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SSD vs SAS

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  • SSD vs SAS

    Which one is better in performance - SSD or SAS? kindly explain the technology used in both storage

  • #2
    Hi,

    Both the SATA and SAS are spinning disk drives. SSD drives use flash memory instead of a spinning disk for much faster read/writes

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    • #3
      SSD is much faster than SAS for a typical server workload I/O, which is random in nature. For some other purposes where sequential I/O dominates and
      random I/O performance is not so important, SAS could be even slightly faster, but is certainly much cheaper (per GB).

      As far as longevity is concerned, SSD is not standing so good as typically this disks can sustain about 10000 rewrites per cell. Therefore for server workload that includes lots of random writing, SLC based SSD would be a better choice. Typically, SLC disk cells can sustain about 100000 rewrites. However, SLC disks are even more expensive, so they are really only for mission critical purposes.

      SSDs are mostly useful when it comes to high I/O requirements


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      • #4
        SSD is faster in performance however, they cannot handle heavy operations for a long time. It can cause disk failures due to this. SAS + RAID 10 is safer and almost you get the same performance

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