release of the product

Product description This section describes the PowerPath family of products. The PowerPath family of products include: PowerPath multipathing, Migration Enabler, and Serviceability feature of PowerPath Management Appliance (previously known as PowerPath Configuration Checker). The PowerPath multipathing license includes Migration Enabler functionality for all Migration Enabler technology types. Migration Enabler, and Serviceability feature of PowerPath Management Appliance does not require a separate product license. If you have questions about your license, contact your Customer Support Representative. Note

These release notes covers the PowerPath major, minor, and service pack releases. For patch release details refer to the patch Readme available on Dell EMC Online Support.. Support Throughout this document, wherever PowerPath for Windows is mentioned, it refers to PowerPath and PowerPath/VE for Windows Hyper-V, u nless otherwise noted.

PowerPath multipathing PowerPath is a server-resident software solution designed to enhance performance and application availability. PowerPath: l

l

l

combines automatic load balancing, path failover, and multiple path I/O capabilities into one integrated package. enhances application availability by providing load balancing, automatic path failover, and recovery functionality. supports servers, including cluster servers, connected to Dell EMC and third-party arrays.

PowerPath for Windows is a path management application specifically designed to











Release Notes

PowerPath Migration Enabler PowerPath Migration Enabler is a host-based migration tool that allows you to migrate data between supported storage systems. Migration Enabler uses the PowerPath filter driver, in conjunction with an underlying technology, to provide nondisruptive or minimally disruptive data migrations. The underlying technologies for Migration Enabler are Open Replicator for Symmetrix (OR) and HostCopy (host-based copy). The PowerPath Migration Enabler User Guide provides additional information.

New features and changes This section describes new PowerPath features by version. Earlier versions of PowerPath may be qualified with the following product versions. The E-Lab Interoperability Navigator provides complete, up-to-date qualification information.

New features This section describes new features and functionality.

PowerPath 6.4 This section describes new features in PowerPath

PowerMaxOS support Support for PowerMax OS version 5978 SR includes FX Licensing. Refer ESM for information on latest code availability.

Windows Server 2019 support PowerPath 6.4 supports Windows Server 2019 edition.

Dell SC Series array support Support for Dell SC arrays running SCOS 7.3.2 and 7.3.10.

Dell EMC Unity storage system support Support for Dell EMC Unity storage systems running O perating Environment 4.4.x and 4.5.x. Unity devices are managed by the unity class.

VPLEX GeoSynchrony support Support for VPLEX GeoSynchrony 6.1, 6.1 Patch 01 SP1.

XtremIO firmware support











Release Notes

Changed behavior This section describes changed behavior with functionality in fresh PowerPath installations. On upgrade, the previous settings might be retained where appropriate.

Dell EMC rebranding The name of this software has been changed from EMC PowerPath to Dell EMC PowerPath. The name has been updated wherever possible.

OpenSSL removal OpenSSL is needed to start EMC PowerPath Remote Management Component service. Install OpenSSL 1.0.x version library in the default windows system directory C: \Windows\System32 for remote management feature to work.

Fixed problems This section lists fixed problems by product.

PowerPath multipathing fixed problems The following table shows the fixed problems in PowerPath multipathing. PowerPath multipathing fixed problems

Problem number

Problem summary

Found in version

Fixed in version

PPWI-1073 PPWI-1073

For VMAX, VMAX, auto host host registration registration registe registers rs Windows Windows Server Server 2019 operati operating ng system system as Windows 2016.

6.3

6.4

PPWI-983

The vcredist logs are not available in PowerPath install logs location

6.3

6.4

PPWI-9 PPWI-954 54

In Wind Windows ows 2008 2008 R2 R2 Server Server,, the foll followi owing ng erro errorr messag message e

6.3

6.4

"Error extracting "'SETUP_1.CAB':Failure writing to target file."

is displayed when you try to upgrade from PowerPath 6.0 SP2 to 6.3 version PPWI-936 PPWI-936

PowerMax PowerMax Device Device Usage entries entries are are created created with blank blank hostna hostname me after after the the host host restarts.

6.3

6.4

PPWI-929 PPWI-929

The PowerMax PowerMax Data Data LUN LUN is automaticall automatically y detecte detected d without without manual re-scan re-scan in presence of the LUNZ.

6.3

6.4

PPWI-682 PPWI-682

The "Name of proces process s using using dev" dev" field field is is blank blank for for mounted mounted SRDF SRDF A/A A/A PowerMax PowerMax device.

6.3

6.4

PPWI PWI 675

The mo mount st stats pr process na name di displays th the fu full pa path in instead of of th the ex executable na name

63

64











Release Notes

PowerPath Migration Enabler fixed problems

Problem number

Problem summary

Found in version

Fixed in version

PPWI-1030 PPWI-1030

In Window Windows s Server Server 2019 cluster cluster setup, setup, the PowerPath PowerPath migrati migration on with with clusters clusters fails at sync state with target fault error.

6.3

6.4

Known problems and limitations This section lists the known problems and limitations by product. l

PowerPath multipathing known problems

l

PowerPath Migration Enabler known problems

l

Known interoperability problems

l

Limitations

PowerPath multipathing known problems The following table shows the known problems in PowerPath multipathing.

PowerPath multipathing known problems

Problem number

Problem summary

Workaround or resolution

PPWI-1134, PPWI-1104

Onli Online ne hel help p is not not dis displ play ayed ed in in Wind Window ows s Serv Server er 201 2019. 9.

None None..

PPWI-1 PPWI-1095 095

Upgrad Upgrade e from from PowerPat PowerPath h 6.3 to to 6.4 requi requires res two two reboots on Windows Server 2019.

None.


The Powe PowerPa rPath th Admin Administ istrat ration ion GUI GUI crashe crashes s when when the user configures mismatched paths in the administration GUI.

Run powermt check reconfig manually to remove

The Power PowerPat Path h install installati ation on shows shows the the warning warning

Run powermt check_registration manually for


mismatched paths state.

the FX licence to be set on the host. Failed to set policy on FX device recognition and the host is unlicensed

. This is an intermittent issue. PPWI-9 PPWI-997 97

PPWI-9 PPWI-943 43

In Wind Windows ows Server Server 2019, 2019, the the PowerPat PowerPath h multi multipat pathin hing g disks under the disk drives in Device Manager are hidden.

Open Device Manager, click the View menu, click

The PowerP PowerPath ath instal installat lation ion fails fails when when instal installin ling g on

Uninstall Microsoft Visual Studio 2017 and retry

Show Hidden Devices, to view the hidden disks.











Release Notes

PowerPath multipathing known problems (continued)

Problem number

Problem summary


following error message is displayed in the application event log: PowerPath EMC PowerPath Error: MPAPI: Error:I/O error.

PPWI-8 PPWI-827 27

During During NDM operat operation ion,, Powe PowerMa rMax x devi device ce does does not not display the correct 'Device Usage" information after "cutoversync " complete state.

None.

PPWI-7 PPWI-707 07

PowerPat PowerPath h inst install allati ation on fails fails if if Micr Microso osoft ft auto automat matic ic update is off in Windows Host.

Install the Universal C Runtime update for Visual Studio 2017.

PPWI-6 PPWI-614 14

The source source device device paths paths show show dead dead after after NDM NDM reve revert rt operation.

Rescan the devices after NDM revert operation.

PPWI-5 PPWI-552 52

SC cont control roller ler reboot reboot does does not not change change storag storage e interface name for the device with IOs.

Run powermt restore on affected device(s) or sc

The EMCManagementComponent service is not

Do the following steps. This process enables the user to upgrade from PowerPath 5.7.x to any version.

PPWI-386

stopping correctly in a particular host.

class.

l

Stop EMC PowerPath Remote Management

component service manually from services.msc. l

End the task EmcpMgmtComp from the Task Manager.

PPWIPPWI-48 48

If HBAs HBAs are are dis disab able led d and and enab enable led, d, Powe PowerPa rPath th may may display stale/incorrect information for some of the paths that come back alive.

This issue occurs when the path enumeration order changes during HBA enable, causing SCSI addresses of existing dead paths to be interchanged with alive paths from same volume, resulting in some CLI and GUI information to become outdated. To prevent this issue, enable HBA persistent binding during disable/enable operation.

PPWI-10

After running powermt remove on a ghost path, the

Wait for two perfmon intervals to get the performance data for the device that has new paths added or existing paths deleted.

powermt display perf dev command might throw an error for the corresponding pseudo device and PMI says that the device is not under PowerPath control. 4411 441176 76

On canc cancel elin ing g th the UAC UAC elev levatio ation n pro promp mptt dur durin ing g change/repair of PowerPath with the Uninstall/ Change program option from Control panel, PowerPath installation might display a misleading error

None. Ignore the error messages. With UAC enabled host, non-administrator users need to provide the admin user credential to proceed with PowerPath change/repair installation.













Release Notes


Problem number

Problem summary


4311 431116 16

The The Auto Automa mati tic c Host Host-A -Arr rray ay Regi Regist stra rati tion on func functi tion onal alit ity y fails if only LUNZs are presented.

When deploying a new array for the first time, manually register the initiator. Also, ensure that the hostname you have registered in the newly deployed array is the same as the hostname on the Windows host.

4310 31087

When When an Xtre XtremI mIO O LU LUN nam name e is is mo modifi dified ed from from the the array side, PowerPath is not able to display the newly modified LUN name even after running the powermt

None. This issue does not occur with XtremIO 4.0 or later.

update lun_names command because of a known issue with XtremIO. 428028

Running the powermt check force command can

None.

sometimes fail to remove some dead paths, with the following error message: ERROR: Cannot remove device that is in use: device_name

4270 427046 46

Even Even afte afterr ena enabl blin ing g the the Repo Report rt SCSI SCSI Name Name Stri String ng Inquiry Descriptor setting (report_scsi_name) on both the controllers, the Windows PowerPath Administrator GUI displays the NetApp arrays as Unknown.

For a NetApp HA pair, the following properties must be set for an initiator group (using the igroup command) before installing PowerPath: l

The report_scsi_name property must be set to yes (enabled) for both controllers of the pair.

l

The ALUA property must be set to yes (enabled) for both controllers.

For example, system1> igroup show -v < initiator group name> (FCP): OS Type: windows Member: 10:00:00:00:c9:ac:58:ec (logged in on: vtic)











Release Notes


Problem number

Problem summary


software as well preventing the devices from been claimed by MPIO. 399269, 397341

The following commands do not remove dead paths to a device if at least one path to the device is alive: l

powermt remove dev=all

l

powermt remove dev=device_name

l

powermt remove

Use powermt check to remove the dead paths.

and throw the following error message: ERROR: Cannot remove device that is in use: device_name

328730, 327297

The system state backup fails after uninstalling PowerPath due to PowerPath drivers listed in PnPLockdown files.

None.

PowerPath Migration Enabler known problems The following table shows the known problems in PowerPath Migration Enabler.

Migration Enabler known problems

Problem number

Problem summary


PPWI-6 PPWI-640 40

During During clus cluster ter migr migrati ation on clean cleanup, up, the the source source clus cluster ter disk goes offline after resource failover and f ailback.

The disk comes online after few minutes. The recovery and cleanup actions work after the disk comes online.

PPWI-5 PPWI-537 37

When When PPME PPME sessi session on is is in prog progres ress, s, more more than than norma normall

None.











Release Notes

Migration Enabler known problems (continued)

Problem number

Problem summary


hampered temporarily or permanently based on the duration and result of the Quarantine. 4458 445882 82

If an MSCS MSCS CSV CSV inv invol olve ved d in in a mig migra rati tion on fail fails s ove overr wit with h application writes, Migration Enabler may report a target fault.

Before planned CSV failover, ensure that there are no application writes to the CSV. If the CSV fails over and Migration Enabler reports a target fault, abort the migration.

4212 21216

When hen att attem empt ptin ing g to to pe perfor rform m a cle clean anup up opera perati tio on If cluster migrations are happening simultaneously in against a large number of cluster migrations, large numbers, there can be a delay period as the powermig cleanup command fails with the following failover nodes need some time to cleanup. Run the powermig recover command. message: PPME error(79): Not all nodes have reached the correct state to complete this operation, please try this or the recover command again later.

420905

In MS MSCS cl cluster en environments, powermig setup command succeeds if -cluster option is not

If you are performing a cluster migration, turn off the Maintenance Mode for the cluster disk.

specified for the source cluster disk which is in Maintenance Mode. 4196 419666 66

Repa Repair irin ing g Pow Power erPa Path th on the the node node that that is owni owning ng Quorum disk causes temporary Quorum disk failu re.

Before repairing PowerPath on node A, move Quorum resource from node A to node B.

4097 409778 78

Afte Afterr mig migra rati ting ng to a tar targe gett dev devic ice e lar large gerr tha than n the the Remove the device and restore is. You can do this source device, I/O larger than the source device may using device manager or devcon tool. fail. For example, after migrating from iSCSI LUN 1. Identify the pseudo pseudo device on MPIO bus which is harddisk47 (Maximum Transfer Length=256k) to FC related to the given disk device (PhysicalDrive#) LUN harddisk10 (Maximum Transfer Length=512k), I/O and remove it. on harddisk10 larger than 256k fail. 2. After removal, select Scan for new hardware in device manager to let system rediscover the device.











Release Notes

Migration Enabler known problems (continued)

Problem number

Problem summary


3232 323222 22

Powe PowerP rPat ath h dat data a mig migra rati tion on cann cannot ot surv surviv ive e fro from m a hos hostt reboot when the HostCopy migration session across different transports from Fibre Channel to iSCSI software initiator is outstanding. If a reboot does occur, the migration session may require recovery.

None.

296865

If the powermig pause and powermig resume

None.

commands are executed multiple times on the same handle Migration Enabler does not give any message to the user.

Known interoperability problems The following table shows the known interoperability problems with PowerPath. The issues reside outside of the PowerPath code.

Known interoperability problems

Problem number

Problem summary


PPCC-16 PPCC -160 0

If a Primary Primary<-> <->Sec Second ondary ary sides sides of of a SC SC Live Live Volu Volume me swap at any time due to any reason, a PowerPath host that has proximity based auto-standby enabled for those Dell SC array class devices, will not be able to automatically identify the swap. As a result, the host will continue sending I/O down to the secondary paths (primary before swap).

Disable the PowerPath proximity-based autostandby for SC arrays.

If the primary side of a SC Live Volume fails, a PowerPath display on a host, that has proximity based auto-standby enabled for those Dell SC array class

For Live Volumes from array running code 7.3 and above, enable "Report Non-Optimized Path" option from Dell SC manager, to prevent I/O to secondary











Release Notes

Known interoperability problems (continued)

Problem number

Problem summary


The problem blocks operation of PowerPath Management Pack for Microsoft Operations Manager (SCOM) as it relies on the events logged by PowerPath to generate path alerts. 411075, 410700

All Paths Dead message is observed during intercluster link failure on a HA clustered node to which preferred VPEX cluster is connected. The issue is seen only with VPLEX firmware 5.0.1 version.

Use VPLEX firmware version 5.0.1 patch 1 or later.

4057 405736 36

Beca Becaus use e of of a Ver Verit itas as issu issue, e, inst instal alla lati tion on of of Powe PowerP rPat ath h on a host where VxVM 6.0 has been installed and then uninstalled leaves all the Symmetrix devices yellow banged and removed from PowerPath control.

Perform one of the following steps: l

If system has not been rebooted after Veritas uninstallation, run PowerPath 6.0 repair and reboot the system to add the missing device strings back to MPDEV SupportedDeviceList.

l

If system has been rebooted after Veritas uninstallation: 1. Run PowerPath PowerPath 6.0 repair. repair. 2. Run Run ppinstall reinstall -hwid $sdl 3. Reboot Reboot the system system..

3395 339544 44

Emul Emulex ex OCM (One OneComm Comman and d Man Manag age er) is slow low to to install when a VPLEX LUNZ is visible to the host. VPLEX tracking number: zephyr-q9228

Install VPLEX GeoSynchrony 4.2.

3332 333290 90

If Mig Migra rati tion on Ena Enabl bler er pre pre-s -set etup up che check ck fai fails ls bec becau ause se the the maximum transfer length for the target LUN is smaller than it is for the source LUN, powermig setup fails

Use the HBA management utility to change the maximum transfer length by lowering it on the source HBA or increasing it on the tar get HBA. Reboot may be required after the change.

with the following error message: PPME error (66): Target’s max transfer attribute is too small













Release Notes

Limitations This section lists the limitations by product. l

PowerPath multipathing limitations

l

PowerPath Migration Enabler limitations

PowerPath multipathing limitations This section lists the PowerPath multipathing limitations.

PowerPath for Windows includes the following limitations: l

l

l

l

On Windows Server 2008 and later, disks are marked offline when first added to the host. The user must manually enable these offline disks before they can be used. To avoid this issue run the following command in diskpart, san policy=onlineall . This command configures the system to leave new SAN drives online. After a back-end failure, path failures (where the path state transitions from alive to dead) cause a nonzero error count. While the error count should be the same for all devices, it may differ across devices (due to Windows Plug and Play behavior). Run powermt restore to reset the error count. VPLEX has known limitations with NDU (non-disruptive upgrades). Refer to the VPLEX documentation and VPLEX tracking zephyr-q7910 for more information. Boot from SAN on 4k sector size LUNs is not supported. Use only 512 sector size LUNs as boot LUNs in a Boot from SAN environment. 4k sector size LUNs are











Release Notes

l

When one or modes enter into Quarantine mode in Windows Server 2016 cluster, ongoing powermig migrations fail. Powermig does not support Quarantine mode.

Technical notes This section describes technical notes by product. l

PowerPath multipathing technical notes

l

PowerPath Migration Enabler technical notes

PowerPath multipathing technical notes This section lists the PowerPath multipathing technical notes.

Licensing PowerPath through FX Licensing PowerPath gets licensed automatically when it detects any data device from PowerMax with FX software package. If PowerPath is already licensed using a license key, it continues to use it, even if FX is available. If the license key expires, PowerPath detects FX license automatically. If the host with only FX license has all the PowerMax data devices removed, PowerPath is unlicensed on subsequent reboot.

Manually rescanning devices from Windows Device Manager Manually rescan devices from Windows Device Manager in the following scenarios:











Release Notes

l

l

Fresh PowerPath installation on a parent partition where all pass-through disks will be managed by PowerPath. PowerPath upgrade on a parent partition where all pass-through disks have been or will be managed by PowerPath.

The corrective action to take in these instances is to reconfigure the pass-through disks for the Hyper-V VM.

Virtual machines not starting automatically After PowerPath installation and system reboot, all drives go offline and VMs are prevented from starting automatically.

This is expected behavior on Windows Server 2008 and later and Windows Server 2008 R2 when using the default SAN policy (OfflineShared). This can be resolved by using DiskPart SAN to change the policy to OnlineAll or powering on the VM after manually changing the disk status to Online from Disk Management after PowerPath installation and reboot.

Unity, VNX, and CLARiiON failover mode values The following table describes failover mode values and compatibility with PowerPath platforms. The Array failover mode field appears only when PowerPath manages Unity, VNX, and CLARiiON arrays. The failover mode setting applies to a server’s HBA ports, and is configured through the Unity/VNX OE Unisphere and CLARiiON Navisphere GUI or CLI. For more information about array failover modes, refer to the Unity, VNX, and CLARiiON documentation.











Release Notes

Storage Center front end port's friendly names. This action helps the storage administrator to associate the port name with the PowerPath display. For example, name the ports spa.1.05 and spa.2.06. These names combine the friendly names (spa.1 and spa.2) with the last two digits of the WWPN (05 and 06).

Environment and system requirements This section lists interoperability and host configuration information not found in other sources, and it provides references to where you can find more information. l

E-Lab Interoperability Navigator

l

Support Summary

E-Lab Interoperability Navigator For interoperability information, such as information about the hardware, software, and networked storage components that are tested and compatible with both Dell EMC storage systems and third-party storage systems, refer to the E-Lab Interoperability Navigator. The E-Lab Interoperability Navigator is Navigator is a web-based, searchable database of configuration information. Note

The information in E-Lab Interoperability Navigator takes precedence over the











Release Notes

Some third-party arrays are not compatible with MSFC/MSCS on Windows Servers 2008 and Windows Server 2012. Arrays are required to support SCSI-3 reservations. Refer to the vendor for support. When migrating devices in a cluster configuration, you should select one node to remain active and all secondary nodes should be shutdown during the migration, the only exception being MSFS/MSCS and CSV cluster environment, where you do not have to shutdown any nodes in the cluster to perform a cluster migration.

Dynamic disks support summary The following table summarizes support for dynamic disks. Dynamic disks

Technology

PowerPath multipathing

PowerPath Migration Enabler

Dynamic disks

Yes

Yes

File system support summary The following table summarizes support for file systems. File systems

Technology


Migration Enabler

FAT 32

Yes

Yes













Release Notes

Supported Windows Server distribution notes The following list provides a quick overview of supported Windows Server distributions. Support is for x64 only.

On Windows Server 2008 R2, the host must have KB 2921916 and 3033929 or their superseded KBs installed to support the SHA-2 drivers of PowerPath 6.1 and later releases. Check on Microsoft Support to Support to identify the superseded KBs of KB2921916 and KB3033929 respectively. Run NO_KBCHECK=1 during a CLI-based installation if the KBs or their superseded KBs are already installed. This option avoids the verification of already installed prerequisite KBs. The host must also have Microsoft hotfix KB-979710 only when Microsoft Failover Cluster feature is installed.

On Windows Server 2019, the PowerPath multipathing disks are hidden. The disks











Release Notes

Storage systems

Technology


Migration Enabler

Dell SC Series running SCOS 6.7.x, 7.1.x, 7.2.x, 7.3.x

Yes

Yes; with HostCopy only

VMAX3 Family running HYPERMAX OS 5977

Yes

Yes; with HostCopy and OR

PowerMax family running PowerMax OS 5978

Yes


Unity systems running OE 4.0.x, 4.1.x, 4.2.x, 4.3.x, 4.4.x, 4.5.x

Yes


VNXe2 series running OE 3.0.x, 3.1.x

Yes












Release Notes

Virtually provisioned (thin) devices support summary The following table summarizes support for virtually provisioned (thin) devices. Thin devices

Technology


Migration Enabler

Symmetrix Enginuity/ HYPERMAX/PowerMax Operating Environment

Yes

Yes

CLARiiON FLARE and the Virtual Provisioning enabler or VNX OE

Yes

Yes

VPLEX 5.5 SP1 and above with XIO devices as the

Yes

Yes











Release Notes

Software packages

PowerPath release

Package

6.4

DellEMCPower.X64.signed.6.4.b220.zip

Installation and upgrade This section highlights PowerPath installation and upgrade. The installation and administration guide provides more information.

Installing and upgrading PowerPath To install or upgrade PowerPath, follow the instructions in the installation and administration guide available on Dell EMC Online Support. Support .











Release Notes

Upgrade paths

Version

Windows Server 2008 (x64-based version)

2008 R2

2012, 2012 R2

Powe PowerP rPat ath h 6.4 6.4

Dire Direc ct up upgrad grade e is is no not supported. Upgrade the operating system and then upgrade PowerPath

from PowerPath from PowerPath 5.5.x, 5.7.x, 6.0.x, 5.5.1, 5.7.x, 6.0.x, 6.1.x, 6.2.x, 6.3.x 6.1.x, 6.2.x, 6.3.x

2016

2019

from PowerPath 6.1.x, 6.2.x, 6.3.x

from PowerPath 6.3.x

On Windows Server 2008 R2, the host must have KB 2921916 and 3033929 or their superseded KBs installed to support the SHA-2 drivers of PowerPath 6.1 and later releases. Check C heck on Microsoft Support to Support to identify the superseded KBs of KB2921916 and KB3033929 respectively. Run NO_KBCHECK=1 during a CLI-based installation ins tallation if the KBs or their superseded KBs are already installed. This option avoids the verification of already installed installed pre-requisite KBs.













Release Notes

l

PowerPath Family CLI and System Messages Reference

l

PowerPath Family Product Guide

l

PowerPath Management Appliance Installation and Configuration Guide

l

PowerPath Management Appliance Release Notes

l

PowerPath Migration Enabler User Guide











Release Notes

You can download emcgrab from the Dell EMC Online Support website. Support website. Refer to the emcgrab ReadMe.txt file for prerequisite information and instructions on using the utility. If you encounter a problem with licensing, contact [email protected].











Release Notes

Docu92278 PowerPath for Windows 6.4 and Minor Releases Release Notes

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