HP StorageWorks XP12000 User manual

HP StorageWorks
Continuous Access XP user guide
for the XP12000/XP10000/SVS200
Part number: T1711-96012
Sixth edition: March 2007

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Contents
Aboutthisguide .......................... 9
Intendedaudience...................................... 9
Prerequisites ........................................ 9
Relateddocumentation.................................... 9
Documentconventionsandsymbols ............................. 10
HPtechnicalsupport.................................... 10
Subscriptionservice ..................................... 11
HPwebsites......................................... 11
Documentationfeedback ................................... 11
1ContinuousAccessXPfortheArray ................. 13
OverviewofContinuousAccessXPoperations......................... 13
Components ..................................... 14
Arrays...................................... 15
Mainandremotecontrolunits(MCUsandRCUs).................... 15
Volumepairs(P-VOLsandS-VOLs).......................... 16
ContinuousAccessXPAsynchronousconsistencygroups................. 17
Remotecopyconnections.............................. 17
InitiatorportsandRCUtargetports.......................... 18
CommandViewXPmanagementstationorXPRemoteWebConsole ........... 18
Hostfailoversoftware ............................... 19
Remotecopyoperations ................................ 19
Initialcopyoperations ............................... 19
Updatecopyoperations .............................. 20
ReadandwriteI/OoperationsforContinuousAccessXPvolumes ............ 20
Differencemanagement .............................. 21
S-VOLwriteoption................................. 23
ContinuousAccessXPAsynchronousrecordsetoperations .................. 23
CreatingandstoringrecordsetsattheMCU...................... 24
SendingrecordsetstotheRCU............................ 24
StoringrecordsetsattheRCU ............................ 24
SelectingandsettlingrecordsetsattheRCU...................... 24
Typesofrecordsets................................. 25
Inflowcontrolofrecordsets ............................. 25
ContinuousAccessXPAsynchronousconsistencygroupoperations .............. 26
Groupoptions................................... 26
Groupoperations ................................. 27
ContinuousAccessXPvolumepairstatus ......................... 27
ContinuousAccessXPLUSEpairstatus ........................ 28
ContinuousAccessXPAsynchronouspairstatus .................... 28
ContinuousAccessXPsplittypes(PSUS)........................ 30
ContinuousAccessXPsuspendtypes......................... 31
ContinuousAccessXPAsynchronoussuspensionconditions ............... 33
PreparingforContinuousAccessXPoperations......................... 34
Systemrequirements .................................. 34
Requirementsandrestrictions .............................. 34
One-to-onevolumecopyoperations ......................... 35
Logicalunit(LU)types ............................... 35
Consistencygroups ................................ 35
AccessingContinuousAccessXPP-VOLsandS-VOLs .................. 36
Cacheandnonvolatilestorage(NVS)......................... 36
Continuous Access XP user guide 3

Hostfailoversoftware ............................... 36
Duplicatevolumes................................. 36
Hostsystemcrash ................................. 36
Installinghardware .................................. 37
FibreChannelremotecopyconnections........................ 37
ConfiguringMCUsandRCUsforContinuousAccessXPoperations .............. 39
Fibre Channel configuration............................. 39
Combining Continuous Access XP with other data management operations . . . . . . . . . . . 41
CombiningContinuousAccessXPandBC....................... 45
CombiningContinuousAccessXPandLUNSecurityXPExtension............. 48
Copyingaccessattributes.............................. 48
LicensecapacityforLUNSecurityXPExtension..................... 51
CombiningContinuousAccessXPandVolumeManager ................ 52
CombiningContinuousAccessXPandCustomVolumeSize(CVS) ............ 52
CombiningContinuousAccessXPandCacheLUNXP.................. 52
CombiningContinuousAccessXPandLUNManager.................. 52
CombiningContinuousAccessXPandAutoLUNXP .................. 53
CombiningContinuousAccessXPandPerformanceControlXP.............. 54
StartingContinuousAccessXP................................ 54
ContinuousAccessXPpanes .............................. 54
ContinuousAccessXPmainpane(PairOperationpane)................... 57
Volumelist .................................... 57
DisplayFilterpane................................. 59
ContinuousAccessXPSnapshotfunction ....................... 60
Creating and exporting (downloading) Continuous Access XP snapshot files ........ 61
RCUOperationpane.................................. 61
CUNumbertreeandMCU/RCUlist ......................... 62
PorttreeandPortlist................................ 64
AsynchronousOperationpane.............................. 64
UsageMonitorpane.................................. 65
HistoryOperationspane ................................ 66
OtherOperationpane................................. 68
Changingsubsystemsettings ............................ 69
Performing Continuous Access XP configurationoperations.................... 70
MCUoperations.................................... 71
ConfiguringMCUports............................... 71
RCUoperations.................................... 71
ViewingRCUStatus(RCUStatus)........................... 72
RegisteringRCUs(AddRCU) ............................ 74
ModifyingRCUoptions(ChangeRCUOption)..................... 79
DeletingRCUs(DeleteRCU)............................. 80
RCUpathparameters ............................... 80
Adding and deleting logical paths for RCUs (Add Path/Delete Path) . . . . . . . . . . . . 81
AddinganddeletingSSIDsforRCUs(AddSSID/DeleteSSID) .............. 83
Portchangeoperation ............................... 84
Modifyingparametersanddeletingsettings...................... 85
ContinuousAccessXPAsynchronousoperations ...................... 85
Viewingconsistencygroupstatus(CTGroupStatus)................... 86
Addingconsistencygroups(AddCTGroup)...................... 88
Modifyingconsistencygroupoptions(CTGroupOption) ................ 89
Deletingconsistencygroups(DeleteCTGroup)..................... 90
Asynchronouscopyoption ............................. 91
Modifyingparametersanddeletingconsistencygroups ................. 92
UsageMonitoroperations ............................... 93
Startingandstoppingmonitoring .......................... 93
Displayingusagemonitorgraph........................... 94
OptimizingContinuousAccessXPoperationsanddiskarrayperformance ........... 97
DiscontinuingContinuousAccessXPoperations ...................... 98
PerformingContinuousAccessXPpairoperations...................... 99
CommonprocedureforContinuousAccessXPpairoperations ................ 100
4

Listaftercommandselection............................. 100
ModifyingparametersanddeletingLUs........................ 100
ViewingContinuousAccessXPpairstatusforLUsandLDEVs(Pairdisplay) ........... 101
CreatingContinuousAccessXPvolumepairs(Paircreate) .................. 103
Continuous Access XP initial copy and pair options of the Paircreate pane . . . . . . . . . 106
SplittingContinuousAccessXPpairs(Pairsplit-r) ...................... 107
ResumingContinuousAccessXPvolumepairs(Pairresync).................. 110
Index .............................. 113
Continuous Access XP user guide 5

Figures
1..ContinuousAccessXPcomponentsforFibreChannelconnections ........... 15
2..Remotecopyoperations............................. 19
3..Selecting andsettlingContinuousAccessXPAsyncrecordsetsattheRCU........ 25
4..FibreChannelremotecopyconnections ...................... 38
5..Directconnection................................ 38
6..Switchconnection ............................... 39
7..Extenderconnection .............................. 39
8..AddRCUpane ................................ 40
9..RCUOptionpane ............................... 40
10 ..AsyncOptionpane............................... 41
11 ..AddCTGrouppane .............................. 41
12 ..SharedContinuousAccessXPP-VOL/BusinessCopyXPP-VOL ............ 47
13 ..SharedContinuousAccessXPS-VOL/BusinessCopyXPP-VOL ............ 47
14 ..Shared Continuous Access XP/BC P-VOL with shared Continuous Access XP S-VOL/BC P-VOL 47
15 ..SharedBusinessCopyXPS-VOL/ContinuousAccessXPP-VOL ............ 48
16 ..Copyingaccessattributes ............................ 50
17 ..ContinuousAccessXPmainpane......................... 54
18 ..Volumelist(partialview)............................. 58
19 ..DisplayFilterpane ............................... 60
20 ..RCUOperationpane.............................. 62
21 ..RCUOperationpanewiththeMCU&RCUoptionbuttonselected ........... 63
22 ..RCUOperationpanewiththePortoptionbuttonselected............... 64
23 ..AsynchronousOperationpane.......................... 64
24 ..UsageMonitorpane .............................. 66
25 ..HistoryOperationspane ............................ 67
26 ..OtherOperationpane ............................. 68
27 ..OptionSettingsListforthesubsystemandthepop-upmenu.............. 69
28 ..SystemOptionpane .............................. 70
29 ..RCUStatuspane................................ 73
30 ..AddRCUpane ................................ 75
31 ..RCUOptionpane ............................... 76
32 ..RCUSettingsParameterlist............................ 78
33 ..RCUOptionpane ............................... 79
34 ..RCUSettingsParameterlist(RCUOption) ..................... 79
35 ..FibreChannelinterfaceconnectionsgoingthroughswitches.............. 80
36 ..Add RCU pane used for configuration in the previous figure.............. 81
37 ..AddPathpane................................. 81
38 ..AddSSIDpane ................................ 83
39 ..Changingporttypes .............................. 84
40 ..CTGroupStatuspane.............................. 87
41 ..AddCTGrouppane .............................. 88
42 ..CTGroupOptionpane............................. 89
43 ..ConsistencyGroupSettingsParameterlist ..................... 90
6

44 ..AsyncOptionpane............................... 91
45 ..AsynchronousOptionSettingsParameterlist .................... 92
46 ..Display Item pane ............................... 95
47 ..Pairdisplaypane................................ 101
48 ..Paircreate(Synchronous)pane .......................... 103
49 ..Paircreate(Asynchronous)pane.......................... 103
50 ..PairSettingsParameterlist(Paircreate)....................... 105
51 ..Pairsplit-rpane................................. 108
52 ..PairSettingsParameterlist(Pairsplit-r) ....................... 110
53 ..Pairresyncpane ................................ 111
Continuous Access XP user guide 7

Tables
1..Documentconventions.............................. 10
2..RAID-level configurationsforContinuousAccessXP ................. 15
3..Continuous Access XP supported RAID level configurations.............. 17
4..Max. numb. of pairs accord. to ea. emul. type, when pairs are created without cust. vol. . 22
5..Unitforstoringthedifferentialdata ........................ 22
6..Sidefilethresh.vals.forCXPAsynch.ops.andwritependingops. .......... 26
7..Continuous AccessXPAsynchronouspairstatusdescriptions ............. 28
8..ContinuousAccessXPsplittypes(PSUS)...................... 31
9..Consistency status descriptions for split/suspended Continuous Access XP Async S-VOLs . 31
10 ..ContinuousAccessXPsuspendtypes ....................... 32
11 ..ContinuousAccessXPAsynchronoussuspensionconditions.............. 33
12 ..Combining CA XP Sync and CA XP Async functions with other products in arrays . . . . 42
13 ..Host pair status reporting for CA XP, BC, and CA XP/BC shared vols. . . . . . . . . . 46
14 ..DatacurrencyofasharedContinuousAccessXP/BCvolume............. 46
15 ..Access attribute and availability as a Continuous Access XP pair volume . . . . . . . . 48
16 ..VMAsettingandavailabilityofPaircreateoperation................. 49
17 ..PairstatusandavailabilityforLUNSecurityXPExtensionoperations.......... 51
18 ..Variable access attribute (pair status of Continuous Access XP P-VOL is PAIR or COPY) . . 51
19 ..ContinuousAccessXPfunctions.......................... 56
20 ..VolumeiconsforContinuousAccessXPoperations ................. 58
21 ..StatusiconsforContinuousAccessXPoperations .................. 58
22 ..Snapshotfunctions ............................... 61
23 ..Logicalpathstatus ............................... 74
24 ..Initialcopypaceforcalculatinginitialcopyresponsetime .............. 77
25 ..Examplesettings................................ 77
26 ..RemotecopyI/Ostatistics............................ 96
27 ..Disk arrayperformanceconditionsandrecommendations .............. 98
8

About this guide
This guide provides information about:
•preparing for Continuous Access XP operations
•starting Continuous Access XP
•performing Continuous Access XP configuration operations
•performing Continuous Access XP disaster recovery operations
•understanding error codes and messages
•performing pinned track recovery for Continuous Access XP volumes
Intended audience
This guide is intended for customers and HP-authorized service providers with knowledge of:
•Disk array hardware and software
•Data processing and RAID storage subsystems and their basic functions
NOTE:
The functions described in this manual may be limited, depending on your assigned level of user access.
Some users will have read-only access while others will have limited or full array access. For additional
information on users and user groups, please see the HP StorageWorks XP Remote Web Console user
guide.
Prerequisites
Prerequisites for installing this product include:
•Installation of the HP StorageWorks disk array(s)
•Installation of the license key for this product
Related documentation
The following documents provide related information:
•HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000
•HP StorageWorks Auto LUN XP user guide for the XP12000/XP10000
•HP StorageWorks Business Copy XP user guide for the XP12000/XP10000
•HP StorageWorks Cache LUN XP user guid e for the XP12000/XP10000
•HP StorageWorks External Storage XP user guide
•HP StorageWorks LUN Configuration and Security Manager XP user guide for the
XP12000/XP10000
•HP StorageWorks LUN Security XP Extension user guide
•HP StorageWorks Performance Control user guide
•HP StorageWorks XP Disk/Cache Partition user guide
You can find these documents from the Manuals page of the HP Business Support Center website:
http://www.hp.com/support/manuals
Continuous Access XP user guide 9

In the Storage section, click Storage Software and then select your product.
Document conventions and symbols
Table 1 Document conventions
Convention Element
Blue text: Table 1 Cross-reference links and e-mail addresses
Blue, underlined text: http://www.hp.com website addresses
Bold text •Keys that are pressed
•Text typed into a GUI element, such as a box
•GUI elements that are clicked or selected, such as
menu and list items, buttons, tabs, and check boxes
Italic text Text emphasis
Monospace text •File and directory names
•System output
•Code
•Commands, their arguments, and argument values
Monospace, italic text •Code variables
•Command variables
Monospace, bold text Emphasized monospace text
CAUTION:
Indicates that failure to follow directions could result in damage to equipment or data.
IMPORTANT:
Provides clarifying information or specific instructions.
NOTE:
Provides additional information.
TIP:
Provides helpful hints and shortcuts.
HP technical support
For worldwide technical support information, see the HP support website:
http://www.hp.com/support
Before contacting HP, collect the following information:
•Product model names and numbers
•Technical support registration number (if applicable)
•Product serial numbers
•Error messages
10 About this guide