PCIe vs SAS vs SATA: Kev Sib Ntaus Sib Tua ntawm Next-Generation Storage Interface Technologies

PCIe vs SAS vs SATA: Kev Sib Ntaus Sib Tua ntawm Next-Generation Storage Interface Technologies

Tam sim no, cov hard disks cia 2.5-nti/3.5-nti hauv kev lag luam feem ntau muaj peb lub interfaces: PCIe, SAS thiab SATA. Hauv cov ntawv thov chaw khaws ntaub ntawv, kev daws teeb meem kev sib txuas xws li MINI SAS 8087 rau 4X SATA 7P Txiv neej cable thiab MINI SAS 8087 rau SLIM SAS 8654 4I yog siv dav. Yav dhau los, kev txhim kho ntawm kev hloov kho chaw khaws ntaub ntawv tau tsav los ntawm cov tsev kawm ntawv lossis cov koom haum xws li IEEE lossis OIF-CEI. Txawm li cas los xij, kev hloov pauv tseem ceeb tau tshwm sim niaj hnub no. Cov neeg ua haujlwm chaw khaws ntaub ntawv loj xws li Amazon, Apple, Facebook, Google thiab Microsoft tam sim no tab tom tsav tsheb kev txhim kho thev naus laus zis.

Txog PCIe

PCIe yog qhov tsis muaj qhov tsis ntseeg tias yog tus qauv tsheb npav kis tau nrov tshaj plaws, thiab nws cov kev hloov kho tshiab tau tshwm sim ntau zaus hauv xyoo tas los no. Txawm hais tias qhov kev hloov kho tshiab tau nrawm dua, cov kev hloov pauv hauv txhua tiam ntawm PCIe specification yog qhov tseem ceeb heev, tshwj xeeb tshaj yog nrog bandwidth ob npaug txhua lub sijhawm thiab tswj kev sib raug zoo nrog txhua tiam dhau los.

PCIe 6.0 tsis muaj qhov tshwj xeeb. Txawm hais tias nws rov qab sib xws nrog PCIe 5.0/4.0/3.0/2.0/1.0, tus nqi ntaub ntawv lossis I/O bandwidth yuav ob npaug ntxiv rau 64 GT/s. Qhov tseeb ib txoj kev bandwidth ntawm PCIe 6.0 x1 yog 8 GB/s, ib txoj kev bandwidth ntawm PCIe 6.0 x16 yog 128 GB/s, thiab bidirectional bandwidth yog 256 GB/s. Lub interface ceev ceev no kuj tau ua rau muaj kev sib txuas tshiab xws li MCIO 8I rau 2 OCuLink 4i cable, PCIe Slimline SAS 4.0 38-Pin SFF-8654 4i rau 4 SATA 7-Pin Right-Angled Cable, thiab lwm yam.

Txog SAS
Lub Serial Attached SCSI interface (Serial Attached SCSI, SAS) yog lub thev naus laus zis SCSI tiam tom ntej. Ib yam li cov hard drives Serial ATA (SATA) nrov tam sim no, SAS kuj siv cov thev naus laus zis serial los ua kom muaj kev sib kis ceev dua thiab txhim kho qhov chaw sab hauv los ntawm kev luv cov kab sib txuas. SAS yog lub interface tshiab kiag li tsim tom qab parallel SCSI interface. Hauv cov txheej txheem khaws cia niaj hnub no, cov cables sib txuas xws li MINI SAS 8087 rau 8482 CABLE, MINI SAS 8087 rau 4X SATA 7P poj niam cable, thiab lwm yam, ua lub luag haujlwm tseem ceeb. Tshwj xeeb tshaj yog txoj kab sib txuas ntawm MINI SAS 8087 rau 4X SATA 7P txoj kab poj niam cable yog qhov nrov tshwj xeeb hauv cov chaw server nrog qhov chaw tsawg.

Hais txog SATA

SATA sawv cev rau Serial ATA (Serial Advanced Technology Attachment), tseem hu ua serial ATA. Nws yog ib qho hard drive interface specification ua ke los ntawm Intel, IBM, Dell, APT, Maxtor thiab Seagate.

Raws li qhov siv dav tshaj plaws ntawm hard disk interface hauv kev ua lag luam tam sim no, qhov zoo tshaj plaws ntawm SATA 3.0 interface yuav tsum yog nws qhov kev loj hlob. Ob qho tib si 2.5-nti SSDs thiab HDDs siv qhov interface no. Hauv cov ntsiab lus ntawm kev sib txuas, MINI SAS 8087 rau 4X SATA 7P Poj Niam nrog Sideload muab kev daws teeb meem yooj yim rau sab, thaum MINI SAS 8087 rau 4X SATA 7P txoj cai-lub kaum sab xis poj niam cable yog tsim rau cov xwm txheej nrog qhov chaw tsawg. Lub theoretical kis bandwidth yog 6 Gbps. Txawm hais tias nws muaj qee qhov sib txawv piv rau 10 Gbps thiab 32 Gbps bandwidth ntawm lub interface tshiab, 2.5-nti SSDs tuaj yeem ua tau raws li cov kev xav tau txhua hnub ntawm cov neeg siv feem ntau, thiab qhov nyeem thiab sau ceev ntawm kwv yees li 500 MB / s txaus.

Cov ntaub ntawv hauv ntiaj teb Is Taws Nem tab tom nce ntxiv sai heev. Piv nrog rau cov interfaces tam sim no, PCI Express interface tuaj yeem muab kev xa cov ntaub ntawv sai dua thiab latency luv dua, txhim kho qhov ua tau zoo thiab kev ua lag luam ntawm cov koom haum. Cov txiaj ntsig yuav dhau los ua qhov tseem ceeb. Tib lub sijhawm, cov kev daws teeb meem kev sib txuas tshiab xws li MINI SAS 8087 rau SAS SFF-8482 Two-in-One cable thiab MINI SAS 8087 rau Oculink SAS 8611 4I kuj tseem thawb cov ciam teb ntawm cov thev naus laus zis cia khoom. Tshwj xeeb tshaj yog nyob rau hauv cov chaw cia khoom siab, cov qauv tsim tshwj xeeb xws li MINI SAS 8087 Left-angled rau 4X SATA 7P Poj Niam 90-Degree tau daws cov teeb meem xov hlau.