Ukuvela Kobuchwepheshe Besixhumi se-SAS: Uguquko Lwesitoreji Kusukela Ku-Parallel Kuya Ku-High-Speed ​​Serial

Ukuvela Kobuchwepheshe Besixhumi se-SAS: Uguquko Lwesitoreji Kusukela Ku-Parallel Kuya Ku-High-Speed ​​Serial

Izinhlelo zokugcina zanamuhla azikhuli nje kuphela ezingeni le-terabit, zinezinga eliphezulu lokudlulisa idatha, kodwa futhi zisebenzisa amandla amancane futhi zithatha isikhala esincane. Lezi zinhlelo zidinga nokuxhumeka okungcono ukuze zinikeze ukuguquguquka okwengeziwe. Abaklami badinga ukuxhumana okuncane ukuze banikeze amazinga okudlulisa idatha adingekayo njengamanje noma esikhathini esizayo. Futhi kuthatha isikhathi esingaphezu kosuku ukuthi imininingwane izalwe, ithuthuke futhi ivuthwe kancane kancane. Ikakhulukazi embonini ye-IT, noma yiluphi ubuchwepheshe buhlala buthuthuka futhi bushintsha, futhi imininingwane ye-SAS (Serial Attached SCSI, Serial SCSI) ayihlukile. Njengomlandeli we-SCSI efanayo, imininingwane ye-SAS ibilokhu isembonweni wabantu isikhathi esithile.

Eminyakeni edlule i-SAS ikhona, imininingwane yayo iye yathuthukiswa njalo. Nakuba inqubo eyisisekelo ingashintshi kakhulu, imininingwane yezixhumi zesikhombimsebenzisi sangaphandle iye yashintsha kakhulu. Lokhu ukulungiswa okwenziwe yi-SAS ukuze ivumelane nesimo semakethe. Isibonelo, ukuvela kwemininingwane yezixhumi njenge-MINI SAS 8087, i-SFF-8643, kanye ne-SFF-8654 kushintshe kakhulu izixazululo zekhebula njengoba i-SAS ishintshe kusuka kubuchwepheshe obuhambisanayo kuya kobuchungechunge. Ngaphambilini, i-SCSI ehambisanayo yayingasebenza kufika ku-320 Mb/s ngaphezulu kweziteshi ezingu-16 kumodi eyodwa noma ehlukile. Njengamanje, isikhombimsebenzisi se-SAS 3.0, esisasetshenziswa kabanzi kwisitoreji sebhizinisi, sinikeza i-bandwidth esheshayo kabili kune-SAS 3 engathuthukisiwe isikhathi eside, efinyelela ku-24 Gbps, okucishe kube ngu-75% we-bandwidth yedrayivu evamile ye-PCIe 3.0 x4 solid-state. Isixhumi sakamuva se-MiniSAS HD esichazwe ku-SAS-4 sincane ngobukhulu futhi singafinyelela ukuminyana okuphezulu. Usayizi wesixhumi sakamuva se-Mini-SAS HD uyingxenye yesixhumi sokuqala se-SCSI kanye no-70% wesixhumi se-SAS. Ngokungafani nekhebula lokuqala le-SCSI parallel, zombili i-SAS kanye ne-Mini-SAS HD zineziteshi ezine. Kodwa-ke, kanye nesivinini esiphezulu, ukuminyana okuphezulu, kanye nokuguquguquka okukhulu, kukhona nokwanda kobunzima. Ngenxa yokuthi isixhumi sincane, abakhiqizi bekhebula, abahlanganisi bekhebula, kanye nabaklami besistimu kumele banake kakhulu amapharamitha obuqotho besignali yekhebula lonke.

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

Ububanzi (kwesobunxele, phakathi) bekhebula le-Mini-SAS HD bungu-70% wekhebula le-SAS (kwesokudla).

Akubona bonke abakhiqizi bekhebula abangahlinzeka ngezibonakaliso zesivinini esiphezulu ezisezingeni eliphezulu ukuze bahlangabezane nezidingo zobuqotho besignali zezinhlelo zokugcina. Abakhiqizi bekhebula badinga ukuhlinzeka ngezixazululo ezisezingeni eliphezulu nezingabizi kakhulu zezinhlelo zokugcina zakamuva. Isibonelo, ikhebula le-SFF-8087 kuya ku-SFF-8088 noma ikhebula le-MCIO 8i kuya ku-2 OCuLink 4i. Ukuze kukhiqizwe izingxenye zekhebula zesivinini esiphezulu ezizinzile nezihlala isikhathi eside, kunezinto eziningana okudingeka zicatshangelwe. Ngaphezu kokugcina ikhwalithi yokucubungula kanye nenqubo yokucubungula, abaklami badinga futhi ukunaka kakhulu imingcele yobuqotho besignali, okuyiyona kanye eyenza izintambo zedivayisi yokugcina yesivinini esiphezulu zanamuhla zibe nokwenzeka.