Hp XP Business Copy Software Bedienungsanleitung

HP StorageWorksXP Business Copy User GuideHP XP12000 Disk ArraynlHP XP10000 Disk ArraynlHP 200 Storage Virtualization SystemAbstractThis guide provide

• BC software on the Command View XP management stationFigure 1 BC overview.Use BC from the Command View XP management station or XP Remote Web Consol

or mirrored volumes containing backup data. Each S-VOL must be paired with only one P-VOL. DuringBC operations, P-VOLs remain available to all hosts f

Cascade pairsThe BC cascade function adds a second layer of pairs onto the first layer of original BC pairs. Usethese two layers of pairs (L1 and L2)

RequirementParameterA maximum of 8,192 pairs (8,192 P-VOLs and 8,192 S-VOLs) can be created perdisk array.NOTE:The maximum number of pairs equals the

RequirementParameterUnder certain conditions, BC volume pairs may need to be re-established.Maintenance/up-grade1Maximum number of pairs per disk arra

If only BC uses differential tables, the following section describes how to calculate the number ofdifferential tables required for one BC pair, and t

EquationEmulation typeTotal number of differential tables per pair = (X ÷ 256) ÷ (Z)•(X): Volume capacity (KB)2• (Z): Number of slots that can be mana

Differential tables perpairCapacity1Emulation type5Up to 13.5GB1333.9GBOPEN-LSee Table 5OPEN-V11 GB = 10243BytesTable 5 Number of differential tables

Differen-tialtablesCapacity1Differen-tialtablesCapacity1Differen-tialtablesCapacity187Up to 1,302.2GB55Up to 823.2GB23Up to 344.2GB88Up to 1,317.2GB56

Differen-tialtablesCapacity1Differen-tialtablesCapacity1Differen-tialtablesCapacity1182Up to 2,724.3GB149Up to 2,230.3GB116Up to 1,736.3GB183Up to 2,7

Legal and notice information© Copyright 1999, 2010 Hewlett-Packard Development Company, L.P.Confidential computer software. Valid license from HP requ

Since 3,870 is less than 13,652, 10 pairs of OPEN-3 volumes and 20 pairs of OPEN-V volumes canbe created.NOTE:When the emulation type is OPEN-3, and t

NOTE:BC leaf volumes (L2 cascade pair) also function as S-VOLs and must be reserved prior to beingassigned to an L2 cascade pair.Reset reserve attribu

Figure 2 Adding a pair in BC.Update copy operationThis operation updates the S-VOL of a BC pair after the initial copy operation is complete. Since aP

NOTE:• Update copy operations are not performed for pairs with the following status: COPY(PD) (pendingduplex), COPY(SP) (steady split pending), PSUS(S

While the pair is split, the disk array establishes a track map for the split P-VOL and S-VOL, andrecords a list of the changed tracks for both volume

• Normal. This operation (see Figure 4) resynchronizes the S-VOL with the P-VOL. The copy directionfor a normal pairresync operation is P-VOL to S-VOL

the requirements, the reverse copy or quick restore command is rejected. The pair status duringa reverse resync operation is COPY(RS-R), and the P-VOL

NOTE:The P-VOL remains read-enabled during the quick restore operation only to enable the host torecognize the volume. Data on the P-VOL is not guaran

Table 6 shows the requirements for reverse and quick restore pairresync operations. If you performthese operations on pairs that do not fulfill the re

Figure 6 BC P-VOL forming pair with Continuous Access XP S-VOL and external S-VOL, respectively.Figure 7 BC P-VOL forming pair with external S-VOL and

Contents1 Business Copy XP (BC) for the Array ... 9Overview of BC operations ...

Use the Pairresync window to resynchronize split and suspended BC pairs. When the pairresyncoperation starts, the pair status changes to COPY(RS) or C

changes the status of the P-VOL and S-VOL to SMPL, accepts all subsequent write I/Os to the S-VOL, and does not keep track of updates.• When the disk

operation is performed without the Swap&Freeze option, the P-VOL and S-VOL are resynchronizedwhen update copy operations are performed for pairs i

Every volume can have up to three Mirror Unit (MU) numbers associated with it. The MU numberdesignates a pair for which the volume is a member. The MU

• The root volume is the P-VOL of the L1 pair, which is the original BC pair. You can add up to threeS-VOLs (node volumes) to a root volume.• The node

L2 Pair OperationsL1 PairStatusPairsplit-SPairsplit-EReverse/ Quick Re-storePairre-syncPairsplitPaircre-ateOKOKNO(CMD RJT)OKNO(CMD RJT)OKPSUETable 9 s

L2 Pair StatusL1 PairStatusPSUECOPY(RS)PSUS(SP)/PSUSCOPY(SP)PAIRCOPY(PD)Read OnlyRead OnlyRead OnlyRead OnlyRead OnlyRead OnlyPAIRRead OnlyRead OnlyRe

When the At-Time Split function is enabled, data in all P-VOLs in the same consistency group is copiedto the corresponding S-VOLs when the disk array

NOTE:• You can perform BC pair operations (see Performing BC operations) from the Command View XPmanagement station or XP Remote Web Console on the BC

Figure 14 BC pair status transitions.The following describes BC pair status conditions:1. If a volume is not assigned to a BC pair, its status is SMPL

S-Vol Path window ... 62Display Filter window ...

4. The following are the types of pair status (PSUS and PSUE) when the pair is not synchronized:• When you split a pair (pairsplit), the pair status c

5. When you start a pairresync operation, the pair status changes to COPY(RS) or COPY(RS-R).When the pairresync operation is complete, the pair status

Cautions on switching off the power supplyTo switch off the power supply of the disk array during BC operations, make sure to:• Complete copying for t

For more information about specifying the copy pace, see Copy Pace list. For more informationabout the Host I/O Performance option, see Host I/O Perfo

Assoc.L2 P-VOLL2 S-VOLAssoc. L2S-VOLsL2 P-VOLAssoc.L1 P-VOLL1 S-VOLAssoc. L1S-VOLsL1 P-VOLTID:LUNPortCUetc.—No3A-0:00,3A-0:01Yes1A-0:00Yes—No0:001B0—N

• Continuous Access XP Journal. Continuous Access XP Journal volumes can be assigned to BCpairs, and BC volumes can be assigned to Continuous Access X

Figure 15 BC and Continuous Access XP: Shared P-VOL/P-VOL.The configuration shown in Figure 16 is an example of a volume functioning as both a Continu

Figure 17 BC and Continuous Access XP: Shared P-VOL/P-VOL and P-VOL/S-VOL.The configuration shown in Figure 18 is an example of a volume functioning a

Figure 19 BC, Continuous Access XP Journal, and Continuous Access XP: Shared S-VOL/P-VOL/S-VOL.Figure 20 is an example of a volume functioning as both

Figure 21 BC and Continuous Access XP Journal: Shared P-VOL/P-VOL.The configuration shown in Figure 22 is an example of a volume that functions as bot

FiguresBC overview ... 101Adding a pair in BC

Figure 23 BC and Continuous Access XP Journal: Shared P-VOL/P-VOL and P-VOL/S-VOL.The configuration shown in Figure 24 is an example of a volume that

Combining BC with LUN Security XP ExtensionBC can create pairs using volumes for which LUN Security XP Extension sets the access attribute.However, yo

Copying access attributesIf you create a BC pair using volumes that LUN Security XP Extension has set to VMA (VolumeManagement Area), you can copy inf

access attribute. When the pair status is PAIR, copied access attribute information is not effective, sothe S-VOL's access attribute is still Rea

LUN Security XP ExtensionPair statusVolumeOK1, 2NoCOPY (RS)OK1, 2NoCOPY (RS-R)OK1, 2NoPSUEOKOK-Reservevolume1If the VMA copy is not completed, referre

node and leaf volumes. If you set the access attribute to the root, node, or leaf volume, LUN SecurityXP Extension requires license capacity for the r

NOTE:The Snapshot XP tab appears only when Snapshot XP is installed. Although the BC main screendisplays information about BC and Snapshot XP pairs, t

LDEV statusIconL2 pairS-VOL (node volume: Secondary, Leaf volume: Leaf)Reserved volumeAn error occurred during operations. This error icon is displaye

• Use the Display Filter button to filter volumes displayed in the Volume list.• The Previous button returns to the previous page of the Volume list.

NOTE:An LDEV number ending with # (for example, 00:01#) indicates the LDEV is an external volume.• MU: MU number of a BC cascade pair formed with the

Detail window ... 6129S-Vol Path window ...

Displayed InformationPair StatusThe copy pace (Slower, Medium, or Faster) for the pair beingcreatedCOPY(PD)- - - is displayed.PAIRThe copy pace (Slowe

Pair statusOperationPSUECOPY(RS-R)COPY(RS)PSUSPSUS(SP)COPY(SP)PAIRCOPY(PD)SMPLNoNoNoNoNoNoYesYesYesPairsplitYesNoNoYesYesNoNoNoNoPairresyncNoYesYesYes

S-Vol Path windowThis window displays information on the selected pair (all paths defined for the S-VOL). To open theS-Vol Path window, select one or

Figure 31 Display Filter window (BC tab selected).The Display Filter window (BC tab selected) has the following features:• CLPR: Displays the specifie

• Pair Status:• BC: Displays or hides BC pairs.• Snapshot XP: Displays or hides Snapshot XP pairs.NOTE:If a check box is not selected, all check boxes

• MU: MU number of a BC cascade pair member volume. For more information about what appearsif you select Snapshot XP pairs, see the HP StorageWorks Sn

The Set Reserve Attribute window displays unreserved volumes selected on the BC main screen.Clicking OK sets the reserve attribute for unreserved volu

Figure 34 Reset Reserve Attribute window.The Reset Reserve Attribute window displays the reserved volumes selected on the BC main screen.Clicking OK r

volumes or PSUS pairs in the Volume list on the BC main screen, right-click the selected volumes, andselect Paircreate.Figure 35 Paircreate window.The

NOTE:An LDEV number ending with # (for example, 00:01#) indicates the LDEV is an external volume.• MU: MU number of the P-VOL.• Status: Status of the

TablesBC operational requirements for the array ... 121Total number of differential tab

• External Vol: Select available S-VOLs that are external volumes.NOTE:You can select external volumes only when External Storage XP is available.• At

• Cancel: Cancels the operations set in the Paircreate window and closes the Paircreate window.To remove any volumes from the Paircreate Volume List o

CAUTION:The L2 paircreate operation overwrites all existing data on the L2 S-VOLs. You are responsible forbacking up the data on the S-VOLs before cre

Figure 36 Pairsplit window.The Pairsplit window consists of the following components:• Pairsplit Volume List• Window options• Select S-Vol box• Button

NOTE:An LDEV number ending with # (for example, 00:01#) indicates the LDEV is an external volume.• Type: Emulation type of the P-VOL and S-VOL• Capaci

NOTE:The number of secondary volumes that can be displayed in the S-VOL List at one time is limited to1,024. If the number of volumes defined in the d

Splitting pairs1. If you want the split S-VOLs to be identical to the P-VOLs, stop all write operations to the P-VOLsbefore splitting the pairs. This

4. Set the copy pace (Slower, Medium, or Faster) and split type (Quick or Steady) for all pairs beingcreated and split.5. Specify the S-VOLs as follow

Figure 37 Pairresync window.The Pairresync window consists of the following components.Pairresync Volume ListThe Volume List located on the upper side

Window options• Use the Resync Type list to select the pairresync type for pairs being resynchronized (Normal Copy,Quick Resync, Reverse Copy, or Quic

8

4. In the Pairresync window, select the pairs, and set the copy pace (Slower, Medium, or Faster)and resync type (Normal Copy, Quick Resync, Reverse Co

Suspending BC pairs (Pairsplit-E)The Pairsplit-E window displays pair information for pairs selected on the BC main screen. Use thePairsplit-E window

SMPL and PSUS(SP) pairs) in the Volume list on the BC main screen, right-click the selected pairs, andselect Pairsplit-S.Figure 39 Pairsplit-S window.

Viewing BC pair status and historyThe History pane displays current BC pair status information and BC pair history information for theselected port. T

• Snapshot XP pairs• ShadowImage for z/OS pairs• Hitachi FlashCopy Mirroring pairs• Auto LUN XP pairs• Flex Copy XP pairsEven if the total number of p

DescriptionMessageCodeMultiple copies ended abnormally. This referencecode is reported at a five-minute interval (one reportper five minutes). If a pa

BC error codesBC displays error messages when error conditions occur during BC operations. The BC Error windowdisplays the BC error code and message.

Corrective ActionDescriptionError CodeEnsure that the capacity of the P-VOL andS-VOL is the same.A pair cannot be created because a number ofslots is

Corrective ActionDescriptionError CodeCall HP technical support for assistance.Logical contradiction.1003Call HP technical support for assistance.Logi

Corrective ActionDescriptionError CodeRetry after refreshing the screen.The specified P-VOL number does not exist.1030Check pair status.The specified

1 Business Copy XP (BC) for the ArrayHP StorageWorks Business Copy XP (BC) maintains internal copies of user data on disk arrays forpurposes such as d

Corrective ActionDescriptionError CodeCheck the pair status.The specified P-VOL and S-VOL are not a BCpair.1050Retry after refreshing the screen.The v

Troubleshooting When Using XP RAID ManagerWhen an error has occurred in XP Business Copy Software pair operation using XP RAID Manager,you might ident

Business Copy XP (BC) for the Array92

2 Support and Other ResourcesRelated documentationThe following documents provide related information:• HP StorageWorks Command View XP user guide for

HP websitesFor additional information, see the following HP websites:• http://www.hp.com• http://www.hp.com/go/storage• http://www.hp.com/support/manu

IndexAaccess attributescopying, 52license capacity, 54setting with LUN Security XP Extension,At-Time Split function, 36attributescopying, 52license ca

Ffailures, 13features, 9forward pairresync operation, 24Hhelpobtaining, 93History pane, 83host I/O performance, 32, 42, 43HPtechnical support,II/O per

pairresync operationabout, 24pair status, 35split pairs, 30suspended pairs, 30using, 77Pairresync Volume List, 78Pairresync window, 77pairsAt-Time Spl

S-VOLsAt-Time Split function,backward pairresync operation, 25cascade function, 32Continuous Access XP, 45Continuous Access XP Journal, 48creating and