I-Evolution ye-SAS Connector Technology: Uguquko Lwesitoreji ukusuka ku-Parallel kuya ku-High-Speed Serial

I-Evolution ye-SAS Connector Technology: Uguquko Lwesitoreji ukusuka ku-Parallel kuya ku-High-Speed Serial

Izinhlelo zokugcina zanamuhla azikhuli nje kuphela ezingeni le-terabit, zinezilinganiso eziphakeme zokudluliswa kwedatha, kodwa futhi zisebenzisa amandla amancane futhi zithatha isikhala esincane. Lezi zinhlelo futhi zidinga ukuxhumana okungcono ukunikeza ukuguquguquka okwengeziwe. Abaklami badinga ukuxhumana okuncane ukuze banikeze amanani adingekayo amanje noma azayo okudlulisa idatha. Futhi kuthatha isikhathi esingaphezu kosuku ukuthi imininingwane izalwe, ithuthuke futhi ivuthwe kancane kancane. Ikakhulukazi embonini ye-IT, noma ibuphi ubuchwepheshe buhlala buthuthuka futhi buthuthuka, futhi ukucaciswa kwe-SAS (Serial Attached SCSI, Serial SCSI) kuyahluka. Njengomlandeli wokuhambisana ne-SCSI, ukucaciswa kwe-SAS bekulokhu kumbono wabantu isikhathi eside.

Kule minyaka i-SAS ikhona, imininingwane yayo ibilokhu ithuthukiswa ngokuqhubekayo. Nakuba iphrothokholi eyisisekelo ihlale ingashintshile kakhulu, ukucaciswa kwezixhumi zokusebenzelana kwangaphandle kube nezinguquko eziningi. Lokhu ukulungisa okwenziwa yi-SAS ukuze ivumelane nesimo semakethe. Isibonelo, ukuvela kokucaciswa kwesixhumi okufana ne-MINI SAS 8087, SFF-8643, kanye ne-SFF-8654 kuziguqule kakhulu izixazululo zekhebula njengoba i-SAS ishintsha isuka ku-parallel kuya kubuchwepheshe be-serial. Ngaphambilini, i-SCSI ehambisanayo ibingasebenza kufikela ku-320 Mb/s eziteshini eziyi-16 ngemodi ene-single-end noma ehlukile. Njengamanje, i-interface ye-SAS 3.0, esasetshenziswa kabanzi ekugcinweni kwebhizinisi, inikeza umkhawulokudonsa oshesha ngokuphindwe kabili kune-SAS 3 engathuthukisiwe isikhathi eside, efinyelela ku-24 Gbps, cishe u-75% womkhawulokudonsa wedrayivu evamile ye-PCIe 3.0 x4. Isixhumi sakamuva se-MiniSAS HD esichazwe ekucacisweni kwe-SAS-4 sincane ngosayizi futhi singafinyelela ukuminyana okuphezulu. Usayizi wesixhumi sakamuva se-Mini-SAS HD siyingxenye yesixhumi sokuqala se-SCSI kanye no-70% wesixhumi se-SAS. Ngokungafani nentambo yokuqala ye-SCSI parallel, zombili i-SAS ne-Mini-SAS HD zineziteshi ezine. Kodwa-ke, kanye nesivinini esiphezulu, ukuminyana okuphezulu, nokuguquguquka okukhulu, kubuye kube nokwanda kobunzima. Ngenxa yokuthi isixhumi sincane, abakhiqizi bezintambo, izihlanganisi zekhebula, nabaklami besistimu kufanele banake kakhulu imingcele yobuqotho besignali yawo wonke ukuhlanganiswa kwekhebula.

Zonke izinhlobo zezintambo nezixhumi zakwa-SAS, kulula ngempela ukuzenza zibukeke zikhazimula… Zingaki ozibonile? Lezo ezisetshenziswa embonini, nalezo zemikhiqizo yabathengi? Isibonelo, ikhebula le-MINI SAS 8087 kuya ku-4X SATA 7P Male, ikhebula le-SFF-8643 kuye ku-SFF-8482, i-SlimSAS SFF-8654 8i, njll.

Ububanzi (kwesokunxele, maphakathi) bekhebuli ye-Mini-SAS HD bungu-70% balolo lwekhebula ye-SAS (kwesokudla).

Akubona bonke abakhiqizi bezintambo abangahlinzeka ngamasignali ekhwalithi ephezulu ukuze bahlangabezane nezidingo zesignali yobuqotho bezinhlelo zokugcina. Abakhiqizi bamakhebula badinga ukuhlinzeka ngezixazululo zekhwalithi ephezulu nezingabizi ezinhlelweni zakamuva zokugcina. Isibonelo, ikhebuli ye-SFF-8087 kuye ku-SFF-8088 noma ikhebuli ye-MCIO 8i kuya ku-2 OCuLink 4i. Ukuze kukhiqizwe izingxenye zekhebula ezinesivinini esikhulu ezizinzile neziqinile, izici ezimbalwa zidinga ukucatshangelwa. Ngaphezu kokugcina ikhwalithi yokucubungula kanye nenqubo yokucubungula, abaklami nabo badinga ukunaka kakhulu imingcele yobuqotho besignali, okuyiyona kanye eyenza izintambo zedivayisi yesitoreji esinesivinini esikhulu zenzeke.