{"id":34664,"date":"2019-10-31T21:59:41","date_gmt":"2019-10-31T18:59:41","guid":{"rendered":"https:\/\/prohoster.info\/blog\/zfsonlinux-0-8-fichi-stabilizatsiya-intrigi-nu-i-trim\/"},"modified":"2019-10-31T21:59:41","modified_gmt":"2019-10-31T18:59:41","slug":"zfsonlinux-0-8-fichi-stabilizatsiya-intrigi-nu-i-trim","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/administrirovanie\/zfsonlinux-0-8-fichi-stabilizatsiya-intrigi-nu-i-trim","title":{"rendered":"ZFSonLinux 0.8: \u00faj funkci\u00f3k, stabiliz\u00e1l\u00e1s, intrik\u00e1k. \u00c9s a trim","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Nemr\u00e9giben kiadt\u00e1k az \u00faj stabil ZFSonLinux verzi\u00f3t, amely most k\u00f6z\u00e9ppontj\u00e1ban \u00e1ll az OpenZFS fejleszt\u00e9s\u00e9nek vil\u00e1g\u00e1ban. Isten hozta, OpenSolaris, \u00fcdv\u00f6z\u00f6lj\u00fck a harcias GPL-CDDL nem kompatibilis Linux vil\u00e1g\u00e1t.<\/p>\n

\"ZFSonLinux
\nA tov\u00e1bbiakban a leg\u00e9rdekesebb dolgok \u00e1ttekint\u00e9se (nem is csoda, 2200<\/u> commithoz!), \u00e9s desszertnek \u2014 egy kis intriga.
\n<\/a><\/noindex><\/p>\n

\u00daj funkci\u00f3k<\/h3>\n

\nTerm\u00e9szetesen a legjobban v\u00e1rt \u2014 nat\u00edv titkos\u00edt\u00e1s<\/b>. Mostant\u00f3l csak a sz\u00fcks\u00e9ges adathalmazokat lehet titkos\u00edtani a ZFS be\u00e9p\u00edtett titkos\u00edt\u00e1s\u00e1val, \u00e9s (szerintem a legfontosabb) \u2014 titkos\u00edtott adatokat k\u00fcldhet\u00fcnk az zfs send<\/i> seg\u00edts\u00e9g\u00e9vel, \u00e9s AN\u00c9LK\u00dcL ellen\u0151rizhetj\u00fck az adatok integrit\u00e1s\u00e1t a be\u00e9p\u00edtett eszk\u00f6z\u00f6kkel, \u00edgy a ZFS adatainak \u00e9ps\u00e9g\u00e9nek meg\u0151rz\u00e9s\u00e9re vonatkoz\u00f3 lehet\u0151s\u00e9gek \u00d6n\u00f6kn\u00e9l maradnak!<\/p>\n

A k\u00f6vetkez\u0151 fontoss\u00e1gi szempont a r\u00e9g\u00f3ta v\u00e1rt TRIM<\/b>Igen, nagyon sok\u00e1ig tartott, am\u00edg a produkci\u00f3ba ker\u00fcltek. R\u00e9szben az\u00e9rt, mert a CoW f\u00e1jlrendszerek eset\u00e9ben nem olyan kritikus a SSD-k elhaszn\u00e1l\u00f3d\u00e1s\u00e1nak probl\u00e9m\u00e1ja. De most m\u00e1r mindannyian nyugodtak vagyunk \u2014 zpool trim <\/i>megmenti \u00e9rz\u00e9keny flash meghajt\u00f3inkat.<\/p>\n

Mostant\u00f3l k\u00f6zvetlen\u00fcl t\u00f6rli<\/b> az v\u00e9letlen\u00fcl hozz\u00e1adott vdev t\u00f6mb\u00f6ket a poolb\u00f3l (de csak, ha ez sparse vagy mirror). Hasznos kis r\u00e9szlet.<\/p>\n

A k\u00f6vetkez\u0151 a sl\u00e1gerlist\u00e1nkon \u2014 pool checkpoints<\/b>. R\u00f6viden \u2014 pillanatk\u00e9pek az eg\u00e9sz pool \u00e1llapot\u00e1r\u00f3l, DE lehet\u0151s\u00e9get biztos\u00edtanak a m\u00f3dos\u00edt\u00e1sok visszavon\u00e1s\u00e1ra nemcsak az adatokban, hanem a poolon enged\u00e9lyezett funkci\u00f3kban \u00e9s a strukt\u00far\u00e1val kapcsolatos v\u00e1ltoz\u00e1sokban is. Egy \u00fajabb lehet\u0151s\u00e9g a biztons\u00e1g garant\u00e1l\u00e1s\u00e1ra.<\/p>\n

Pool inicializ\u00e1l\u00e1s <\/b> \u2014 a m\u00e9lyen fekv\u0151 t\u00e1rol\u00f3 null\u00e1kkal val\u00f3 felt\u00f6lt\u00e9se. Hasznos a thin provisioned lemezekkel val\u00f3 munkav\u00e9gz\u00e9shez, hogy egy\u00e9rtelm\u0171en kijel\u00f6lj\u00e9k a helyet, \u00e9s elker\u00fclj\u00e9k a v\u00e1ratlan teljes\u00edtm\u00e9nycs\u00f6kken\u00e9seket a j\u00f6v\u0151ben.<\/p>\n

Projekt sz\u00e1mvitel \u00e9s kv\u00f3ta<\/b> \u2014 a m\u00e1r megl\u00e9v\u0151 kv\u00f3tamechanizmusban most m\u00e1r lehet\u0151s\u00e9g van a projektek k\u00f6z\u00f6tti megoszt\u00e1sra.<\/p>\n

Csatorna programok<\/b> \u2014 lehet\u0151s\u00e9g atomikusan v\u00e9grehajtani az adminisztrat\u00edv feladatokat Lua szkriptekkel. Vannak korl\u00e1tok a v\u00e9grehajt\u00e1si id\u0151re \u00e9s a mem\u00f3ria haszn\u00e1latra. Ha automatiz\u00e1l\u00e1ssal foglalkozik \u2014 ez \u00d6nnek val\u00f3.<\/p>\n

K\u00f6zvetlen IO<\/b> \u2014 a k\u00f6nny\u0171s\u00e9g kedv\u00e9\u00e9rt \u00e1tvitt\u00fck a Direct IO m\u0171k\u00f6d\u00e9s\u00e9t, bel\u00fcl semmi nem v\u00e1ltozott (csak a h\u00edv\u00e1sok a legt\u00f6bb esetben a cache kihagy\u00e1s\u00e1val t\u00f6rt\u00e9nnek), viszont most a k\u00edv\u00e1nt m\u00f3don m\u0171k\u00f6dni akar\u00f3 szoftver nem fog csal\u00f3dni.<\/p>\n

Projekt Pyzfs<\/b> beleker\u00fclt a f\u0151 t\u00e1rol\u00f3ba \u00e9s a ZFSonLinux projekt sz\u00e1rnyai al\u00e1 ker\u00fclt. Most t\u00f6bb eszk\u00f6z \u00e1ll rendelkez\u00e9sre a Pythonb\u00f3l val\u00f3 kezel\u00e9shez (\u00e9s \u00edgy a modul t\u00e1mogat\u00e1sa is biztons\u00e1gosabb lesz). Emellett sok python szkriptet \u00e1t\u00edrtak python3-ra.<\/p>\n

Most pedig j\u00f6jj\u00f6n a finoms\u00e1g \u2014 teljes\u00edtm\u00e9ny<\/h4>\n

\nMost m\u00e1r a scrub \u00e9s resilver m\u0171veletek sor\u00e1n el\u0151sz\u00f6r a metaadatokat olvass\u00e1k be, azt\u00e1n pedig a maxim\u00e1lis adatokat. soros<\/b> Ez\u00e1ltal a t\u00f6mb helyre\u00e1ll\u00edt\u00e1sa \u00e9s az integrit\u00e1s ellen\u0151rz\u00e9se maxim\u00e1lis sebess\u00e9ggel t\u00f6rt\u00e9nik.<\/p>\n

Allok\u00e1ci\u00f3s oszt\u00e1lyok<\/b> \u2014 a vdev t\u00f6mb\u00f6k eset\u00e9ben megjelent a hordoz\u00f3t\u00edpus, \u00edgy a metaadatok \/ deduplik\u00e1ci\u00f3s t\u00e1bl\u00e1k (DDT) \/ kevesebb mint X Kbyte m\u00e9ret\u0171 adatblokkok t\u00e1rol\u00e1s\u00e1t k\u00fcl\u00f6n vdev t\u00f6mbre lehet helyezni a nagyobb teljes\u00edtm\u00e9ny\u0171 lemezekb\u0151l. T\u00f6bb sebess\u00e9get a sebess\u00e9g isten\u00e9nek!<\/u> (val\u00f3j\u00e1ban \u2014 ez a lehet\u0151s\u00e9g nagyon hasznos lesz a k\u00f6zelg\u0151 DRAID<\/a><\/noindex>).<\/p>\n

Sok adminisztr\u00e1ci\u00f3s parancs most gyorsabban m\u0171k\u00f6dik a metaadatok c\u00e9lzott gyors\u00edt\u00f3t\u00e1raz\u00e1s\u00e1nak k\u00f6sz\u00f6nhet\u0151en (p\u00e9ld\u00e1ul, zfs list, zfs get<\/i>).<\/p>\n

Az adatallok\u00e1ci\u00f3s folyamat p\u00e1rhuzamos\u00edtott<\/b>, most minden egyes szabad ter\u00fclet (metaslab) eset\u00e9ben t\u00f6bb allok\u00e1tor k\u00e9sz\u00fcl. Az NVME-t\u0151l term\u00e9szetesen nem lehet mindent kisajtolni, de jobb lesz.<\/p>\n

Az integrit\u00e1s k\u00e9sleltetett helyre\u00e1ll\u00edt\u00e1sa<\/b> megakad\u00e1lyozza, hogy a t\u00f6mb egyszerre t\u00f6bb lemez \u00fajraszerkeszt\u00e9s\u00e9vel legyen megterhelve, \u00e9s ezt sorban fogja elv\u00e9gezni. Ezzel cs\u00f6kken a teljes\u00edtm\u00e9nyre gyakorolt hat\u00e1s \u00e9s a \u00fajraszerkeszt\u00e9s id\u0151tartama.<\/p>\n

A k\u00f6tetekkel nagy mennyis\u00e9g\u0171 pool import\u00e1l\u00e1sakor<\/b> megn\u00f6velt\u00e9k a rendszerbe val\u00f3 regisztr\u00e1ci\u00f3 sebess\u00e9g\u00e9t.<\/p>\n

Ezenk\u00edv\u00fcl QAT<\/b> most lehet\u0151v\u00e9 teszi a titkos\u00edt\u00e1si \u00e9s ellen\u0151rz\u0151\u00f6sszeg-sz\u00e1m\u00edt\u00e1si feladatok kihelyez\u00e9s\u00e9t.<\/p>\n

Plusz rengeteg apr\u00f3bb v\u00e1ltoz\u00e1s (t\u00e9nyleg t\u00f6bb mint 2000 commit a kiad\u00e1sban!).<\/a><\/noindex><\/p>\n

Na \u00e9s a desszert \u2014 intrik\u00e1k<\/h3>\n

\nB\u00e1r a ZFSonLinux gyorsan hozz\u00e1adja az \u00faj Linux kernel verzi\u00f3k t\u00e1mogat\u00e1s\u00e1t (jelenleg a 2.6.32 - 5.1* verzi\u00f3k t\u00e1mogatottak), a kernel karbantart\u00f3i nyilv\u00e1nval\u00f3 \u00e9rdektelens\u00e9get mutatnak a k\u00fcls\u0151 modulok ir\u00e1nt (\"...semmilyen \u00e9rdekl\u0151d\u00e9s\u00fcnk nincs a
\nk\u00fcls\u0151 kernel modulok ir\u00e1nt...<\/a><\/noindex> \u2014 mondta greg k-h\"). \u00cdgy a 5.0 \u00e1gba illeszked\u0151 hat\u00e9kony m\u0171k\u00f6d\u00e9shez sz\u00fcks\u00e9ges rendszerh\u00edv\u00e1sok . Ilyen patch-csel a ZFS teljes\u00edtm\u00e9nye jelent\u0151sen cs\u00f6kkenni fog. Ments\u00e9get jelent, hogy ezt a funkci\u00f3t a modul oldal\u00e1n is meg lehet val\u00f3s\u00edtani, amit val\u00f3sz\u00edn\u0171leg meg is fognak tenni. De addig is p\u00e9ld\u00e1t vehet a NixOS-t\u00f3l \u2014 \u0151k <\/a><\/noindex>egyszer\u0171en vissza\u00e1ll\u00edtott\u00e1k a patch-t a kernelben A projektj\u00fcknek most Code of Conduct-juk is van, ami egy hull\u00e1mot ind\u00edtott el a vit\u00e1kban. De mi \u00e1lljuk \ud83d\ude42<\/a><\/noindex> A v\u00e9g\u00e9n \u00e9n, egy egyszer\u0171 szellemi munk\u00e1s, v\u00e1ratlanul h\u0151s lettem ennek a men\u0151 csatorn\u00e1nak a t\u00f6rt\u00e9net\u00e9ben!<\/p>\n

Mindenkinek m\u0171k\u00f6d\u0151 ment\u00e9seket \u00e9s stabil kiad\u00e1sokat k\u00edv\u00e1nunk!<\/p>\n

kiad\u00e1s a Github-on<\/p>\n

Hasznos linkek:
\n \u2014 bevezet\u0151m a ZFS-hez<\/a><\/noindex>
\n \u2014 N\u00e9h\u00e1ny nappal ezel\u0151tt kiadt\u00e1k a ZFSonLinux \u00faj, stabil verzi\u00f3j\u00e1t, amely mostant\u00f3l k\u00f6zponti szerepet j\u00e1tszik az OpenZFS fejleszt\u00e9si vil\u00e1g\u00e1ban.<\/a><\/noindex>
\n
Forr\u00e1s: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0411\u0443\u043a\u0432\u0430\u043b\u044c\u043d\u043e \u043d\u0430 \u0434\u043d\u044f\u0445 \u0440\u0435\u043b\u0438\u0437\u043d\u0443\u043b\u0438 \u0441\u0432\u0435\u0436\u0443\u044e stable \u0432\u0435\u0440\u0441\u0438\u044e ZFSonLinux, \u043f\u0440\u043e\u0435\u043a\u0442\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0442\u0435\u043f\u0435\u0440\u044c \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0446\u0435\u043d\u0442\u0440\u0430\u043b\u044c\u043d\u044b\u043c \u0432 \u043c\u0438\u0440\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 OpenZFS. \u041f\u0440\u043e\u0449\u0430\u0439, OpenSolaris, \u0437\u0434\u0440\u0430\u0432\u0441\u0442\u0432\u0443\u0439 \u0441\u0432\u0438\u0440\u0435\u043f\u044b\u0439 GPL-CDDL \u043d\u0435\u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u044b\u0439 \u043c\u0438\u0440 Linux. \u041f\u043e\u0434 \u043a\u0430\u0442\u043e\u043c \u043e\u0431\u0437\u043e\u0440 \u0441\u0430\u043c\u044b\u0445 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u044b\u0445 \u0432\u0435\u0449\u0435\u0439 (\u0435\u0449\u0451 \u0431\u044b, 2200 \u043a\u043e\u043c\u043c\u0438\u0442\u043e\u0432!), \u0430 \u043d\u0430 \u0434\u0435\u0441\u0435\u0440\u0442 \u2014 \u043d\u0435\u043c\u043d\u043e\u0433\u043e \u0438\u043d\u0442\u0440\u0438\u0433. \u041d\u043e\u0432\u044b\u0435 \u0444\u0438\u0448\u043a\u0438 \u041a\u043e\u043d\u0435\u0447\u043d\u043e \u0436\u0435, \u0441\u0430\u043c\u0430\u044f \u043e\u0436\u0438\u0434\u0430\u0435\u043c\u0430\u044f \u2014 \u043d\u0430\u0442\u0438\u0432\u043d\u043e\u0435 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u0435. \u0422\u0435\u043f\u0435\u0440\u044c \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u0442\u044c \u0442\u043e\u043b\u044c\u043a\u043e \u043d\u0443\u0436\u043d\u044b\u0435 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":26117,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-34664","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47ZFSonLinux 0.8: jellemz\u0151k, stabiliz\u00e1l\u00e1s, intrik\u00e1k. \u00c9s a trim | ProHoster","description":"\ud83e\udd47 ZFSonLinux 0.8: funkci\u00f3k, stabiliz\u00e1l\u00e1s, intrik\u00e1k. 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