ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“

ะ’ ืœืขืฆื˜ืข ื˜ื™ื™ืœ ืฆื™ืงืœ "ื”ืงื“ืžื” ืฆื• ืกืกื“" ืžื™ืจ ื’ืขืจืขื“ื˜ ื•ื•ืขื’ืŸ ื“ื™ ื’ืขืฉื™ื›ื˜ืข ืคื•ืŸ โ€‹โ€‹ื“ื™ ืื•ื™ืกื–ืขืŸ ืคื•ืŸ ื“ื™ืกืงืก. ื“ื™ ืจื’ืข ื˜ื™ื™ืœ ื•ื•ืขื˜ ื“ืขืจืฆื™ื™ืœืŸ ื•ื•ืขื’ืŸ ื“ื™ ื™ื ื˜ืขืจืคื™ื™ืกื™ื– ืคึฟืึทืจ ื™ื ื˜ืขืจืึทืงื˜ื™ื ื’ ืžื™ื˜ ื“ืจื™ื™ื•ื•ื–.

ืงืึธืžื•ื ื™ืงืึทืฆื™ืข ืฆื•ื•ื™ืฉืŸ ื“ื™ ืคึผืจืึทืกืขืกืขืจ ืื•ืŸ ืคึผืขืจื™ืคืขืจืึทืœืก ืึทืงืขืจื– ืœื•ื™ื˜ ืคึผืจืขื“ืขืคื™ื ืขื“ ืงืึทื ื•ื•ืขื ืฉืึทื ื– ื’ืขืจื•ืคืŸ ื™ื ื˜ืขืจืคื™ื™ืกื™ื–. ื“ื™ ืึทื’ืจื™ืžืึทื ืฅ ืจืขื’ื•ืœื™ืจืŸ ื“ื™ ื’ืฉืžื™ื•ืช ืื•ืŸ ื•ื•ื™ื™ื›ื•ื•ืืจื’ ืžื“ืจื’ื” ืคื•ืŸ ื™ื ื˜ืขืจืึทืงืฉืึทืŸ.

ืฆื•ื‘ื™ื ื“ - ืึท ืกื›ื•ื ืคื•ืŸ ืžื™ื˜ืœ, ืžืขื˜ื”ืึธื“ืก ืื•ืŸ ื›ึผืœืœื™ื ืคื•ืŸ ื™ื ื˜ืขืจืึทืงืฉืึทืŸ ืฆื•ื•ื™ืฉืŸ ื“ื™ ื™ืกื•ื“ื•ืช ืคื•ืŸ ื“ื™ ืกื™ืกื˜ืขื.

ื“ื™ ื’ืฉืžื™ื•ืช ื™ืžืคึผืœืึทืžืขื ื˜ื™ื™ืฉืึทืŸ ืคื•ืŸ ืึท ืฆื•ื‘ื™ื ื“ ืึทืคืขืงืฅ ื“ื™ ืคืืœื’ืขื ื“ืข ืคึผืึทืจืึทืžืขื˜ืขืจืก:

  • ื“ื•ืจื›ืคื™ืจื•ื ื’ ืคื•ืŸ ื“ื™ ืงืึธืžื•ื ื™ืงืึทืฆื™ืข ืงืึทื ืึทืœ;
  • ื“ื™ ืžืึทืงืกื™ืžื•ื ื ื•ืžืขืจ ืคื•ืŸ ืกื™ื™ืžืึทืœื˜ื™ื™ื ื™ืึทืกืœื™ ืงืึธื ื ืขืงื˜ืขื“ ื“ืขื•ื•ื™ืกืขืก;
  • ื“ื™ ื ื•ืžืขืจ ืคื•ืŸ ืขืจืจืึธืจืก ื•ื•ืึธืก ืคืึทืœืŸ.

ื“ื™ืกืง ื™ื ื˜ืขืจืคื™ื™ืกื™ื– ื–ืขื ืขืŸ ื’ืขื‘ื•ื™ื˜ ืื•ื™ืฃ ืื™ืš / ืึธ ืคึผืึธืจืฅ, ื•ื•ืึธืก ืื™ื– ื“ืขืจ ืคืึทืจืงืขืจื˜ ืคื•ืŸ ื–ื›ึผืจื•ืŸ I/O ืื•ืŸ ื˜ื•ื˜ ื ื™ืฉื˜ ื ืขืžืขืŸ ืคึผืœืึทืฅ ืื™ืŸ ื“ื™ ืคึผืจืึทืกืขืกืขืจ ืก ืึทื“ืจืขืก ืคึผืœืึทืฅ.

ืคึผืึทืจืึทืœืขืœ ืื•ืŸ ืกื™ืจื™ืึทืœ ืคึผืึธืจืฅ

ืœื•ื™ื˜ ื“ืขื ืื•ืคึฟืŸ ืคื•ืŸ ื“ืึทื˜ืŸ ื•ื•ืขืงืกืœ, ืื™ืš / ืึธ ืคึผืึธืจืฅ ื–ืขื ืขืŸ ืฆืขื˜ื™ื™ืœื˜ ืื™ืŸ ืฆื•ื•ื™ื™ ื˜ื™ื™ืคึผืก:

  • parallel;
  • ืงืึธื ืกื™ืกื˜ืขื ื˜.

ื•ื•ื™ ื“ืขืจ ื ืึธืžืขืŸ ื™ืžืคึผืœื™ื™ื–, ื“ื™ ืคึผืึทืจืึทืœืขืœ ืคึผืึธืจื˜ ืกืขื ื“ื– ืึท ืžืึทืฉื™ืŸ ื•ื•ืึธืจื˜ ืื™ืŸ ืึท ืฆื™ื™ึทื˜, ืงืึทื ืกื™ืกื˜ื™ื ื’ ืคื•ืŸ ืขื˜ืœืขื›ืข ื‘ื™ื˜ืŸ. ื ืคึผืึทืจืึทืœืขืœ ืคึผืึธืจื˜ ืื™ื– ื“ื™ ื™ื–ื™ืึทืกื˜ ื•ื•ืขื’ ืฆื• ื•ื•ืขืงืกืœ ื“ืึทื˜ืŸ, ื•ื•ื™ื™ึทืœ ืขืก ื˜ื•ื˜ ื ื™ืฉื˜ ื“ืึทืจืคืŸ ืงืึธืžืคึผืœืขืงืก ืกืขืจืงืึทืฅ ืกืึทืœื•ืฉืึทื ื–. ืื™ืŸ ื“ื™ ืกื™ืžืคึผืœืึทืกื˜ ืคืึทืœ, ื™ืขื“ืขืจ ื‘ื™ืกืœ ืคื•ืŸ ื“ื™ ืžืึทืฉื™ืŸ ื•ื•ืึธืจื˜ ืื™ื– ื’ืขืฉื™ืงื˜ ืื•ื™ืฃ ื–ื™ื™ืŸ ืื™ื™ื’ืขื ืข ืกื™ื’ื ืึทืœ ืฉื•ืจื”, ืื•ืŸ ืฆื•ื•ื™ื™ ืกืขืจื•ื•ื™ืก ืกื™ื’ื ืึทืœ ืฉื•ืจื•ืช ื–ืขื ืขืŸ ื’ืขื ื™ืฆื˜ ืคึฟืึทืจ ื‘ืึทืžืขืจืงื•ื ื’ืขืŸ: ื“ืึทื˜ืŸ ื’ืจื™ื™ื˜ ะธ ื“ืึทื˜ืึท ืื ื’ืขื ื•ืžืขืŸ.

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ืคึผืึทืจืึทืœืขืœ ืคึผืึธืจืฅ, ื‘ื™ื™ึท ืขืจืฉื˜ืขืจ ื‘ืœื™ืง, ื•ื•ืึธื’ ื’ืขื–ื•ื ื˜: ืžืขืจ ืกื™ื’ื ืึทืœ ืฉื•ืจื•ืช - ืžืขืจ ื‘ื™ื˜ืŸ ื–ืขื ืขืŸ ื˜ืจืึทื ืกืžื™ื˜ื˜ืขื“ ืื™ืŸ ืึท ืฆื™ื™ื˜ ืื•ืŸ, ื“ืขืจื™ื‘ืขืจ, ื”ืขื›ืขืจ ื˜ืจื•ืคึผื•ื˜. ืึธื‘ืขืจ, ืจืขื›ื˜ ืฆื• ื“ืขืจ ืคืึทืจื’ืจืขืกืขืจืŸ ืื™ืŸ ื“ื™ ื ื•ืžืขืจ ืคื•ืŸ ืกื™ื’ื ืึทืœ ืฉื•ืจื•ืช, ื™ื ื˜ืขืจืคื™ืจืึทื ืก ืึทืงืขืจื– ืฆื•ื•ื™ืฉืŸ ื–ื™ื™, ื•ื•ืึธืก ืคื™ืจืŸ ืฆื• ื“ื™ืกื˜ืึธืจืฉืึทืŸ ืคื•ืŸ ื“ื™ ื˜ืจืึทื ืกืžื™ื˜ื˜ืขื“ ืึทืจื˜ื™ืงืœืขืŸ.

ืกื™ืจื™ืึทืœ ืคึผืึธืจืฅ ื–ืขื ืขืŸ ื“ื™ ืคืึทืจืงืขืจื˜ ืคื•ืŸ ืคึผืึทืจืึทืœืขืœ. ื“ืึทื˜ืŸ ื–ืขื ืขืŸ ื’ืขืฉื™ืงื˜ ืื™ื™ืŸ ื‘ื™ืกืœ ืื™ืŸ ืึท ืฆื™ื™ื˜, ื•ื•ืึธืก ืจืึทื“ื•ืกืึทื– ื“ื™ ื’ืึทื ืฅ ื ื•ืžืขืจ ืคื•ืŸ ืกื™ื’ื ืึทืœ ืฉื•ืจื•ืช, ืึธื‘ืขืจ ืงืึทืžืคึผืœื™ืงื™ื™ืฅ ื“ื™ ื™ / ืึธ ืงืึธื ื˜ืจืึธืœืœืขืจ. ื“ื™ ื˜ืจืึทื ืกืžื™ื˜ืขืจ ืงืึทื ื˜ืจืึธื•ืœืขืจ ื ืขืžื˜ ื“ื™ ืžืึทืฉื™ืŸ ื•ื•ืึธืจื˜ ืื™ืŸ ืึท ืฆื™ื™ึทื˜ ืื•ืŸ ืžื•ื–ืŸ ื™ื‘ืขืจืฉื™ืงืŸ ืื™ื™ืŸ ื‘ื™ืกืœ ืื™ืŸ ืึท ืฆื™ื™ึทื˜, ืื•ืŸ ื“ื™ ื•ืคื ืขืžืขืจ ืงืึธื ื˜ืจืึธืœืœืขืจ ืžื•ื–ืŸ ื‘ืึทืงื•ืžืขืŸ ื“ื™ ื‘ื™ื˜ืŸ ืื•ืŸ ืงืจืึธื ื–ื™ื™ ืื™ืŸ ื“ืขืจ ื–ืขืœื‘ื™ืงืขืจ ืกื“ืจ.

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ื ืงืœื™ื™ืŸ ื ื•ืžืขืจ ืคื•ืŸ ืกื™ื’ื ืึทืœ ืฉื•ืจื•ืช ืึทืœืึทื•ื– ืื™ืจ ืฆื• ืคืึทืจื’ืจืขืกืขืจืŸ ื“ื™ ืึธืคื˜ืงื™ื™ึทื˜ ืคื•ืŸ ืึธื ื–ืึธื’ ื˜ืจืึทื ืกืžื™ืกื™ืข ืึธืŸ ื™ื ื˜ืขืจืคื™ืจืึทื ืก.

ืกืงืกื™

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ืงืœื™ื™ืŸ ืงืึธืžืคึผื™ื•ื˜ืขืจ ืกื™ืกื˜ืขืžืขืŸ ืฆื•ื‘ื™ื ื“ (SCSI) ืื™ื– ืืจื•ื™ืก ืื™ืŸ 1978 ืื•ืŸ ืื™ื– ื’ืขื•ื•ืขืŸ ืขืจื™ื“ื–ืฉื ืึทืœื™ ื“ื™ื–ื™ื™ื ื“ ืฆื• ืคืึทืจื‘ื™ื ื“ืŸ ื“ืขื•ื•ื™ืกืขืก ืคื•ืŸ ืคืึทืจืฉื™ื“ืŸ ืคึผืจืึธื•ืคื™ื™ืœื– ืื™ืŸ ืึท ืื™ื™ืŸ ืกื™ืกื˜ืขื. ื“ื™ SCSI-1 ื‘ืึทืฉืจื™ื™ึทื‘ื•ื ื’ ืฆื•ื’ืขืฉื˜ืขืœื˜ ืคึฟืึทืจ ื“ื™ ืงืฉืจ ืคื•ืŸ ืึทืจื•ื™ืฃ ืฆื• 8 ื“ืขื•ื•ื™ืกืขืก (ืฆื•ื–ืึทืžืขืŸ ืžื™ื˜ ื“ื™ ืงืึธื ื˜ืจืึธืœืœืขืจ), ืึทื–ืึท ื•ื•ื™:

  • ืกืงืึทื ืขืจื–;
  • ื˜ื™ื™ืคึผ ื“ืจื™ื™ื•ื•ื– (ืกื˜ืจื™ืžืขืจื–);
  • ืึธืคึผื˜ื™ืฉ ื“ืจื™ื™ื•ื•ื–;
  • ื“ื™ืกืง ื“ืจื™ื™ื•ื•ื– ืื•ืŸ ืื ื“ืขืจืข ื“ืขื•ื•ื™ืกืขืก.

SCSI ืื™ื– ืขืจื™ื“ื–ืฉื ืึทืœื™ ื’ืขื”ื™ื™ืกืŸ Shugart Associates System Interface (SASI), ืึธื‘ืขืจ ื“ื™ ืกื˜ืึทื ื“ืึทืจื“ืก ืงืึทืžื™ื˜ื™ ื•ื•ืึธืœื˜ ื ื™ืฉื˜ ืึทืคึผืจื•ื•ื• ืึท ื ืึธืžืขืŸ ื ืึธืš ื“ื™ ืคื™ืจืžืข, ืื•ืŸ ื ืึธืš ืึท ื˜ืึธื’ ืคื•ืŸ ื‘ืจื™ื™ื ืกื˜ืึธืจืžื™ื ื’, ื“ื™ ื ืึธืžืขืŸ Small Computer Systems Interface (SCSI) ืื™ื– ื’ืขื‘ื•ื™ืจืŸ. ื“ืขืจ "ืคืื˜ืขืจ" ืคื•ืŸ SCSI, ืœืขืจื™ ื‘ืึธื•ื˜ืฉืขืจ, ื”ืึธื˜ ื‘ื“ืขื” ืึทื– ื“ื™ ืึทืงืจืึทื ื™ื ื–ืึธืœ ื–ื™ื™ืŸ ืคึผืจืึทื ืึทื•ื ืกื˜ "ืกืขืงืกื™", ืึธื‘ืขืจ ื“ืึทืœ ืึทืœืึทืŸ ืœื™ื™ืขื ืขืŸ "sัuzzy" ("ื“ืขืจืฆื™ื™ืœืŸ"). ื“ืขืจื ืึธืš, ื“ื™ ืคึผืจืึธื•ื ืึทื ืกื™ื™ื™ืฉืึทืŸ ืคื•ืŸ "ื“ืขืจืฆื™ื™ืœืŸ" ืื™ื– ื’ืขื•ื•ืขืŸ ืคืขืกื˜ ืขื ื˜ืจืขื ื˜ืฉื˜ ืื™ืŸ ื“ืขื ื ืึธืจืžืึทืœ.

ืื™ืŸ SCSI ื˜ืขืจืžื™ื ืึธืœืึธื’ื™ืข, ืงืึธื ื ืขืงื˜ืขื“ ื“ืขื•ื•ื™ืกืขืก ื–ืขื ืขืŸ ืฆืขื˜ื™ื™ืœื˜ ืื™ืŸ ืฆื•ื•ื™ื™ ื˜ื™ื™ืคึผืก:

  • ื™ื ื™ืฉื™ื™ื™ื˜ืขืจื–;
  • ืฆื™ืœ ื“ืขื•ื•ื™ืกืขืก.

ื“ืขืจ ื™ื ื™ืฉื™ื™ื™ื˜ืขืจ ืกืขื ื“ื– ืึท ื‘ืึทืคึฟืขืœ ืฆื• ื“ื™ ืฆื™ืœ ืžื™ื˜ืœ, ื•ื•ืึธืก ื“ืขืžืึธืœื˜ ืกืขื ื“ื– ืึท ืขื ื˜ืคืขืจ ืฆื• ื“ื™ ื™ื ื™ืฉื™ื™ื™ื˜ืขืจ. ื“ื™ ื™ื ื™ืฉื™ื™ื™ื˜ืขืจื– ืื•ืŸ ื˜ืึทืจื’ืึทืฅ ื–ืขื ืขืŸ ืคืืจื‘ื•ื ื“ืŸ ืฆื• ืึท ืคึผืจืึธืกื˜ SCSI ื•ื™ื˜ืึธื‘ื•ืก, ื•ื•ืึธืก ื”ืื˜ ืึท ื‘ืึทื ื“ื•ื•ื™ื“ื˜ ืคื•ืŸ 1 MB / s ืื™ืŸ ื“ื™ SCSI-5 ื ืึธืจืžืึทืœ.

ื“ื™ "ืคึผืจืึธืกื˜ ื•ื™ื˜ืึธื‘ื•ืก" ื˜ืึทืคึผืึทืœืึทื“ื–ืฉื™ ื’ืขื ื™ืฆื˜ ื™ืžืคึผืึธื•ื–ื™ื– ืึท ื ื•ืžืขืจ ืคื•ืŸ ืจื™ืกื˜ืจื™ืงืฉืึทื ื–:

  • ืื™ืŸ ื“ื™ ืขื ื“ืก ืคื•ืŸ ื“ื™ ื•ื™ื˜ืึธื‘ื•ืก ืื™ืจ ื“ืึทืจืคึฟืŸ ืกืคึผืขืฆื™ืขืœ ืžื›ืฉื™ืจื™ื - ื˜ืขืจืžื™ื ืึทื˜ืึธืจืก;
  • ื•ื™ื˜ืึธื‘ื•ืก ื‘ืึทื ื“ื•ื•ื™ื“ื˜ ืื™ื– ืฉืขืจื“ ืฆื•ื•ื™ืฉืŸ ืึทืœืข ื“ืขื•ื•ื™ืกืขืก;
  • ื“ื™ ืžืึทืงืกื™ืžื•ื ื ื•ืžืขืจ ืคื•ืŸ ืกื™ื™ืžืึทืœื˜ื™ื™ื ื™ืึทืกืœื™ ืงืึธื ื ืขืงื˜ืขื“ ื“ืขื•ื•ื™ืกืขืก ืื™ื– ืœื™ืžื™ื˜ืขื“.

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“

ื“ืขื•ื•ื™ืกืขืก ืื•ื™ืฃ ื“ื™ ื•ื™ื˜ืึธื‘ื•ืก ื–ืขื ืขืŸ ื™ื™ื“ืขื ืึทืคื™ื™ื“ ื“ื•ืจืš ืึท ื™ื™ื ืฆื™ืง ื ื•ืžืขืจ ื’ืขืจื•ืคืŸ SCSI ืฆื™ืœ ืฉื™ื™ึทืŸ. ื™ืขื“ืขืจ SCSI ืึทืคึผืึทืจืึทื˜ ืื™ืŸ ื“ื™ ืกื™ืกื˜ืขื ืื™ื– ืจืขืคึผืจื™ื–ืขื ื˜ื™ื“ ื“ื•ืจืš ืœืคึผื—ื•ืช ืื™ื™ืŸ ืœืึทื“ื–ืฉื™ืงืึทืœ ืžื™ื˜ืœ, ื•ื•ืึธืก ืื™ื– ืึทื“ืจืขืกื“ ื“ื•ืจืš ืึท ื™ื™ื ืฆื™ืง ื ื•ืžืขืจ ืื™ืŸ ื“ื™ ื’ืฉืžื™ื•ืช ืžื™ื˜ืœ. ืœืึทื“ื–ืฉื™ืงืึทืœ ืึทืคึผืึทืจืึทื˜ ื ื•ืžืขืจ (LUN).

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ืงืึทืžืึทื ื“ื– ืื™ืŸ SCSI ื–ืขื ืขืŸ ื’ืขืฉื™ืงื˜ ืื™ืŸ ื“ื™ ืคืึธืจืขื ื‘ืึทืคึฟืขืœืŸ ื‘ืึทืฉืจื™ื™ึทื‘ื•ื ื’ ื‘ืœืึทืงืก (Command Descriptor Block, CDB), ืงืึทื ืกื™ืกื˜ื™ื ื’ ืคื•ืŸ ืึท ืึธืคึผืขืจืึทืฆื™ืข ืงืึธื“ ืื•ืŸ ื‘ืึทืคึฟืขืœ ืคึผืึทืจืึทืžืขื˜ืขืจืก. ื“ืขืจ ื ืึธืจืžืึทืœ ื‘ืืฉืจื™ื™ื‘ื˜ ืžืขืจ ื•ื•ื™ 200 ืงืึทืžืึทื ื“ื–, ืฆืขื˜ื™ื™ืœื˜ ืื™ืŸ ืคื™ืจ ืงืึทื˜ืขื’ืึธืจื™ืขืก:

  • ืžืึทื ื“ืึทื˜ืึธืจื™ - ืžื•ื–ืŸ ื–ื™ื™ืŸ ื’ืขืฉื˜ื™ืฆื˜ ื“ื•ืจืš ื“ื™ ืžื™ื˜ืœ;
  • ืึธืคึผื˜ื™ืึธื ืึทืœ - ืงืขื ืขืŸ ื–ื™ื™ืŸ ื™ืžืคึผืœืึทืžืขื ืึทื“;
  • ืคืึทืจืงื•ื™ืคืขืจ-ืกืคึผืขืฆื™ืคื™ืฉ - ื’ืขื ื™ืฆื˜ ื“ื•ืจืš ืึท ืกืคึผืขืฆื™ืคื™ืฉ ืคืึทื‘ืจื™ืงืึทื ื˜;
  • ืคืึทืจืขืœื˜ืขืจื˜ - ืคืึทืจืขืœื˜ืขืจื˜ ืงืึทืžืึทื ื“ื–.

ืฆื•ื•ื™ืฉืŸ ื“ื™ ืคื™ืœืข ืงืึทืžืึทื ื“ื–, ื‘ืœื•ื™ื– ื“ืจื™ื™ ืคื•ืŸ ื–ื™ื™ ื–ืขื ืขืŸ ืžืึทื ื“ืึทื˜ืึธืจื™ ืคึฟืึทืจ ื“ืขื•ื•ื™ืกืขืก:

  • ืคึผืจื•ื‘ื™ืจืŸ ืึทืคึผืึทืจืึทื˜ ื’ืจื™ื™ื˜ - ืงืึธื ื˜ืจืึธืœื™ืจื•ื ื’ ื“ื™ ื’ืจื™ื™ื˜ืงื™ื™ึทื˜ ืคื•ืŸ ื“ื™ ืžื™ื˜ืœ;
  • ื‘ืขื˜ืŸ ื–ื™ื ืขืŸ - ืจื™ืงื•ื•ืขืก ื“ื™ ื˜ืขื•ืช ืงืึธื“ ืคื•ืŸ ื“ื™ ืคืจื™ืขืจื“ื™ืงืข ื‘ืึทืคึฟืขืœ;
  • INQUIRY - ื‘ืขื˜ืŸ ื“ื™ ื”ื•ื™ืคึผื˜ ืงืขืจืึทืงื˜ืขืจื™ืกื˜ื™ืงืก ืคื•ืŸ ื“ื™ ืžื™ื˜ืœ.

ื ืึธืš ืจื™ืกื™ื•ื•ื™ื ื’ ืื•ืŸ ืคึผืจืึทืกืขืกื™ื ื’ ื“ื™ ื‘ืึทืคึฟืขืœ, ื“ื™ ืฆื™ืœ ืžื™ื˜ืœ ืกืขื ื“ื– ืึท ืกื˜ืึทื˜ื•ืก ืงืึธื“ ืฆื• ื“ื™ ื™ื ื™ืฉื™ื™ื™ื˜ืขืจ, ื•ื•ืึธืก ื‘ืืฉืจื™ื™ื‘ื˜ ื“ื™ ืจืขื–ื•ืœื˜ืึทื˜ ืคื•ืŸ ื“ืขืจ ื“ื•ืจื›ืคื™ืจื•ื ื’.

ื•ื•ื™ื™ึทื˜ืขืจ ืคึฟืึทืจื‘ืขืกืขืจื•ื ื’ ืคื•ืŸ SCSI (SCSI-2 ืื•ืŸ Ultra SCSI ืกืคึผืขืกืึทืคืึทืงื™ื™ืฉืึทื ื–) ื™ืงืกืคึผืึทื ื“ื™ื“ ื“ื™ ืจืฉื™ืžื” ืคื•ืŸ ื’ืขื•ื•ื™ื™ื ื˜ ืงืึทืžืึทื ื“ื– ืื•ืŸ ื’ืขื•ื•ืืงืกืŸ ื“ื™ ื ื•ืžืขืจ ืคื•ืŸ ืคืืจื‘ื•ื ื“ืŸ ื“ืขื•ื•ื™ืกืขืก ืึทืจื•ื™ืฃ ืฆื• 16, ืื•ืŸ ื“ื™ ื“ืึทื˜ืŸ ื•ื•ืขืงืกืœ ืงื•ืจืก ืื•ื™ืฃ ื“ื™ ื•ื™ื˜ืึธื‘ื•ืก ืึทืจื•ื™ืฃ ืฆื• 640 ืžืขื’ืื‘ื™ื™ื˜ืŸ / s. ื–ื™ื ื˜ SCSI ืื™ื– ืึท ืคึผืึทืจืึทืœืขืœ ืฆื•ื‘ื™ื ื“, ื™ื ืงืจื™ืกื™ื ื’ ื“ื™ ืึธืคื˜ืงื™ื™ึทื˜ ืคื•ืŸ ื“ืึทื˜ืŸ ื•ื•ืขืงืกืœ ืื™ื– ืคืืจื‘ื•ื ื“ืŸ ืžื™ื˜ ืึท ืคืึทืจืงืœืขื ืขืจืŸ ืื™ืŸ ื“ื™ ืžืึทืงืกื™ืžื•ื ืงืึทื‘ืœืข ืœืขื ื’ ืื•ืŸ ื’ืขืคึฟื™ืจื˜ ืฆื• ื™ื ืงืึทื ื•ื•ื™ื ื™ืึทื ืก ืื™ืŸ ื ื•ืฆืŸ.

ืกื˜ืึทืจื˜ื™ื ื’ ืžื™ื˜ ื“ื™ Ultra-3 SCSI ื ืึธืจืžืึทืœ, ืฉื˜ื™ืฆืŸ ืคึฟืึทืจ "ื”ื™ื™ืก ืคึผืœืึทื’ื™ื ื’" ืื™ื– ืืจื•ื™ืก - ืงืึทื ืขืงื˜ื™ื ื’ ื“ืขื•ื•ื™ืกืขืก ื•ื•ืขืŸ ื“ื™ ืžืึทื›ื˜ ืื™ื– ืื•ื™ืฃ.

ื“ืขืจ ืขืจืฉื˜ืขืจ ื‘ืึทื•ื•ื•ืกื˜ SCSI SSD ืื™ื– ื’ืขื•ื•ืขืŸ ื“ื™ M-Systems FFD-350, ื‘ืืคืจื™ื™ื˜ ืื™ืŸ 1995. ื“ืขืจ ื“ื™ืกืง ื”ืื˜ ืึท ื”ื•ื™ืš ืคึผืจื™ื™ึทื– ืื•ืŸ ืื™ื– ื ื™ืฉื˜ ื•ื•ื™ื™ื“ืœื™ ื’ืขื ื™ืฆื˜.

ื“ืขืจื•ื•ื™ื™ึทืœ, ืคึผืึทืจืึทืœืขืœ SCSI ืื™ื– ื ื™ืฉื˜ ืึท ืคืึธืœืงืก ื“ื™ืกืง ืฆื•ื‘ื™ื ื“, ืึธื‘ืขืจ ื“ื™ ื‘ืึทืคึฟืขืœ ืฉื˜ืขืœืŸ ืื™ื– ื ืึธืš ืึทืงื˜ื™ื•ื•ืœื™ ื’ืขื ื™ืฆื˜ ืื™ืŸ ื•ืกื‘ ืื•ืŸ ืกืึทืก ื™ื ื˜ืขืจืคื™ื™ืกื™ื–.

ATA/PATA

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ืฆื•ื‘ื™ื ื“ ืึทื˜ืึท (ืึทื•ื•ืึทื ืกื™ืจื˜ืข ื˜ืขื›ื ืึธืœืึธื’ื™ืข ืึทื˜ืึทื˜ืฉืžืึทื ื˜), ืื•ื™ืš ื‘ืืงืื ื˜ ื•ื•ื™ HOOF (Parallel ATA) ืื™ื– ื“ืขื•ื•ืขืœืึธืคึผืขื“ ื“ื•ืจืš Western Digital ืื™ืŸ 1986. ื“ืขืจ ืคึฟืึทืจืงื•ื™ืฃ ื ืึธืžืขืŸ ืคึฟืึทืจ ื“ื™ IDE ื ืึธืจืžืึทืœ (ืขื ื’. ื™ื ื˜ืขื’ืจืึทื˜ืขื“ ื“ืจื™ื™ื•ื• ืขืœืขืงื˜ืจืึธื ื™ืง - "ืขืœืขืงื˜ืจืึธื ื™ืง ื’ืขื‘ื•ื™ื˜ ืื™ืŸ ื“ื™ ืคืึธืจ") ืื•ื ื˜ืขืจื’ืขืฉื˜ืจืื›ืŸ ืึท ื•ื•ื™ื›ื˜ื™ืง ื›ื™ื“ืขืฉ: ื“ื™ ืคืึธืจ ืงืึธื ื˜ืจืึธืœืœืขืจ ืื™ื– ื™ื ืึทื’ืจื™ื™ื˜ื™ื“ ืื™ืŸ ื“ื™ ืคืึธืจ, ืื•ืŸ ื ื™ืฉื˜ ืื•ื™ืฃ ืึท ื‘ืึทื–ื•ื ื“ืขืจ ื™ืงืกืคึผืึทื ืฉืึทืŸ ื‘ืจืขื˜.

ื“ืขืจ ื‘ืึทืฉืœื•ืก ืฆื• ืฉื˜ืขืœืŸ ื“ื™ ืงืึธื ื˜ืจืึธืœืœืขืจ ืื™ืŸ ื“ื™ ืคืึธืจ ืกืึทืœื•ื•ื“ ืขื˜ืœืขื›ืข ืคึผืจืึธื‘ืœืขืžืก ืื™ืŸ ืึทืžืึธืœ. ืขืจืฉื˜ืขืจ, ื“ื™ ื•ื•ื™ื™ึทื˜ืงื™ื™ื˜ ืคื•ืŸ ื“ื™ ืคืึธืจ ืฆื• ื“ื™ ืงืึธื ื˜ืจืึธืœืœืขืจ ืื™ื– ื“ื™ืงืจื™ืกื˜, ื•ื•ืึธืก ื”ืื˜ ืึท positive ื•ื•ื™ืจืงื•ื ื’ ืื•ื™ืฃ ื“ื™ ืคืึธืจืฉื˜ืขืœื•ื ื’ ืคื•ืŸ ื“ื™ ืคืึธืจ. ืฆื•ื•ื™ื™ื˜ื ืก, ื“ื™ ื’ืขื‘ื•ื™ื˜-ืื™ืŸ ืงืึธื ื˜ืจืึธืœืœืขืจ ืื™ื– ื’ืขื•ื•ืขืŸ "ืฉืึทืจืคึผืึทื ื“" ื‘ืœื•ื™ื– ืคึฟืึทืจ ืึท ื–ื™ื›ืขืจ ื˜ื™ืคึผ ืคื•ืŸ ืคืึธืจ ืื•ืŸ, ืึทืงืึธืจื“ื™ื ื’ืœื™, ืื™ื– ื’ืขื•ื•ืขืŸ ื˜ืฉื™ืคึผืขืจ.

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ATA, ื•ื•ื™ SCSI, ื ื™ืฆื˜ ืึท ืคึผืึทืจืึทืœืขืœ ื™ / ืึธ ืื•ืคึฟืŸ, ื•ื•ืึธืก ืื™ื– ืฉืคื™ื’ืœื˜ ืื™ืŸ ื“ื™ ื’ืขื•ื•ื™ื™ื ื˜ ืงื™ื™ื‘ืึทืœื–. ืงืึทื ืขืงื˜ื™ื ื’ ื“ืจื™ื™ื•ื•ื– ืžื™ื˜ ื“ื™ IDE ืฆื•ื‘ื™ื ื“ ืจื™ืงื•ื•ื™ื™ืขืจื– 40-ื”ืึทืจืฅ ืงื™ื™ื‘ืึทืœื–, ืื•ื™ืš ืจื™ืคืขืจื“ ืฆื• ื•ื•ื™ ืคืœืึทืš ืงื™ื™ื‘ืึทืœื–. ืžืขืจ ืคืจื™ืฉ ืกืคึผืขืกืึทืคืึทืงื™ื™ืฉืึทื ื– ื ื•ืฆืŸ 80-ื“ืจืึธื˜ ืกื˜ืึทื‘ืก, ืžืขืจ ื•ื•ื™ ื”ืึทืœื‘ ืคื•ืŸ ื•ื•ืึธืก ื–ืขื ืขืŸ ืขืจื“ ืœื•ืคึผืก ืฆื• ืจืขื“ื•ืฆื™ืจืŸ ื™ื ื˜ืขืจืคื™ืจืึทื ืก ืื™ืŸ ื”ื•ื™ืš ืคืจื™ืงื•ื•ืึทื ืกื™ื–.

ืขืก ื–ืขื ืขืŸ ืฆื•ื•ื™ื™ ืฆื• ืคื™ืจ ืงืึทื ืขืงื˜ืขืจื– ืื•ื™ืฃ ื“ื™ ATA ืงืึทื‘ืœืข, ืื™ื™ื ืขืจ ืคื•ืŸ ื•ื•ืึธืก ืื™ื– ืงืึธื ื ืขืงื˜ืขื“ ืฆื• ื“ื™ ืžืึธื˜ื”ืขืจื‘ืึธืึทืจื“, ืื•ืŸ ื“ื™ ืžื ื•ื—ื” ืฆื• ื“ื™ ื“ืจื™ื™ื•ื•ื–. ื•ื•ืขืŸ ืงืึทื ืขืงื˜ื™ื ื’ ืฆื•ื•ื™ื™ ื“ืขื•ื•ื™ืกืขืก ืื™ืŸ ืื™ื™ืŸ ืฉืœื™ื™ืฃ, ืื™ื™ื ืขืจ ืคื•ืŸ ื–ื™ื™ ืžื•ื–ืŸ ื–ื™ื™ืŸ ืงืึทื ืคื™ื’ื™ืขืจื“ ื•ื•ื™ ื‘ืึทืœืขื‘ืึธืก, ืื•ืŸ ื“ื™ ืฆื•ื•ื™ื™ื˜ืข ื•ื•ื™ ืฉืงืœืึทืฃ. ื“ื™ ื“ืจื™ื˜ ืžื™ื˜ืœ ืงืขื ืขืŸ ื–ื™ื™ืŸ ืงืึธื ื ืขืงื˜ืขื“ ื‘ืœื•ื™ื– ืื™ืŸ ืœื™ื™ืขื ืขืŸ-ื‘ืœื•ื™ื– ืžืึธื“ืข.

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ื“ื™ ืฉื˜ืขืœืข ืคื•ืŸ โ€‹โ€‹ื“ื™ ื“ื–ืฉืึทืžืคึผืขืจ ื“ื™ื˜ืขืจืžืึทื ื– ื“ื™ ืจืึธืœืข ืคื•ืŸ โ€‹โ€‹ืึท ื‘ืึทื–ื•ื ื“ืขืจ ืžื™ื˜ืœ. ื“ื™ ื˜ืขืจืžื™ื ืขืŸ ื”ืืจ ืื•ืŸ ืฉืงืœืึทืฃ ืื™ืŸ ื‘ืึทืฆื™ื•ื ื’ ืฆื• ื“ืขื•ื•ื™ืกืขืก ื–ืขื ืขืŸ ื ื™ืฉื˜ ืœืขื’ืึทืžืจืข ืจื™ื›ื˜ื™ืง, ื•ื•ื™ื™ึทืœ ืื™ืŸ ื‘ืึทืฆื™ื•ื ื’ ืฆื• ื“ื™ ืงืึธื ื˜ืจืึธืœืœืขืจ, ืึทืœืข ืคืืจื‘ื•ื ื“ืŸ ื“ืขื•ื•ื™ืกืขืก ื–ืขื ืขืŸ ืกืœืึทื•ื•ืขืก.

ื ืกืคึผืขืฆื™ืขืœ ื›ื™ื“ืขืฉ ืื™ืŸ ATA-3 ืื™ื– ื“ื™ ืื•ื™ืกื–ืขืŸ ื–ื™ืš ืžืึธื ื™ื˜ืึธืจื™ื ื’, ืึทื ืึทืœื™ืกื™ืก ืื•ืŸ ืจืขืคึผืึธืจื˜ื™ื ื’ ื˜ืขื›ื ืึธืœืึธื’ื™ืข (SMART). ืคื™ื ืฃ ืงืึธืžืคึผืึทื ื™ืขืก (IBM, Seagate, Quantum, Conner ืื•ืŸ Western Digital) ื”ืึธื‘ืŸ ื–ื™ืš ืื™ื™ื ื’ืขืฉืจื™ื‘ืŸ ืคืึธืจืกืขืก ืื•ืŸ ืกื˜ืึทื ื“ืขืจื“ื™ื™ื–ื“ ืคืึธืจ ื’ืขื–ื•ื ื˜ ืึทืกืขืกืžืึทื ื˜ ื˜ืขื›ื ืึธืœืึธื’ื™ืข.

ืฉื˜ื™ืฆืŸ ืคึฟืึทืจ ืกืึธืœื™ื“ ืฉื˜ืึทื˜ ื“ืจื™ื™ื•ื•ื– ืื™ื– ืึทืจื•ื ื–ื™ื ื˜ ื•ื•ืขืจืกื™ืข 1998 ืคื•ืŸ ื“ื™ ืกื˜ืึทื ื“ืึทืจื˜, ื‘ืืคืจื™ื™ื˜ ืื™ืŸ 33.3. ื“ื™ ื•ื•ืขืจืกื™ืข ืคื•ืŸ โ€‹โ€‹ื“ื™ ืกื˜ืึทื ื“ืึทืจื˜ ืฆื•ื’ืขืฉื˜ืขืœื˜ ื“ืึทื˜ืŸ ืึทืจื™ื‘ืขืจืคื™ืจืŸ ืจื™ื™ืฅ ืึทืจื•ื™ืฃ ืฆื• XNUMX ืžืขื’ืื‘ื™ื™ื˜ืŸ / s.

ื“ืขืจ ืกื˜ืึทื ื“ืึทืจื˜ ื’ื™ื˜ ืฉื˜ืจืขื ื’ ืจืขืงื•ื•ื™ืจืขืžืขื ืฅ ืคึฟืึทืจ ATA ืงื™ื™ื‘ืึทืœื–:

  • ื“ื™ ืคืœื•ื™ื ืžื•ื–ืŸ ื–ื™ื™ืŸ ืคืœืึทืš;
  • ืžืึทืงืกื™ืžื•ื ื‘ืึทืŸ ืœืขื ื’ 18 ืื™ื ื˜ืฉืขืก (45.7 ืกืขื ื˜ื™ืžืขื˜ืขืจ).

ื“ืข ืจ ืงื•ืจืฆืข ืจ ืื• ืŸ ื‘ืจืฒื˜ืข ืจ ื‘ื ืŸ ืื™ ื– ื’ืขืฐืข ืŸ ืื•ืžื‘ืืงื•ื•ืขื , ืื• ืŸ ื”ื ื˜ ื–ื™ ืš ืืจืฒื ื’ืขืžื™ื˜ืขืจ ื˜ ืžื™ ื˜ ืงื™ืœืŸ . ืขืก ืื™ื– ื’ืขื•ื•ืืจืŸ ืžืขืจ ืื•ืŸ ืžืขืจ ืฉื•ื•ืขืจ ืฆื• ืคืึทืจื’ืจืขืกืขืจืŸ ื“ื™ ื˜ืจืึทื ืกืžื™ืกื™ืข ืึธืคื˜ืงื™ื™ึทื˜ ืžื™ื˜ ื™ืขื“ืขืจ ืกืึทื‘ืกืึทืงื•ื•ืึทื ื˜ ื•ื•ืขืจืกื™ืข ืคื•ืŸ โ€‹โ€‹ื“ื™ ื ืึธืจืžืึทืœ, ืื•ืŸ ATA-7 ืกืึทืœื•ื•ื“ ื“ื™ ืคึผืจืึธื‘ืœืขื ืจืึทื“ื™ืงืึทืœืœื™: ืคึผืึทืจืึทืœืขืœ ืฆื•ื‘ื™ื ื“ ืื™ื– ืจื™ืคึผืœื™ื™ืกื˜ ื“ื•ืจืš ืึท ืกื™ืจื™ืึทืœ ืื™ื™ื ืขืจ. ื ืึธืš ื“ืขื, ATA ืงื•ื ื” ื“ื™ ื•ื•ืึธืจื˜ ืคึผืึทืจืึทืœืขืœ ืื•ืŸ ืื™ื– ื’ืขื•ื•ืืจืŸ ื‘ืืงืื ื˜ ื•ื•ื™ PATA, ืื•ืŸ ื“ืขืจ ื–ื™ื‘ืขื˜ืขืจ ื•ื•ืขืจืกื™ืข ืคื•ืŸ โ€‹โ€‹ื“ื™ ืกื˜ืึทื ื“ืึทืจื˜ ื‘ืืงื•ืžืขืŸ ืึท ืึทื ื“ืขืจืฉ ื ืึธืžืขืŸ - ืกื™ืจื™ืึทืœ ืึทื˜ืึท. ืกืึทื˜ืึท ื•ื•ืขืจืกื™ืข ื ืึทืžื‘ืขืจื™ื ื’ ืกื˜ืึทืจื˜ืขื“ ืคึฟื•ืŸ ืื™ื™ืŸ.

ืกืึทื˜ืึท

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ื“ื™ ืกื™ืจื™ืึทืœ ืึทื˜ืึท (SATA) ื ืึธืจืžืึทืœ ืื™ื– ื‘ืึทืงืขื ืขื  ืื•ื™ืฃ ื™ืื ื•ืืจ 7, 2003 ืื•ืŸ ื’ืขืจืขื“ื˜ ื“ื™ ืคืจืื‘ืœืขืžืขืŸ ืคื•ืŸ ื–ื™ื™ึทืŸ ืคืึธืจื•ื™ืกื’ื™ื™ืขืจ ืžื™ื˜ ื“ื™ ืคืืœื’ืขื ื“ืข ืขื ื“ืขืจื•ื ื’ืขืŸ:

  • ืคึผืึทืจืึทืœืขืœ ืคึผืึธืจื˜ ืจื™ืคึผืœื™ื™ืกื˜ ื“ื•ืจืš ืกื™ืจื™ืึทืœ;
  • ื‘ืจื™ื™ื˜ 80-ื“ืจืึธื˜ ืงืึทื‘ืœืข ืจื™ืคึผืœื™ื™ืกื˜ ื“ื•ืจืš 7-ื“ืจืึธื˜;
  • ื“ื™ "ืคึผืจืึธืกื˜ ื•ื™ื˜ืึธื‘ื•ืก" ื˜ืึทืคึผืึทืœืึทื“ื–ืฉื™ ืื™ื– ืจื™ืคึผืœื™ื™ืกื˜ ืžื™ื˜ ืึท "ืคื•ื ื˜-ืฆื•-ืคื•ื ื˜" ืงืฉืจ.

ื›ืึธื˜ืฉ SATA 1.0 (SATA / 150, 150 MB / s) ืื™ื– ื’ืขื•ื•ืขืŸ ืžืึทืจื“ื–ืฉืึทื ืึทืœื™ ืคืึทืกื˜ืขืจ ื•ื•ื™ ATA-6 (UltraDMA / 130, 130 MB / s), ื“ื™ ืžืึทืš ืฆื• ืกื™ืจื™ืึทืœ ืงืึธืžื•ื ื™ืงืึทืฆื™ืข ืื™ื– ื’ืขื•ื•ืขืŸ "ื‘ืึทืฉื˜ืขื˜ื™ืงืŸ ื“ื™ ืขืจื“" ืคึฟืึทืจ ืกืคึผื™ื“ื–.

ื–ืขื›ืฆืŸ ืกื™ื’ื ืึทืœ ืฉื•ืจื•ืช ืคึฟืึทืจ ื“ืึทื˜ืŸ ื˜ืจืึทื ืกืžื™ืกื™ืข ืื™ืŸ ATA ื–ืขื ืขืŸ ืจื™ืคึผืœื™ื™ืกื˜ ืžื™ื˜ ืฆื•ื•ื™ื™ ื˜ื•ื•ื™ืกื˜ื™ื“ ืคึผืขืจื–: ืื™ื™ื ืขืจ ืคึฟืึทืจ ื˜ืจืึทื ืกืžื™ืกื™ืข, ื“ื™ ืจื’ืข ืคึฟืึทืจ ืึธืคึผื˜ืจืึธื’. SATA ืงืึทื ืขืงื˜ืขืจื– ื–ืขื ืขืŸ ื“ื™ื–ื™ื™ื ื“ ืฆื• ื–ื™ื™ืŸ ืžืขืจ ืงืขื’ื ืฉื˜ืขืœื™ืง ืฆื• ืงื™ื™ืคืœ ืจื™ืงืึทื ืขืงืฉืึทื ื–, ืื•ืŸ ื“ื™ SATA 1.0 ื‘ืึทืฉืจื™ื™ึทื‘ื•ื ื’ ื’ืขืžืื›ื˜ ื”ื™ื™ืก ืคึผืœืึทื’ื™ื ื’ ืžืขื’ืœืขืš.

ืขื˜ืœืขื›ืข ืคึผื™ื ืก ืื•ื™ืฃ ื“ื™ ื“ืจื™ื™ื•ื•ื– ื–ืขื ืขืŸ ืงื™ืจืฆืขืจ ื•ื•ื™ ืึทืœืข ื“ื™ ืื ื“ืขืจืข. ื“ืึธืก ืื™ื– ื’ืขื˜ืืŸ ืฆื• ืฉื˜ื™ืฆืŸ "ื”ื™ื™ืก ื•ื™ืกื‘ื™ื™ึทื˜ืŸ" (ื”ื™ื™ืก ืกื•ื•ืึทืคึผ). ื‘ืขืฉืึทืก ื“ื™ ืคืึทืจื‘ื™ื™ึทื˜ ืคึผืจืึธืฆืขืก, ื“ื™ ืžื™ื˜ืœ "ืœืึธื•ื–" ืื•ืŸ "ื’ืขืคื™ื ื˜" ื“ื™ ืฉื•ืจื•ืช ืื™ืŸ ืึท ืคึผืจื™ื“ื™ื˜ืขืจืžื™ื ื“ ืกื“ืจ.

ื ื‘ื™ืกืœ ืžืขืจ ื•ื•ื™ ืึท ื™ืึธืจ ืฉืคึผืขื˜ืขืจ, ืื™ืŸ ืืคืจื™ืœ 2004, ื“ื™ ืจื’ืข ื•ื•ืขืจืกื™ืข ืคื•ืŸ โ€‹โ€‹ื“ื™ SATA ืกืคึผืขืกื™ืคื™ืงืึทื˜ื™ืึธืŸ ืื™ื– ื‘ืืคืจื™ื™ื˜. ืื™ืŸ ืึทื“ื™ืฉืึทืŸ ืฆื• ืึทืงืกืขืœืขืจื™ื™ื˜ื™ื ื’ ืึทืจื•ื™ืฃ ืฆื• 3 ื’ื™ื’ืื‘ื™ื™ื˜ / s, SATA 2.0 ื™ื ื˜ืจืึธื•ื“ื•ืกื˜ ื˜ืขื›ื ืึธืœืึธื’ื™ืข ื’ืขื‘ื•ื™ืจืŸ ื‘ืึทืคึฟืขืœืŸ ืจื™ื™ (NCQ). ื“ืขื•ื•ื™ืกืขืก ืžื™ื˜ NCQ ืฉื˜ื™ืฆืŸ ื–ืขื ืขืŸ ื‘ื™ื›ื•ืœืช ืฆื• ื™ื ื“ื™ืคึผืขื ื“ืึทื ื˜ืœื™ ืึธืจื’ืึทื ื™ื–ื™ืจืŸ ื“ื™ ืกื“ืจ ืคื•ืŸ ื“ื•ืจื›ืคื™ืจื•ื ื’ ืคื•ืŸ ื™ื ืงืึทืžื™ื ื’ ืงืึทืžืึทื ื“ื– ืฆื• ื“ืขืจื’ืจื™ื™ื›ืŸ ืžืึทืงืกื™ืžื•ื ืคืึธืจืฉื˜ืขืœื•ื ื’.

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ื“ื™ ื•ื•ื™ื™ึทื˜ืขืจ ื“ืจื™ื™ ื™ืึธืจ, ื“ื™ SATA ื•ื•ืึธืจืงื™ื ื’ ื’ืจื•ืคืข ื’ืขืืจื‘ืขื˜ ืฆื• ืคึฟืึทืจื‘ืขืกืขืจืŸ ื“ื™ ื™ื’ื–ื™ืกื˜ื™ื ื’ ืกืคึผืขืกืึทืคืึทืงื™ื™ืฉืึทื ื–, ืื•ืŸ ื•ื•ืขืจืกื™ืข 2.6 ื™ื ื˜ืจืึธื•ื“ื•ืกื˜ ืกืึธืœื™ื“ ืกืœื™ืžืœื™ื™ืŸ ืื•ืŸ ืžื™ืงืจืึธ ืกืึทื˜ืึท (uSATA) ืงืึทื ืขืงื˜ืขืจื–. ื“ื™ ืงืึทื ืขืงื˜ืขืจื– ื–ืขื ืขืŸ ืึท ืงืœืขื ืขืจืขืจ ื•ื•ืขืจืกื™ืข ืคื•ืŸ โ€‹โ€‹โ€‹โ€‹ื“ืขืจ ืึธืจื™ื’ื™ื ืขืœ SATA ืงืึทื ืขืงื˜ืขืจ ืื•ืŸ ื–ืขื ืขืŸ ื“ื™ื–ื™ื™ื ื“ ืคึฟืึทืจ ืึธืคึผื˜ื™ืฉ ื“ืจื™ื™ื•ื•ื– ืื•ืŸ ืงืœื™ื™ืŸ ื“ืจื™ื™ื•ื•ื– ืื™ืŸ ืœืึทืคึผื˜ืึทืคึผืก.

ื‘ืฉืขืช ืฆื•ื•ื™ื™ื˜ืข ื“ื•ืจ SATA ื”ืื˜ ื’ืขื ื•ื’ ื‘ืึทื ื“ื•ื•ื™ื“ื˜ ืคึฟืึทืจ ื”ื“ื“, SSDs ืคืืจืœืื ื’ื˜ ืžืขืจ. ืื™ืŸ ืžืื™ 2009, ื“ื™ ื“ืจื™ื˜ ื•ื•ืขืจืกื™ืข ืคื•ืŸ โ€‹โ€‹ื“ื™ SATA ืกืคึผืขืกื™ืคื™ืงืึทื˜ื™ืึธืŸ ืื™ื– ื‘ืืคืจื™ื™ื˜ ืžื™ื˜ ืึท ื’ืขื•ื•ืืงืกืŸ ื‘ืึทื ื“ื•ื•ื™ื“ื˜ ืฆื• 6 ื’ื‘ / s.

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ืกืคึผืขืฆื™ืขืœืข ื•ืคืžืขืจืงื–ืึทืžืงื™ื™ื˜ ืื™ื– ื‘ืึทืฆืึธืœื˜ ืฆื• ื”ืึทืจื˜ ืฉื˜ืึทื˜ ื“ืจื™ื™ื•ื•ื– ืื™ืŸ ื“ื™ SATA 3.1 ืึทื“ื™ืฉืึทืŸ. ื ืžื™ื ื™-ืกืึทื˜ืึท (ืžืกืึทื˜ืึท) ืงืึทื ืขืงื˜ืขืจ ืื™ื– ืืจื•ื™ืก, ื“ื™ื–ื™ื™ื ื“ ืฆื• ืคืึทืจื‘ื™ื ื“ืŸ ื”ืึทืจื˜-ืฉื˜ืึทื˜ ื“ืจื™ื™ื•ื•ื– ืื™ืŸ ืœืึทืคึผื˜ืึทืคึผืก. ื ื™ื˜ ืขื ืœืขืš Slimline ืื•ืŸ uSATA, ื“ื™ ื ื™ื™ึทืข ืงืึทื ืขืงื˜ืขืจ ื’ืขืงื•ืงื˜ ื•ื•ื™ ืึท PCIe Mini, ื›ืึธื˜ืฉ ืขืก ืื™ื– ื ื™ืฉื˜ ื™ืœืขืงื˜ืจื™ืง ืงืึทืžืคึผืึทื˜ืึทื‘ืึทืœ ืžื™ื˜ PCIe. ืื™ืŸ ืึทื“ื™ืฉืึทืŸ ืฆื• ื“ื™ ื ื™ื™ึทืข ืงืึทื ืขืงื˜ืขืจ, SATA 3.1 ื‘ืึธื•ืกื˜ื™ื“ ื“ื™ ืคื™ื™ื™ืงื™ื™ื˜ ืฆื• ืจื™ื™ TRIM ืงืึทืžืึทื ื“ื– ืžื™ื˜ ืœื™ื™ืขื ืขืŸ ืื•ืŸ ืฉืจื™ื™ึทื‘ืŸ ืงืึทืžืึทื ื“ื–.

ื“ื™ TRIM ื‘ืึทืคึฟืขืœ ื ืึธื•ื˜ืึทืคื™ื™ื– ื“ื™ SSD ืคื•ืŸ ื“ืึทื˜ืŸ ื‘ืœืึทืงืก ื•ื•ืึธืก ื˜ืึธืŸ ื ื™ื˜ ืคื™ืจืŸ ืึท ืคึผื™ื™ืœืึธื•ื“. ืื™ื™ื“ืขืจ SATA 3.1, ื“ืขื ื‘ืึทืคึฟืขืœ ื•ื•ืึธืœื˜ ื•ื™ืกืžืขืงืŸ ืงืึทื˜ืฉืขืก ืื•ืŸ ื•ืคื”ืขื ื’ืขืŸ ื™ / ืึธ ืึทืคึผืขืจื™ื™ืฉืึทื ื–, ื ืื›ื’ืขื’ืื ื’ืขืŸ ื“ื•ืจืš ืึท TRIM ื‘ืึทืคึฟืขืœ. ื“ืขื ืฆื•ื’ืึทื ื’ ื“ื™ื’ืจื™ื™ื“ื™ื“ ื“ื™ืกืง ืคืึธืจืฉื˜ืขืœื•ื ื’ ื‘ืขืฉืึทืก ื•ื™ืกืžืขืงืŸ ืึทืคึผืขืจื™ื™ืฉืึทื ื–.

ื“ื™ SATA ืกืคึผืขืกืึทืคืึทืงื™ื™ืฉืึทืŸ ื”ืื˜ ื ื™ืฉื˜ ื”ืึทืœื˜ืŸ ื–ื™ืš ืžื™ื˜ ื“ื™ ื’ื™ืš ื•ื•ื•ึผืงืก ืื™ืŸ ืึทืงืกืขืก ืกืคึผื™ื“ื– ืคึฟืึทืจ SSDs, ืœื™ื“ื™ื ื’ ืฆื• ืึท ืงืึธืžืคึผืจืึธืžื™ืก ืื™ืŸ 2013 ื’ืขืจื•ืคึฟืŸ SATA Express ืื™ืŸ ื“ื™ SATA 3.2 ื ืึธืจืžืึทืœ. ืึทื ืฉื˜ืึธื˜ ื“ืึทื‘ืœื™ื ื’ ื“ื™ ื‘ืึทื ื“ื•ื•ื™ื“ื˜ ืคื•ืŸ SATA ื•ื•ื™ื“ืขืจ, ื“ื™ ื“ืขื•ื•ืขืœืึธืคึผืขืจืก ื”ืึธื‘ืŸ ื’ืขื•ื•ื™ื™ื ื˜ ื“ื™ ื•ื•ื™ื™ื“ืœื™ ื’ืขื•ื•ื™ื™ื ื˜ PCIe ื•ื™ื˜ืึธื‘ื•ืก, ื•ื•ืขืžืขื ืก ื’ื™ื›ืงื™ื™ึทื˜ ื™ืงืกื™ื“ื– 6 ื’ื‘ / s. ื“ืจื™ื™ื•ื•ื– ืžื™ื˜ ืกืึทื˜ืึท ืขืงืกืคึผืจืขืกืก ืฉื˜ื™ืฆืŸ ื”ืึธื‘ืŸ ืงื•ื ื” ื–ื™ื™ืขืจ ืื™ื™ื’ืŸ ืคืึธืจืขื ืคืึทืงื˜ืึธืจ ื’ืขืจื•ืคึฟืŸ ืž.2.

ืกืึทืก

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ื“ืขืจ SCSI ืกื˜ืึทื ื“ืึทืจื˜, "ืงืึทืžืคึผืขื˜ื™ื˜ื™ื•ื•" ืžื™ื˜ ATA, ืื™ื– ืื•ื™ืš ื ื™ืฉื˜ ืฉื˜ื™ื™ืŸ ื ืึธืš ืื•ืŸ ื‘ืœื•ื™ื– ืึท ื™ืึธืจ ื ืึธืš ื“ื™ ืื•ื™ืกื–ืขืŸ ืคื•ืŸ ืกื™ืจื™ืึทืœ ATA, ืื™ืŸ 2004, ืขืก ืื™ื– ืจื™ื‘ืึธืจืŸ ืื™ืŸ ืึท ืกื™ืจื™ืึทืœ ืฆื•ื‘ื™ื ื“. ื“ืขืจ ื ืึธืžืขืŸ ืคื•ืŸ ื“ื™ ื ื™ื™ึทืข ืฆื•ื‘ื™ื ื“ ืื™ื– ืกื™ืจื™ืึทืœ ืึทื˜ืึทื˜ืฉื˜ ืกืงืกื™ (SEDGE).

ื›ืึธื˜ืฉ SAS ื™ื ื›ืขืจืึทื˜ื™ื“ ื“ื™ SCSI ื‘ืึทืคึฟืขืœืŸ ืฉื˜ืขืœืŸ, ื“ื™ ืขื ื“ืขืจื•ื ื’ืขืŸ ื–ืขื ืขืŸ ื‘ืึทื˜ื™ื™ื˜ื™ืง:

  • ืกื™ืจื™ืึทืœ ืฆื•ื‘ื™ื ื“;
  • 29-ื“ืจืึธื˜ ืงืึทื‘ืœืข ืžื™ื˜ ืžืึทื›ื˜ ืฆื•ืฉื˜ืขืœืŸ;
  • ืคื•ื ื˜-ืฆื•-ืคื•ื ื˜ ืงืฉืจ

ื“ื™ SCSI ื˜ืขืจืžื™ื ืึธืœืึธื’ื™ืข ืื™ื– ืื•ื™ืš ื™ื ื›ืขืจืึทื˜ื™ื“. ื“ืขืจ ืงืึธื ื˜ืจืึธืœืœืขืจ ืื™ื– ื ืึธืš ื’ืขืจื•ืคืŸ ื“ื™ ื™ื ื™ืฉื™ื™ื™ื˜ืขืจ, ืื•ืŸ ื“ื™ ืคืืจื‘ื•ื ื“ืŸ ื“ืขื•ื•ื™ืกืขืก ื–ืขื ืขืŸ ื’ืขืจื•ืคืŸ ื“ื™ ืฆื™ืœ. ืึทืœืข ืฆื™ืœ ื“ืขื•ื•ื™ืกืขืก ืื•ืŸ ื“ื™ ื™ื ื™ืฉื™ื™ื™ื˜ืขืจ ืคืึธืจืขื ืึท SAS ืคืขืœื“. ืื™ืŸ SAS, ื“ื™ ื‘ืึทื ื“ื•ื•ื™ื“ื˜ ืคื•ืŸ ื“ื™ ืงืฉืจ ืื™ื– ื ื™ืฉื˜ ืึธืคืขื ื’ืขืŸ ืื•ื™ืฃ ื“ื™ ื ื•ืžืขืจ ืคื•ืŸ ื“ืขื•ื•ื™ืกืขืก ืื™ืŸ ื“ื™ ืคืขืœื“, ื•ื•ื™ื™ึทืœ ื™ืขื“ืขืจ ืžื™ื˜ืœ ื ื™ืฆื˜ ื–ื™ื™ืŸ ืื™ื™ื’ืขื ืข ื“ืขื“ืึทืงื™ื™ื˜ืึทื“ ืงืึทื ืึทืœ.

ื“ื™ ืžืึทืงืกื™ืžื•ื ื ื•ืžืขืจ ืคื•ืŸ ืกื™ื™ืžืึทืœื˜ื™ื™ื ื™ืึทืกืœื™ ืงืึธื ื ืขืงื˜ืขื“ ื“ืขื•ื•ื™ืกืขืก ืื™ืŸ ืึท SAS ืคืขืœื“, ืœื•ื™ื˜ ื“ื™ ืกืคึผืขืกื™ืคื™ืงืึทื˜ื™ืึธืŸ, ื™ืงืกื™ื“ื– 16 ื˜ื•ื™ื–ื ื˜, ืื•ืŸ ืึทื ืฉื˜ืึธื˜ ืคื•ืŸ ืึท SCSI ID, ืึท ืื™ื“ืขื ื˜ื™ื˜ืขื˜ ืื™ื– ื’ืขื ื™ืฆื˜ ืคึฟืึทืจ ืึทื“ืจืขืกื™ื ื’ ื•ื•ืขืœื˜ ื•ื•ื™ื“ืข ื ืึธืžืขืŸ (WWN).

WWN ืื™ื– ืึท ื™ื™ื ืฆื™ืง ื™ื“ืขื ื˜ื™ืคื™ืขืจ 16 ื‘ื™ื˜ืขืก ืœืึทื ื’, ืขื ืœืขืš ืฆื• ื“ื™ MAC ืึทื“ืจืขืก ืคึฟืึทืจ SAS ื“ืขื•ื•ื™ืกืขืก.

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ื˜ืจืึธืฅ ื“ื™ ืกื™ืžืึทืœืขืจืึทื˜ื™ื– ืฆื•ื•ื™ืฉืŸ SAS ืื•ืŸ SATA ืงืึทื ืขืงื˜ืขืจื–, ื“ื™ ืกื˜ืึทื ื“ืึทืจื“ืก ื–ืขื ืขืŸ ื ื™ืฉื˜ ื’ืึธืจ ืงืึทืžืคึผืึทื˜ืึทื‘ืึทืœ. ืึธื‘ืขืจ, ืึท SATA ืคืึธืจ ืงืขื ืขืŸ ื–ื™ื™ืŸ ืงืึธื ื ืขืงื˜ืขื“ ืฆื• ืึท SAS ืงืึทื ืขืงื˜ืขืจ, ืึธื‘ืขืจ ื ื™ืฉื˜ ื•ื•ื™ืฆืข ื•ื•ืขืจืกืึท. ืงืึทืžืคึผืึทื˜ืึทื‘ื™ืœืึทื˜ื™ ืฆื•ื•ื™ืฉืŸ SATA ื“ืจื™ื™ื•ื•ื– ืื•ืŸ ื“ื™ SAS ืคืขืœื“ ืื™ื– ื™ื ืฉื•ืจื“ ืžื™ื˜ ื“ื™ SATA ื˜ื•ื ื ืขืœื™ื ื’ ืคึผืจืึธื˜ืึธืงืึธืœ (STP).

ื“ืขืจ ืขืจืฉื˜ืขืจ ื•ื•ืขืจืกื™ืข ืคื•ืŸ โ€‹โ€‹ื“ื™ SAS-1 ื ืึธืจืžืึทืœ ื”ืื˜ ืึท ื‘ืึทื ื“ื•ื•ื™ื“ื˜ ืคื•ืŸ 3 ื’ื‘ / s, ืื•ืŸ ื“ื™ ืžืขืจืกื˜ ืžืึธื“ืขืจืŸ, SAS-4, ื™ืžืคึผืจื•ื•ื•ื“ ื“ืขื ืคื™ื’ื•ืจ ืžื™ื˜ 7 ืžืืœ: 22,5 ื’ื‘ / s.

ืคึผืกื™ืข

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ืคึผืขืจื™ืคืขืจืึทืœ ืงืึธืžืคึผืึธื ืขื ื˜ ื™ื ื˜ืขืจืงืึทื ืขืงื˜ ืขืงืกืคึผืจืขืกืก (PCI Express, PCIe) ืื™ื– ืึท ืกื™ืจื™ืึทืœ ืฆื•ื‘ื™ื ื“ ืคึฟืึทืจ ื“ืึทื˜ืŸ ืึทืจื™ื‘ืขืจืคื™ืจืŸ, ื•ื•ืึธืก ืื™ื– ืืจื•ื™ืก ืื™ืŸ 2002. ื“ื™ ืึทื ื˜ื•ื•ื™ืงืœื•ื ื’ ืื™ื– ืกื˜ืึทืจื˜ืขื“ ื“ื•ืจืš ื™ื ื˜ืขืœ, ืื•ืŸ ื“ืขืจื ืึธืš ื˜ืจืึทื ืกืคืขืจื“ ืฆื• ืึท ืกืคึผืขืฆื™ืขืœ ืึธืจื’ืึทื ื™ื–ืึทืฆื™ืข - ื“ื™ PCI ืกืคึผืขืฆื™ืขืœืข ื™ื ื˜ืขืจืขืก ื’ืจื•ืคืข.

ื“ื™ ืกื™ืจื™ืึทืœ PCIe ืฆื•ื‘ื™ื ื“ ืื™ื– ื’ืขื•ื•ืขืŸ ืงื™ื™ืŸ ื•ื™ืกื ืขื ืื•ืŸ ืื™ื– ื’ืขื•ื•ืืจืŸ ืึท ืœืึทื“ื–ืฉื™ืงืึทืœ ืงืึทื ื˜ื™ื ื™ื•ื™ื™ืฉืึทืŸ ืคื•ืŸ ืคึผืึทืจืึทืœืขืœ PCI, ื•ื•ืึธืก ืื™ื– ื“ื™ื–ื™ื™ื ื“ ืฆื• ืคืึทืจื‘ื™ื ื“ืŸ ื™ืงืกืคึผืึทื ืฉืึทืŸ ืงืึทืจื“ืก.

PCI Express ืื™ื– ื‘ืื˜ื™ื™ื˜ื™ืง ืึทื ื“ืขืจืฉ ืคื•ืŸ SATA ืื•ืŸ SAS. ื“ื™ PCIe ืฆื•ื‘ื™ื ื“ ื”ืื˜ ืึท ื‘ื™ื™ึทื˜ืขื•ื•ื“ื™ืง ื ื•ืžืขืจ ืคื•ืŸ ืœื™ื™ื ื–. ื“ื™ ื ื•ืžืขืจ ืคื•ืŸ ืฉื•ืจื•ืช ืื™ื– ื’ืœื™ื™ึทืš ืฆื• ื›ื•ื—ื•ืช ืคื•ืŸ ืฆื•ื•ื™ื™ ืื•ืŸ ืจื™ื™ื ื“ื–ืฉืึทื– ืคื•ืŸ 1 ืฆื• 16.

ื“ืขืจ ื˜ืขืจืžื™ืŸ "ืœื™ื™ืŸ" ืื™ืŸ PCIe ืจืขืคืขืจืก ื ื™ืฉื˜ ืฆื• ืึท ืกืคึผืขืฆื™ืคื™ืฉ ืกื™ื’ื ืึทืœ ืฉื˜ืขื’, ืึธื‘ืขืจ ืฆื• ืึท ื‘ืึทื–ื•ื ื“ืขืจ ืคื•ืœ-ื“ื•ืคึผืœืขืงืก ืงืึธืžื•ื ื™ืงืึทืฆื™ืข ืคึฟืึทืจื‘ื™ื ื“ื•ื ื’ ืงืึทื ืกื™ืกื˜ื™ื ื’ ืคื•ืŸ ื“ื™ ืคืืœื’ืขื ื“ืข ืกื™ื’ื ืึทืœ ืœื™ื™ื ื–:

  • ื‘ืึทืงื•ืžืขืŸ+ ืื•ืŸ ื‘ืึทืงื•ืžืขืŸ-;
  • ื˜ืจืึทื ืกืžื™ืกื™ืข + ืื•ืŸ ื˜ืจืึทื ืกืžื™ืกื™ืข-;
  • ืคื™ืจ ืขืจื“ ื•ื•ื™ืจืขืก.

ื“ื™ ื ื•ืžืขืจ ืคื•ืŸ PCIe ืœื™ื™ื ื– ื’ืœื™ื™ึทืš ืึทืคืขืงืฅ ื“ื™ ืžืึทืงืกื™ืžื•ื ื‘ืึทื ื“ื•ื•ื™ื“ื˜ ืคื•ืŸ ื“ื™ ืงืฉืจ. ื“ื™ ืงืจืึทื ื˜ PCI Express 4.0 ื ืึธืจืžืึทืœ ืึทืœืึทื•ื– ืื™ืจ ืฆื• ื“ืขืจื’ืจื™ื™ื›ืŸ 1.9 ื’ื™ื’ืื‘ื™ื™ื˜ / s ืื•ื™ืฃ ืึท ืื™ื™ืŸ ืฉื•ืจื”, ืื•ืŸ 31.5 ื’ื™ื’ืื‘ื™ื™ื˜ / s ื•ื•ืขืŸ ืื™ืจ ื ื•ืฆืŸ 16 ืฉื•ืจื•ืช.

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ื“ื™ "ืึทืคึผืึทื˜ื™ื˜ืขืก" ืคื•ืŸ ื”ืึทืจื˜-ืฉื˜ืึทื˜ ื“ืจื™ื™ื•ื•ื– ื•ื•ืึทืงืกืŸ ื–ื™ื™ืขืจ ื’ืขืฉื•ื•ื™ื ื“. ื‘ื™ื™ื“ืข SATA ืื•ืŸ SAS ื”ืึธื‘ืŸ ื ื™ืฉื˜ ื’ืขื•ื•ืขืŸ ื‘ื™ื›ื•ืœืช ืฆื• ืคืึทืจื’ืจืขืกืขืจืŸ ื–ื™ื™ืขืจ ื‘ืึทื ื“ื•ื•ื™ื“ื˜ ืฆื• ื”ืึทืœื˜ืŸ ื’ืึทื ื’ ืžื™ื˜ SSDs, ื•ื•ืึธืก ื”ืื˜ ื’ืขืคึฟื™ืจื˜ ืฆื• ื“ื™ ื”ืงื“ืžื” ืคื•ืŸ PCIe-ืคืืจื‘ื•ื ื“ืŸ SSDs.

ื›ืึธื˜ืฉ PCIe ืœื™ื™ื’-ืื™ืŸ ืงืึทืจื“ืก ื–ืขื ืขืŸ ืกืงืจื•ื“ ืื•ื™ืฃ, PCIe ืื™ื– ื”ื™ื™ืก ืกื•ื•ืึทืคึผืคึผืึทื‘ืœืข. ืงื•ืจืฅ ืคึผื™ื ืก PRSNT (ืขื ื’ืœื™ืฉ ืคืึธืจืฉื˜ืขืœืŸ - ืคืึธืจืฉื˜ืขืœืŸ) ืžืึทื›ืŸ ื–ื™ื›ืขืจ ืึทื– ื“ื™ ืงืึธืจื˜ ืื™ื– ื’ืึธืจ ืื™ื ืกื˜ืึทืœื™ืจืŸ ืื™ืŸ ื“ื™ ืฉืคึผืขืœื˜ืœ.

ืกืึธืœื™ื“ ืฉื˜ืึทื˜ ื“ืจื™ื™ื•ื•ื– ืคืืจื‘ื•ื ื“ืŸ ื“ื•ืจืš PCIe ื–ืขื ืขืŸ ืจืขื’ื™ืึทืœื™ื™ื˜ืึทื“ ื“ื•ืจืš ืึท ื‘ืึทื–ื•ื ื“ืขืจ ื ืึธืจืžืึทืœ ื ื™ื˜-ื•ื•ืึทืœืึทื˜ื™ืœืข ื–ื›ึผืจื•ืŸ ื”ืึธืกื˜ ืงืึธื ื˜ืจืึธืœืœืขืจ ืฆื•ื‘ื™ื ื“ ืกืคึผืขืกื™ืคื™ืงืึทื˜ื™ืึธืŸ ืื•ืŸ ื–ืขื ืขืŸ ื™ืžื‘ืึทื“ื™ื“ ืื™ืŸ ืึท ืคืึทืจืฉื™ื™ื“ื ืงื™ื™ึทื˜ ืคื•ืŸ ืคืึธืจืขื ืกื™ื‘ื•ืช, ืึธื‘ืขืจ ืžื™ืจ ื•ื•ืขืœืŸ ืจืขื“ืŸ ื•ื•ืขื’ืŸ ื–ื™ื™ ืื™ืŸ ื“ืขืจ ื•ื•ื™ื™ึทื˜ืขืจ ื˜ื™ื™ืœ.

ื•ื•ื™ื™ึทื˜ ื“ืจื™ื™ื•ื•ื–

ื•ื•ืขืŸ ืงืจื™ื™ื™ื˜ื™ื ื’ ื’ืจื•ื™ืก ื“ืึทื˜ืŸ ื•ื•ืขืจื›ืึทื•ื–ื™ื–, ืขืก ืื™ื– ื’ืขื•ื•ืขืŸ ืึท ื ื•ื™ื˜ ืคึฟืึทืจ ืคึผืจืึธื˜ืึธืงืึธืœืก ื•ื•ืึธืก ืœืึธื–ืŸ ืื™ืจ ืฆื• ืคืึทืจื‘ื™ื ื“ืŸ ื“ืจื™ื™ื•ื•ื– ืœื™ื’ืŸ ืึทืจื•ื™ืก ื“ื™ ืกืขืจื•ื•ืขืจ. ื“ืขืจ ืขืจืฉื˜ืขืจ ืœื™ื™ื–ื•ื ื’ ืื™ืŸ ื“ืขื ื’ืขื’ื ื˜ ืื™ื– ื’ืขื•ื•ืขืŸ ืื™ื ื˜ืขืจื ืขื˜ SCSI (iSCSI), ื“ืขื•ื•ืขืœืึธืคึผืขื“ ื“ื•ืจืš ื™ื‘ื ืื•ืŸ ืกื™ืกืงืึธ ืื™ืŸ 1998.

ื“ืขืจ ื’ืขื“ืึทื ืง ื”ื™ื ื˜ืขืจ ื“ื™ iSCSI ืคึผืจืึธื˜ืึธืงืึธืœ ืื™ื– ืคึผืฉื•ื˜: SCSI ืงืึทืžืึทื ื“ื– ื–ืขื ืขืŸ "ืืœื ื’ืขื•ื•ื™ืงืœื˜" ืื™ืŸ TCP / IP ืคึผืึทืงื™ืฅ ืื•ืŸ ื’ืขืฉื™ืงื˜ ืฆื• ื“ื™ ื ืขืฅ. ื˜ืจืึธืฅ ื“ื™ ื•ื•ื™ื™ึทื˜ ืงืฉืจ, ืขืก ื’ื™ื˜ ื“ื™ ืื™ืœื•ื–ื™ืข ืฆื• ืงืœื™ื™ืึทื ืฅ ืึทื– ื“ื™ ืคืึธืจ ืื™ื– ืœืึธื•ืงืึทืœื™ ืงืึธื ื ืขืงื˜ืขื“. ืกื˜ืึธืจื™ื“ื–ืฉ ืฉื˜ื— ื ืขื˜ื•ื•ืึธืจืง (SAN), ื‘ืื–ื™ืจื˜ ืื•ื™ืฃ iSCSI, ืงืขื ืขืŸ ื–ื™ื™ืŸ ื’ืขื‘ื•ื™ื˜ ืื•ื™ืฃ ื™ื’ื–ื™ืกื˜ื™ื ื’ ื ืขืฅ ื™ื ืคืจืึทืกื˜ืจืึทืงื˜ืฉืขืจ. ื“ื™ ื ื•ืฆืŸ ืคื•ืŸ iSCSI ื‘ืื˜ื™ื™ื˜ื™ืง ืจืึทื“ื•ืกืึทื– ื“ื™ ืงืึธืก ืคื•ืŸ ืึธืจื’ืึทื ื™ื™ื–ื™ื ื’ ืึท SAN.

iSCSI ื”ืื˜ ืึท "ืคึผืจืขืžื™ืข" ืึธืคึผืฆื™ืข - ืคื™ื‘ืจืข ื˜ืฉืึทื ื ืขืœ ืคึผืจืึธื˜ืึธืงืึธืœ (ืคืงืคึผ). SAN ื ื™ืฆืŸ FCP ืื™ื– ื’ืขื‘ื•ื™ื˜ ืื•ื™ืฃ ื“ืขื“ืึทืงื™ื™ื˜ืึทื“ ืคื™ื‘ืจืข-ืึทืคึผื˜ื™ืง ืงืึธืžื•ื ื™ืงืึทืฆื™ืข ืฉื•ืจื•ืช. ื“ืขื ืฆื•ื’ืึทื ื’ ืจื™ืงื•ื•ื™ื™ืขืจื– ื ืึธืš ืึธืคึผื˜ื™ืฉ ื ืขืฅ ืขืงื•ื•ื™ืคึผืžืขื ื˜, ืึธื‘ืขืจ ืื™ื– ืกื˜ืึทื‘ื™ืœ ืื•ืŸ ื”ื•ื™ืš ื˜ืจื•ืคึผื•ื˜.

ืขืก ื–ืขื ืขืŸ ืคื™ืœืข ืคึผืจืึธื˜ืึธืงืึธืœืก ืคึฟืึทืจ ืฉื™ืงื˜ SCSI ืงืึทืžืึทื ื“ื– ืื™ื‘ืขืจ ืงืึธืžืคึผื™ื•ื˜ืขืจ ื ืขื˜ื•ื•ืึธืจืงืก. ืึธื‘ืขืจ, ืขืก ืื™ื– ื‘ืœื•ื™ื– ืื™ื™ืŸ ื ืึธืจืžืึทืœ ื•ื•ืึธืก ืกืึทืœื•ื•ื– ื“ื™ ืคืึทืจืงืขืจื˜ ืคึผืจืึธื‘ืœืขื ืื•ืŸ ืึทืœืึทื•ื– ืื™ืจ ืฆื• ืฉื™ืงืŸ IP ืคึผืึทืงื™ืฅ ืื™ื‘ืขืจ ื“ื™ SCSI ื•ื™ื˜ืึธื‘ื•ืก - IP ืื™ื‘ืขืจ SCSI.

ืจื•ื‘ึฟ SAN ืคึผืจืึธื˜ืึธืงืึธืœืก ื ื•ืฆืŸ ื“ื™ SCSI ื‘ืึทืคึฟืขืœืŸ ืฉื˜ืขืœืŸ ืฆื• ืคื™ืจืŸ ื“ืจื™ื™ื•ื•ื–, ืึธื‘ืขืจ ืขืก ื–ืขื ืขืŸ ืื•ื™ืกื ืขืžืขืŸ, ืึทื–ืึท ื•ื•ื™ ื“ื™ ืคึผืฉื•ื˜ ATA ืื™ื‘ืขืจ ืขื˜ื”ืขืจื ืขื˜ (ืึทืึธืข). ื“ื™ AoE ืคึผืจืึธื˜ืึธืงืึธืœ ืกืขื ื“ื– ATA ืงืึทืžืึทื ื“ื– ืื™ืŸ ืขื˜ื”ืขืจื ืขื˜ ืคึผืึทืงื™ืฅ, ืึธื‘ืขืจ ื“ื™ ื“ืจื™ื™ื•ื•ื– ื“ืขืจืฉื™ื™ึทื ืขืŸ ื•ื•ื™ SCSI ืื™ืŸ ื“ื™ ืกื™ืกื˜ืขื.

ืžื™ื˜ ื“ื™ ืึทื“ื•ื•ืขื ื˜ ืคื•ืŸ NVM Express ื“ืจื™ื™ื•ื•ื–, iSCSI ืื•ืŸ FCP ืคึผืจืึธื˜ืึธืงืึธืœืก ื ื™ื˜ ืžืขืจ ื˜ืจืขืคืŸ ื“ื™ ืจืึทืคึผืึทื“ืœื™ ื’ืจืึธื•ื™ื ื’ ื‘ืื“ืขืจืคืขื ื™ืฉืŸ ืคื•ืŸ SSDs. ืฆื•ื•ื™ื™ ืกืึทืœื•ืฉืึทื ื– ื–ืขื ืขืŸ ืืจื•ื™ืก:

  • ื‘ืึทื–ื™ื™ึทื˜ื™ืงื•ื ื’ ืคื•ืŸ ื“ื™ ืคึผืกื™ ืขืงืกืคึผืจืขืกืก ื•ื™ื˜ืึธื‘ื•ืก ืึทืจื•ื™ืก ื“ื™ ืกืขืจื•ื•ืขืจ;
  • ืฉืึทืคื•ื ื’ ืคื•ืŸ ื“ื™ NVMe ืื™ื‘ืขืจ ืคืึทื‘ืจื™ืงืก ืคึผืจืึธื˜ืึธืงืึธืœ.

ืจื™ืžื•ื•ื•ื™ื ื’ ื“ื™ PCIe ื•ื™ื˜ืึธื‘ื•ืก ืงืจื™ื™ื™ืฅ ืงืึธืžืคึผืœืขืงืก ืกื•ื•ื™ื˜ืฉื™ื ื’ ื™ื™ึทื–ื ื•ื•ืึทืจื’ ืึธื‘ืขืจ ื˜ื•ื˜ ื ื™ืฉื˜ ื˜ื•ื™ืฉืŸ ื“ืขื ืคึผืจืึธื˜ืึธืงืึธืœ.

ื“ื™ NVMe ืื™ื‘ืขืจ ืคืึทื‘ืจื™ืงืก ืคึผืจืึธื˜ืึธืงืึธืœ ืื™ื– ื’ืขื•ื•ืืจืŸ ืึท ื’ื•ื˜ ืึธืœื˜ืขืจื ืึทื˜ื™ื•ื• ืฆื• iSCSI ืื•ืŸ FCP. NVMe-oF ื ื™ืฆื˜ ืึท ืคื™ื‘ืจืข ืึทืคึผื˜ื™ืง ืœื™ื ืง ืื•ืŸ ื“ื™ NVM Express ื‘ืึทืคึฟืขืœืŸ ืฉื˜ืขืœืŸ.

ื“ื“ืจ-ื˜

ื”ืงื“ืžื” ืฆื• SSD. ื˜ื™ื™ืœ 2. ืฆื•ื‘ื™ื ื“
ื“ื™ iSCSI ืื•ืŸ NVMe-oF ืกื˜ืึทื ื“ืึทืจื“ืก ืกืึธืœื•ื•ืข ื“ื™ ืคึผืจืึธื‘ืœืขื ืคื•ืŸ ืงืึทื ืขืงื˜ื™ื ื’ ื•ื•ื™ื™ึทื˜ ื“ืจื™ื™ื•ื•ื– ื•ื•ื™ ื”ื™ื’ืข ืึธื ืขืก, ื‘ืฉืขืช ื™ื ื˜ืขืœ ื’ืขื’ืื ื’ืขืŸ ื“ื™ ืื ื“ืขืจืข ื•ื•ืขื’ ืื•ืŸ ื’ืขื‘ืจืื›ื˜ ื“ื™ ื”ื™ื’ืข ืคืึธืจ ื•ื•ื™ ื ืึธืขื ื˜ ื•ื•ื™ ืžืขื’ืœืขืš ืฆื• ื“ื™ ืคึผืจืึทืกืขืกืขืจ. ื“ื™ ื‘ืจื™ืจื” ืื™ื– ื’ืขืคืืœืŸ ืื•ื™ืฃ ื“ื™ DIMM ืกืœืึธืฅ ืื™ืŸ ื•ื•ืึธืก ื“ื™ ื‘ืึทืจืึทืŸ ืื™ื– ืงืึธื ื ืขืงื˜ืขื“. ื“ื™ ืžืึทืงืกื™ืžื•ื DDR4 ื‘ืึทื ื“ื•ื•ื™ื“ื˜ ืื™ื– 25 GB / s, ื•ื•ืึธืก ืื™ื– ืคื™ืœ ืคืึทืกื˜ืขืจ ื•ื•ื™ ื“ื™ PCIe ื•ื™ื˜ืึธื‘ื•ืก. ื“ืึธืก ืื™ื– ื•ื•ื™ ื“ื™ Intelยฎ Optaneโ„ข DC Persistent Memory SSD ืื™ื– ื’ืขื‘ื•ื™ืจืŸ.

ื ืคึผืจืึธื˜ืึธืงืึธืœ ืื™ื– ื™ื ื•ื•ืขื ื˜ืึทื“ ืฆื• ืคืึทืจื‘ื™ื ื“ืŸ ืึท ืคืึธืจ ืฆื• DIMM ืกืœืึธืฅ ื“ื“ืจ-ื˜, ืคื™ื–ื™ืงืœื™ ืื•ืŸ ืขืœืขืงื˜ืจื™ืง ืงืึทืžืคึผืึทื˜ืึทื‘ืึทืœ ืžื™ื˜ DDR4, ืึธื‘ืขืจ ืจื™ืงื•ื•ื™ื™ืจื™ื ื’ ืึท ืกืคึผืขืฆื™ืขืœ ืงืึธื ื˜ืจืึธืœืœืขืจ ื•ื•ืึธืก ื–ืขื˜ ื“ื™ ื—ื™ืœื•ืง ืฆื•ื•ื™ืฉืŸ ืึท ื–ื›ึผืจื•ืŸ ื‘ืึทืจ ืื•ืŸ ืึท ืคืึธืจ. ื“ื™ ื’ื™ื›ืงื™ื™ึทื˜ ืคื•ืŸ ืึทืงืกืขืก ืฆื• ื“ื™ ืคืึธืจ ืื™ื– ื•ื•ื™ื™ื ื™ืงืขืจ ื•ื•ื™ ืฆื• ื‘ืึทืจืึทืŸ, ืึธื‘ืขืจ ืžืขืจ ื•ื•ื™ ืฆื• NVMe.

DDR-T ืื™ื– ื‘ืœื•ื™ื– ื‘ื ื™ืžืฆื ืžื™ื˜ Intelยฎ Cascade Lake ื“ื•ืจ ืคึผืจืึทืกืขืกืขืจื– ืึธื“ืขืจ ืฉืคึผืขื˜ืขืจ.

ืกืึธืฃ

ื›ึผืžืขื˜ ืึทืœืข ื™ื ื˜ืขืจืคื™ื™ืกื™ื– ื”ืึธื‘ืŸ ืงื•ืžืขืŸ ืึท ืœืึทื ื’ ื•ื•ืขื’ ืคื•ืŸ ืกื™ืจื™ืึทืœ ืฆื• ืคึผืึทืจืึทืœืขืœ ื“ืึทื˜ืŸ ื˜ืจืึทื ืกืžื™ืกื™ืข. SSD ืกืคึผื™ื“ื– ื–ืขื ืขืŸ ืกืงื™ื™ืจืึทืงืึทื˜ื™ื ื’, ื ืขื›ื˜ืŸ SSDs ื–ืขื ืขืŸ ืึท ื ื™ื™ึทื’ืขืจื™ืงื™ื™ึทื˜, ืื•ืŸ ื”ื™ื™ึทื ื˜ NVMe ืื™ื– ื ื™ื˜ ืžืขืจ ืึท ื™ื‘ืขืจืจืึทืฉืŸ.

ืื™ืŸ ืื•ื ื“ื–ืขืจ ืœืึทื‘ืึธืจืึทื˜ืึธืจื™ืข ืื•ื™ืกืงืœื™ื™ึทื‘ืŸ ืœืึทื‘ ืื™ืจ ืงืขื ืขืŸ ืคึผืจื•ื‘ื™ืจืŸ SSD ืื•ืŸ NVMe ื“ืจื™ื™ื•ื•ื– ื–ื™ืš.

ื‘ืœื•ื™ื– ืจืขื’ื™ืกื˜ืจื™ืจื˜ ื ื™ืฆืขืจืก ืงืขื ืขืŸ ืึธื ื˜ื™ื™ืœ ื ืขืžืขืŸ ืื™ืŸ ื“ื™ ื™ื‘ืขืจื‘ืœื™ืง. ืกื™ื™ืŸ ืืจื™ื™ืŸื‘ื™ื˜ืข.

ื•ื•ืขื˜ NVMe ื“ืจื™ื™ื•ื•ื– ืคืึทืจื‘ื™ื™ึทื˜ืŸ ืงืœืึทืกื™ืฉ ืกืกื“ืก ืื™ืŸ ื“ืขื ืœืขื‘ืŸ ืฆื•ืงื•ื ืคึฟื˜?

  • ืงืกื ื•ืžืงืก%ื™ืึธ100

  • ืงืกื ื•ืžืงืก%No80

180 ื‘ืื ื•ืฆืขืจ ื”ืื‘ืŸ ื’ืขืฉื˜ื™ืžื˜. 28 ื‘ืื ื•ืฆืขืจ ื”ืื‘ืŸ ื–ื™ืš ืืคื’ืขื”ืืœื˜ืŸ.

ืžืงื•ืจ: www.habr.com

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