san
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STORAGE AVAILABILITY
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RAID LEVEL 5
This level of RAID provides data striping on each device within storage array
It comprises block level data striping with distributed parity
This configuration is used for OLTP applications.
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RAID LEVEL 1
• This level of RAID provides data mirroring.
• This requires more storage capacity.
• RAID 1 is used for applications such as data warehousing and some OLTP configurations
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Some of the guidelines for both NAS and SAN
NAS RTOS: Essentially everything that is active within NAS device is available through the NAS operating system.
NAS Configuration: External sources of information can be identified and accessed.
Fabric Operating System Information: Available within switch MIBs
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HBA Information: Available within the attached node server
Storage Information: MIBs or activity log files
OS Information: Dependent on the OS. Common Information Management Database
Application Information: Dependent on the application
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DATA RECOVERY• Double write strategy and staging process
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• The backup program can move data directly from disk to tape storage for archival and directly from tape to disk for restore
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THANK YOU