HP P6000 manual Replicating storage

Page 44

Fibre Channel switches typically offer two types of frame routing between N_Ports:

•Source ID/Destination ID (SID/DID) routing, which transfers all exchanges through the fabric using the same path

•Exchange-based routing, which transfers all frames within an exchange using the same path, but other exchanges may use alternate paths

NOTE: B-class switches refer to SID/DID protocol as in-order delivery routing. C-class switches refer to SID/DID protocol as flow-based load balancing . Both switch classes use exchange-based routing terminology. See the individual switch user guides for configuration details.

The current HP FC Data Replication Protocol (HP-FC) uses multiple exchanges for each data replication transfer. One or more exchanges are used to transfer data and an additional exchange is used for command information. The HP-FC Protocol requires all frames within the transfer to be delivered in order. Therefore, if HP-FC Protocol is used in the fabric, the fabric must use SID/DID routing.

HP SCSI FC-Compliant Data Replication Protocol (HP SCSI-FC) was developed to take advantage of the exchange-based routing protocol available in fabric switches. HP SCSI-FC and HP-FC protocols are available on controller software versions later than 0952xxxx; earlier versions support only the FC-HP Protocol.

The three options listed in Figure 6 (page 43) are as follows:

•HP FC Data Replication Protocol. This protocol requires all transfers to be completed in order, which is accomplished by the proper configuration of the SAN fabric switches for SID/DID. See the HP P6000 Continuous Access Implementation Guide for specific settings and the appropriate switch user guides for detailed instructions.

An array configured for this protocol successfully creates a DR group only with an array capable of HP-FC, which is the default protocol for controller software versions 0952xxxx and earlier, and is user-selectable in later versions. Fabric misconfiguration with this protocol selection results in significant performance degradation and possible data integrity issues on the destination array.

•HP SCSI FCP Compliant Data Replication Protocol. This protocol supports the transfer of EVA data replication traffic in a fabric configured for exchange-based or SID/DID routing. The protocol can take advantage of the exchange-based fabric setting, but is not dependent on the fabric setting. For the proper configuration of the SAN fabric switches for Exchange, see the HP P6000 Continuous Access Implementation Guide; for specific settings, see the appropriate switch user guides for detailed instructions.

•Either. This selection should be used when the SAN contains arrays running both HP-FC and HP SCSI-FC protocols. The Either selection allows arrays only capable of HP-FC to successfully create DR groups with the arrays running controller software version later than 0952xxxx.

This facilitates the migration of data from older to newer arrays. The HP-FC protocol is dependent on the fabric configuration being set for SID/DID routing. The same fabric considerations noted in the HP-FC option apply to the Either selection as well.

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Contents HP P6000 Command View User Guide AbstractSee Internet Protocol support Contents Configuring HP P6000 Command View advanced tasks Troubleshooting HP P6000 Command ViewMaintaining and managing HP P6000/EVA storage systems Monitoring storage system eventsComponents Glossary 100 Index 103 Support and other resourcesHP array event code formats and descriptions Prerequisites HP P6000 Command View software suiteOverview HP P6000 Command View features Server-based and array-based managementServer-based configuration Array-based configuration HP Management Integration FrameworkUser interface Storage systems point of view Hardware-SeeHardwareSettings point of view Settings point of viewAccessing HP P6000 Command View Browsing to server-based HP P6000 Command ViewRunning server-based HP P6000 Command View from the desktop Browsing to array-based HP P6000 Command ViewInternet Protocol support IP address formatsManaging security and passwords Server-based HP P6000 Command View security groupsArray-based HP P6000 Command View security groups Password protection for storage systemsConsiderations Enabling management of a password-protected storage systemPassword formats Disabling management of a password-protected storage system Setting a password for HP EVA storage systemsDisabling management of a password-protected storage system Single sign-on from HP Systems Insight ManagerManaging security and passwords Licensing HP P6000/EVA storage systems Licenses to use and license keysLicense types Instant-on licensesModel upgrade licensing Model upgrade supportData migration licenses Fcip licensesConfiguring email to receive LTUs Activating an instant-on licenseRetrieving licenses Entering license keysAdding an LTU Importing licensesValidating the license Deleting incorrectly entered license keys Displaying temporary license expiration dateWorking with disk groups Provisioning storageDisk groups General guidelines Disk typesDisk group types Number of physical disks in a group Disk group occupancy and occupancy alarm levelDisk group capacity Redundancy Vraid levels Working with virtual disks in HP P6000 Command View Virtual disksVirtual disks Working with hosts in HP P6000 Command View HostsPresentation Online virtual disk migrationMirrorclone migration Thin provisioningThin provisioned disk Snapclones Replicating storageHP P6000 Business Copy software Snapshots Snapshot typesSnapshot guidelines Monitoring snapshot spaceMirrorclones Mirrorclone guidelinesSynchronized mirrorclone guidelines Fractured mirrorclone guidelinesContainers Mirrorclone statesUsing containers preallocation Optimizing replication performancePlanning for host I/O workloads Optimizing snap creationMinimizing simultaneous replication operations Minimizing snapclone workloadsMinimizing the number of snapshots DR groups HP P6000 Continuous Access softwareWorking with DR groups in HP P6000 Command View Creating DR groups Data replication protocol optionsReplicating storage Maintaining and managing HP P6000/EVA storage systems Initializing storage systemsUser-initiated service mode USER-INITIATED Service Mode Active on this Storage SystemShutting down the storage system Uninitializing storage systemsStarting the storage system HSV210A controller rear view Working with hardware in HP P6000 Command View HardwareStorage system identity information Remote service testVerifying hardware status Using multiple management servers to manage arrays Updating HP controller softwareConfiguring iSCSI devices Monitoring storage system events Events overviewEmail notification Management server event logViewing events Controller termination event logViewing additional information Configuring event notificationConfiguring host notification Filtering events by severity Applying a customized host notification listSelecting individual events Applying a customized event configuration fileRetrieving the parse file Retrieving the Management Information Base Sending the event file Creating page footer messages Configuring HP P6000 Command View advanced tasksSetting user interface options Setting audit logging options Setting a remote location for audit logsChanging port and timeout parameters Changing the login credentials array-based managementRunning HP P6000 Command View in a multi-homed environment Https//managementmoduleIPaddress2373Troubleshooting HP P6000 Command View Restarting the HP P6000 Command View serviceUsing the right-click menu Optimizing performanceNavigation pane lists duplicate arrays Error messages in the user interface Failed communication link to iSCSI devicesFailed connection warning for empty controller host ports Failed entities reported on the disk enclosureTroubleshooting access to array-based HP P6000 Command View Failed blower power supplyFailed transceiver Failed I/O moduleUnexpected behavior when using older Windows HBA driver Storage system connection down error messageVirtual disk sizes displayed incorrectly IPFilter page incorrectly displays IPv6 addressVersion numbers differ Webes 5.5 receiving events inconsistentlyComponents \Program Files\Hewlett-Packard\EVA Performance MonitorDisplaying historical state changes and performance data HP P6000 Performance Data Collector valid objecttype valuesConfiguring the HP P6000 Command View server HP P6000 Performance Data Collector objectid valuesConfiguration file for performance and state data logging Displaying HP P6000 Command View access credentialsEvents and logs Configuring HP P6000 Performance Data CollectorLogging configuration file Configuration recommendations Connecting to HP P6000 Performance Data Collector remotelyProhibited commands SSL protocolUsing friendly names Backward compatibilityCreating the friendly names host file Adding friendly namesMapping worldwide names to friendly names Adding friendly names manuallyUsing short names Using the command line interface Viewing arraysSpecifying the output Refreshing dataFiltering data Specifying data output in multiple filesCommands HP P6000 Performance Data Collector commandsLuns Command modifiers HP P6000 Performance Data Collector command modifiersUsing the graphical user interface NotsPage Objects and counters Configure filteringData filtering HP EVA virtual disk HP EVA storage arrayHP EVA storage controller HP EVA virtual disk group HP EVA host connection HP EVA host port statisticsHP EVA physical disk HP EVA physical disk groupHP EVA DR tunnels HP EVA DR Group Information Related information Support and other resourcesContacting HP Document conventions Typographical conventionsWebsites HP array event code formats and descriptions Event code formatEvent code types and descriptions Software component IDsHP array event information packet EIP types Corrective action codesEvent information packet EIP types Coupled crash control codes HP array coupled crash control codesDump/restart control codes HP array dump/restart control codesGlossary EVASAN See also virtual disk Index CLIIndex 105
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