SG0-001 · Question #377
Which of the following is the BEST option to ensure that throughput is maximized on a SAN?
The correct answer is A. ISLs should be trunked.. Trunking Inter-Switch Links (ISLs) is the best option to maximize throughput on a SAN by aggregating multiple physical links into a single logical high-bandwidth connection.
Question
Which of the following is the BEST option to ensure that throughput is maximized on a SAN?
Options
- AISLs should be trunked.
- BHosts attached to the SAN should be throttled.
- CThe number of ISL should be decreased.
- DThe number of switches on the SAN should be decreased.
How the community answered
(56 responses)- A80% (45)
- B5% (3)
- C4% (2)
- D11% (6)
Why each option
Trunking Inter-Switch Links (ISLs) is the best option to maximize throughput on a SAN by aggregating multiple physical links into a single logical high-bandwidth connection.
Trunking ISLs combines the bandwidth of several physical links between Fibre Channel switches, effectively creating a larger pipe for data traffic. This aggregation prevents bottlenecks and allows more data to flow concurrently, thereby maximizing throughput across the SAN fabric.
Throttling hosts intentionally limits their I/O, which would decrease, not maximize, throughput.
Decreasing the number of ISLs reduces the available bandwidth between switches, potentially creating bottlenecks and lowering throughput.
Decreasing the number of switches might simplify the SAN but doesn't inherently maximize throughput; it could even reduce redundancy or increase congestion if traffic is consolidated onto fewer paths.
Concept tested: SAN Fibre Channel ISL trunking
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_2/configuration/guides/config_int/fm_inter_switch_links.html
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