answers to your it nightmares - sas, iscsi, or fibre channel?
TRANSCRIPT
Answers to Your IT Nightmares
SAS, iSCSI, or Fibre Channel?
Storage Connection Types Choosing Connection Types for SANs
(Storage Area Networks) is Tricky We’re Sharing Key Differences
SAS, iSCSI and Fibre Channel
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Lower in Cost SAS 1GbE iSCSI
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SAS Connections Speed Options
3Gb/s 6Gb/s 12Gb/s
Number of Connections Dependent Upon Generation Connect 2 to 4 Servers Redundantly to SAN
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1GbE iSCSI Connections 2 to 4 Ports per Controller
1GbE Each No Limit to Connecting Servers Things to Note:
Watch How Many Machines Connect to the SAN
Bottleneck → Performance Issues Need 1GbE Switches
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10GbE iSCSI Connections 10 Times the Speed of 1GbE iSCSI Why Higher Costs?
Need 10GbE Switches 10GbE Switches + 10 GbE NICs = $$$
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Fibre Channel Connections Speed Options
4Gb/s 8Gb/s 16Gb/s
Transmits Data Using Light More Reliable Faster Connect Over Longer Distances No EMI (electromagnetic interference)
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Fibre Channel Connections Number of Connections
Usually Limited to 2 to 4 Redundant Can Expand with Fibre Channel SAN Switch
Why Higher Costs? Cards Cables SFPs
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Summary SAS and 1GbE iSCSI are Cheaper iSCSI Provides Most Coverage
1GbE Cheaper to Deploy than 10GbE iSCSI Can Have EMI Effects
Fibre Channel Cannot Fibre Channel
More Expensive Faster More Reliable
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Take a Look SAN Options at Aventis Systems
http://www.aventissystems.com/Dell-PowerVault-SAN-s/4671.htm
http://www.aventissystems.com/HP-StorageWorks-NAS-s/4665.htm
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