Business Copy XP and/or Continuous Access XP for HPe3000

ManualsBrandsHP ManualsSoftwareMPE/iX 7.0 Operating System

SureStore E Disk Array XP256 / XP512

Business Copy XP and/or

Continuous Access XP

in an HP e3000 Environment

This paper describes the usage and procedures used to successfully implement Business

Copy and/or Continuous Access in an HP e3000 environment.

White Paper by

Walter McCullough

November 18, 2000

Product Description Business Copy XP

Business Copy is an XP256/XP512 feature that allows for copy on demand of selected disk volumes.

These volumes should be grouped as User Volumes, an MPE/iX term. These copied disks can then be

split off from their masters and presented to another HP e3000 machine for offloading operations such

as backup or application testing.

Business Copy volumes are created by the HP storage specialist through the SVP and managed from

the internal XP256/XP512 PC or from a PC configured as the Remote Control PC or through an

instance of the RAID Manager XP executing under MPE/iX.

Continuous Access XP

Continuous Access is the feature that allows the XP256 to continuously maintain a copy of a selected

number of disk volumes on another XP256/XP512 disk cabinet, located locally or remotely.

This feature is somewhat similar to Business Copy in that offloading backup operations or application

testing can be performed. The added value is that the user can use this feature to maintain a complete

working set of data that could be used on the remote computer in the event of a catastrophic site outage

at the primary location.

white

HP e3000

HP e3000 Business Servers

Business Copy XP

Summary of content (10 pages)

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white paper HP e3000 Business Servers Business Copy XP SureStore E Disk Array XP256 / XP512 Business Copy XP and/or Continuous Access XP in an HP e3000 Environment This paper describes the usage and procedures used to successfully implement Business Copy and/or Continuous Access in an HP e3000 environment. White Paper by Walter McCullough November 18, 2000 Product Description Business Copy XP Business Copy is an XP256/XP512 feature that allows for copy on demand of selected disk volumes.
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Environment Business Copy and Continuous Access is supported on MPE/iX release 5.5 with PPT07 and patch MPEKXL9 and MPEKXT8. It is also supported on MPE/iX release 6.0 with patch MPEKXL9 and MPEKXT8. RAID Manager XP is supported on 6.5 post express 2. For more information on patches and versions, please contact your support engineer. Basic Operation Business Copy and Continuous Access have virtually the same procedures for setup. System A will “own” data located on a primary user volume set.
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(MPE/iX Prompt):dstat all LDEV-TYPE STATUS ----------------60-OPEN-3 UNKNOWN 61-OPEN-3 UNKNOWN 62-OPEN-3 UNKNOWN VOLUME (VOLUME SET - GEN) -------------------------- (MPE/iX Prompt): 2. Now create the User Volume Set that will be used to offload processing. The volume set name for this example will be PRODUCTION_DATA. Use the VOLUTIL utility program to create the user volume set named PRODUCTION_DATA. Once the volume set is created, VSCLOSE and then VSOPEN the volume set before proceeding onward. 3.
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BULDACCT To access those files on the Business Copy volumes you must first create the accounts and groups on System B, that reference the directory structure located on the user volume. Re-issue the NEWACCT and NEWGROUP commands on System B or using BULDACCT to create a job stream that will create the directory for you. 1. Execute the buldacct utility program and for this example three accounts exist on the PRODUCTION_DATA volume set. SALESDB, ORDERDB and STOCKDB. :RUN BULDACCT.PUB.
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(After the split you may VSOPEN the PRODUCTION_DATA volume set on System A and continue operations) On System B After the primary volumes have been split from the Business Copy you can issue the VSOPEN PRODUCTION_DATA command on System B and start operations. When operations are completed, VSCLOSE PRODUCTION_DATA;NOW and from the Remote Control PC re-establish the primary and Business Copy mode. There is no need to log off users from System A to re-establish Business Copy.
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#!/usr/bin/ksh # UNISRC_ID @(#)pairs_control: $Revision: 1.
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#CAN_DIFF_RESTORE=${CAN_DIFF_RESTORE}" } create_pairs () { # Create Business Copy pairs date echo "Creating Business Copy pairs for group $GROUP" # Check status of volumes to be paired. Must be in SIMPLEX state. pairevtwait -g $GROUP $MEMBER -nowait -nomsg RETURN="$?" if [ $RETURN -ne $RC_SIMPLEX ] then echo "Error: Pairs $GROUP are not in SIMPLEX state. Cannot initiate copy." pairevtwait -g $GROUP $MEMBER -nowait echo "Return code was: ${RETURN}.
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fi done echo echo "Split has completed. We may now resume processing on source volumes." echo } delete_pairs () { # Split Business Copy pairs date echo "Deleting pairing of volumes for group $GROUP. " # Checking for required state of SPLIT (guarentees syncing) pairevtwait -g $GROUP $MEMBER -nowait -nomsg RETURN="$?" if [ $RETURN -ne $RC_SPLIT ] then echo "Error: Pairs $GROUP are not in PSUS state.
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exit 10 fi done echo echo "Syncronization completed." } restore_pairs_diff () { # Restore volumes by making remote volume the source or P-VOL if [ $CAN_DIFF_RESTORE -ne 1 ] then echo "Insufficient microcode or RAIDMgr version for differential restore!" exit 15 fi date echo "Creating Business Copy (restore) pairs for group $GROUP" # Check status of volumes to be paired. Must be in SUSP/SPLIT state.
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echo "Waiting for pairs to transition to PAIRED state." RESULT=-1 while [ "$RESULT" -ne "$RC_COMPLETE" ] do pairevtwait -g $GROUP $MEMBER -s pair -nomsg -t $SHORTTIMEOUT RESULT=$? let COUNTER=$COUNTER+$SHORTTIMEOUT if [ "$COUNTER" -ge "$MASTERTIMEOUT" ] then echo "Error: Timeout while waiting for pair $GROUP to transition to PAIRED state" pairevtwait -g $GROUP $MEMBER -nowait exit 12 fi done echo "Volumes in group $GROUP synced.