Sei uchifanira kuita backups? Mushure mezvose, michina yacho yakanyanya, yakavimbika, uye kunze, kune "makore" ari nani mukuvimbika kupfuura maseva emuviri: nekugadzirisa kwakakodzera, sevha ye "gore" inogona kupona nyore nyore kutadza kwesevha yemuviri, uye kubva. iyo maonero evashandisi vebasa, pachava nekusvetuka kudiki, kusingaonekwe kusvetuka mubasa renguva. Mukuwedzera, kudzokorora ruzivo kunowanzoda kubhadhara "yakawedzerwa" processor nguva, disk load, uye network traffic.
Chirongwa chakakodzera chinomhanya nekukurumidza, hachiderere ndangariro, haina maburi, uye haipo.
-Hazvizivikanwe
Sezvo zvirongwa zvichiri kunyorwa nevagadziri veprotein, uye kazhinji pasina maitiro ekuyedza, uyezve mapurogiramu haawanzo kuendeswa pachishandiswa "akanakisa maitiro" (ayo pachawo ari mapurogiramu uye saka asina kukwana), vatariri vehurongwa kazhinji kazhinji vanofanirwa kugadzirisa matambudziko anonzwika muchidimbu asi. muchidimbu: "dzokera kwazvanga zviri", "unza hwaro kune yakajairika kushanda", "inoshanda zvishoma nezvishoma - dzokera kumashure", uyezve zvandinoda "Handizive chii, asi gadzirisa".
Kuwedzera kune zvikanganiso zvine musoro zvinomuka nekuda kwekusava nehanya nebasa revagadziri, kana musanganiswa wemamiriro ezvinhu, pamwe neruzivo rusina kukwana kana kusanzwisiswa kwezvinhu zvidiki zvezvirongwa zvekuvaka - zvinosanganisira kubatanidza uye system, kusanganisira masisitimu anoshanda, vatyairi uye firmware - panewo zvimwe zvikanganiso. Semuenzaniso, vazhinji vanogadzira vanovimba nenguva yekumhanya, vachikanganwa zvachose nezvemitemo yemuviri, izvo zvichiri zvisingabviri kunzvenga kushandisa zvirongwa. Izvi zvinosanganisira kusavimbika kusingagumi kweiyo disk subsystem uye, kazhinji, chero dhata rekuchengetedza data (kusanganisira RAM uye processor cache!), uye zero yekugadzira nguva pane processor, uye kusavapo kwezvikanganiso panguva yekufambisa pamusoro petiweki uye panguva yekugadzirisa processor, uye network latency, iyo yakaenzana ne 0. Iwe haufaniri kuregeredza iyo yakakurumbira nguva yekupedzisira, nokuti kana iwe usingasangane nayo munguva, pachava nezvinetso zvakanyanya kudarika nuances ye network uye disk operation.
Chii chekuita nematambudziko anosimuka musimba rakazara uye akarembera pamusoro akakosha data? Hapana chekutsiva vagadziri vehupenyu, uye hachisi chokwadi chekuti zvichagoneka munguva pfupi iri kutevera. Nekune rumwe rutivi, mapurojekiti mashoma chete akabudirira kuratidza zvizere kuti chirongwa chichashanda sezvakarongwa, uye hazvizoitike kutora uye kushandisa humbowo kune mamwe, mapurojekiti akafanana. Zvakare, humbowo hwakadaro hunotora nguva yakawanda uye hunoda hunyanzvi uye ruzivo, uye izvi zvinoderedza mukana wekushandisa kwavo uchifunga nezvemazuva ekupedzisira. Uye zvakare, isu hatisati taziva mashandisiro ekupedzisira-nekukurumidza, akachipa uye akavimbika asingagumi tekinoroji yekuchengetedza, kugadzirisa uye kutumira ruzivo. Tekinoroji dzakadaro, kana dziripo, dziri muchimiro chepfungwa, kana - kazhinji - mumabhuku engano dzesainzi nemafirimu chete.
Vatambi vakanaka vanokopa, maartist makuru anoba.
—Pablo Picasso.
Mhinduro dzakanyanya kubudirira uye zvinoshamisa zvinhu zviri nyore zvinowanzoitika apo pfungwa, matekinoroji, ruzivo, uye ndima dzesainzi dzisingaenderane pekutanga dzinosangana.
Semuenzaniso, shiri uye ndege dzine mapapiro, asi pasinei nekufanana kwekushanda - nheyo yekushanda mune dzimwe nzira dzakafanana, uye matambudziko ehutano anogadziriswa nenzira yakafanana: mapfupa asina kusimba, kushandiswa kwezvinhu zvakasimba uye zvisingaremi, nezvimwewo. migumisiro yacho yakasiyana zvachose, kunyange zvazvo yakafanana zvikuru. Mienzaniso yakanakisa yatinoona mune tekinoroji yedu zvakare yakakweretwa zvakanyanya kubva kune zvakasikwa: iyo yakamanikidzwa compartments yezvikepe uye submarines inofananidzira yakananga ane annelids; kuvaka kurwiswa arrays uye kutarisa kuvimbika kwedata - kudzokorora cheni yeDNA; pamwe chete nemitezo yakabatana, kusununguka kwebasa remitezo yakasiyana kubva pakati penheyo system (automation of the heart) uye reflexes - autonomous systems paInternet. Zvechokwadi, kutora nekushandisa zvakagadzirirwa zvakagadziriswa "musoro-pamusoro" yakazara nezvinetso, asi ndiani anoziva, zvichida hapana dzimwe mhinduro.
Dai ndakaziva pauchawira, ndingadai ndakawarira mashanga!
-Chirevo chevanhu veBelarusian
Izvi zvinoreva kuti makopi ekuchengetedza akakosha kune avo vanoda ku:
- Kugona kudzoreredza mashandiro emasisitimu ako neashoma downtime, kana kunyangwe pasina iwo zvachose
- Ita wakashinga, nekuti kana paine chikanganiso pane nguva dzose mukana wekudzoreredza
- Deredza mhedzisiro yehuori hwemaune
Heino dzidziso shoma
Chero kupatsanurwa hakuna pamutemo. Zvisikwa hazvisarudzi. Isu tinoisa mumapoka nekuti zvakatinakira zvakanyanya. Uye isu tinoronga zvinoenderana nedata yatinotorawo zvisina tsarukano.
—Jean Bruler
Pasinei neiyo nzira yekuchengetedza yemuviri, inonzwisisika yekuchengetedza data inogona kukamurwa kuva nzira mbiri dzekuwana iyi data: block uye faira. Iyi kupatsanurwa ichangobva kusviba zvakanyanya, nekuti kuvharika chete, pamwe chete nefaira, chengetedzo ine musoro haipo. Zvisinei, kuti zvive nyore, tichafunga kuti zviripo.
Kuvharira kuchengetedza data kunoreva kuti kune mudziyo wenyama uko data rakanyorwa mune zvimwe zvikamu zvakagadziriswa, mabhuroko. Mabhuroki anowanikwa pane imwe kero; imwe neimwe block ine kero yayo mukati memudziyo.
Backup inowanzoitwa nekukopa zvidhinha zve data. Kuti ive nechokwadi chekutendeseka kwedata, kurekodha kwezvivharo zvitsva, pamwe nekuchinja kune zviripo, zvinomiswa panguva yekukopa. Kana tikatora fananidzo kubva kunyika yakajairwa, chinhu chiri padhuze iwadhiropu ine masero ane manhamba akafanana.
Faira data chengetedzo yakavakirwa pane inonzwisisika mudziyo musimboti iri padyo nevhavha yekuchengetedza uye inowanzo kurongeka pamusoro. Misiyano yakakosha kuvepo kwenzvimbo yekuchengetedza uye mazita anoverengwa nevanhu. An abstraction inogoverwa muchimiro chefaira - iyo inonzi data data, pamwe nedhairekitori - yakakosha faira umo tsananguro uye kuwana kune mamwe mafaera zvakachengetwa. Mafaira anogona kupihwa neimwe metadata: nguva yekugadzira, mireza yekuwana, nezvimwe. Backups inowanzoitwa nenzira iyi: ivo vanotsvaga mafaera akachinjwa, vobva vakopa kune imwe faira rekuchengetedza ine chimiro chakafanana. Kutendeseka kwedata kunowanzoitwa nekusavapo kwemafaira ari kunyorerwa. Faira metadata inotsigirwa nenzira imwechete. Enzaniso yepedyo iraibhurari, ine zvikamu zvine mabhuku akasiyana, uye inewo bhuku rine mazita anoverengwa nevanhu emabhuku.
Munguva pfupi yapfuura, imwe sarudzo inotsanangurwa dzimwe nguva, kubva kune iyo, mukutanga, faira rekuchengetedza data rakatanga, uye iro rine zvakafanana zvekare maficha: chinhu chekuchengetedza data.
Iyo inosiyana nekuchengetedza mafaira mukuti haina inopfuura imwe nesting (flat scheme), uye mazita emafaira, kunyange zvazvo anoverengwa nevanhu, achiri akakodzera kugadziriswa nemichina. Paunenge uchiita ma backups, kuchengetedza chinhu kunowanzobatwa zvakafanana nekuchengetedza faira, asi dzimwe nguva kune dzimwe sarudzo.
-Kune marudzi maviri evatariri vehurongwa, avo vasingaite backups, uye avo VATOTOVA.
- Chaizvoizvo, kune marudzi matatu: kune zvakare avo vanotarisa kuti backups inogona kudzoserwa.-Hazvizivikanwe
Izvo zvakakoshawo kuti unzwisise kuti iyo data backup process pachayo inoitwa nemapurogiramu, saka ine zvese zvakakanganisika sechero imwe chirongwa. Kubvisa (kwete kubvisa!) Kutsamira pane chinhu chemunhu, pamwe chete nemaitiro - ayo ega ega asina simba rakasimba, asi pamwe chete anogona kupa chinooneka chiitiko - icho chinonzi. mutemo 3-2-1. Pane zvakawanda zvingasarudzwa zvekugadzirisa sei, asi ini ndinosarudza kududzira kunotevera: unoda kuchengeta 3 seti ye data yakafanana, 2 seti inoda kuchengetwa mumhando dzakasiyana, uye 1 seti inofanira kuchengetwa munzvimbo yekure kure.
Iyo yekuchengetedza fomati inofanirwa kunzwisiswa sezvizvi:
- Kana pane kutsamira pane nzira yekuchengetedza yemuviri, tinoshandura nzira yemuviri.
- Kana paine kutsamira pane zvine musoro kuchengetedza nzira, isu tinoshandura nzira inonzwisisika.
Kuti uwane iyo yakanyanya mhedzisiro yemutemo we3-2-1, zvinokurudzirwa kushandura chimiro chekuchengetedza munzira mbiri.
Kubva pakuona kwekugadzirira kwe backup kune chinangwa chayo - kudzoreredza mashandiro - musiyano unoitwa pakati pe "zvinopisa" uye "zvinotonhora" backups. Dzinopisa dzinosiyana nedzinotonhora muchinhu chimwe chete: dzinobva dzagadzirira kushandiswa, nepo dzinotonhora dzichida mamwe matanho ekudzoreredza: decryption, kubviswa kubva mudura, nezvimwe.
Usavhiringe makopi anopisa uye anotonhora nemakopi epamhepo uye asiri pamhepo, izvo zvinoreva kuparadzaniswa kwe data uye, kutaura zvazviri, chimwe chiratidzo chekugadzika kwenzira dzekuchengetedza. Saka kopi isina mhepo - isina kubatana zvakananga kune sisitimu iyo inoda kudzoserwa - inogona kunge inopisa kana kutonhora (maererano nekugadzirira kupora). Ikopi yepamhepo inogona kuwanikwa zvakananga kwainoda kudzoserwa, uye kazhinji inopisa, asi kune zvakare inotonhora.
Mukuwedzera, usakanganwa kuti nzira yekugadzira makopi ekuchengetedza pachayo kazhinji haigumi nekugadzirwa kwekopi imwe yekuchengetedza, uye panogona kuva nenhamba yakakura yemakopi. Nokudaro, zvakakosha kusiyanisa pakati pekuchengetedza zvizere, i.e. izvo zvinogona kudzoserwa zvakazvimiririra kune mamwe ma backups, pamwe nekusiyanisa (kuwedzera, kusiyanisa, kuderera, nezvimwewo) makopi - ayo asingakwanisi kudzoreredzwa akazvimirira uye anoda kudzoreredzwa kwekutanga kweimwe kana mamwe mamwe mabhapu.
Differential incremental backups kuyedza kuchengetedza nzvimbo yekuchengetedza. Saka, data chete yakashandurwa kubva kune yakapfuura backup inonyorwa kune backup kopi.
Yakasiyana inodzikisira inogadzirwa nechinangwa chimwe chete, asi nenzira yakati siyanei: yakazara backup kopi inogadzirwa, asi chete mutsauko uripo pakati peitsva kopi uye yapfuura unochengetwa.
Neparutivi, zvakakodzera kufunga nezve maitiro ekuchengetedza pamusoro pekuchengetedza, ayo anotsigira kusavapo kwekuchengetwa kweakapetwa. Nokudaro, kana iwe ukanyora zvizere zvekuchengetedza pamusoro payo, chete misiyano pakati pezvinyorwa zvinonyatsonyorwa, asi nzira yekudzorera mabheji ichafanana nekudzorera kubva kukopi yakazara uye yakajeka zvachose.
Quis custodiet ipsos custodes?
(Ndiani acharinda varindi pachavo? - lat.)
Izvo zvisingafadzi kana pasina makopi ekuchengetedza, asi zvakanyanya kuipa kana kopi yekuchengetedza ichiita senge yaitwa, asi pakuidzoreredza zvinobuda kuti haigone kudzoserwa nekuti:
- Kutendeseka kwenzvimbo yedata kwakakanganiswa.
- Chengetedzo yekuchengetedza yakakuvadzwa.
- Kudzoreredza kunoshanda zvishoma nezvishoma; haugone kushandisa data rakadzoserwa zvishoma.
Maitiro ekuchengetedza akagadzirwa zvakanaka anofanirwa kufunga nezvemashoko akadai, kunyanya maviri ekutanga.
Kutendeseka kweiyo sosi data kunogona kuvimbiswa munzira dzinoverengeka. Anonyanya kushandiswa ndeaya anotevera: a) kugadzira snapshots yefaira system padanho re block, b) "kuomesa" mamiriro eiyo faira system, c) yakakosha block mudziyo ine vhezheni yekuchengetedza, d) sequential kurekodha kwemafaira kana blocks. Checksums inoshandiswawo kuona kuti data inosimbiswa panguva yekupora.
Huori hwekuchengetera hunogonawo kuonekwa uchishandisa macheki. Imwe nzira yekuwedzera ndeyekushandiswa kwezvishandiso zvehunyanzvi kana masisitimu efaira umo data rakarekodhwa harigone kuchinjwa, asi matsva anogona kuwedzerwa.
Kuti ikurumidze kupora, kudzoreredza data kunoshandiswa nemaitiro akawanda ekudzoreredza - chero pasina bhodhoro muchimiro cheinononoka network kana inononoka disk system. Kuti utenderere nemamiriro ezvinhu nedata rakadzokororwa zvishoma, unogona kutyora maitiro ekuchengetedza kuita madiki madiki, rimwe nerimwe richiitwa zvakasiyana. Saka, zvinogoneka kugara uchidzoreredza kuita uchifanotaura nguva yekudzoreredza. Dambudziko iri rinowanzo rara mundege yesangano (SLA), saka isu hatizogara pane izvi zvakadzama.
Nyanzvi yezvinonhuwira haisi iyo inozviwedzera mundiro imwe neimwe, asi uyo asingambowedzeri chimwe chinhu pairi.
-IN. Sinyavsky
Maitiro ane chekuita nesoftware inoshandiswa nevatariri vehurongwa anogona kusiyana, asi misimboti yese ichiri, imwe nzira kana imwe, yakafanana, kunyanya:
- Inokurudzirwa zvakasimba kushandisa yakagadzirira-yakagadzirwa mhinduro.
- Zvirongwa zvinofanira kushanda zvakafanotaurwa, i.e. Hapafanirwe kunge paine zvisina kunyorwa zvinyorwa kana mabhodhoro.
- Kumisikidza chirongwa chega chega kunofanirwa kuve kwakapusa zvekuti haufanirwe kuverenga bhuku rekushandisa kana kubiridzira pepa nguva dzese.
- Kana zvichibvira, mhinduro inofanira kuva yepasi rose, nokuti maseva anogona kusiyana zvakanyanya mune yavo hardware maitiro.
Pane zvinotevera zvakajairika zvirongwa zvekutora backups kubva ku block zvishandiso:
- dd, inojairwa kune system manejimendi veterans, izvi zvinosanganisira zvirongwa zvakafanana (iyo yakafanana dd_rescue, semuenzaniso).
- Zvishandiso zvakavakwa mune mamwe mafaera masisitimu anogadzira kuraswa kwefaira system.
- Omnivorous utilities; semuenzaniso partclone.
- Zvisarudzo zvake, kazhinji ndezvake; semuenzaniso, NortonGhost uye gare gare.
Kune masisitimu emafaira, dambudziko rekuchengetedza rinogadziriswa zvishoma uchishandisa nzira dzinoshanda kune block zvishandiso, asi dambudziko rinogona kugadziriswa zvakanyanya uchishandisa, semuenzaniso:
- Rsync, chirongwa-chechinangwa chirongwa uye protocol yekuwiriranisa mamiriro emafaira masisitimu.
- Zvishandiso zvakavakwa-mukati zvekuchengeta (ZFS).
- Wechitatu bato archiving maturusi; mumiririri anonyanya kufarirwa itara. Kune vamwe, semuenzaniso, dar - kutsiva tara inonangana nehurongwa hwemazuva ano.
Zvakakodzera kutaura zvakasiyana nezve maturusi esoftware ekuona kuenderana kwedata paunenge uchigadzira makopi ekuchengetedza. Sarudzo dzinonyanya kushandiswa ndeidzi:
- Kuisa iyo faira sisitimu mukuverenga-chete modhi (ReadOnly), kana kuomesa iyo faira system (freeze) - iyo nzira ndeyekushoma kushandiswa.
- Kugadzira snapshots yemamiriro emafaira masisitimu kana block zvishandiso (LVM, ZFS).
- Kushandiswa kwezvishandiso zvechitatu-bato kuronga zvinoonekwa, kunyangwe mumamiriro ezvinhu apo mapoinzi apfuura haagone kupihwa nekuda kwechimwe chikonzero (zvirongwa zvakaita sehotcopy).
- Iyo yekukopa-pane-kuchinja maitiro (CopyOnWrite), zvisinei, kazhinji inosungirirwa kune faira system inoshandiswa (BTRFS, ZFS).
Saka, kune diki server iwe unofanirwa kupa backup scheme inosangana nezvinotevera zvinodiwa:
- Zviri nyore kushandisa - hapana akakosha ekuwedzera matanho anodiwa panguva yekushanda, mashoma matanho ekugadzira uye kudzoreredza makopi.
- Universal - inoshanda pane ese makuru uye madiki maseva; izvi zvakakosha kana uchikura huwandu hwemaseva kana kuyera.
- Yakaiswa nemaneja wepakeji, kana mune imwechete kana maviri mirairo senge "dhawunirodha uye unpack".
- Yakagadzikana - yakajairwa kana yakareba-yakasimbiswa yekuchengetedza fomati inoshandiswa.
- Kutsanya pabasa.
Vanyoreri kubva kune avo vakawanda kana zvishoma vanozadzisa zvinodiwa:
- rdiff-backup
- rsnapshot
- burp
- duplicate
- duplicity
- rega kunyengera
- dar
- zbackup
- restic
- borgbackup
Muchina chaiwo (wakavakirwa paXenServer) une zvinotevera hunhu uchashandiswa sebhenji rekuyedza:
- 4 cores 2.5 GHz,
- 16GB RAM,
- 50 GB hybrid chengetedzo (yekuchengetedza sisitimu ine caching paSSD 20% yeiyo chaiyo disk saizi) muchimiro cheyakasarudzika dhisiki isina kupatsanura,
- 200 Mbps Internet chiteshi.
Inenge muchina mumwechete uchashandiswa sevhavha yekugamuchira server, chete ne500 GB hard drive.
Operating system - Centos 7 x64: yakajairika partition, yekuwedzera partition ichashandiswa se data sosi.
Sekutanga data, ngatitorei WordPress saiti ine 40 GB yemafaira emidhiya uye mysql dhatabhesi. Sezvo maseva chaiwo achisiyana zvakanyanya muhunhu, uyezve nekuita zviri nani kuberekana, hezvino
server test results using sysbench.sysbench --shinda = 4 --nguva = 30 --cpu-max-prime = 20000 cpu run
sysbench 1.1.0-18a9f86 (uchishandisa mabundled LuaJIT 2.1.0-beta3)
Kumhanyisa bvunzo nesarudzo dzinotevera:
Nhamba yetambo: 4
Kutanga nhamba jenareta kubva panguva ino
Prime nhamba muganho: 20000
Kutanga tambo dzevashandi…
Threads dzakatanga!
Speed CPU:
zviitiko pasekondi: 836.69
Kuburitsa:
zviitiko/s (eps): 836.6908
nguva yapfuura: 30.0039s
nhamba yose yezviitiko: 25104
Kunonoka (ms):
min: 2.38
avg: 4.78
hukuru:22.39
95th percentile: 10.46
uwandu: 119923.64
Threads kurongeka:
zviitiko (avg/stddev): 6276.0000/13.91
nguva yekuuraya (avg/stddev): 29.9809/0.01
sysbench --threads=4 --nguva=30 --memory-block-size=1K --memory-scope=global --memory-total-size=100G --memory-oper=read memory run
sysbench 1.1.0-18a9f86 (uchishandisa mabundled LuaJIT 2.1.0-beta3)
Kumhanyisa bvunzo nesarudzo dzinotevera:
Nhamba yetambo: 4
Kutanga nhamba jenareta kubva panguva ino
Kumhanyisa memory yekumhanyisa bvunzo neinotevera sarudzo:
saizi yebhuroka: 1KiB
saizi yese: 102400MiB
kushanda: verenga
chiyero: pasi rose
Kutanga tambo dzevashandi…
Threads dzakatanga!
Kushanda kwese: 50900446 (1696677.10 pasekondi)
49707.47 MiB kutamiswa (1656.91 MiB/sec)
Kuburitsa:
zviitiko/s (eps): 1696677.1017
nguva yapfuura: 30.0001s
nhamba yose yezviitiko: 50900446
Kunonoka (ms):
min: 0.00
avg: 0.00
hukuru:24.01
95th percentile: 0.00
uwandu: 39106.74
Threads kurongeka:
zviitiko (avg/stddev): 12725111.5000/137775.15
nguva yekuuraya (avg/stddev): 9.7767/0.10
sysbench --threads=4 --nguva=30 --memory-block-size=1K --memory-scope=global --memory-total-size=100G --memory-oper=nyora ndangariro run
sysbench 1.1.0-18a9f86 (uchishandisa mabundled LuaJIT 2.1.0-beta3)
Kumhanyisa bvunzo nesarudzo dzinotevera:
Nhamba yetambo: 4
Kutanga nhamba jenareta kubva panguva ino
Kumhanyisa memory yekumhanyisa bvunzo neinotevera sarudzo:
saizi yebhuroka: 1KiB
saizi yese: 102400MiB
kushanda: kunyora
chiyero: pasi rose
Kutanga tambo dzevashandi…
Threads dzakatanga!
Kushanda kwese: 35910413 (1197008.62 pasekondi)
35068.76 MiB kutamiswa (1168.95 MiB/sec)
Kuburitsa:
zviitiko/s (eps): 1197008.6179
nguva yapfuura: 30.0001s
nhamba yose yezviitiko: 35910413
Kunonoka (ms):
min: 0.00
avg: 0.00
hukuru:16.90
95th percentile: 0.00
uwandu: 43604.83
Threads kurongeka:
zviitiko (avg/stddev): 8977603.2500/233905.84
nguva yekuuraya (avg/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 (uchishandisa mabundled LuaJIT 2.1.0-beta3)
Kumhanyisa bvunzo nesarudzo dzinotevera:
Nhamba yetambo: 4
Kutanga nhamba jenareta kubva panguva ino
Yakawedzera faira yakavhurika mireza: (hapana)
128 mafaira, 8MiB imwe neimwe
1GiB yakazara saizi yefaira
Vimba saizi 4KiB
Nhamba yeIO zvikumbiro: 0
Verenga/Nyora reshiyo yeyakasanganiswa yakasarudzika IO bvunzo: 1.50
Periodic FSYNC inogoneswa, ichidaidza fsync() yega yega zana zvikumbiro.
Kufona fsync () pakupera kwebvunzo, Inogoneswa.
Kushandisa synchronous I/O modhi
Kuita zvisingaite r/w bvunzo
Kutanga tambo dzevashandi…
Threads dzakatanga!
Kuburitsa:
verenga: IOPS=3868.21 15.11 MiB/s (15.84 MB/s)
nyora: IOPS=2578.83 10.07 MiB/s (10.56 MB/s)
fsync: IOPS = 8226.98
Kunonoka (ms):
min: 0.00
avg: 0.27
hukuru:18.01
95th percentile: 1.08
uwandu: 238469.45
Ichi chinyorwa chinotanga zvikuru
nhevedzano yezvinyorwa nezve backup
- Backup, chikamu 1: Nei backup ichidiwa, muchidimbu nzira, matekinoroji
- Backup Chikamu 2: Kuongorora uye kuyedza rsync-based backup maturusi
- Backup Chikamu 3: Kuongorora uye kuyedza duplicity, duplicaty, deja dup
- Backup Chikamu 4: Kuongorora uye kuyedza zbackup, restic, borgbackup
- Backup Chikamu 5: Kuedza bacula uye veeam backup yelinux
- Negadziriro yeparutivi Chikamu 6: Kuenzanisa negadziriro yeparutivi Tools
- Backup Chikamu 7: Mhedziso
Source: www.habr.com