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Chapter 5 Installation and Setting of NEC Storage ReplicationControl SQL Option
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The database is designed and constructed as a Replication Volume of the database to which the NEC
Storage ReplicationControl SQL Option is applied. For details, refer to the "NEC Storage Manager
Data Replication User's Manual (Installation and Operation Guide for Windows)".
Note that the types and configurations of available volumes are defined.
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Other than creating a Replication Volume, the database is constructed in the same way as that for the
usual Microsoft SQL Server 2000. For details, refer to the Microsoft SQL Server 2000 Books Online.
For information on construction, refer to Appendix A "Notes".
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The NEC Storage ReplicationControl SQL Option uses metafiles to control the snapshot.
It is necessary to provide a metafile for each backup. Metafiles are allocated to a different volume from
the volume to which the database is allocated.
In accordance with the description in Section 4.3, the volume for metafiles is provided. Depending on
the allocation of metafiles, the database is constructed as follows.
When allocating to a shared disk
Set for a shared disk by setting the network computer. Multiple metafiles can be allocated to a
volume.
It is unnecessary to be targeted by DDR and RDR.
When allocating to MV
Used when a shared disk cannot be used for network reasons. Allocate an MV for each database.
This volume is created in the same way as normal volumes other than the database.
When allocating to a local disk
When used as a disk backup, a local disk is sufficient for metafiles. It is all right to allocate
multiple metafiles to a volume. For this configuration, the preparation of the volume only assigns
a disk.
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When many databases are to be operated simultaneously, it is necessary to change the Microsoft SQL
Server 2000 settings in advance. If the settings are not appropriate, when the NEC Storage
ReplicationControl SQL Option function is executed, an error occurs resulting in an abnormal end.
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