Best ulwazi yenethiwekhi. SSD Yeyiphi ukukhetha?

Ngokuqhelekileyo, abantu abaninzi bafuna iindlela ukwandisa isantya kunye nokusebenza PC yakho. Ngako oko, ngokuqhelekileyo libhekisela ukuthenga iprosesa kunye nemizobo ikhadi elitsha, ukwandisa isixa RAM, yokunyusa onke amacandelo, njalo-njalo. Kodwa abantu abaninzi silibale ngayo ngokubaluleka hard disk, ngenxa yokuba isantya lokufikelela kulwazi Isalathisi ngokufanelekileyo omkhulu PC-high speed. Isiphumo kule meko kukuba ukuthenga SSD-drive, indawo eqhelekileyo HDD-drives. Makhe sibone ukuba uhlobo SSD kwaye khetha ntoni kwesi sikhokelo.

Yonke ezishelfini

1. Kwindawo yokuqala, ukhetho lwe SSD-drive kufuneka anikele ingqalelo ukubhala nokufunda we disc. Sinokuthi oku benchmark for onke nzima drives. Zama ukuthenga SSD-drive kunye baseline aphezulu.
2. Inani IOPS - igalelo kunye neziphumo yedatha ngomzuzwana. Ngokwendalo, ayanda inani isalathisi kakuhle kuchaphazela operation drive i imali ezinkulu ze data. Ukuba idiski enjalo ukufakela inkqubo yokusebenza, kuya kuqalisa ngokoqobo "ukubaleka".
3. Controller - umbindi drive. Ukukhetha isilawuli uya kuphendula ngokupheleleyo umbuzo ukuba ukhethe indlela SSD-drive. Kuyanconywa ukunika abalukhethayo njengesiqinisekiso: Intel, SandForce kunye Marvell. data nabaqondisi umenzi eyiyo, ixesha elide yaye olusebenzayo.
4. Kuyimfuneko ukumisela umyalelo, baya lojongano data ngayo. Namhlanje imakethi zilandelayo iintlobo akhoyo: SATAII, SATAIII kunye PCIe. Eyokuqala kukade icangcisiwe, ngaphandle umhla, ukuze icala lakhe angeke ukubukela. Le yesibini - le ndlela ifanelekileyo ukuba ngaba ungathanda ukuba ngumntu ukufakelwa abaqhubi kunye nezinye iyandiyolisa. Le PCIe interface ifuna ukufakelwa abaqhubi ezifanelekileyo, kuya kuba unzima ngakumbi kule nkqubo, kodwa nokhupho zonke kubhabho. Esi sisombululo into ekhwankqisayo bonke, elinye mathuba lubalulekileyo a SSD bakhetha.
5. Imemori neetshiphusi. Emarikeni kukho iintlobo zilandelayo: MLC kunye SLC. Le ndlela yesibini lubiza kakhulu ngakumbi, kodwa ukusebenza kwalo phezu izihlandlo eziliqela. Kodwa phantsi ukusetyenziswa MLC chips eziqhelekileyo ubomi inkonzo yabo elinokuthatha ukuya kuma kwiminyaka 4-5. Le nto ayikho ingongoma ebalulekileyo kukuba ukukhetha indlela SSD-drive, xa kuthelekiswa, umzekelo, kunye esisebenza. Kodwa yokukhetha memory iitshiphusi kusafuneka isigqibo.
6. Ukubakho Imisebenzi eyongezelelweyo efana ECC, SMART, lungisa, evumela ukusetyenziswa elide kakhulu drive. Le misebenzi uyakwazi ukucoca disks uthuli, kuquka ubuchwepheshe banxibe-sokulinganisa ukunika ulwazi malunga nemeko disk, njalo-njalo.
7. Amandla, ingakumbi SSD, ichaphazela kakhulu ixabiso. Kuyanconywa ukuba uthenge disc kunye nomthamo 70-90 GB. Isixa indawo kwi diski kuyimfuneko ukusebenza ekuphenduleni umbuzo ukuba ukhethe SSD.
8. MTBF - njani iiyure ezininzi zizonke ziya kuhlala drive. Ukuba iphakamile MTBF, liba lide umsebenzi drive. Ngokuqhelekileyo, eli xabiso million 2.1 iiyure.

Faka theory ukuba benze

Musa ukufuna ukuba uthenge imodeli kuyabiza kakhulu, ukunikela ingqalelo kwiimpawu kwaye kuphela aqale ndibuza ixabiso. Ukuphendula lo mbuzo of "ukukhetha indlela SSD", kufuneka wathi ukuba ukhangelo elungileyo, unako ukufumana khona ukhetho omkhulu ngexabiso elifikelelekayo. Eyona nto ibalulekileyo - musa ukulibala; yintoni iikhrayitheriya kufuneka bakhokelwe ngexesha elifanayo.