Caché High Availability Guide - InterSystems Documentation

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List of FiguresShadowing Overview .......................................................................................................... 86Relationships of Shadow States and Permissible Actions .................................................. 95Cold Failover Configuration ............................................................................................. 102Warm Failover Configuration ........................................................................................... 103Hot Failover Configuration ............................................................................................... 104Cluster Shadowing Overview ........................................................................................... 127Example of Tru64 Cluster Configuration ......................................................................... 156Single Failover Cluster ..................................................................................................... 164Failover Cluster with Node Failure .................................................................................. 165IP Address Advanced Properties ....................................................................................... 169IP Address Parameter Properties ...................................................................................... 169Physical Disk Dependency Properties .............................................................................. 170Cluster Resource General Properties ................................................................................ 172Cluster Resource Dependencies Properties ...................................................................... 172Cluster Resource Advanced Properties ............................................................................. 173Cluster Resource Parameter Properties ............................................................................ 173Multiple Failover Cluster .................................................................................................. 174Multiple Failover Cluster with Node Failure .................................................................... 175viiiCaché High Availability Guide
List of TablesConditions Affecting Write Daemon Errors ........................................................................ 7Write Daemon Error Conditions ........................................................................................ 11Backup Task Descriptions .................................................................................................. 25Restore Actions ................................................................................................................... 32Values of backup_type ........................................................................................................ 41UNIX Backup Utilities and Commands ............................................................................. 43Journal Data Record Fields Displayed by ^JRNDUMP ..................................................... 69Journal File Command Type Codes .................................................................................... 70Functions Available in ^JRNUTIL ..................................................................................... 79Caché High Availability Guideix
Page 3 and 4: Table of ContentsIntroduction .....
Page 5 and 6: 3.3.5 Purge Journal Files .........
Page 7: 7.7 Startup Recovery Routine ......
Page 13 and 14: 1Write Image Journaling andRecovery
Page 15 and 16: RecoveryDue to the sequential natur
Page 17 and 18: Error Conditions1.2.1.3 Completes R
Page 19 and 20: Error Conditions1.3.2 Sample Recove
Page 21 and 22: Error Conditionsand then:ccontrol s
Page 23 and 24: Limitations of Write Image Journali
Page 25 and 26: 2Backup and RestoreThis chapter out
Page 27 and 28: Importance of JournalsDepending on
Page 29 and 30: unwieldy. The approach is to freeze
Page 31 and 32: 1. Quiesce (pause) the database (th
Page 33 and 34: • Advantages — Quicker than a f
Page 35 and 36: These are predefined backup tasks t
Page 37 and 38: Managing Caché Online BackupsYou c
Page 39 and 40: Managing Caché Online Backups2.5.4
Page 41 and 42: Restoring from a BackupCaché helps
Page 43 and 44: Restoring from a Backup1.USER>DO ^%
Page 45 and 46: 8. Specify the input file for the n
Page 47 and 48: Restoring from a Backup3) Restore S
Page 49 and 50: once the backup has been started. Y
Page 51 and 52: Caché Backup UtilitiesValues of ba
Page 53 and 54: UNIX Backup and RestoreUNIX Backup
Page 55 and 56: 2.9 OpenVMS Backup and RestoreThe f
Page 57 and 58: This privilege is required because
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processing. You back up the mirror
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JournalingWhen Caché starts, it re
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Journaling• Commit the transactio
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Journalingupgrade from a previous r
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Journaling3.3 Journaling Operation
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JournalingYou can also use the ^JRN
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JournalingEnter the appropriate men
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Journaling• Enter Yes at the prom
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Journaling6. The canonical form of
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JournalingJournal: c:\cachesys\mgr\
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JournalingFieldRemote system IDTime
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Journaling%SYS>Do SELECT^JRNDUMP("J
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JournalingIf the errors are from tr
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Journalingrecovered. This operation
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Journaling%SYS>d ^JCONVERTJournal C
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JournalingJournaling TaskDelete a r
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JournalingFreeze System on Journal
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4Shadow JournalingShadow journaling
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Configuring ShadowingThe fast trans
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Configuring Shadowing4.2.2 Configur
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Start ShadowingThe shadow definitio
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Configuring ShadowingArgumentpiddir
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Shadow ActionsThere are four allowa
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3. Click Resume to resume shadow pr
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5System Failover StrategiesCaché f
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Cold FailoverSome clients cannot af
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In this type of failover two or mor
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Hot FailoverIf a data server fails,
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Cluster Management• ECP Failover6
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Cluster Management• Caché Object
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Cluster ManagementIn a Caché clust
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Cluster ManagementIf you are doing
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Cluster ManagementUse Local Storage
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Cluster Management6.10 DCP and UDP
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Cluster JournalingIn addition to th
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Cluster Journaling7.2 Cluster Failo
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Cluster Journaling2. In between the
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Cluster JournalingThe other cluster
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Cluster JournalingThe following sec
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Cluster Journaling5. Next to Databa
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Cluster JournalingOnly one Caché c
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Cluster JournalingWhen you have ent
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Cluster JournalingBy default, the r
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Cluster JournalingSelection ( if no
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Cluster JournalingCluster Journal R
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Cluster Journaling7.5.1.4 Toggle th
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Cluster JournalingThe routine offer
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Cluster Journaling%SYS>Do ^STURECOV
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Cluster Journalingallows you to mod
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Cluster Journaling7.10 Shadow Infor
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Cluster Journaling^SYS("shdwcli","c
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8Caché Clusters on Tru64 UNIXAlpha
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8.2 TruCluster File System Architec
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cluster members. If there is a dire
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Tuning a Tru64 Caché Cluster Membe
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9Caché and Windows ClustersMicroso
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Single Failover ClusterFailover Clu
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Example ProceduresYou now have a fa
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Example ProceduresOnce finished, th
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[Memory and Startup] page of the Sy
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Example ProceduresCluster Resource
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• Instances CacheA and CacheB can
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2. Install Caché on CLUNODE-2 agai
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ECP FailoverA more complex case is
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ECP Failover• Network Is Interrup
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ECP Failover10.2.4.2 New Cluster Ma
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Caché High Availability Guide - InterSystems Documentation

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