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Storage Area Networks

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Published in: Networking
2,979 Views

Recent developments in storage area networks. A comparison of SAN - now and then.

Sneha N / Bangalore

7 years of teaching experience

Qualification: B.E

Teaches: Computer Science, Computer, C / C++, Java And J2EE

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  1. RECENT DEVELOPMENTS IN STORAGE AREA NETWORKS by Sneha S Narayan
  2. INTRODUCTION What is a Storage Area Network? ' Components Nede
  3. JUST A BUNCH OF DISKS JBODs Then, , , Only an enclosure full of disks Simpler to manage > Had space for 8 to 16 hard disks
  4. JUST A BUNCH OF DISKS JBODs Now... High capacity, dual path Storage enclosure > Up to 90 hard disks > Hot swappable hard disks > Up to 20+ GB/s data transfer rat
  5. RAID STORAGE ' Redundant Array of Independent Disks Main Goals 1. 2. Increase Performance Increase Fault Tolerance RAID Then... Total Throughput 200 Mbyte/ s Few Hard disks
  6. RAID STORAGE RAID Now... > Maximum Capacity of 2.3 PB Maximum sustained Bandwidth > Maximum Disk Drives — 384 Supports upto 512 Hosts - 12,000 MB/s
  7. SCSI ' Small Computer System Interface SCSI, as Medium SCSI, as Protocol SCSI Then... Parallel SCSI Maximum no. of devices -16 Maximum Throughput — 320 Mbyte/s SCSI bus is multidrop
  8. SCSI SCSI Now... Serial Attached SCSI (SAS) > SAS allows up to 65,535 devices > Higher Throughput -3 or 6 Gbit/s The SAS bus operates point-to-point
  9. FIBRE CHANNEL SWITCH ' Control Centre ' Functions Fibre Channel Switch Then... > Number of Ports — 8 to 250 Data Transfer Rate-200 Mbyte/s
  10. FIBRE CHANNEL SWITCH Fibre Channel Switch Now... >Upt0 384 @ 16 Gbps ports >Upt0 512 @ 8 Gbps ports > Nonstop networking Dependable connectivity
  11. ANY QUESTIONS?
  12. ????? ???

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