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Ibrahim S
Ibrahim S

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SAS | NAS || Storage

SAN vs NAS:

SAN = Storage Area Network
NAS = Network Attached Storage

SAN:
✅ Block-level storage
✅ Connected via Fibre Channel (or) iSCSI
✅ Used for high-performance applications like databases, virtualization, and enterprise workloads
✅ Faster, more complex, and highly scalable
Examples: Dell EMC PowerMax, HPE 3PAR

NAS:
✅ File-level storage
✅ Connected over Ethernet
✅ Ideal for shared folders, backups, media, and SMB/SME environments
✅ Easy to set up, manage, and scale
Examples: Synology, QNAP

Quick Summary:

  • Access Type File-level (NFS/SMB Block-level (iSCSI/FC)
  • Network Standard Ethernet Fibre Channel / iSCSI
  • Use Case File sharing, backupsMission-criticalapps
  • Performance Good Excellent
  • Complexity Low High

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