HP P6000 manual Disk types, Disk group types, General guidelines

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Disk types

The disk type specifies the type of physical disk drives that can be included in a disk group. The types are:

Online disk type. All physical drives must be Fibre Channel or enterprise SAS drives. This disk type provides first tier performance and reliability.

Near-online disk type. All physical drives are lower cost, lower performance hybrid Fibre Channel or midline SAS disk drives. Hybrid drives are dual ported, Fibre Attached Technology Adapted (FATA) drives. This disk type provides second tier performance and reliability.

Solid state drive disk type. All physical drives must be solid state drives (SSD). This disk type provides first tier, very high performance and reliability.

Disk type support varies with HP XCS controller software versions. The following table summarizes support and typical uses.

Feature	Online	Near-online	Solid state drive
XCS support	All versions	All versions	XCS 09500000 or later
Physical disks	Fibre Channel/SAS drives	FATA/SAS drives	Solid state drives
Typical uses
Disaster tolerance	Preferred usage	Preferred usage	Preferred usage
Disk-to-disk backup		Preferred usage
Disk-to-tape backup		Preferred usage
Frequent file access	Preferred usage		Preferred usage
Infrequent file access		Preferred usage
High performance	Preferred usage		Preferred usage
Virus attack recovery		Preferred usage

Disk group types

When a disk group is created, it is assigned a disk group type: basic or enhanced (default).

Disk group type	Supported Vraid levels	EVA support
Basic	Vraid0, Vraid1, and Vraid 5	EVA4000/4100/4400/6000/
		6100/6400/8000/8100/8400
Enhanced	Vraid0, Vraid1, Vraid5, and Vraid6	EVA4400/6400/8400 P6300/P6500 EVA

General guidelines

One disk group (the default) is created when the system is initialized. You can add disk groups as needed.

•Each physical disk drive can belong to only one disk group.

•A single disk group may contain all the physical disk drives in the storage system.

•Multiple virtual disks can be created in a disk group, up to the disk group's capacity.

•Each virtual disk exists entirely within one disk group.

Disk groups 27

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Contents Abstract HP P6000 Command View User GuideSee Internet Protocol support Contents Monitoring storage system events Configuring HP P6000 Command View advanced tasksTroubleshooting HP P6000 Command View Maintaining and managing HP P6000/EVA storage systemsComponents Support and other resources HP array event code formats and descriptionsGlossary 100 Index 103 HP P6000 Command View software suite OverviewPrerequisites Server-based and array-based management HP P6000 Command View featuresServer-based configuration HP Management Integration Framework Array-based configurationUser interface Hardware-SeeHardware Storage systems point of viewSettings point of view Settings point of viewBrowsing to array-based HP P6000 Command View Accessing HP P6000 Command ViewBrowsing to server-based HP P6000 Command View Running server-based HP P6000 Command View from the desktopIP address formats Internet Protocol supportPassword protection for storage systems Managing security and passwordsServer-based HP P6000 Command View security groups Array-based HP P6000 Command View security groupsEnabling management of a password-protected storage system Password formatsConsiderations Setting a password for HP EVA storage systems Disabling management of a password-protected storage systemSingle sign-on from HP Systems Insight Manager Disabling management of a password-protected storage systemManaging security and passwords Instant-on licenses Licensing HP P6000/EVA storage systemsLicenses to use and license keys License typesFcip licenses Model upgrade licensingModel upgrade support Data migration licensesEntering license keys Configuring email to receive LTUsActivating an instant-on license Retrieving licenses Importing licenses Validating the license Adding an LTU Displaying temporary license expiration date Deleting incorrectly entered license keysProvisioning storage Disk groupsWorking with disk groups Disk types Disk group typesGeneral guidelines Disk group occupancy and occupancy alarm level Disk group capacityNumber of physical disks in a group Redundancy Vraid levels Virtual disks Working with virtual disks in HP P6000 Command ViewVirtual disks Hosts Working with hosts in HP P6000 Command ViewThin provisioning PresentationOnline virtual disk migration Mirrorclone migrationThin provisioned disk Replicating storage HP P6000 Business Copy softwareSnapclones Monitoring snapshot space SnapshotsSnapshot types Snapshot guidelinesMirrorclone guidelines MirrorclonesFractured mirrorclone guidelines Synchronized mirrorclone guidelinesMirrorclone states ContainersOptimizing snap creation Using containers preallocationOptimizing replication performance Planning for host I/O workloadsMinimizing snapclone workloads Minimizing the number of snapshotsMinimizing simultaneous replication operations HP P6000 Continuous Access software Working with DR groups in HP P6000 Command ViewDR groups Data replication protocol options Creating DR groupsReplicating storage Initializing storage systems Maintaining and managing HP P6000/EVA storage systemsUSER-INITIATED Service Mode Active on this Storage System User-initiated service modeUninitializing storage systems Starting the storage systemShutting down the storage system HSV210A controller rear view Hardware Working with hardware in HP P6000 Command ViewRemote service test Verifying hardware statusStorage system identity information Updating HP controller software Using multiple management servers to manage arraysConfiguring iSCSI devices Management server event log Monitoring storage system eventsEvents overview Email notificationController termination event log Viewing eventsConfiguring event notification Configuring host notificationViewing additional information Applying a customized host notification list Filtering events by severityApplying a customized event configuration file Retrieving the parse fileSelecting individual events Retrieving the Management Information Base Sending the event file Configuring HP P6000 Command View advanced tasks Setting user interface optionsCreating page footer messages Setting a remote location for audit logs Setting audit logging optionsChanging the login credentials array-based management Changing port and timeout parametersHttps//managementmoduleIPaddress2373 Running HP P6000 Command View in a multi-homed environmentOptimizing performance Troubleshooting HP P6000 Command ViewRestarting the HP P6000 Command View service Using the right-click menuNavigation pane lists duplicate arrays Failed entities reported on the disk enclosure Error messages in the user interfaceFailed communication link to iSCSI devices Failed connection warning for empty controller host portsFailed I/O module Troubleshooting access to array-based HP P6000 Command ViewFailed blower power supply Failed transceiverIPFilter page incorrectly displays IPv6 address Unexpected behavior when using older Windows HBA driverStorage system connection down error message Virtual disk sizes displayed incorrectlyWebes 5.5 receiving events inconsistently Version numbers differ\Program Files\Hewlett-Packard\EVA Performance Monitor ComponentsHP P6000 Performance Data Collector valid objecttype values Displaying historical state changes and performance dataHP P6000 Performance Data Collector objectid values Configuring the HP P6000 Command View serverDisplaying HP P6000 Command View access credentials Configuration file for performance and state data loggingConfiguring HP P6000 Performance Data Collector Logging configuration fileEvents and logs Connecting to HP P6000 Performance Data Collector remotely Configuration recommendationsSSL protocol Prohibited commandsAdding friendly names Using friendly namesBackward compatibility Creating the friendly names host fileAdding friendly names manually Mapping worldwide names to friendly namesUsing short names Refreshing data Using the command line interfaceViewing arrays Specifying the outputSpecifying data output in multiple files Filtering dataHP P6000 Performance Data Collector commands CommandsLuns HP P6000 Performance Data Collector command modifiers Command modifiersNots Using the graphical user interfacePage Configure filtering Data filteringObjects and counters HP EVA storage array HP EVA storage controllerHP EVA virtual disk HP EVA virtual disk group HP EVA host port statistics HP EVA host connectionHP EVA physical disk group HP EVA physical diskHP EVA DR tunnels HP EVA DR Group Information Support and other resources Contacting HPRelated information Typographical conventions WebsitesDocument conventions Software component IDs HP array event code formats and descriptionsEvent code format Event code types and descriptionsCorrective action codes Event information packet EIP typesHP array event information packet EIP types HP array coupled crash control codes Coupled crash control codesHP array dump/restart control codes Dump/restart control codesEVA GlossarySAN See also virtual disk CLI IndexIndex 105

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