Sun Microsystems 3 - Manual

Preface vii Shell Prompts Related Documentation Shell Prompt C shell machine_name % C shell superuser machine_name # Bourne shell and Korn shell $ Bourne shell and Korn shell superuser # Application Title Part Number man pages sndradm scmadm svadm iiadm N/A Latest information Sun StorEdge Network Da...

Preface ix Accessing Sun Documentation Online A broad selection of Sun system documentation is located at: http://www.sun.com/products-n-solutions/hardware/docs A complete set of Solaris documentation and many other titles are located at: http://docs.sun.com For the latest version of released storag...

1 C H A P T E R 1 Overview Caution – Do not install or use the Sun StorEdge Version 3.0 Core and data services software on servers in a Sun Cluster 3.0 environment. The Version 3.0 software isnot co-existent with the Sun Cluster 3.0 environment. The Version 3.0 software is co-existent in the Sun Clu...

2 Sun StorEdge Network Data Replicator 3.0 Configuration Guide • June 2001 The replication mode can be synchronous or asynchronous based as a user-selectableparameter for each Sun SNDR volume set. (Use the sndradm enable command and select the sync or async parameter Use the sndradm -R m command to ...

Chapter 1 Overview 3 ■ One-to-many and multihop volume sets — The Sun SNDR software enables you to create one-to-many and multihop volume sets. In a one-to-many volume set,you can replicate data from one primary volume to many secondary volumesresiding on one or more hosts. In a multihop set, the se...

4 Sun StorEdge Network Data Replicator 3.0 Configuration Guide • June 2001 Network Multipathing Network multipathing with failover is supported on hosts running the Solaris 8,Update 3 operating environment. This feature is provided as part of the standardSolaris operating environment and is transpar...

Chapter 1 Overview 5 Applications The Sun SNDR software provides protection of critical enterprise information. Thefollowing information types are candidates for remote replication: ■ Database partitions and logs ■ Data that is important for business continuance in a disaster situation The Sun SNDR ...

7 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 oronline DBMS log) ■ Access control files You can exclude volumes...

8 Sun StorEdge Network Data Replicator 3.0 Configuration Guide • June 2001 Choosing Volume Level Protection In general, customers should protect their data with some level of RAID. With theSun SNDR software, the primary volumes can be protected by any software orhardware RAID level desired. The prot...

Chapter 2 Configuration Considerations 9 If your server is configured in a clustered environment, set the bitmap mode to 1. Ifyour server is not configured in a clustered environment, you can also choose thebitmap mode setting of 1 to improve error or disaster recovery. Choosing a Connection Medium ...

14 Sun StorEdge Network Data Replicator 3.0 Configuration Guide • June 2001 Recovery Considerations The Sun StorEdge Network Data Replicator 3.0 System Administrator’s Guide containsinformation about various recovery scenarios. This section describes the followingtopics: ■ Failing Over to the Second...

Chapter 2 Configuration Considerations 15 Choosing the Resynchronization Type: Update or Full Tip – If a synchronization initiated by the sndradm -m or sndradm -m -r commands is interrupted, use the sndradm -m -u update command to complete the synchronization. Use /usr/opt/SUNWscm/sbin/scmadm -S to ...