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CAUTION:

Removing multipathing software from a multipath hardware con

fi

guration can cause data loss or

corruption. You must disconnect the server from the multipath storage or eliminate all but one path to

that storage from the server prior to removing the HP MPIO EVA DSM.

To remove HP MPIO EVA DSM, complete the steps below:

1.

Back up all user data on multipath storage.

2.

If possible, disconnect the storage from the server. If it is necessary to maintain single-path

connections from the server to the storage (as in the case of servers that boot from a SAN device),

use the following guidelines:
• If it is a one-host/one-storage array, HP recommends removing redundant cable connections.
• If the storage continues to be accessed by other servers still in multipath mode and by this

server in single-path mode and it is on an EVA system, use switch zoning to establish the

single connection (path) from the server.

NOTE:

Make sure you perform step 1 and step 2 before proceeding further.

3.

Select

Start

>

Settings

>

Control Panel

>

Add or Remove Programs

.

4.

Select

HP MPIO Full Featured DSM for EVA4x00/6x00/8x00 family of Disk Arrays

from the Remove

Program dropdown list.

5.

Click

Remove

and follow the on-screen instructions.

The system displays a cautionary statement advising of the potential data loss or corruption that may

result from removing this software.

6.

Close the

Add/Remove Programs

window.

NOTE:

The LUNs may be inaccessible at this time.

7.

Reboot the system.

NOTE:

For Windows Server 2008 – Server Core, go to the installation location from the command prompt and

run

Launch.exe

. Select Remove > Remove all installed components, to remove HP MPIO EVA DSM.

Using silent installation

Silent installation can be run from the installation location on your computer or from a network drive. It

installs the HP MPIO EVA DSM with little intervention. Silent installation is useful if you are installing the

software on a large number of servers that require software installation.
This section describes the following:

• Installing HP MPIO EVA DSM
• Upgrading HP MPIO EVA DSM
• Removing HP MPIO EVA DSM
• Creating response

fi

les for silent mode operations

Syntax:

HP MPIO Full Featured DSM for EVA4x00/6x00/8x00 family of Disk Arrays 3.00.00

15

Содержание MPIO

Страница 1: ...installation and reference guide HP MPIO Full Featured DSM for EVA4x00 6x00 8x00 family of Disk Arrays 3 00 00 Part number AA RW7SJ TE First edition February 2008 ...

Страница 2: ...U S Government under vendor s standard commercial license The information contained herein is subject to change without notice The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or o...

Страница 3: ...talling HP MPIO EVA DSM 16 Upgrading HP MPIO EVA DSM 17 Removing HP MPIO EVA DSM 17 Creating response files for silent mode operations 17 Setting up boot from SAN 18 2 Support for load balancing in Failover Cluster Server environment for Windows Server 2008 19 Recovering inaccessible disk devices 19 3 Support for load balancing in Microsoft Cluster Server environment for Windows Server 2003 21 Ena...

Страница 4: ...4 hpprutil devices 34 hpprutil clear device 34 hpprutil help 35 B Multipathing driver event log messages 37 MPIO SYS event log messages 37 HP MPIO EVA DSM event log messages 39 C Managing MPIO devices using Microsoft provided interfaces on Windows Server 2008 41 Multipath I O feature 41 Managing multipath support 41 MPIO ed Devices 41 Discover Multi paths 42 DSM Install 43 Managing multipath disk ...

Страница 5: ...ths tab enabled 43 3 MPIO Properties page with DSM Install tab enabled 44 4 Multi Path Disk Device Properties page 45 5 Multi Path Disk Device Properties page 46 6 Multi Path Disk Device Properties page 47 7 MPIO Path Details page 48 HP MPIO Full Featured DSM for EVA4x00 6x00 8x00 family of Disk Arrays 3 00 00 5 ...

Страница 6: ...es 1 Document conventions 8 2 Pre installation checklist 12 3 Notification strings 31 4 MPIO SYS event log messages 37 5 HP MPIO EVA DSM event log messages 39 6 HP DSM equivalent load balance policies 46 6 ...

Страница 7: ... and users who are experienced with the following Microsoft Windows Server 2003 x86 IA64 and x64 Microsoft Windows Server 2008 Server Core x86 IA64 and x64 Microsoft Windows 2008 Server core x86 and x64 EVA4000 4100 4400 EVA6000 6100 and EVA8000 8100 disk arrays Microsoft Cluster Server MSCS Failover Cluster environments Related documentation In addition to this guide see HP MPIO Full Featured DSM...

Страница 8: ...alic font Text emphasis Monospace font File and directory names System output Code Text typed at the command line Monospace italic font Code variables Command line variables Monospace bold font Emphasis of file and directory names system output code and text typed at the command line WARNING Indicates that failure to follow directions could result in bodily harm or death CAUTION Indicates that fai...

Страница 9: ... service provides you with e mail updates on the latest product enhancements newer versions of drivers and firmware documentation updates as well as instant access to other product resources After signing up you can quickly locate your products by selecting Business support and then Storage under Product Category HP authorized reseller For the name of your nearest HP authorized reseller In the Uni...

Страница 10: ...10 About this guide ...

Страница 11: ...that your system components support the HP MPIO EVA DSM and determine whether you need to upgrade hardware or software before installation To prepare your system for the installation of HP MPIO EVA DSM 1 Complete the pre installation checklist Table 2 2 Install all hardware components as described in the hardware installation and configuration documentation 3 Install any required operating system ...

Страница 12: ...g HP MPIO EVA DSM You can install HP MPIO EVA DSM on a stand alone system or a cluster configuration The installation procedure depends on the current configuration of your system This section describes how to install HP MPIO EVA DSM on the following configurations Installing HP MPIO EVA DSM on stand alone systems Installing HP MPIO EVA DSM on cluster configurations Installing HP MPIO EVA DSM on s...

Страница 13: ...edistribute cluster resources as desired Upgrading HP MPIO EVA DSM You can upgrade HP MPIO EVA DSM from an existing version to the current version on a stand alone system or cluster configuration This section describes how to upgrade HP MPIO EVA DSM on the following configurations Upgrading HP MPIO EVA DSM on stand alone systems Upgrading HP MPIO EVA DSM on cluster configurations Upgrading HP MPIO...

Страница 14: ...containing resources as needed b Redistribute cluster resources as desired Migrating from Windows Server 2003 to Windows Server 2008 with HP MPIO EVA DSM To migrate from Windows Server 2003 to Windows Server 2008 with HP MPIO EVA DSM complete the steps below 1 Back up all user data 2 Install or Upgrade to HP MPIO EVA DSM 3 00 00 see Chapter 1 3 Upgrade to Windows Server 2008 4 Double click the bat...

Страница 15: ...ol Panel Add or Remove Programs 4 Select HP MPIO Full Featured DSM for EVA4x00 6x00 8x00 family of Disk Arrays from the Remove Program dropdown list 5 Click Remove and follow the on screen instructions The system displays a cautionary statement advising of the potential data loss or corruption that may result from removing this software 6 Close the Add Remove Programs window NOTE The LUNs may be i...

Страница 16: ...r NOTE The C in f1C and f2C refers to a local drive on the system or a network drive which is used to obtain the response file and write the MPSInstallLog txt provided there is write permission in the directory For 32 bit systems Default_Target_Dir C Program Files Hewlett Packard HP MPIO DSM EVA DSM For 64 bit systems Default_Target_Dir C Program Files x86 Hewlett Packard HP MPIO DSM EVA DSM User_...

Страница 17: ...edit the renamed default setup iss file as follows a In line 23 replace Component count 2 with Component count 1 b Remove line 24 c In line 25 replace Component 1 DSM with Component 0 DSM 4 If you want to avoid the automatic reboot feature edit the setup iss file as follows a In line 39 replace Result 6 with Result 1 b In line 40 replace BootOption 3 with BootOption 0 Removing HP MPIO EVA DSM To r...

Страница 18: ...AN that uses HP StorageWorks HBAs and RAID arrays Booting externally offers the following advantages Optional elimination of server based internal boot devices Decreased downtime in the event of a server failure Booting from a SAN requires specific setup procedures based on the specific software solutions HBA firmware and boot BIOS versions See the following documents for detailed information abou...

Страница 19: ...k device the device becomes inaccessible to the host systems connected to it This is because the strong reservation type persistent reservations supports load balancing in clusters You can use the persistent reservations clear utility that comes with the HP MPIO EVA DSM package to remove the stray reservations For more information on how to use this utility see HP MPIO EVA DSM persistent reservati...

Страница 20: ...20 Support for load balancing in Failover Cluster Server environment for Windows Server 2008 ...

Страница 21: ...Support for load balancing in MSCS environments must be enabled on all cluster nodes in the HP MPIO EVA DSM The disk array containing the cluster resources must support the SCSI 3 persistent reservations NOTE Contact HP technical support for details on disk arrays and the firmware revisions that support persistent reservations Enabling support for load balancing in MSCS environments You can enable...

Страница 22: ...rameter to take effect NOTE Once all the nodes in the cluster have the support for load balancing in MSCS enabled you can change the load balancing policy for the cluster device s using the HPDSM CLI or HP MPIO DSM manager Disabling support for load balancing in MSCS environments To disable the load balancing support in MSCS environments in HP MPIO EVA DSM complete the following steps NOTE You mus...

Страница 23: ...rvations In such cases as part of step 1 in the above sections HP recommends that you move the cluster resources to the set of nodes that has the majority reservation Recovering inaccessible disk devices If there is a stray reservation on a disk device the device becomes inaccessible to the host systems connected to it This is because the strong reservation type persistent reservations supports lo...

Страница 24: ...24 Support for load balancing in Microsoft Cluster Server environment for Windows Server 2003 ...

Страница 25: ...ALB is disabled for the newly discovered LUN If the newly discovered LUN is part of any Logical Unit Group the ALB setting of the existing group prevails NOTE All devices that are part of the Logical Unit Group has the same ALB setting The ALB setting is not applicable for devices that have the No Load Balancing policy enabled The ALB setting for a given LUN is persistent across host system reboot...

Страница 26: ...26 Adaptive Load balance ...

Страница 27: ...dsm set device policy for a definition of the policies The P B T L column shows the device port bus target and LUN Example hpdsm devices Device Device Name Serial No Active Paths Policy Disk P B T L ALB 1 HP HSV210 600508B400101F6A000070001D950000 9 SQST Disk 10 4 0 1 1 Y 2 HP HSV210 600508B400101F6A000070001D9B0000 9 SQST Disk 11 4 0 1 2 N 3 HP HSV210 600508B400101F6A000070001DA10000 9 RR Disk 12...

Страница 28: ...10002 3 0 2 3 2 P898DXAAQQO101U 2 Active 6 00010002 4 0 2 3 Device Device Name Serial No Active Paths Policy Disk P B T L ALB 2 HP HSV210 6005008B400101F600018000 2 SQST Disk2 3 0 2 4 N Path Controller Port State HBA Slot RTP P B T L 1 P898DXAAQQO101U 2 Active 7 00010002 3 0 2 4 2 P898DXAAQQO101U 2 Active 6 00010002 4 0 2 4 hpdsm paths device Syntax hpdsm paths device x The hpdsm paths device comm...

Страница 29: ...to the device in a round robin manner Shortest_Queue_Requests SQR Each I O request is routed to the active path with the least number of outstanding requests Shortest_Queue_Bytes SQB Each I O request is routed to the active path with the least number of outstanding data bytes Shortest_Queue_ServiceTime SQST Each I O request is routed to the active path where the total outstanding time for pending ...

Страница 30: ...vice path Syntax hpdsm set device x path y The hpdsm set device path command changes the preferred path for device x as shown in the example below NOTE Use the hpdsm paths device command to view the available paths for the device hpdsm set device 1 path 1 Device Name HP HSV210 Device Serial No 600508B400101F6A000070001D950000 Controller Port No P8398DXAAQQ013 Change Load Balance policy y n y Prefe...

Страница 31: ...able 3 defines the selections for the notification command string Table 3 Notification strings Notification string Notification_ event_ number Notifies the user when DSM HPDSM_NEW_DEVICE 1 Detects a new device HPDSM_ADDITIONAL_PATH 2 Detects a redundant path to an existing device HPDSM_MAX_PATH_REACHED 3 Determines that a device configuration contains the maximum number of supported paths HPDSM_LA...

Страница 32: ...1F6A000070001DA10000 3 0 0 3 from hpeaadsm Received HPDSM_NEW_DEVICE 600508B400101F6A000070001E160000 3 0 0 4 from hpeaadsm Received HPDSM_NEW_DEVICE 600508B400101F6A000070001E1C0000 3 0 0 5 from hpeaadsm Received HPDSM_NEW_DEVICE 600508B400101F6A000070001E220000 3 0 0 6 from hpeaadsm Received HPDSM_NEW_DEVICE 600508B400101F6A000070001E280000 3 0 0 7 from hpeaadsm Received HPDSM_NEW_DEVICE 600508B...

Страница 33: ... The user mode components includes HP MPIO DSM manager GUI HP MPIO EVA DSM command line interface HP MPIO EVA DSM performance monitoring provider HP MPIO EVA DSM persistent reservations clear utility HP MPIO DSM manager GUI The HP MPIO DSM manager GUI monitors and manages the HP DSMs It also enables administrator to receive email notifications on path device failure events The HP MPIO DSM Manager ...

Страница 34: ...t use of this utility or for solving them The persistent reservations clear utility is located on the HP MPIO EVA DSM installation media and gets copied to the HP MPIO EVA DSM installation directory during the installation You can run this utility either on a system that has HP MPIO EVA DSM installed or on a system where HP MPIO EVA DSM is not installed To run this utility on a system where the HP...

Страница 35: ...clear the reservation on device 1 Successfully cleared the reservation on device hpprutil clear device 1 2 The requested operation is in progress Please wait HPPRUTIL will attempt to clear the reservation on device 1 to 2 Are you sure you want to continue y n y Attempting to clear the reservation on device 1 Successfully cleared the reservation on device Attempting to clear the reservation on devi...

Страница 36: ...36 Software components ...

Страница 37: ...There was an error creating a device claimed by the DSM MPIO failed to create a new or update an existing pseudo LUN device object even though DSM_name claimed support for it N A 16 A fail over on pseudo LUN occurred A pseudo LUN handled a failover This message does not indicate whether the failover was successful The Path ID of the failed device 17 Pseudo LUN is currently in a degraded state One ...

Страница 38: ...equest for QueryRemove was rejected because the device is in the paging hiber or crash dump path state N A 25 Requests that were queued to pseudo LUN have failed during resubmission An issued request from the pseudo LUN s queue failed This always occurs when the device is in the process of being removed Path ID used for resubmission 32 DSM_name failed to return a Path to pseudo LUN One of the foll...

Страница 39: ...erial number of the disk Y is the SCSI address of the path that has been recovered 107 The preferred path SCSI address Y for multipath capable disk X has been restored A previously selected path has been restored as the preferred path for I O operation X represents the serial number of the disk Y is the SCSI address of the preferred path that has been restored 108 The DSM has completed remove proc...

Страница 40: ...SCSI address Y Disk X is still accessible over redundant path s A redundant path to an existing multipath disk has failed X represents the serial number of the disk Y is the SCSI address of the path that failed 305 The DSM timed out on the I O throttle operation for multipath capable disk X The DSM was unable to successfully throttle I O activity within the time out period for the specified multip...

Страница 41: ...bles the Multipath I O feature Alternatively you can enable this feature manually as follows 1 Go to Server Manager and select Features Add Features The Add Features Wizard page displays 2 Select Multipath I O The MPIO framework and MS DSM are installed and the MPIO applet is added to the Control Panel Managing multipath support Microsoft provides a Control Panel applet that enables you to manage ...

Страница 42: ...a DSM either a vendor supplied DSM or MS DSM To manually disable support for a device select a Device Hardware ID and click Remove Discover Multi paths In the MPIO Properties page click the Discover Multi Paths tab This tab displays the Device Hardware IDs of the devices that support multipathing which are currently not managed but supported by MPIO Figure 2 shows the MPIO Properties page with the...

Страница 43: ...DSM either a vendor supplied DSM or MS DSM DSM Install In the MPIO Properties page click the DSM Install tab This tab enables you to install a vendor supplied DSM While installing a DSM you must specify the driver path the INF file name and the DSM Hardware ID Figure 3 shows the MPIO Properties page with the DSM Install tab enabled HP MPIO Full Featured DSM for EVA4x00 6x00 8x00 family of Disk Arr...

Страница 44: ...r the MPIO tab enables you to perform basic disk and path management Figure 4 shows the Multi Path Disk Device Properties page HP MPIO EVA DSM supports the management infrastructure of the MPIO tab for features that are applicable to the HP DSM To manage the Multi Path Disk Device through this interface complete the following steps 1 Go to Device Manager and select the MPIO managed device identifi...

Страница 45: ...vice such as Load Balance Policy DSM Name number of paths and path related information You can modify the Load Balance Policy of the device by selecting the appropriate policy from the drop down menu Figure 5 displays the load balancing policies for HP DSM HP MPIO Full Featured DSM for EVA4x00 6x00 8x00 family of Disk Arrays 3 00 00 45 ...

Страница 46: ...ivalent load balance policies MPIO Tab HP DSM Failover Only No Load Balance NLB Round Robin With Subset Not applicable Round Robin Round Robin RR Least Queue Depth Shortest Queue Requests SQR Weighted Paths Not applicable Vendor Specific Shortest Queue Service Time This policy cannot be selected for the HP MPIO FF EVA DSM from the MPIO tab 4 To view additional information about the DSM click Detai...

Страница 47: ...system behavior HP recommends that you do not modify these counters before consulting the HP Service personnel 6 To change the path state select the path and click Edit The MPIO Path Details page for the path displays Figure 7 shows the MPIO Path Details page 7 Modify the details of the path if required and click OK HP MPIO Full Featured DSM for EVA4x00 6x00 8x00 family of Disk Arrays 3 00 00 47 ...

Страница 48: ...Figure 7 MPIO Path Details page 48 Managing MPIO devices using Microsoft provided interfaces on Windows Server 2008 ...

Страница 49: ...f MPIO framework supported by the DSM see the HP MPIO Full Featured DSM for EVA4x00 6x00 8x00 family of Disk Arrays 3 00 00 release notes Problem HP MPIO DSM fails to manage the disk devices Solution To troubleshoot this problem complete the following steps 1 Verify if the device is currently under multipath support To do this go to Control Panel and select MPIO Verify the existence of the corresp...

Страница 50: ...50 Troubleshooting ...

Страница 51: ... a device by the RAID system controller mode A user selectable parameter that specifies path behavior during normal and failure conditions Paths can be set to one of the following modes Preferred Indicates the path you choose for the desired I O paths When a path is in preferred mode load balance is not enabled and the Load Balance Type displays as none Alternate Indicates a path that is used for ...

Страница 52: ...the environment For parallel SCSI configurations the target is the actual target number assigned to a device For Fibre Channel configurations a target number is assigned by a mapping function at the miniport driver level and is derived from AL_PA Arbitrated Loop Physical Addresses in an FC AL topology For SAN switched fabric a target is assigned to a WWPN This target can have values between 16 and...

Страница 53: ...choice web site 9 I installation silent 15 installing Multipathing software 12 M MPDEV SYS 33 MPIO SYS 33 R related documentation 7 removing Multipathing software 14 S Subscriber s choice HP 9 symbols in text 8 T text symbols 8 W web sites HP documentation 7 HP Subscriber s choice 9 HP MPIO Full Featured DSM for EVA4x00 6x00 8x00 family of Disk Arrays 3 00 00 53 ...

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