Phase: Choose Technologies that Meet Your Needs
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Fibre Channel vs. iSCSI
For the most part, Fibre Channel is favored by large enterprises, while iSCSI is favored by newcomers.
| Fibre Channel || iSCSI/Ethernet |
Origin and Nature
- Legacy of the pioneer days of iSCSI IP SANs, these solutions provide scalable iSCSI-based storage that leverages lower-cost Ethernet networking.
- Like the innovators, these too provide advanced features such as snap-shotting, replication and thin provisioning.
Origin and Nature
- Provide only "good enough" performance and capacity for most needs – broad common denominator.
- Cannot match the mid-range FC vendors in high-performance storage for big bandwidth transactional database storage.
- Mature management tools.
- Favored for high-bandwidth storage network traffic to storage arrays.
- Lower network capital and training costs as it leverages existing Ethernet technology and knowledge.
- Expensive due to need for its own physical infrastructure and training.
- As an advance protocol riding atop Ethernet/TCP stack, it lacks the “lossless” resilience of a layer 1 protocol.
- FC remains favored by larger enterprises with large transaction data storage environments.
- Also popular where enterprise has already made a significant past investment in FC architecture and training.
- iSCSI tends to be favored by first-time storage consolidators with more modest storage needs (it is good enough for vast majority of uses.)
- iSCSI has also emerged as go-to platform for server virtualization in SMEs.
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