Disk iri-iri hari: abin da shi ne da kuma dalilin da ya sa ya zama dole?

Mutane da yawa masu amfani sun ji labarin irin wannan abu a matsayin hari faifai iri-iri, amma a yi sosai 'yan mutane a halin yanzu tunanin abin da shi ne. Amma kamar yadda shi dai itace, babu wani abu wuya a nan. Bari mu bincika jigon da lokaci, da cewa shi ne, a kan yatsu, a kan tushen da bayani bayanai ga talakawan dan kasa.

Menene faifai iri-iri hari?

Don fara, la'akari da sauran magani da aka miƙa online wallafe. Disk iri-iri - cikkaken ajiya tsarin, wanda ya kunshi mai cuta na biyu ko fiye da wuya tafiyarwa, ma'aikata, ko wa ƙara gudun samun adana bayanai, ko ga kwafi, misali, idan ka ajiye kwafin.

A wannan tare da adadin koran cikin sharuddan shigarwa rubuce yana da wani hani. A duk ya dogara da yawan sadarwa da goyan bayan da motherboard. A gaskiya, me ya sa ake amfani da faifai iri-iri hari? Yana da daraja a lura da cewa a cikin shugabanci na fasahar raya (sha'anin wato wuya tafiyarwa), sun dade da aka daskarewa a daya aya (dogara sanda gudun 7200 rpm. / Min, cache size, da sauransu. D.). An togiya a wannan batun ne kawai SSD model, amma sun kawai kara a juz'i na samar da yafi. A lokaci guda a samar da sarrafawa ko RAM alluna ci gaba fiye ri. Saboda haka, ta yin amfani da hari-iri-iri da aka kwashe karuwa girma yi a lokacin da samun dama da wuya faifai tafiyarwa.

Disk iri-iri hari: iri, manufar

Amma ga iri-iri da kansu, su za a iya yanaye raba da lambobin amfani (0, 1, 2, da sauransu. D.). Kowane yawan yayi dace da aiwatar da daya daga cikin da'awar ayyuka.

Babban a cikin wannan rarrabuwa ne faifai iri-iri tare da lambobin 0 kuma 1 (nan, shi za a gane me ya sa), saboda shi ne sanya musu da babban matsala.

A lokacin da samar iri-iri tare da mafi tafiyarwa da alaka da farko yi amfani da BIOS saitin, inda da sashe SATA hari sanyi, kafa wani darajar. Yana da muhimmanci a lura da cewa alaka tafiyarwa dole ne daidai da wannan sigogi cikin sharuddan girma, dubawa, connectivity, cache, da sauransu. D.

Hari 0 (striping)

Zero faifai iri-iri suna inherently tsara don bugun samun adana bayanai (rubuce-rubuce ko karatu). Sun yawanci iya zama a jummai daga biyu zuwa hudu tafiyarwa.

Amma a nan babban matsalar shi ne cewa a lokacin da ka share data a kan wani faifai, shi vuya, da sauransu. The bayanai da aka rubuta a cikin tubalan alternately a kan kowane faifai, da kuma cika karuwa ne kai tsaye na gwargwado ga yawan tafiyarwa (ie, hudu fayafai sau biyu kamar yadda azumi kamar yadda biyu). Amma a nan shi ne da asarar bayanai da aka alaka ne kawai da gaskiyar cewa raka'a iya zama a kan daban-daban tafiyarwa, ko da yake mai amfani ne da "Explorer," ganin fayiloli a cikin al'ada nuni.

hari 1

Disk iri-iri tare da guda nadi kasance a cikin category na Mirroring (mirroring), kuma ku bauta wa fãce da duplicating data.

Wajen magana, a irin wannan halin da ake ciki mai amfani hasarar wasu yi, amma zai iya zama da kyawawan tabbata cewa tare da bacewar data daga daya sashen, su za a adana a wani.

Hari 2 da kuma sama

Iri-iri tare da lambobi 2 da kuma sama ne dual manufar. A daya hannun, sun aka tsara don yin rikodin bayanai a kan sauran - yi amfani don gyara kuskure.

A wasu kalmomin, da irin wannan ajiya iri-iri hada damar hari 0 kuma hari 1, amma a tsakanin masu amfani da kwamfuta ba ji dadin mai girma shahararsa, ko da yake dalilin da aikin ne da yin amfani da da Hamming code.

Mene ne mafi alhẽri ga amfani a yi?

Hakika, idan kwamfutarka ya kamata su yi amfani da hanya-m shirye-shirye, kamar zamani wasanni, shi ne mafi alhẽri amfani iri-iri na hari 0. Idan ka yi aiki tare da muhimmanci bayanai da za a adana a wani hanya, za su shafi iri-iri hari 1. A ra'ayi na cewa wani gungu na lambobin biyu ko fiye da rare ko ba, su yi amfani da aka ƙaddara ta kawai mai amfani. Af, da yin amfani da null tsararru ne m, kuma a cikin taron da cewa mai amfani da akai-akai lodi da multimedia fayiloli zuwa kwamfuta, ka ce, fina-finai, ko kuma music tare da high bitrate ga wani MP3 ko FLAC misali.

A sauran za su dõgara a kan nasu zaɓuɓɓukanka da kuma bukatun. Shi ne daga wannan, kuma zai dogara ne a kan yin amfani da wani musamman tsararru. Kuma ba shakka, a lõkacin da kafa m ne mafi alhẽri ba fin so SSD woje kamar yadda idan aka kwatanta da na al'ada rumbunka tafiyarwa an riga farko da hakan rikodi da kuma karatu gudun. Amma dole ne su zama cikakken m, a da halaye da kuma sigogi, ko a hade da connectable kawai zai yi aiki ba. Kuma shi ne wannan shi ne daya daga cikin mafi muhimmanci yanayi. Don haka wajibi ne su kula da wannan al'amari.