Sun Microsystems 3 manual Configuration Considerations, Volumes Eligible for Replication

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C H A P T E R 2

Configuration Considerations

Volumes Eligible for Replication

Generally, include the following critical volumes in the Sun SNDR configuration:

Database and database management system (DBMS) logs (the total database or online DBMS log)

Access control files

You can exclude volumes from the Sun SNDR software configuration if they can be reconstructed at the recovery site or if they seldom change:

Temporary volumes (such as those used in sort operations)

Spool files

Paging volumes

When selecting a volume to be used in the Sun SNDR software volume set, ensure that volume does not contain disk label private areas (for example, slice 2 on a Solaris operating environment-formatted volume). The disk label region is contained in the first sectors of cylinder 0 of a disk. The safest method is to ensure that cylinder 0 is not part of any logical volume that is replicated (except for volumes under Veritas Volume Manager control, where cylinder 0 can be part of a logical volume that is replicated).

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Contents Sun StorEdge Network Data Replicator Configuration Guide Please Recycle Contents Page Before You Read This Book PrefaceDocumentation Conventions Using Unix CommandsRelated Documentation Shell PromptsApplication Title Part Number Sun Welcomes Your Comments Accessing Sun Documentation OnlineOrdering Sun Documentation Page Sun Sndr Software Description OverviewPage TCP/IP Connection Hardware Components Supported Hardware and SoftwareNetwork Multipathing Architecture ApplicationsSdbc Volumes Eligible for Replication Configuration ConsiderationsChoosing Volume Level Protection Bitmap Volumes for Scoreboard LogsATM Link Advantages Choosing a Connection Medium to Link My SitesLink Security Configuring Redundant Links Between SitesChoosing Between Synchronous and Asynchronous Replication Configuring The Sun Sndr Software for Mutual Replication When To Suspend Replication to the Secondary SiteSync Order-Dependent Writes and Volume Set GroupingFailing Over to the Secondary Site Recovery ConsiderationsRecovering the Primary or Secondary Site Choosing the Resynchronization Type Update or Full Using The Sun Sndr and Sun StorEdge Instant Image Software Sun Sndr Software and Sun StorEdge Fast Write Cache Software Dev/rdsk/c0t0d0s9 One-to-Many and Multihop Volume SetsUsing The Sun Sndr Software in a Firewall Environment
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