{"id":34437,"date":"2019-10-31T21:58:20","date_gmt":"2019-10-31T18:58:20","guid":{"rendered":"https:\/\/prohoster.info\/blog\/glavnye-preimushhestva-zextras-powerstore\/"},"modified":"2019-10-31T21:58:20","modified_gmt":"2019-10-31T18:58:20","slug":"glavnye-preimushhestva-zextras-powerstore","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/glavnye-preimushhestva-zextras-powerstore","title":{"rendered":"Hlavn\u00e9 v\u00fdhody Zextras PowerStore","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Zextras PowerStore je jedn\u00fdm z naj\u017eiadanej\u0161\u00edch doplnkov pre Zimbra Collaboration Suite, ktor\u00fd patr\u00ed do Zextras Suite. Pou\u017eitie tohto roz\u0161\u00edrenia, ktor\u00e9 umo\u017e\u0148uje prida\u0165 do Zimbry mo\u017enos\u0165 hierarchick\u00e9ho riadenia nosi\u010dov, ako aj v\u00fdrazne zn\u00ed\u017ei\u0165 miesto na pevn\u00fdch diskoch obsaden\u00e9 po\u0161tov\u00fdmi schr\u00e1nkami pou\u017e\u00edvate\u013eov v\u010faka pou\u017eitiu kompresn\u00fdch a deduplika\u010dn\u00fdch algoritmov, nakoniec vedie k v\u00fdrazn\u00e9mu zn\u00ed\u017eeniu n\u00e1kladov na vlastn\u00edctvo celej infra\u0161trukt\u00fary Zimbra. A ke\u010f sa Zextras PowerStore pou\u017e\u00edva v prostred\u00ed poskytovate\u013eov SaaS, re\u010d m\u00f4\u017ee by\u0165 o obrovsk\u00fdch \u00faspor\u00e1ch. Ale to nie s\u00fa v\u0161etky mo\u017enosti, ktor\u00e9 m\u00f4\u017ee tomuto roz\u0161\u00edreniu pon\u00faknu\u0165 spr\u00e1vca Zimbra. Aby sme zistili, \u010do \u010fal\u0161ie Zextras PowerStore pon\u00faka spr\u00e1vcovi Zimbra, obr\u00e1tili sme sa na <b>Luca Arcara<\/b>, senior konzultanta pre rie\u0161enia v Zextras, ktor\u00fd akt\u00edvne participuje na v\u00fdvoji Zextras Suite. N\u00e1zorne n\u00e1m vymenoval \u0161tyri k\u013e\u00fa\u010dov\u00e9 funkcie Zextras PowerStore, ktor\u00e9 sa bud\u00fa p\u00e1\u010di\u0165 ka\u017ed\u00e9mu spr\u00e1vcovi Zimbra.<\/p>\n<p><img decoding=\"async\" alt=\"Hlavn\u00e9 v\u00fdhody Zextras PowerStore\" src=\"\/wp-content\/uploads\/2019\/05\/8cc92d4307daad091ef6520b01127d71.jpg\" style=\"display:block;margin: 0 auto;\" \/><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p><b>4. Mo\u017enos\u0165 nastavenia nosi\u010dov po in\u0161tal\u00e1cii Zimbra<\/b><\/p>\n<p>V predch\u00e1dzaj\u00facom \u010dl\u00e1nku sme hovorili o tom, ako optimalizova\u0165 po\u0161tov\u00e9 \u00falo\u017eisk\u00e1 Zimbra, aby mohli vykazova\u0165 maxim\u00e1lny v\u00fdkon. Okrem toho, \u017ee spr\u00e1vca Zimbra Collaboration Suite Open-Source Edition mus\u00ed u\u017e v \u0161t\u00e1diu navrhovania infra\u0161trukt\u00fary rozhodn\u00fa\u0165 o objemoch po\u0161tov\u00fdch \u00falo\u017e\u00edsk, jednou z odpor\u00fa\u010dan\u00ed bolo d\u00f4kladne zv\u00e1\u017ei\u0165 v\u00fdber po\u010dtu bajtov pre inode, ktor\u00e9 sa vytv\u00e1raj\u00fa na pevn\u00fdch diskoch pomocou utilitky mke2fs a parametrom -i pri vytv\u00e1ran\u00ed na nich s\u00faborov\u00e9ho syst\u00e9mu.<\/p>\n<p>Av\u0161ak na presn\u00e9 ur\u010denie priemernej ve\u013ekosti spr\u00e1v po\u010das n\u00e1vrhu mus\u00ed ma\u0165 spr\u00e1vca syst\u00e9mu dar jasnovidectva. Samozrejme, tento dar m\u00e1 len m\u00e1lokto, a tak\u00e9 parametre ako priemern\u00fd objem spr\u00e1vy a ve\u013ekos\u0165 \u00falo\u017eiska je st\u00e1le lep\u0161ie rie\u0161i\u0165 na z\u00e1klade \u0161tatistiky pr\u00e1ce Zimbra v 'bojoch'. <\/p>\n<p>A administr\u00e1tor Zimbra tak prich\u00e1dza na pomoc roz\u0161\u00edrenie Zextras PowerStore, ktor\u00e9, v\u010faka mo\u017enosti vyu\u017e\u00edvania hierarchick\u00e9ho riadenia \u00falo\u017eiskami, umo\u017e\u0148uje pripoji\u0165 \u010fal\u0161ie \u00falo\u017eisko a t\u00fdm odlo\u017ei\u0165 prij\u00edmanie rozhodnut\u00ed t\u00fdkaj\u00facich sa priemernej ve\u013ekosti spr\u00e1v a objemu \u00falo\u017en\u00fdch zariaden\u00ed a\u017e do vyhotovenia plnohodnotnej \u0161tatistiky.<\/p>\n<p><b>3. Mo\u017enos\u0165 vyhn\u00fa\u0165 sa pou\u017e\u00edvaniu LVM<\/b><\/p>\n<p>Spr\u00e1vca logick\u00fdch zv\u00e4zkov, hoci je v\u00fdborn\u00fdm rie\u0161en\u00edm, ktor\u00e9 na prv\u00fd poh\u013ead skvele vyhovuje po\u0161tov\u00e9mu \u00falo\u017eisku Zimbra v\u010faka mo\u017enosti roz\u0161\u00edrenia a vytv\u00e1rania snapshotov, m\u00e1 v\u0161ak mno\u017estvo nev\u00fdhod. K\u013e\u00fa\u010dov\u00fdmi z nich s\u00fa zlo\u017eitej\u0161ie riadenie zv\u00e4zkov v porovnan\u00ed s oby\u010dajn\u00fdmi diskami a vysok\u00e1 pravdepodobnos\u0165 zlyhania cel\u00e9ho LVM pri po\u0161koden\u00ed jedn\u00e9ho z fyzick\u00fdch nosi\u010dov, \u010do je dos\u0165 kritick\u00e9, ak ide o rozsiahle in\u0161tal\u00e1cie Zimbra.<\/p>\n<p>Zextras PowerStore na druhej strane umo\u017e\u0148uje vzda\u0165 sa pou\u017e\u00edvania LVM a poskytuje mo\u017enos\u0165 roz\u0161\u00edri\u0165 dostupn\u00fd objem pripojen\u00edm oby\u010dajn\u00fdch pevn\u00fdch diskov. T\u00fdmto sp\u00f4sobom m\u00f4\u017ee administr\u00e1tor Zimbra maxim\u00e1lne zjednodu\u0161i\u0165 spr\u00e1vu \u00falo\u017en\u00fdch zariaden\u00ed a s\u00fa\u010dasne optimalizova\u0165 proces ich z\u00e1lohovania, \u010d\u00edm sa cel\u00e1 infra\u0161trukt\u00fara st\u00e1va odolnej\u0161ou vo\u010di v\u00fdpadkom.<\/p>\n<p><b>2. Mo\u017enos\u0165 pres\u00fava\u0165 d\u00e1ta na in\u00e9 zv\u00e4zky a \u00falo\u017eisk\u00e1<\/b><\/p>\n<p>Ak\u00fako\u013evek probl\u00e9m je v\u017edy lep\u0161ie predch\u00e1dza\u0165, ne\u017e ho nesk\u00f4r odstra\u0148ova\u0165. Toto pravidlo plat\u00ed aj pre situ\u00e1ciu, ako je zlyhanie pevn\u00e9ho disku a s n\u00edm spojen\u00e1 \u00fapln\u00e1 alebo \u010diasto\u010dn\u00e1 strata d\u00e1t. Pl\u00e1novan\u00e1 v\u00fdmena \u00falo\u017en\u00fdch nosi\u010dov je pomerne be\u017enou praxou medzi poskytovate\u013emi SaaS, ktor\u00ed maj\u00fa jednoduch\u0161ie napl\u00e1nova\u0165 prevent\u00edvnu prest\u00e1vku a vopred informova\u0165 o nej z\u00e1kazn\u00edkov, ne\u017e zn\u00e1\u0161a\u0165 straty a po\u0161kodzova\u0165 svoj imid\u017e kv\u00f4li nielen v\u010das zlyhaj\u00facemu pevn\u00e9mu disku.<\/p>\n<p>Na prv\u00fd poh\u013ead sa m\u00f4\u017ee zda\u0165, \u017ee prenies\u0165 d\u00e1ta z jedn\u00e9ho pevn\u00e9ho disku na druh\u00fd je jednoduch\u00e9. Za be\u017en\u00fdch podmienok sa to rob\u00ed pomocou n\u00e1stroja dd, ktor\u00fd je s\u00fa\u010das\u0165ou ka\u017ed\u00e9ho linuxov\u00e9ho distrib\u00facie. Av\u0161ak nie je to tak jednoduch\u00e9. Okrem d\u00e1t, dd starostlivo prenesie na nov\u00fd disk v\u0161etky nastavenia starej s\u00faborovej s\u00fastavy a zbav\u00ed v\u00e1s mo\u017enosti ich zmeni\u0165. Takisto, ak sa na disk nejak\u00fdm sp\u00f4sobom dostali rootkity a in\u00e9 potenci\u00e1lne nebezpe\u010dn\u00e9 v\u00edrusy, dd ich taktie\u017e starostlivo prenesie na nov\u00fd pevn\u00fd disk. Preto je lep\u0161ie pren\u00e1\u0161a\u0165 po\u0161tov\u00e9 schr\u00e1nky z jedn\u00e9ho disku na druh\u00fd pri pl\u00e1novanej v\u00fdmene pomocou Zextras PowerStore. V\u010faka jeho pou\u017eitiu m\u00e1 administr\u00e1tor Zimbry mo\u017enos\u0165 prenies\u0165 na nov\u00fd disk iba to najd\u00f4le\u017eitej\u0161ie \u2014 po\u0161tov\u00e9 schr\u00e1nky a ich obsah, pri\u010dom m\u00e1 mo\u017enos\u0165 slobodne nastavi\u0165 s\u00faborov\u00fd syst\u00e9m na \u0148om.<\/p>\n<p>V ka\u017edej vysoko za\u0165a\u017eenej infra\u0161trukt\u00fare, \u010di u\u017e ide o ve\u013ek\u00fd podnik alebo SaaS poskytovate\u013ea, existuj\u00fa aj po\u0161tov\u00e9 schr\u00e1nky, k ktor\u00fdm mus\u00ed by\u0165 pr\u00edstup nepretr\u017eit\u00fd. T\u00fdka sa to po\u0161tov\u00fdch schr\u00e1nok top mana\u017e\u00e9rov, po\u0161tov\u00fdch schr\u00e1nok na po\u017eiadavky od z\u00e1kazn\u00edkov a podobne. Pri pou\u017eit\u00ed \u0161tandardnej verzie nie je mo\u017en\u00e9 prenies\u0165 jednotliv\u00fa po\u0161tov\u00fa schr\u00e1nku zo \u00falo\u017eiska, ktor\u00e9 je uzatvoren\u00e9 na \u00fadr\u017ebu, na <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sk\/server\/\"   title=\"server\" data-wpil-keyword-link=\"linked\">server<\/a>, ktor\u00e9 na\u010falej funguje. Aby sa zabr\u00e1nilo v\u00fdpadkom po\u010das \u00fadr\u017eby po\u0161tov\u00e9ho \u00falo\u017eiska, v ktorom sa nach\u00e1dzaj\u00fa tak\u00e9to schr\u00e1nky, d\u00e1 sa to dosiahnu\u0165 aj pomocou roz\u0161\u00edrenia Zextras PowerStore, ktor\u00e9 umo\u017e\u0148uje pren\u00e1\u0161a\u0165 jednotliv\u00e9 schr\u00e1nky medzi po\u0161tov\u00fdmi \u00falo\u017eiskami nach\u00e1dzaj\u00facimi sa v tej istej infra\u0161trukt\u00fare Zimbra. T\u00fdmto sp\u00f4sobom m\u00f4\u017ee Zextras PowerStore pom\u00f4c\u0165 administr\u00e1torovi Zimbry zv\u00fd\u0161i\u0165 bezpe\u010dnos\u0165 a z\u00e1rove\u0148 v\u00fdrazne skr\u00e1ti\u0165 dobu v\u00fdpadku po\u010das manipul\u00e1cie s pevn\u00fdmi diskami.<\/p>\n<p>Okrem toho, Zextras PowerStore m\u00f4\u017ee pom\u00f4c\u0165 pri z\u00e1chrane d\u00e1t z \u010diasto\u010dne po\u0161koden\u00e9ho disku. V\u00fdvoj\u00e1ri zabezpe\u010dili mo\u017enos\u0165 ignorova\u0165 chyby \u010d\u00edtania pri prenose po\u0161tov\u00fdch schr\u00e1nok, tak\u017ee v niektor\u00fdch situ\u00e1ci\u00e1ch, ke\u010f nosi\u010d s d\u00e1tami u\u017e za\u010dal vykazova\u0165 chyby, v\u010faka PowerStore m\u00e1 administr\u00e1tor st\u00e1le mo\u017enos\u0165 zachr\u00e1ni\u0165 v\u00e4\u010d\u0161inu inform\u00e1ci\u00ed z neho.<\/p>\n<p><b>1. Mo\u017enos\u0165 pripojenia objektov\u00fdch \u00falo\u017e\u00edsk<\/b><\/p>\n<p>Hlavn\u00fdm rysom Zextras PowerStore, ktor\u00fd Luca Arcara pova\u017euje za k\u013e\u00fa\u010dov\u00fd, je mo\u017enos\u0165 hor\u00faceho pripojenia objektov\u00fdch \u00falo\u017e\u00edsk k infra\u0161trukt\u00fare Zimbra, \u010do umo\u017e\u0148uje spr\u00e1vcovi takmer okam\u017eit\u00fd pr\u00edstup ku v\u0161etk\u00fdm v\u00fdhod\u00e1m pou\u017e\u00edvania ako cloudov\u00fdch \u00falo\u017e\u00edsk, tak aj lok\u00e1lne nasaden\u00fdch slu\u017eieb.<\/p>\n<p>Vzh\u013eadom na to, \u017ee mnoh\u00ed poskytovatelia cloudov\u00fdch slu\u017eieb dnes pon\u00fakaj\u00fa pr\u00edstup k svojim \u00falo\u017eisk\u00e1m na z\u00e1klade predplatn\u00e9ho, maj\u00fa spr\u00e1vcovia Zimbra nekone\u010dn\u00e9 mo\u017enosti pre z\u00e1lohovanie a \u0161k\u00e1lovanie svojej infra\u0161trukt\u00fary, ako aj realiz\u00e1ciu hardv\u00e9rovej redundancie za ve\u013emi rozumn\u00e9 peniaze.<\/p>\n<p>Okrem toho mo\u017enos\u0165 uklada\u0165 \u010das\u0165 \u00fadajov v cloude alebo v geograficky vzdialen\u00fdch \u00falo\u017eisk\u00e1ch umo\u017e\u0148uje ur\u00fdchli\u0165 proces obnovenia funk\u010dnosti Zimbra v pr\u00edpade rozsiahlych incidentov, \u010do v\u00fdrazne zvy\u0161uje bezpe\u010dnos\u0165 pou\u017e\u00edvania tohto rie\u0161enia v podniku.<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/zimbra\/blog\/453304\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>Zextras PowerStore \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0434\u043d\u0438\u043c \u0438\u0437 \u0441\u0430\u043c\u044b\u0445 \u0432\u043e\u0441\u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0439 \u0434\u043b\u044f Zimbra Collaboration Suite, \u0432\u0445\u043e\u0434\u044f\u0449\u0438\u0445 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 Zextras Suite. \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u044d\u0442\u043e\u0433\u043e \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u0432 Zimbra \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0438\u0435\u0440\u0430\u0440\u0445\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043d\u043e\u0441\u0438\u0442\u0435\u043b\u044f\u043c\u0438, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0441\u0435\u0440\u044c\u0435\u0437\u043d\u043e \u0441\u043d\u0438\u0437\u0438\u0442\u044c \u043c\u0435\u0441\u0442\u043e \u043d\u0430 \u0436\u0435\u0441\u0442\u043a\u0438\u0445 \u0434\u0438\u0441\u043a\u0430\u0445, \u0437\u0430\u043d\u0438\u043c\u0430\u0435\u043c\u043e\u0435 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u043c\u0438 \u044f\u0449\u0438\u043a\u0430\u043c\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0437\u0430 \u0441\u0447\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u043e\u0432 \u043a\u043e\u043c\u043f\u0440\u0435\u0441\u0441\u0438\u0438 \u0438 \u0434\u0435\u0434\u0443\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u0438, \u0432 \u043a\u043e\u043d\u0435\u0447\u043d\u043e\u043c \u0438\u0442\u043e\u0433\u0435 \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a \u0441\u0435\u0440\u044c\u0435\u0437\u043d\u043e\u043c\u0443 \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044e 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