Hp XP Continuous Access Software Instrukcja Użytkownika

HP StorageWorksXP24000/XP20000 Continuous AccessJournal Software User GuideAbstractThis guide explains how to use HP StorageWorks XP Continuous Access

◦ Reduces overhead and application impact at the production site by placing more of theworkload on the remote site◦ Centralizes operations for managem

Figure 46 Transferring Business Tasks from the XP Continuous Access Journal Secondary Site tothe Primary SiteXP Continuous Access Synchronous (2DC Con

Figure 47 2DC Configuration of XP Continuous Access Journal and XP Continuous AccessSynchronousIn the 2DC configuration shown above, the I/O data on t

Figure 48 Basic Behavior (2DC Configuration of XP Continuous Access Journal and XP ContinuousAccess Synchronous)The I/O data from the primary site hos

The XP24000/XP20000 Disk Array needs the following conditions in these sites:• Primary siteXP Continuous Access Synchronous program product◦◦ XP Conti

Restrictions About 2DCThis section explains important considerations to keep in mind when configuring a 2DC configurationby using XP Continuous Access

primary volume is in PAIR or COPY status, the XP Continuous Access Synchronous pairbecomes suspended by error.◦ To release an XP Continuous Access Jou

Figure 49 Transferring Business Tasks to the Recovered Primary Site (2DC Configuration)Data Retention UtilityYou can create an XP Continuous Access Jo

Table 24 The Access Attribute and Whether You Can Specify the Volume for the Continuous AccessJournal PairWhether You Can Specify the VolumeAccess Att

Performance MonitorThe Performance Monitor software product provides detailed information on the I/O activity andhardware performance of the storage s

Planning of Journal VolumesThis section explains what you need to consider when deciding on journal volume specifications.Data transfer speed for jour

2 About XP Continuous Access Journal OperationsThis chapter describes how XP Continuous Access Journal provides a storage-based, XP hardwaresolution f

increase in data to be transferred. If the data transfer speed of journal volumes is below the amountof temporary increase in the data to be transferr

Figure 51 Data Transfer Speed with XP Continuous Access Journal (Influence on Journal VolumeCapacity)The following factors determine the required jour

If you do not want to reverse the primary data volume and the secondary data volume, you willbe able to cope with a temporary increase in data transfe

Performing Remote Copy Between an XP12000/XP10000 Disk Array andan XP24000/XP20000 Disk ArrayXP Continuous Access Journal can be used to perform remot

Figure 53 Logical Path Between LDKC00 on the HP XP24000/XP20000 Disk Array and the HPXP12000/XP10000 Disk ArrayVolume that can Be Used to Create Pairs

For detailed information about the 3DC cascading configuration, see “XP Continuous AccessSynchronous (3DC Cascading Configuration)” (page 82). For det

4 Using the XP Continuous Access Journal GUIThis chapter describes how to use the XP Continuous Access Journal GUI:• “Journal Operation Window” (page

Table 27 Journal Operation Window DetailsDescriptionItemLists the journal groups in the local storage system, whichis the storage system you log in to

Table 27 Journal Operation Window Details (continued)DescriptionItemRestore: A restore journal group.Journal volumes and secondary datavolumes are reg

Table 27 Journal Operation Window Details (continued)DescriptionItem• JNLG (LDKC): Indicates the number of a journal groupin the local storage system.

Figure 1 XP Continuous Access Journal Operations for a Fibre Channel ConnectionJournal ObtainJournal obtain is the function that stores data from the

Table 27 Journal Operation Window Details (continued)DescriptionItemHalt: An operation for splitting or deleting the mirror isin progress. The primary

Table 27 Journal Operation Window Details (continued)DescriptionItem• Controller ID: The controller ID (name indicating themodel) of the remote storag

Table 27 Journal Operation Window Details (continued)DescriptionItemApplies settings in the Preview list to the storage systemsApplyCancels settings i

Figure 56 Volume List in the Pair Operation WindowTable 28 Pair Operation Window DetailsDescriptionItemLists the ports in the local storage system. Ho

Table 28 Pair Operation Window Details (continued)DescriptionItem• VOL: Identifies the volumes in the local storage system.A device ID ending in # (fo

Table 28 Pair Operation Window Details (continued)DescriptionItemPAIR: The volume is paired withanother volume. The two volumes arefully synchronized.

Table 28 Pair Operation Window Details (continued)DescriptionItem• JNLG-MirrorID: A journal group number and a mirrorID. The number on the left of the

Table 28 Pair Operation Window Details (continued)DescriptionItem• Sync: If the volume in the local storage system is aprimary data volume, this colum

Table 28 Pair Operation Window Details (continued)DescriptionItem• Pair Copy Time: The time taken for the copy operation(from the start of the operati

Table 28 Pair Operation Window Details (continued)DescriptionItem• CLPR: The number and the name of the CLPR where thedata volume belongs.• Pair Copy

data volume according to the write sequence number. This will ensure write sequence consistencybetween the primary and secondary data volumes. After t

Table 28 Pair Operation Window Details (continued)DescriptionItemThe number to the left of the slash (/) indicates the numberof items appearing in the

DKC is an acronym for disk controller, which controls an entire storage system. XP ContinuousAccess Journal windows use the term DKC to indicate a sto

Table 29 DKC Operation Window Details (continued)DescriptionItemLists detailed information about one of the following:• Remote storage systems (see “V

The Operation list shows the following information:DescriptionItemLists the remote storage systems of each LDKC in the localstorage system. The follow

1. In the Display box, select DKC.2. Select a remote storage system from the tree.The list shows logical paths. Each row in the list indicates one log

1. In the Display box, select Port.The tree shows a list of channel adapters and port attributes (Figure 61 (page 134)).2. Do one of the following in

Usage Monitor WindowUse the Usage Monitor window (see Figure 63 (page 136)) to monitor the connected storage system.This window provides the remote co

History WindowThe History window (see Figure 64 (page 137)) displays the history of the operations for data volumepairs. For example, the window shows

Table 31 History Window DetailsDescriptionItemThe current status of operation history:• No history file exists: Operation history does not exist.• Rea

Table 32 Operations Displayed in the History WindowDescriptionsDisplaysA data volume pair was defined.Pair definitionCreation of the data volume pair

Figure 3 Configuration for Multiple Secondary Storage SystemsStorage SystemsXP Continuous Access Journal operations involve the storage systems at the

Table 32 Operations Displayed in the History Window (continued)DescriptionsDisplaysAn operation for releasing a pair has been started at thesecondary

• If a failure occurs with two or more data volume pairs at the same time, the number of pairsshowing Pairsplit-r(Failure) or Ready for Delta resync(F

Table 33 Optional Operation Window Details (continued)DescriptionItemWhen you change settings in the Optional Operationwindow, the Preview list shows

5 Configuring Storage Systems and Logical PathsThis chapter describes how to set up XP Continuous Access Journal in your system and how toconfigure yo

• Display status of logical paths (see “Viewing the Status of Logical Paths” (page 152)).• Delete the relationship between the primary and the seconda

The port assigned to SLPR other than SLPR0 can be set to the target port attribute only.WARNINGS:• Before changing a Fibre Channel port to an initiato

To change the option settings for the storage system:1. Ensure that the Remote Web Console main window is in Modify mode.For detailed information abou

start the 65th pair until one of the other pairs is synchronized. When you change the MaximumInitial Copy Activities setting, the new setting applies

9. Select Option.10. In the DKC Option window, configure logical path options and storage system options. Fordetailed information about the options, s

TheAdd DKC window shows the following:• S/N: Enter the five-digit serial number of the remote storage system.• LDKC: Enter the LDKC number of the remo

system). This virtual storage system is called a logical DKC or an LDKC (logical disk controller).There is one LDKC in the storage system, and number

6. On the DKC Option window (Figure 69 (page 150)), change the options as desired. For detailedinformation about the options, see the explanations bel

1. Make sure the remote copy connections are properly configured.2. Ensure that the Remote Web Console main window is in Modify mode.For detailed info

Figure 70 Add Path WindowThe Add Path window shows the following:• Port: Select an initiator port on the local storage system.When specifying a port,

3. Do one of the following:• Click LDKC from the tree. In the upper-right list, select and right-click a remote storagesystem.• Click the remote stora

• M-R Path: The type of channel interface between the local and the remote storage systems.This column displays Fibre.• Minimum Paths: The minimum pos

Deleting Logical PathsBefore deleting the logical path(s), make sure that the remaining number of logical paths will begreater than the minimum number

When the Power is Removed from the Primary Storage SystemIf power is removed from the primary storage system during remote copy operations, the primar

If you turn the power off without changing the status of all data volume pairs to PSUS, and thenyou turn the power back on, the status of all data vol

data volume pair of the secondary storage system is PAIR, you must suspend the data volume pairof the secondary storage system by using Remote Web Con

6 Using Journal GroupsThis chapter describes how to set up XP Continuous Access Journal in your system and configureyour system for remote copy operat

The specifications for consistency group numbers are different from the specifications for journalgroup numbers. One storage system has a total of 256

in to the secondary storage system and are using XP Continuous Access Journal, the secondarystorage system is a local storage system and the primary s

6. Select Add.The JNL Volumes list shows the volumes that you want to register. The Operation column ofthe list shows Add.7. Click Set to close the Ed

◦ CLPR: The number and the name of the CLPR where the journal volume belongs.◦ Operation: Shows one of the following:This column is usually blank.Blan

Figure 73 The Free Volumes List and the PG Button in the Edit JNL Volumes WindowFigure 74 The Free Volumes List and the CU Button in the Edit JNL Volu

1. Ensure that the Remote Web Console main window is in Modify mode.For detailed information about how to do this, see the HP StorageWorks XP24000/XP2

Displaying Detailed Information about a Journal GroupTo view detailed information about journal groups in the primary storage system, log in to thepri

01 (00) [&]). A journal group number ending in [M] indicates the journal group is in a 3DCconfiguration with three Continuous Access sites (e.g.,

• Speed of Line: The line speed (in megabits per second) of data transfer.One of the following appears: 256, 100, or 10.The recommended setting values

◦ Volume: The number of data volumes that are registered in the mirror.◦ Capacity: The total capacity of data volumes that are registered in the mirro

3. Do one of the following:• In the tree, right-click a journal group under Registered, and then select JNL Groups andChange JNL Option.• In the upper

The XP Continuous Access Journal remote copy configuration between the primary storage systemand secondary storage system has the following requiremen

Figure 76 Change JNL Option WindowThe Change JNL Option window shows the following:• Inflow Control: Specify whether to restrict inflow of update I/Os

• Copy Pace: Specify the pace (speed) for an initial copy activity for one volume. The default isLow.◦ Low: The speed of the initial copy activity is

This setting does not take effect on master journal groups. However, if the RAID Managerhorctakeover command is used to change a master journal group

5. See the Preview list to check the journal groups that you want to delete.• To cancel deleting a journal group, select and right-click the journal g

Figure 77 Pairsplit-r WindowThe Pairsplit-r window shows the following:• S-VOL Write: Specify whether hosts can issue read I/O and write I/O to the se

1. Ensure that the Remote Web Console main window is in Modify mode.For detailed information about how to do this, see the HP StorageWorks XP24000/XP2

3. Do one of the following:• In the tree, select a master journal group or a restore journal group under Registered.• In the tree, select Journal Grou

Figure 78 Assign Remote Command Device WindowThe Assign Remote Command Device window displays the following settings. Using the AssignRemote Command D

7 Performing XP Continuous Access Journal Pair OperationsThis chapter discusses using the Pair Operation window of XP Continuous Access Journal.• “Rev

Figure 79 Display Filter WindowThe Display Filter window shows the following:• GID: Select the group number of a host group to be displayed. If you se

Caution: Data volumes and journal volumes that belong to different LDKCs cannot coexist in ajournal group.For detailed information about the specifica

• Set: Applies the settings in the Display Filter window to the list.• Cancel: Discards the settings and closes the window.Saving Pair Status Informat

• 00 is the LDCK number when the volume is a volume of an XP12000/XP10000 Disk Arrayor USP/VM.• A journal group number for the local storage system en

7. In S-VOL, specify the secondary data volume.• Use the left most drop-down list to specify a port.• Use the drop-down list in the middle to specify

Figure 80 Paircreate WindowCreating a Pair of Data Volumes (Paircreate) 183

The Paircreate window shows the following:• P-VOL: A primary data volume. The numbers indicate the port number, the GID, and the LUNof the primary dat

• Mirror: Assigns a master journal group to the primary data volume, assigns a restore journalgroup to the secondary data volume, and also assigns a m

Displaying Detailed Information about a Pair of Data VolumesUse the Detailed Information window to view detailed information about a pair of data volu

Figure 81 Detailed Information WindowThe Detailed Information window shows the following:• Status: The status of the pair. If the pair is split (or su

indicated by the arrow shaped icon is invalid. The copy direction is determined when youperform the delta resync operation.• Sync: If the volume in th

incorrect information appears. So, unless you have any special circumstances, do notchange or delete the port ID, GID, or LUN that you specified when

Table 2 Emulation Types for Journal VolumesSupported Emulation TypesEmulation CategoryOPEN-VNote: You can only use OPEN-V volumes for journal volumes.

for the currently shown 1,024 rows. The Display Filter settings (see “Filtering Information inthe List in the Pair Operation Window” (page 178)) can a

When the Change Pair Option window opens, the current option appears.• Set: Applies the settings to the Preview list in the Pair Operation window (“Pa

The Pairsplit-r window shows the following:• S-VOL Write: Specify whether to permit hosts to write data to the secondary data volume. Thedefault is Di

as modified, so that the primary storage system performs the equivalent of an entire initial copyoperation when the pairs are resumed.The administrato

Figure 84 Pairresync WindowThe Pairresync window shows the following:• Range: Specify the restore range. The default is LU if two or more pairs in the

• Resync Mode: Indicates the processing after recovery of the pairs.Normal: Split pair whose status is PSUS or PSUE is recovered.◦◦ Delta: The delta r

window (see “Displaying Detailed Information about a Pair of Data Volumes” (page 186)) tomonitor the detailed status of each pair.To restore a pair th

waiting for device-end from a primary storage system that cannot communicate with itsthe secondary storage system, thus allowing host operations to co

If a pinned track occurs on an XP Continuous Access Journal secondary data volume that is in the2DC configuration (that is, XP Continuous Access Journ

8 Usage Monitor OperationsThis chapter describes using the Usage Monitor window to follow the collection and display ofperformance monitoring statisti

© Copyright 2007, 2011 Hewlett-Packard Development Company, L.P.Confidential computer software. Valid license from HP required for possession, use or

Adding journal volumes during a remote copy operation may not change the journal datausage rate until the journal volumes are used. To check the journ

3. In the Display Item window (see “Display Item Window” (page 201)), select an appropriateoption in Select Volume:• To view I/O statistics for all LD

Figure 86 Display Item WindowTable 36 Remote Copy I/O StatisticsDescriptionStatisticHost I/OThe number of write I/Os per second.Write Record CountThe

Table 36 Remote Copy I/O Statistics (continued)DescriptionStatisticThe number of journals at the primary storage system.M-JNL Total Number of JournalT

Table 38 I/O Stats in Asynchronous Copy and R-JNL When Journal Group Attribute isMaster/Restore.DescriptionStatisticAsynchronous CopyThe number of asy

(1) Date and time when the operation finished(2) Time taken for copying (from the start to the end of copying). This is displayed only when the operat

9 Performing Disaster Recovery OperationsThis chapter describes how to determine the best approach for disaster recovery. The user shouldanticipate an

XP Continuous Access Journal pairs enables your business tasks to be taken over to the secondarysite, using secondary data volumes in the secondary si

Resuming Normal Operations at the Primary SiteOnce the XP Continuous Access Journal volume pairs have been established in the reverse direction,you ar

“Recovery from Failure in the Primary Site (When Delta Resync Operation is Performed)”(page 209), or if the primary/secondary relationship of the XP C

Figure 87 Recovery from Failure in the Primary Site (When Delta Resync Operation is Performed)Recovering from Primary Site Failures in XP Continuous A

XP Continuous Access Journal Remote Copy OperationsThis section describes the remote copy operations using XP Continuous Access Journal.Figure 5 (page

Figure 88 Transferring Operations to the Intermediate Site from the Primary Site in the Case ofFailureFor detailed information about how to use RAID M

Figure 89 Transferring Operations to the Primary Site in the Case of Failure in the Intermediate SiteRecovering from a Failure by Duplicating Volumes

1. Check the consistency of the XP Continuous Access Synchronous S-VOL in the intermediatesite.2. Use RAID Manager to execute the horctakeover command

Notes:• If you followed step a above, remove failures in the primary site and other locations,change the system to a 3DC multi-target configuration (s

1. Use RAID Manager to execute the horctakeover command on the XP Continuous AccessSynchronous pair.2. Use the XP Continuous Access Synchronous S-VOL

Figure 91 Recovery from a Disaster in the Primary Site (When Delta Resync Operation Is Performed)Recovering from a Disaster in a 2DC Configuration of

4. Confirm that the XP Continuous Access Journal S-VOL has changed to SMPL status.5. When the XP Continuous Access Journal S-VOL status changes to SMP

Recovering the Primary Site from a Failure When the System Consists ofMultiple Primary and Secondary Storage SystemsIf a disaster or a failure occurs

10 TroubleshootingThis chapter describes general troubleshooting errors and corrective actions:• “General Troubleshooting” (page 218)• “Checking XP Co

Table 41 General Troubleshooting Information for XP Continuous Access Journal (continued)Corrective ActionErrorCheck the pair status in the Detailed I

The base-journal data is stored in the entire data volume or the area for the difference. The journaldata for the entire data volume is created when t

Table 42 Troubleshooting Problems with the Status of Logical Paths (continued)Corrective ActionDescriptionPath StatusDelete the failed path, and also

Table 42 Troubleshooting Problems with the Status of Logical Paths (continued)Corrective ActionDescriptionPath StatusMake sure that the remote storage

Table 43 Troubleshooting Suspended XP Continuous Access Journal PairsCorrective ActionDescriptionApplies ToSuspendTypeClear the error condition at the

Table 44 Resolving XP Continuous Access Journal Pair SuspensionRecovery ProcedureSIMCauses of SuspensionClassificationAccording to the SIM, remove the

Troubleshooting When Using RAID ManagerWhen an error has occurred in an XP Continuous Access Journal pair operation using RAIDManager, identify the ca

Table 45 Error Codes and Error Contents When Operating RAID ManagerError ContentsError Code(SSB2)Error Code(SSB1)An error occurred in the XP Continuou

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)A request for XP Continuo

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)3744 A request of pair cr

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)8F17 A request of XP Cont

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)A request of XP Continuou

is written to the primary data volume is obtained as an update journal. The update journal is copiedto the secondary storage system, and then restored

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)XP Continuous Access Jour

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)XP Continuous Access Jour

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)A request of XP Continuou

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)E882 A request of XP Cont

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)E8A9 XP Continuous Access

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)A request of XP Continuou

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)In the intermediate site

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)In the configuration wher

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)The specified XP Continuo

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)A request of XP Continuou

read fails, the redundancy provided by the RAID1 or RAID5 technology recovers the failure. Theprimary storage system does not read the XP Continuous A

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)EB88 The XP Continuous Ac

Table 45 Error Codes and Error Contents When Operating RAID Manager (continued)Error ContentsError Code(SSB2)Error Code(SSB1)The XP Continuous Access

processing. Each time a SIM is generated, the amber Message LED on the control window (underthe Ready and Alarm LEDs) turns on as an additional alert

Table 46 Typical SIMs Showing the Reference Code and SIM Type (continued)SVP Log FileSIM GeneratedByDescriptionSeverityReference CodeByte 23Byte 22SIM

11 Support and Other ResourcesRelated Documentation• HP StorageWorks RAID Manager User Guide• HP StorageWorks XP24000/XP20000 Data Retention Utility U

HP Technical SupportFor worldwide technical support information, see the HP support website:http://www.hp.com/supportBefore contacting HP, collect the

GlossaryCCU Control unit.DDC Data center. Configurations can be either 2DC (two data centers) or 3DC (one primary and twosecondary data centers).DKC D

SIM Service information message.SMPL Simplex.SSID Subsystem identifier; storage system identifier.SVP Service processor. A computer built into a disk

IndexCcomponents, 13control units (CUs), 15conventionsstorage capacity values, 244Ddatabase recovery, 205disaster recovery, 205preparing for, 205docum

Difference ManagementThe differential data (updated by write I/Os during a split or suspension) between the primarydata volume and the secondary data

secondary data volume in the same order as the primary data volume, according to the sequencenumber information in the journal.Note: XP Continuous Acc

When journal data S2 arrives, the secondary storage system selects S2 as the next journal datato be settled. The journal data selected by the secondar

by the delta resync operation; you need not wait long before you can again access the XPContinuous Access Journal data volumes.A delta resync operatio

Figure 7 Delta Resync Setting 3DC Multi-Target Configuration - Before Failure OccursAs shown in Figure 7 (page 29), an XP Continuous Access Journal pa

Contents1 Overview of HP StorageWorks XP Continuous Access Journal Software...8XP Continuous Access Journal...

obtained in the XP Continuous Access Synchronous secondary site because of the failure in themaster journal volume or occurrence of the pinned track.

Figure 8 Delta Resync Setting 3DC Multi-Target Configuration - After Failure OccursFor the latest information on the availability of the delta resync

In the delta resync operation, the status of the XP Continuous Access Journal pair changes to PAIR(not COPY). This is because the delta resync operati

You can view the detailed pair status information at the Remote Web Console computer (XPContinuous Access Journal Detailed Information window) or at t

When an XP Continuous Access Journal data volume pair is split or suspended, the primary storagesystem generates a service information message (SIM) t

Table 5 XP Continuous Access Journal Data Volume Pair Status (continued)Secondary DataVolume AccessPrimary DataVolume AccessDescriptionPair StatusRead

Table 5 XP Continuous Access Journal Data Volume Pair Status (continued)Secondary DataVolume AccessPrimary DataVolume AccessDescriptionPair StatusRead

Table 5 XP Continuous Access Journal Data Volume Pair Status (continued)Secondary DataVolume AccessPrimary DataVolume AccessDescriptionPair StatusRead

whose status is not HOLD. If the 3DC configuration of three XP Continuous Access Journal sites,the host cannot write data regardless of the status of

Tracking Journal Data: The primary storage system and secondary storage system keep track ofany journal data that was discarded during the pairsplit o

Suspend Types...40Suspension Condition

Table 7 Consistency Status for Split/Suspended XP Continuous Access Journal Secondary DataVolumesDescriptionConsistency Status (shownat secondary stor

When the suspended XP Continuous Access Journal pair is resumed (pairresync), the primary andsecondary storage systems perform the following operation

• The journal data that reached the secondary storage system, but has not yet been restored.After marking these primary data volume tracks as modified

3 Preparing for XP Continuous Access Journal OperationsThis chapter describes the prerequisites and preparations to make to begin operations:• “Requir

• Remote copy connections−Fibre Channel (see “Setting up Remote Copy Connections”(page 52)):◦ Multimode or single-mode optical fibre cables are requir

usual for 30 days. After 30 days, you can only split or release the XP Continuous AccessJournal pairs.• Connection with an XP12000/XP10000 Disk ArrayX

Table 11 Supported Data Volumes and Journal VolumesSupport SpecificationsTypeJournal VolumeData VolumeAvailableCVS volumeUnavailableAvailableThe volum

Table 14 RAID Level Configuration of XP Continuous Access JournalSupport SpecificationsItemRAID1, RAID5, and RAID6 can coexist.RAID configuration of t

Table 15 Relationship Between Additional Shared Memory and Total Number of Bitmap Areasin the Storage SystemTotal Number of Bitmap Areas in theStorage

Table 16 Journal Group SpecificationsSupport SpecificationsItemUp to 256 journal groups (Number 0 to 255) per storagesystemThe recommended number of j

Hardware Configuration...87Setup Procedure...

Table 17 Volume Specifications in a Journal GroupSupport SpecificationsItemSame or different emulation types are available.Note: Only OPEN-V can be us

Duplicate VolumesSince the contents of the primary data volume and secondary data volume of an XP ContinuousAccess Journal pair are identical, the sec

Network Relay Devices” (page 155) for further information on powering off/on the primarystorage systems and secondary storage systems.6. HP Service Re

The remote copy connection between the primary and secondary storage systems can be configuredin three ways:• Direct connection (see Figure 10 (page 5

Configuring the Primary and Secondary Storage Systems for XP ContinuousAccess Journal OperationsAfter you have installed the XP Continuous Access Jour

11. Restart Performance Monitor, when necessary. On a primary storage system and a secondarystorage system, you will start Performance Monitor.12. Rep

Figure 14 Example 1: When the Consistency Group Contains Multiple Journal GroupsFigure 15 Example 2: When the Consistency Group Contains Multiple Jour

Figure 16 Example 3: When the Consistency Group Contains Multiple Journal GroupsBasic Behavior When Using Multiple Primary and Secondary Storage Syste

this point, two kinds of information, the time stamp information issued from RAID Managerand the sequence number indicating the write order, are added

If the above-mentioned conditions are all fulfilled, and when an error occurs to one of the journalgroups, the error will be communicated to other jou

5 Configuring Storage Systems and Logical Paths...143Reviewing System Configuration Tasks...

Figure 18 Flow of Transferring the Business Tasks from the Remote to Primary Site When the SystemConsists of Multiple Primary and Secondary Storage Sy

there is one primary site and two secondary sites. If secondary data volumes in two XP ContinuousAccess Journal secondary sites are combined, you can

6. Create an XP Continuous Access Journal pair of the second mirror in the primary site. Specifythe primary journal group and the primary data volume

• When the primary data volume of the XP Continuous Access Journal pair of the first mirror isin COPY status, the pair of the second mirror cannot be

requirements. In the following cases, delta resync operation will not be performed becausethe necessary journal data does not exist when:◦ After split

4. Execute the delta resync command (pairresync –swaps) on the XP Continuous AccessJournal pair for delta resync operation in the primary site. The st

• An XP Continuous Access Journal primary site (Primary site whose mirror ID is an arbitrarynumber M)• An XP Continuous Access Journal intermediate si

8. Create an XP Continuous Access Journal pair for delta resync operation by using the datavolumes in the primary and the secondary sites. Create an X

NOTE: In the journal group, even if the specified pair satisfies requirements, an error may occurwhen any XP Continuous Access Journal pair does not s

• The primary data volume in the XP Continuous Access Journal pair for delta resync operationis updated and then the capacity of the journal data exce

8 Usage Monitor Operations...199Reviewing the Usage Monitor Window...

Figure 22 Configuration when Transferring Business Tasks from the XP Continuous Access JournalIntermediate Site to the Primary SiteRestoring the XP Co

Figure 23 Configuration when Restoring the XP Continuous Access Journal Intermediate Site andthe Cascading ConfigurationEnabling the XP Continuous Acc

Table 19 Whether Non-XP Continuous Access Journal Volumes Can Be Used as XP ContinuousAccess Journal VolumesCan the Volumes BeUsed as JournalVolumes?C

Table 19 Whether Non-XP Continuous Access Journal Volumes Can Be Used as XPContinuous Access Journal Volumes (continued)Can the Volumes BeUsed as Jour

Table 19 Whether Non-XP Continuous Access Journal Volumes Can Be Used as XPContinuous Access Journal Volumes (continued)Can the Volumes BeUsed as Jour

Table 19 Whether Non-XP Continuous Access Journal Volumes Can Be Used as XPContinuous Access Journal Volumes (continued)Can the Volumes BeUsed as Jour

Journal primary data volume or secondary data volume, you must delete the pair first to return thevolume to SMPL status.When creating an XP Continuous

Table 20 (page 77) describes the host pair status reporting for XP Continuous Access Journalvolumes, XP Business Copy volumes, and XP Continuous Acces

Figure 24 Shared XP Continuous Access Journal Primary Data Volume and XP Business CopyP-VOL• XP Continuous Access Journal/XP Business Copy configurati

Figure 26 Shared XP Continuous Access Journal Primary Data Volume and XP Business CopyP-VOL, and XP Continuous Access Journal Secondary Data Volume an

1 Overview of HP StorageWorks XP Continuous AccessJournal SoftwareThis chapter provides an overview of HP StorageWorks XP Continuous Access Journal So

8. Execute the RAID Manager pairsplit -r command on the XP Business Copy pair to putthe pair in PSUS status (see Figure 35 (page 81)).9. Execute the R

Figure 32 Restoring an XP Business Copy P-VOL - Step 5Figure 33 Restoring an XP Business Copy P-VOL - Step 6Figure 34 Restoring an XP Business Copy P-

Figure 36 Restoring an XP Business Copy P-VOL - Step 9XP Continuous Access Synchronous (3DC Cascading Configuration)The XP24000/20000 Disk Array provi

Note that the 3DC cascading configuration of XP Continuous Access Journal and XP ContinuousAccess Synchronous is not available in the system that cons

Figure 38 Basic Behavior in a 3DC Cascading ConfigurationUse differential copy, in a 3DC cascading configuration, to resynchronize either a suspended

1. Install XP Continuous Access Synchronous and XP Continuous Access Journal. Configure theports and journal groups.2. Issue a request for creating an

Figure 39 3DC Multi-Target Configuration (Combining XP Continuous Access Journal with XPContinuous Access Synchronous)In this configuration, the prima

Multi-Target Configuration” (page 212) and “Changing to a 3DC Multi-Target Configuration AfterRecovering from Primary Site Failures” (page 93).If a fa

Access Journal pair for the delta resync operation. For details, see “Recovering fromPrimary Site Disaster in a 3DC Multi-Target Configuration” (page

8. Assign the remote command device to the mirror ID of the XP Continuous Access Journal pairfor the delta resync operation on the XP Continuous Acces

FeaturesXP Continuous Access Journal provides the following key features:• Heterogeneous Storage System SupportUsed with the storage system, XP Contin

• Status of the primary data volume is HOLD.• Using the volume of XP Continuous Access Synchronous pair as the primary data volume:If you use XP Conti

• When the secondary data volume is updated after splitting the XP Continuous Access Journalpair.• When, after splitting the XP Continuous Access Jour

Figure 40 Configuration of the Delta Resync Operation that utilizes Remote Command DevicesTo create above configuration, perform following operations:

If the Continuous Access Synchronous pair, the Continuous Access Journal pair, and the ContinuousAccess Journal pair for delta resync operation are al

Figure 42 Transferring Business Tasks from the XP Continuous Access Secondary Site to the PrimarySite (in a 3DC Cascading Configuration)Transferring B

Figure 43 Transferring Business Tasks from the XP Continuous Access Secondary Site to the PrimarySite (in a 3DC Multi-target Configuration)Transferrin

Table 22 XP Continuous Access Journal Pair Status Changes by Delta Resync OperationPair Status after Delta Resync OperationPair Status before Delta Re

Table 23 Pair Status and Operation after Recovery of the Primary SitePerform This Operation before Transferring BusinessTasks Back to the Primary Site

Figure 44 Transferring Business Tasks from the XP Continuous Access Secondary Site to the PrimarySite (When Delta Resync Operation Is Performed in 3DC

Figure 45 Recovering from Failures at the Primary Site and the XP Continuous Access SynchronousSecondary SiteTransferring Business Tasks from the XP C