HP StorageWorks 6105 Virtual Library System AF728A 전단

 

Figure 2. Data types suitable for data protection using the HP StorageWorks 6000 Virtual Library System 

 

 
As can be seen in Figure 2, “slow” data sources, such as file/print data or small web server files are 
best backed up to virtual tape before being transferred (if necessary) to physical tape. Exchange 
server backup is often also slow because of the Exchange database access API, so it may also be 
advantageous (performance wise) to back up small distributed email servers to separate virtual tape 
drives—thus reducing the overall backup window for the total number of email servers in a SAN 
environment. The diagram shows database files being backed up directly to physical tape because 
these files are generally large in size and held on higher performance disk arrays, which means they 
can keep higher performance tape drives streaming. HP advocates direct backup to tape for these 
fast, large-volume data transfers. However, the small transaction logs associated with these databases 
can benefit from being backed up to virtual tape since they are typically too small to stream physical 
tape. 

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