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Compare the shadow paging recovery scheme with the log-based recovery schemes in terms of ease of implementation and overhead cost.
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written 5.5 years ago by |
Parameters | FCSAN | iSCSI SAN | NAS |
---|---|---|---|
Protocol source/target | FCP fibre channel storage | iSCSI/TCP/IP Server Storage Device | NIFS,CFFS,HTPP server storage device |
Transfer Object | Device block directly through FC | Device block directly through, iSCSI server | File or segment of file indirectly through NAS server |
Embedded file system | No | No | Yes |
Prefetch hit-bit certification | 40% | 40% | 100% |
Suitability with datbase | Yes | intended at same limit | intended at same limit |
Production revelance | Yes | Yes | Yes |