Storage Systems: A Comprehensive Guide to Technologies and Concepts
SCSI vs FC
SCSI (Small Computer System Interface) and Fibre Channel (FC) are both interfaces used for connecting internal storage to external disks, often used with Storage Area Networks (SANs).
- SCSI is a media-specific interface, using only copper cables.
- Fibre Channel is media-independent, supporting both copper and fiber optic cables.
- SCSI systems can experience downtime during data transfers.
- RAID controllers are typically SCSI hardware, while Fibre Channel hardware is used for Host Bus Adapters
Storage Systems: A Comprehensive Guide to Technologies and Concepts
SCSI vs FC
SCSI (Small Computer System Interface) and Fibre Channel (FC) are both interfaces used for connecting internal storage to external disks, often used with Storage Area Networks (SANs).
- SCSI is a potential bottleneck, as it can lead to downtime.
- RAID controllers are typically SCSI hardware.
- SCSI is media-specific, using only copper cables.
- Fibre Channel is a more robust option, with potential for downtime.
- Fibre Channel hardware is known as a Host Bus Adapter (HBA).
- Fibre Channel is media-independent,
Electronic Cables, Network Topologies, and Internet Protocols: A Comprehensive Guide
– The most important characteristics in an electronic cable are the following ones: impedance, attenuation, and capacitance. Could you describe them?
Impedance: The resistance to the movement of electrons in an AC circuit. It is represented by the letter Z. Like resistance, its unit of measurement is the ohm, represented by Omega.
Attenuation: Refers to the resistance to the flow of electrons, and why a signal becomes degraded (to fade away) as it travels along the conduit. Its unit of measurement
Read MoreA Comprehensive Guide to Storage Systems: Architectures, Technologies, and Performance
SCSI vs. FC
Interface for: Internal storage to external disks
Used with: SAN
Potential Downtime: Present with both SCSI and FC
Hardware: RAID controller (SCSI), HBA (Fibre Channel)
Media: SCSI (copper only), FC (can be media independent – copper or fiber optic)
FC vs. iSCSI
Fibre Channel (FC)
- Current market leader for shared storage technologies
- Provides the highest performance levels
- Designed for mission-critical applications
- Cost of components is relatively high, particularly per-server HBA costs
- Relatively
Storage Systems: A Comprehensive Guide to Technologies and Concepts
SCSI vs FC
SCSI (Small Computer System Interface) and Fibre Channel (FC) are both interfaces used for connecting internal storage to external disks, often used with Storage Area Networks (SANs).
- SCSI is a traditional interface with potential downtime issues.
- RAID controllers are typically SCSI hardware.
- SCSI is media-specific, using only copper cables.
- Fibre Channel is a more modern interface with higher performance and reliability.
- Fibre Channel hardware is known as a Host Bus Adapter (HBA).
- Fibre Channel
Storage Systems: A Comprehensive Guide to Technologies and Concepts
SCSI vs FC
SCSI (Small Computer System Interface) and Fibre Channel (FC) are both interfaces used for connecting internal storage to external disks, often used with Storage Area Networks (SANs).
- SCSI is a potential bottleneck, as it can lead to downtime.
- RAID controllers are typically SCSI hardware.
- Fibre Channel is a more robust option, with hardware known as Host Bus Adapters (HBAs).
- SCSI is media-specific, using only copper cables.
- Fibre Channel is media-independent, supporting both copper and fiber