SSDs ko diski masu fa'ida kamar yadda aka sansu, ba sabuwar fasaha bace gaba daya tunda ta kasance a kasuwa tsawon shekaru, amma idan aka kwatanta da HDDs (disks masu wuya) har yanzu jariri ne a diapers. Koyaya, da Rasberi Pi Ba shi da HDD ko SSD, sai dai SD, wanda ya kasance katin ƙwaƙwalwar ajiya ... kamar pendrive, a cewar Wikipedia:
Secure Digital (SD) shine tsarin katin ƙwaƙwalwa don ƙananan na'urori kamar kyamarori na dijital, wayoyin hannu, kwamfutar tafi-da-gidanka, har ma da kayan wasan (duka tebur da šaukuwa), da sauransu.
Idan kana zaune a Spain kuma ka yanke shawarar siyan Rasberi Pi a can a Spain, kamar dai kana zaune a cikin wata ƙasa kuma ka zaɓi eBay, Amazon ko kowane kantin sayar da gida, Rasberi Pi naka zai zo tare da SD, wanda ke da fa'ida da rashin amfani. Da farko dai, a wasu lokuta zaiyi aiki da sauri fiye da HDD, amma yana da ɗan gajeren rayuwa mai amfani, ma'ana, zai rage ƙasa, saboda haka ga shawarwari da yawa don tsawaita rayuwar SD na Rasberi Pi.
Babban matsala tare da katunan SD shine iyakantaccen iya rubutu. Wato, zamu iya rubuta adadi mafi yawa na lokuta ko bayanai a cikin wani yanki / sarari, bawai zamu iya rubutawa bane, sharewa, sake rubutawa da sauransu ba har abada, ba zamu iya yin hakan ba har abada, lokaci zai zo lokacin da ba zai iya ba kasance a ci gaba da rubuta wa SD.
Sabili da haka, ga wasu nasihu don ƙara rayuwar SD ɗinmu akan Rasberi Pi:
- Babban ƙarfin SD: Abu ne mai sauki, idan muna da 8GB SD muna da sararin X don rubuta bayanai, wannan sararin yana da iyakantaccen karance-karance da rubutu, amma idan SD din (misali) 16GB ne to zamu sami karin sarari, wanda ke fassara zuwa babu shi zai zama dole a rubuta sau da yawa a cikin yanki ɗaya, ma'ana, akwai ƙarin sarari a cikin SD inda za'a sanya bayanai.
- Sayi daga manyan kamfanoni: Ba sirri bane, kamar yadda yake faruwa tare da SD yana faruwa tare da wasu kayan haɗin kayan. Misali, wayoyin komai da ruwanka, zamu iya siyan na China wanda zai biya mu $ 30 kuma a bayyane bisa ga kayan aikin kayan aikin zai iya yin kusan iri daya da $ 300 Nexus, amma, a cikin dogon lokaci ba safiyar alama (Sinawa) ba aiki. Tare da SD iri ɗaya ne, akwai masana'antun da yawa amma an san su azaman alama ce mai kyau, tare da inganci ba su da yawa. Yana da kyau koyaushe a bincika Google don masana'antun SD tare da inganci mai kyau, sannan a duba idan wani kantin sayar da Rasberi Pi a Spain ko yankinku yana da waɗannan SD ɗin a cikin kaya. Aukar da kanka game da ƙimar kuɗi.
- Sanya Linux don rubuta ƙarin zuwa RAM da ƙasa da SD: Mai kama da aya 1, ƙasa da SD an rubuta mafi kyau. Zamu iya cimma nasarar rubutu da yawa zuwa RAM da ƙasa da SD ta amfani da su tmpfs
Amfani da tmpfs
Don gaya wa tsarin ya ƙara rubutawa zuwa RAM kuma ƙasa da na'urar ajiya (a wannan yanayin, SD) kawai ƙara layi zuwa / sauransu / fstab. A wannan layin muna nuna wane fayil da muke son sakawa a cikin RAM ba cikin SD ba, misali:
tmpfs /var/log tmpfs defaults,noatime,nosuid,mode=0755,size=100m 0 0
Af, idan kuna buƙatar fiye da 100mb don wannan bangare, gyara ƙimar a kan layin, sa matsakaicin girma muna tabbatar da cewa baya cinye dukkan RAM. To sake kunna kwamfutar kuma hakane.
Bayani, duk abin da aka saka tare da tmpfs (misali, / var / rajistan ayyukan) zasu ɓace lokacin da aka sake kunna kwamfutar, ma'ana, lokacin da suka sake farawa ba zasu sami rajistan ayyukan ba, zasu zama marasa amfani, da sauransu don kowane folda suna hawa.
Karshe!
Wadannan nasihu sun fi dacewa don Rasberi Pi kazalika idan suna da PiPad. Ban sani ba ga abin da sauran kayan aikin zasu yi amfani saboda, ban san wasu kayan aikin da ba sa aiki tare da HDD ko SSD ba kuma a tare da katin SD, ku zo, sai dai idan ba kyamarar ba ce 🙂
Ina fatan kun sami abin ban sha'awa, musamman sanin ƙarshen yadda tmpfs ke aiki
Kyakkyawan
Wani zaɓi don ƙara rayuwar mai amfani ta SD, shine ƙaddamar da sashin tsarin daga SD zuwa USB HD, kuma amfani da SD azaman taya ...
Mutum, banyi tsammanin mafita ce mai kyau don ɗora rajistan ayyukan a cikin ƙwaƙwalwar ba, tunda RPi yana da 512 MB na RAM kawai ... Abin da Laegnur ya faɗi yana da ƙwarewa sosai, yi amfani da SD azaman taya da mawuyacin diski na waje don / var kuma har ma / gida.
Yana da kyau a sanar da cewa ba duk SDs bane suka dace da Rasberi Pi, na bar hanyar haɗi inda yake cikakken bayanin SDs ɗin da basu dace ba.
http://elinux.org/RPi_SD_cards#SD_card_performance.
Kyakkyawan labari, Ina tsammanin kowane zaɓi yana da fa'ida da rashin fa'ida, sanya rumbun kwamfutarka a cikin rasberi yana cire damar, ƙara girmanta, da dai sauransu. Ina tsammanin mafi kyawu shine barin shi kamar yadda yake, duk da haka SD ba su da arha.
Na gode,
Kyakkyawan
Wannan shine tsokacina na 1 akan wannan gidan yanar gizon da nake bi. Ina da RPI da ke aiki a matsayin sabar 24 × 7 tare da amule da watsawa da aka haɗa zuwa HD, hanyar da aka ba da shawarar su game da batun amfani da RPI a matsayin sabar 24 × 7, shine cewa a cikin SD kawai akwai / boot bangare kuma cewa duk sauran abubuwanda aka raba sune cikin HD din, kasancewar hakan ya zama dole, a hada HD din (kamar yadda Laegnur ya fada)
Kuma har yanzu, ban sami wata matsala ba ... Kuma hakan yana dawwama .... 😉
Kwanan nan na ƙara SSD da HD a kan kwamfutar ta ta tebur kuma wannan cikakke ne a gare ni.
A SSD na na sanya Wheezy a cikin ext4 kuma na ƙara zuwa fstab
UUID = xxx / ext4 tsoho, lokaci, jinkiri, jefar da 0 1
tmpfs / tmp tmpfs Predefinicións, noexec, ƙararrawa 0 0
tmpfs / var / gudu girman tmpfs = 1024M, nr_inodes = 10k, yanayin = 777 0 0
tmpfs / var / kulle tmpfs girman = 1024M, nr_inodes = 10k, yanayin = 777 0 0
tmpfs / var / log tmpfs girman = 1024M, nr_inodes = 10k, yanayin = 777 0 0
kuma na sami bala'i don wahalar da wutan lantarki a wannan ranar kuma sakamakon haka, tushen ya tattara kansa kamar "karanta kawai". Tare da cire -o remount, an warware rw amma banyi tsammanin yana da kyau ayi tafiya tare da gurbataccen bangare ba.
Daga wani tsarin nayi fsck da kuma cheque daga gparted kuma yaci gaba da irin wannan matsalar.
Na gyara shi ta hanyar sake sanyawa a cikin btrfs.
Na tambaya. Shin yana da lafiya don sanya / var / log mai canzawa? Babu wani abu mai mahimmanci a can da tsarin zai buƙaci dawowa daga mummunan kashewa?
Ina tambaya saboda baƙon abin da ya faru da ni. Ina amfani da Linux tun a shekarar 2011, ina fama da matsalar dauke wutar lantarki amma babu wani abu makamancin wannan da ya taba faruwa dani. A ranar da na hau tmpfs zuwa / var / log da sauran kundin adireshi, hakan yana faruwa da ni.
Ahem tuntuni na rubuta littafi don Debian ARM don tsawaita rayuwar SD, a cikin rasberi iri ɗaya ne kuma ana iya amfani da shi, wannan ya fi kyau, ba ku da kyau amma wasu ƙarin bayanai sun ɓace.
http://kirbian.wordpress.com/2013/01/11/reduce-disk-write-sdcard/
Kowace rana akwai ƙarin diski na SDD da haɗaɗɗun abubuwan SDD + HDD kuma wannan umarnin zai iya tsawanta rayuwarsu mai amfani.
Kuma tunda RAM tayi arha yanzu, ba zai cutar da shiga cikin saituna daban-daban ba wanda zai iya taimakawa inganta aikin tebur shima.
PS: Ina son wani ya rubuta labarai game da firintoci, musamman multifunction b / w laser, dan uwan ya yi kyau har zuwa yau, amma samfurin karshe da na ba da umarni ya ba ni matsala tare da na'urar daukar hoton takarda - zan dawo - kuma ina sun tafi neman kwatanci da ra'ayoyi, kuma rashi rashi ne a bayyane, da Spanish da Ingilishi -
Babu "duka ko sosai ko phoronix" don masu buga takardu - idan wani yana son ɗaukar sa -, amma a halin yanzu, idan wani yayi aiki yana siyar da waɗannan nau'ikan laser ɗin na B / W mai amfani da yawa don haka ana amfani dashi a ƙananan ofisoshin ko kawai sayar da inki, suna iya tattara gamsuwar kwastomominsu da irin wannan samfurin kuma raba shi anan ko inda ya fi dacewa ta hanyar sadarwa da shi.
Godiya ga bayanin. Yana da amfani sosai. Nasarori!