Me yasa kuke buƙatar yin ajiyar kuɗi? Bayan haka, kayan aiki suna da matukar aminci, kuma banda haka, akwai "girgije" waɗanda suka fi dacewa da aminci fiye da sabobin jiki: tare da daidaitaccen tsari, uwar garken "girgije" zai iya tsira daga rashin nasarar uwar garken jiki, kuma daga ra'ayi na masu amfani da sabis, za a yi ɗan ƙaramin tsalle, da kyar a cikin sabis na lokaci. Bugu da kari, kwafin bayanai sau da yawa yana buƙatar biyan lokacin “karin” processor, nauyin faifai, da zirga-zirgar hanyar sadarwa.
Kyakkyawan shirin yana gudana da sauri, baya zubar da ƙwaƙwalwar ajiya, ba shi da ramuka, kuma babu shi.
-Ba a sani ba
Tunda shirye-shiryen har yanzu masu haɓaka sunadaran suna rubutawa, kuma sau da yawa babu tsarin gwaji, ƙari da shirye-shiryen da wuya ana isar da su ta amfani da “mafi kyawun ayyuka” (waɗanda su kansu ma shirye-shirye ne don haka ajizai), masu gudanar da tsarin galibi suna magance matsalolin da ke sauti a taƙaice amma a taƙaice: “koma ga yadda yake”, “kawo tushe ga aiki na yau da kullun”, “yana aiki a hankali - mirgine baya”, da kuma abin da na fi so “Ban san menene ba, amma gyara shi”.
Bugu da ƙari, kurakurai masu ma'ana waɗanda ke tasowa a sakamakon rashin kulawa na masu haɓakawa, ko haɗuwa da yanayi, da kuma rashin cikakkun ilimi ko rashin fahimtar ƙananan siffofi na shirye-shiryen gine-gine - ciki har da haɗawa da tsarin, ciki har da tsarin aiki, direbobi da firmware - akwai kuma wasu kurakurai. Misali, yawancin masu haɓakawa sun dogara da lokacin aiki, suna mantawa gaba ɗaya game da dokokin zahiri, waɗanda har yanzu ba su yiwuwa a kewaye ta amfani da shirye-shirye. Wannan ya haɗa da amincin mara iyaka na tsarin faifan diski kuma, gabaɗaya, kowane tsarin ajiyar bayanai (gami da RAM da cache processor!), Da lokacin sarrafa sifili akan na'urar, da rashin kurakurai yayin watsawa akan hanyar sadarwa da lokacin aiki akan na'urar. processor, da latency na cibiyar sadarwa, wanda yake daidai da 0. Kada ku yi watsi da sanannen ranar ƙarshe, saboda idan ba ku hadu da shi a cikin lokaci ba, za a sami matsaloli mafi muni fiye da nuances na cibiyar sadarwa da aiki na diski.
Menene za a yi da matsalolin da suka tashi da ƙarfi kuma suna rataye akan bayanai masu mahimmanci? Babu wani abu da zai maye gurbin masu haɓaka masu rai, kuma ba gaskiya ba ne cewa zai yiwu a nan gaba. A gefe guda kuma, wasu ƴan ayyuka ne kawai suka yi nasarar tabbatar da cikakken cewa shirin zai yi aiki kamar yadda aka yi niyya, kuma ba lallai ba ne a yi amfani da shaida a kan wasu ayyuka makamantan haka. Har ila yau, irin wannan shaida yana ɗaukar lokaci mai yawa kuma yana buƙatar ƙwarewa da ilimi na musamman, kuma wannan a zahiri yana rage yiwuwar amfani da su cikin la'akari da lokacin ƙarshe. Bugu da kari, har yanzu ba mu san yadda ake amfani da fasaha mai sauri, arha kuma marar iyaka don adanawa, sarrafawa da watsa bayanai ba. Irin waɗannan fasahohin, idan sun kasance, suna cikin nau'i na ra'ayi, ko - mafi yawan lokuta - kawai a cikin littattafan almara na kimiyya da fina-finai.
Masu fasaha masu kyau suna kwafi, manyan masu fasaha suna sata.
-Pablo Picasso.
Mafi nasara mafita da abubuwa masu sauƙi masu ban mamaki yawanci suna faruwa ne inda dabaru, fasaha, ilimi, da fagagen kimiyya waɗanda ba su dace da juna ba a kallon farko.
Alal misali, tsuntsaye da jiragen sama suna da fuka-fuki, amma duk da kamance na aiki - ka'idar aiki a wasu hanyoyi iri ɗaya ne, kuma ana magance matsalolin fasaha a irin wannan hanya: ƙananan ƙasusuwa, amfani da kayan aiki mai karfi da nauyi, da dai sauransu. Sakamakon ya bambanta, ko da yake suna kama da juna. Mafi kyawun misalan da muke gani a cikin fasahar mu su ma an karbo su ne daga yanayi: matsi da matsi na jiragen ruwa da jiragen ruwa suna kwatankwacin kai tsaye tare da annelids; gine-ginen hare-hare da kuma duba amincin bayanai - kwafin sarkar DNA; da kuma gabobin da aka haɗa guda biyu, 'yancin kai na aikin gabobin daban-daban daga tsarin juyayi na tsakiya (aiki na zuciya) da kuma reflexes - tsarin sarrafa kansa akan Intanet. Tabbas, ɗauka da yin amfani da shirye-shiryen da aka yi "gaba da gaba" yana cike da matsaloli, amma wanene ya sani, watakila babu wasu mafita.
Da na san inda za ka fado, da na shimfida bambaro!
- Karin magana na mutanen Belarus
Wannan yana nufin cewa kwafin ajiya yana da mahimmanci ga waɗanda suke so:
- Kasance iya maido da aikin tsarin ku tare da ɗan lokaci kaɗan, ko ma ba tare da shi ba kwata-kwata
- Yi aiki da ƙarfin hali, domin idan akwai kuskure a koyaushe akwai yiwuwar sake dawowa
- Rage sakamakon ɓarnatar bayanai da gangan
Ga kadan ka'idar
Duk wani rarrabuwa na sabani ne. Hali ba ya rarraba. Muna rarrabawa saboda ya fi dacewa da mu. Kuma muna rarraba bisa ga bayanan da mu ma muke ɗauka ba bisa ka'ida ba.
- Jean Bruler
Ba tare da la'akari da hanyar ajiya ta zahiri ba, ana iya raba ma'ajin bayanan ma'ana zuwa hanyoyi biyu na samun damar wannan bayanan: toshe da fayil. Wannan rarrabuwar kwanan nan ta kasance mai duhu sosai, saboda toshe zalla, da kuma fayil ɗin zalla, ajiyar ma'ana ba ya wanzu. Koyaya, don sauƙi, zamu ɗauka cewa sun wanzu.
Toshe ma'ajiyar bayanai yana nuna cewa akwai na'ura ta zahiri inda aka rubuta bayanai a wasu ƙayyadaddun sassa, tubalan. Ana isa ga tubalan a wani adireshin; kowane toshe yana da nasa adireshin a cikin na'urar.
Yawancin lokaci ana yin wariyar ajiya ta hanyar kwafi tubalan bayanai. Don tabbatar da amincin bayanai, ana dakatar da rikodin sabbin tubalan, da kuma canje-canje ga waɗanda ke akwai, a lokacin yin kwafi. Idan muka ɗauki kwatanci daga duniyar yau da kullun, abu mafi kusa shine kabad mai lambobi iri ɗaya.
Adana bayanan fayil dangane da ƙa'idar na'urar ma'ana yana kusa da toshe ajiya kuma galibi ana shirya shi akan sama. Muhimman bambance-bambancen shine kasancewar matsayi na ajiya da sunaye masu iya karantawa. An ba da abstraction a cikin nau'i na fayil - yankin bayanai mai suna, da kuma kundin adireshi - fayil na musamman wanda aka adana bayanai da samun dama ga wasu fayiloli. Ana iya ba da fayiloli tare da ƙarin metadata: lokacin ƙirƙirar, tutocin shiga, da sauransu. Yawancin lokaci ana yin ta ta wannan hanya: suna neman fayilolin da aka canza, sannan a kwafa su zuwa wani ma'ajiyar fayil mai tsari iri ɗaya. Ana aiwatar da amincin bayanai galibi ta hanyar rashin fayilolin da ake rubuta wa. Ana adana metadata na fayil ta hanya guda. Misali mafi kusa shine ɗakin karatu, wanda ke da sassan da littattafai daban-daban, kuma yana da kasida mai ɗauke da sunayen littattafan da ɗan adam za su iya karantawa.
Kwanan nan, an kwatanta wani zaɓi a wasu lokuta, wanda, bisa ga ka'ida, ajiyar bayanan fayil ya fara, kuma wanda ke da siffofi iri ɗaya: ajiyar bayanan abu.
Ya bambanta da ajiyar fayiloli a cikin cewa ba shi da fiye da guda ɗaya (tsari mai laushi), kuma sunayen fayilolin, ko da yake ana iya karantawa na mutum, har yanzu sun fi dacewa da sarrafawa ta hanyar inji. Lokacin yin madadin, ma'ajiyar abu galibi ana bi da su daidai da ajiyar fayil, amma lokaci-lokaci akwai wasu zaɓuɓɓuka.
- Akwai nau'ikan masu gudanar da tsarin guda biyu, waɗanda ba sa yin ajiyar kuɗi, da waɗanda RIGA suke yi.
- A zahiri, akwai nau'ikan uku: Akwai kuma waɗanda suke bincika ayyukan ajiyar kuɗi za a iya dawo dasu.-Ba a sani ba
Har ila yau, yana da daraja fahimtar cewa tsarin ajiyar bayanan da kansa ana aiwatar da shi ta hanyar shirye-shirye, don haka yana da duk rashin amfani kamar kowane shirin. Don cirewa (ba kawar da!) Dogaro da halayen ɗan adam, kazalika da fasali - wanda kowannensu ba shi da tasiri mai ƙarfi, amma tare na iya ba da sakamako mai ban sha'awa - abin da ake kira doka 3-2-1. Akwai zaɓuɓɓuka da yawa na yadda za a cire shi, amma ina son fassarar mai zuwa: Dole ne a adana saiti guda 3 na bayanai iri ɗaya, dole ne a adana saiti 2 a cikin nau'i daban-daban, sannan saiti 1 dole ne a adana shi a cikin ma'ajiyar wuri mai nisa.
Ya kamata a fahimci tsarin ajiya kamar haka:
- Idan akwai dogara ga hanyar ajiyar jiki, muna canza hanyar jiki.
- Idan akwai dogara ga hanyar ajiya mai ma'ana, muna canza hanyar ma'ana.
Don cimma iyakar sakamako na ka'idar 3-2-1, ana bada shawara don canza tsarin ajiya ta hanyoyi biyu.
Daga ra'ayi na shirye-shiryen madadin don manufar da aka yi niyya - maido da aiki - an bambanta tsakanin "zafi" da "sanyi" madadin. Masu zafi sun bambanta da masu sanyi a cikin abu ɗaya kawai: nan da nan suna shirye don amfani, yayin da masu sanyi suna buƙatar wasu ƙarin matakai don farfadowa: ƙaddamarwa, cirewa daga ma'ajin, da dai sauransu.
Kada ku rikita kwafi masu zafi da sanyi tare da kwafi na kan layi da na layi, waɗanda ke nuna keɓewar bayanai ta zahiri kuma, a zahiri, wata alama ce ta rarrabuwar hanyoyin madadin. Don haka kwafin layi - ba a haɗa kai tsaye zuwa tsarin inda ake buƙatar dawo da shi ba - na iya zama ko dai zafi ko sanyi (dangane da shirye-shiryen farfadowa). Ana iya samun kwafin kan layi kai tsaye inda ake buƙatar dawo da shi, kuma galibi yana da zafi, amma kuma akwai masu sanyi.
Bugu da kari, kar ka manta cewa tsarin ƙirƙirar kwafin madadin kanta yawanci baya ƙare tare da ƙirƙirar kwafin madadin guda ɗaya, kuma ana iya samun adadi mai yawa na kwafin. Saboda haka, wajibi ne a bambanta tsakanin cikakkun bayanai, watau. waɗanda za a iya mayar da su ba tare da wasu madogara ba, da kuma daban-daban (ƙara, bambanci, raguwa, da dai sauransu) kwafi - waɗanda ba za a iya dawo da su da kansu ba kuma suna buƙatar sake dawo da farko na ɗaya ko fiye da wasu madadin.
Bambance-bambancen ƙara wariyar ajiya yunƙuri ne na adana sararin ajiyar ajiya. Don haka, kawai bayanan da aka canza daga madadin baya ana rubuta su zuwa kwafin madadin.
An ƙirƙiri ɓangarorin ɓangarorin daban-daban don manufa ɗaya, amma ta wata hanya ta ɗan bambanta: ana yin cikakken kwafin ajiya, amma kawai an adana bambanci tsakanin sabon kwafin da na baya.
Na dabam, yana da daraja la'akari da tsarin ajiyar ajiya akan ajiya, wanda ke goyan bayan rashin ajiyar ajiya na kwafi. Don haka, idan kun rubuta cikakkun bayanan ajiya a samansa, kawai bambance-bambancen da ke tsakanin madadin za a rubuta su a zahiri, amma tsarin maido da ajiyar zai kasance kama da maidowa daga cikakken kwafin kuma gaba ɗaya a bayyane.
Shin menene tsare-tsaren ipsos?
(Wane ne zai kiyaye masu tsaro da kansu? - lat.)
Yana da matukar ban sha'awa idan babu kwafin ajiya, amma ya fi muni idan kwafin madadin da alama an yi shi, amma lokacin da aka dawo da shi ya zama ba za a iya dawo da shi ba saboda:
- An lalata amincin bayanan tushen.
- Ma'ajiyar ajiyar ta lalace.
- Maidowa yana aiki a hankali; ba za ka iya amfani da bayanan da aka dawo da wani bangare ba.
Dole ne tsarin madadin da aka gina da kyau ya yi la'akari da irin waɗannan maganganun, musamman na farko biyu.
Ana iya tabbatar da amincin bayanan tushen ta hanyoyi da yawa. Abubuwan da aka fi amfani dasu sune kamar haka: a) ƙirƙirar hotunan tsarin fayil a matakin toshe, b) “daskare” yanayin tsarin fayil, c) na'urar toshe ta musamman tare da ma'ajin sigar, d) rikodin fayiloli na jere ko tubalan. Hakanan ana amfani da ƙididdiga don tabbatar da tabbatar da bayanai yayin dawowa.
Hakanan za'a iya gano ɓarnawar ajiya ta hanyar amfani da kima. Ƙarin hanyar ita ce amfani da na'urori na musamman ko tsarin fayil wanda ba za a iya canza bayanan da aka riga aka yi rikodin ba, amma ana iya ƙara sababbi.
Don hanzarta dawowa, ana amfani da dawo da bayanai tare da matakai da yawa don dawo da su - muddin babu ƙwanƙwasa a cikin hanyar hanyar sadarwar jinkirin ko tsarin faifai. Don kewaya halin da ake ciki tare da bayanan da aka dawo da su, za ku iya karya tsarin wariyar ajiya zuwa ƙananan ƙananan ayyuka, kowannensu ana yin su daban. Don haka, yana yiwuwa a ci gaba da dawo da aiki yayin da ake tsinkayar lokacin dawowa. Mafi sau da yawa wannan matsala ta ta'allaka ne a cikin jirgin sama na ƙungiya (SLA), don haka ba za mu tsaya a kan wannan dalla-dalla ba.
Kwararre a cikin kayan kamshi ba shine wanda yake hadawa a kowane tasa ba, sai dai wanda bai taba karawa ba.
-IN. Sinyavsky
Ayyuka game da software da masu gudanar da tsarin ke amfani da su na iya bambanta, amma ƙa'idodin gabaɗaya har yanzu, hanya ɗaya ko wata, iri ɗaya ne, musamman:
- Ana ba da shawarar sosai don amfani da shirye-shiryen mafita.
- Ya kamata shirye-shirye suyi aiki da tsinkaya, watau. Bai kamata a sami wasu siffofi ko ƙulla ba.
- Kafa kowane shiri ya zama mai sauƙi wanda ba dole ba ne ka karanta littafin jagora ko zamba a kowane lokaci.
- Idan zai yiwu, mafita ya kamata ya zama duniya, domin sabobin na iya bambanta sosai a cikin halayen kayan aikin su.
Akwai shirye-shirye gama-gari masu zuwa don ɗaukar wariyar ajiya daga na'urorin toshe:
- dd, wanda ya saba da tsoffin sojoji na tsarin gudanarwa, wannan kuma ya haɗa da shirye-shirye iri ɗaya (dd_rescue iri ɗaya, alal misali).
- Abubuwan da aka gina a cikin wasu tsarin fayil waɗanda ke haifar da juji na tsarin fayil.
- Abubuwan amfani masu amfani; misali partclone.
- Nasa, sau da yawa na mallaka, yanke shawara; misali, NortonGhost da kuma daga baya.
Don tsarin fayil, an warware matsalar madadin ta hanyar amfani da hanyoyin da suka dace don toshe na'urorin, amma ana iya magance matsalar da inganci ta amfani da, misali:
- Rsync, babban manufa shirin da yarjejeniya don aiki tare da yanayin tsarin fayil.
- Gina kayan aikin adana kayan tarihi (ZFS).
- Kayan aikin ajiya na ɓangare na uku; Wakilin da ya fi shahara shine kwalta. Akwai wasu, alal misali, dar - maye gurbin kwalta don tsarin zamani.
Yana da daraja ambaton dabam game da kayan aikin software don tabbatar da daidaiton bayanai lokacin ƙirƙirar kwafin madadin. Zaɓuɓɓukan da aka fi amfani da su sune:
- Hawan tsarin fayil a yanayin karantawa kawai (ReadOnly), ko daskare tsarin fayil (daskare) - hanyar tana da iyakacin aiki.
- Ƙirƙirar hotunan yanayin tsarin fayil ko na'urorin toshe (LVM, ZFS).
- Yin amfani da kayan aikin ɓangare na uku don tsara abubuwan gani, ko da a lokuta da ba za a iya samar da abubuwan da suka gabata ba saboda wasu dalilai (shirye-shirye kamar hotcopy).
- Dabarar kwafin-kan-canji (CopyOnWrite), duk da haka, an fi ɗaure shi da tsarin fayil ɗin da aka yi amfani da shi (BTRFS, ZFS).
Don haka, don ƙaramin uwar garken kuna buƙatar samar da madaidaicin makirci wanda ya cika waɗannan buƙatu:
- Sauƙi don amfani - ba a buƙatar ƙarin matakai na musamman yayin aiki, ƙananan matakai don ƙirƙira da mayar da kwafi.
- Universal - yana aiki akan duka manya da ƙananan sabobin; wannan yana da mahimmanci yayin girma yawan adadin sabobin ko sikelin.
- Mai sarrafa fakiti ya shigar, ko cikin umarni ɗaya ko biyu kamar “zazzagewa da cire kaya”.
- Stable - ana amfani da ma'auni ko tsari mai tsawo da aka kafa.
- Saurin aiki.
Masu nema daga waɗanda suka cika ko sama da haka:
- rdiff-ajiyayyen
- hoton hoto
- fashe
- kwafi
- kwafi
- bari dup
- bayarwa
- zbackup
- hutawa
- borgi
Za a yi amfani da injin kama-da-wane (dangane da XenServer) tare da halaye masu zuwa azaman benci na gwaji:
- 4-core 2.5 GHz,
- 16 GB RAM,
- 50GB ajiya matasan (tsarin ajiya tare da caching akan SSD 20% na girman faifan faifai) a cikin nau'in faifan diski daban ba tare da rabuwa ba,
- 200 Mbit tashar Intanet.
Kusan wannan na'ura za a yi amfani da ita azaman uwar garken mai karɓar ajiya, kawai tare da faifan diski 500 GB.
Tsarin aiki - Centos 7 x64: daidaitaccen bangare, ƙarin bangare za a yi amfani da shi azaman tushen bayanai.
A matsayin bayanan farko, bari mu ɗauki rukunin yanar gizon WordPress tare da 40 GB na fayilolin mai jarida da bayanan mysql. Tun da kama-da-wane sabobin sun bambanta da yawa a cikin halaye, da kuma don ingantacciyar haɓakawa, a nan ne
sakamakon gwajin uwar garken ta amfani da sysbench.sysbench --threads = 4 --lokaci = 30 --cpu-max-prime = 20000 cpu gudu
sysbench 1.1.0-18a9f86 (ta yin amfani da bundled LuaJIT 2.1.0-beta3)
Gudun gwajin tare da zaɓuɓɓuka masu zuwa:
Yawan zaren: 4
Ƙaddamar da janareta na lambar bazuwar daga lokacin yanzu
Ƙayyadaddun lambobi: 20000
Ana fara zaren ma'aikata…
Zane ya fara!
Saurin CPU:
abubuwan da suka faru a sakan daya: 836.69
Input:
abubuwan da suka faru/s (eps): 836.6908
lokaci ya wuce: 30.0039s
jimlar adadin abubuwan da suka faru: 25104
Latency (ms):
min: 2.38
Shafin: 4.78
max: 22.39
Kashi 95: 10.46
jimlar: 119923.64
Readulla gaskiya:
abubuwan da suka faru (m/stddev): 6276.0000/13.91
lokacin aiwatarwa (madaidaici/stddev): 29.9809/0.01
sysbench --threads = 4 --lokaci = 30 --memory-block-size = 1K --memory-scope = duniya --memory-total-size = 100G --memory-oper = karanta ƙwaƙwalwar ajiya
sysbench 1.1.0-18a9f86 (ta yin amfani da bundled LuaJIT 2.1.0-beta3)
Gudun gwajin tare da zaɓuɓɓuka masu zuwa:
Yawan zaren: 4
Ƙaddamar da janareta na lambar bazuwar daga lokacin yanzu
Gudun gwajin saurin ƙwaƙwalwar ajiya tare da zaɓuɓɓuka masu zuwa:
Girman toshe: 1KiB
jimlar girman: 102400MiB
aiki: karanta
iyaka: duniya
Ana fara zaren ma'aikata…
Zane ya fara!
Jimlar ayyuka: 50900446 (1696677.10 a sakan daya)
49707.47 MiB canjawa wuri (1656.91 MiB/sec)
Input:
abubuwan da suka faru/s (eps): 1696677.1017
lokaci ya wuce: 30.0001s
jimlar adadin abubuwan da suka faru: 50900446
Latency (ms):
min: 0.00
Shafin: 0.00
max: 24.01
Kashi 95: 0.00
jimlar: 39106.74
Readulla gaskiya:
abubuwan da suka faru (m/stddev): 12725111.5000/137775.15
lokacin aiwatarwa (madaidaici/stddev): 9.7767/0.10
sysbench --threads = 4 --lokaci = 30 --memory-block-size = 1K --memory-scope = duniya --memory-total-size = 100G --memory-oper=Rubutun ƙwaƙwalwar ajiya
sysbench 1.1.0-18a9f86 (ta yin amfani da bundled LuaJIT 2.1.0-beta3)
Gudun gwajin tare da zaɓuɓɓuka masu zuwa:
Yawan zaren: 4
Ƙaddamar da janareta na lambar bazuwar daga lokacin yanzu
Gudun gwajin saurin ƙwaƙwalwar ajiya tare da zaɓuɓɓuka masu zuwa:
Girman toshe: 1KiB
jimlar girman: 102400MiB
aiki: rubuta
iyaka: duniya
Ana fara zaren ma'aikata…
Zane ya fara!
Jimlar ayyuka: 35910413 (1197008.62 a sakan daya)
35068.76 MiB canjawa wuri (1168.95 MiB/sec)
Input:
abubuwan da suka faru/s (eps): 1197008.6179
lokaci ya wuce: 30.0001s
jimlar adadin abubuwan da suka faru: 35910413
Latency (ms):
min: 0.00
Shafin: 0.00
max: 16.90
Kashi 95: 0.00
jimlar: 43604.83
Readulla gaskiya:
abubuwan da suka faru (m/stddev): 8977603.2500/233905.84
lokacin aiwatarwa (madaidaici/stddev): 10.9012/0.41
sysbench --threads=4 --file-test-mode=rndrw --time=60 --file-block-size=4K --file-total-size=1G fileio run
sysbench 1.1.0-18a9f86 (ta yin amfani da bundled LuaJIT 2.1.0-beta3)
Gudun gwajin tare da zaɓuɓɓuka masu zuwa:
Yawan zaren: 4
Ƙaddamar da janareta na lambar bazuwar daga lokacin yanzu
Ƙarin fayil ɗin buɗaɗɗen tutoci: (babu)
128 fayiloli, 8MiB kowane
1 GiB jimlar girman fayil
Girman toshe 4KiB
Yawan buƙatun IO: 0
Rabon karantawa/Rubuta don haɗa gwajin IO bazuwar: 1.50
An kunna FSYNC na lokaci-lokaci, yana kiran fsync() kowane buƙatun 100.
Kira fsync() a ƙarshen gwaji, An kunna.
Amfani da yanayin I/O na aiki tare
Yin gwajin r/w bazuwar
Ana fara zaren ma'aikata…
Zane ya fara!
Input:
karanta: IOPS=3868.21 15.11 MiB/s (15.84 MB/s)
rubuta: IOPS=2578.83 10.07 MiB/s (10.56 MB/s)
fsync: IOPS=8226.98
Latency (ms):
min: 0.00
Shafin: 0.27
max: 18.01
Kashi 95: 1.08
jimlar: 238469.45
Wannan bayanin kula ya fara babba
jerin labarai game da madadin
- Ajiyayyen, Sashe na 1: Me yasa ake buƙatar madadin, bayyani na hanyoyin, fasaha
- Ajiyayyen Sashe na 2: Bita da gwada kayan aikin madadin tushen rsync
- Ajiyayyen Sashe na 3: Bita da gwada kwafi, kwafi, deja dup
- Ajiyayyen Sashe na 4: Bita da gwaji zbackup, restic, borgbackup
- Ajiyayyen Sashe na 5: Gwajin bacula da madadin veeam don Linux
- Ajiyayyen Sashe na 6: Kwatanta Kayan Ajiyayyen
- Ajiyayyen Sashe na 7: Kammalawa
source: www.habr.com