{"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\/cs\/blog\/administrirovanie\/glavnye-preimushhestva-zextras-powerstore","title":{"rendered":"Hlavn\u00ed v\u00fdhody Zextras PowerStore","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Zextras PowerStore je jedn\u00edm z nej\u017e\u00e1dan\u011bj\u0161\u00edch roz\u0161\u00ed\u0159en\u00ed pro Zimbra Collaboration Suite, kter\u00e9 je sou\u010d\u00e1st\u00ed Zextras Suite. Pou\u017eit\u00ed tohoto roz\u0161\u00ed\u0159en\u00ed, kter\u00e9 umo\u017e\u0148uje p\u0159idat do Zimbry mo\u017enost hierarchick\u00e9ho \u0159\u00edzen\u00ed m\u00e9di\u00ed a tak\u00e9 v\u00fdznamn\u011b sn\u00ed\u017eit m\u00edsto na pevn\u00fdch disc\u00edch vyu\u017e\u00edvan\u00e9 po\u0161tovn\u00edmi schr\u00e1nkami u\u017eivatel\u016f d\u00edky pou\u017eit\u00ed kompresn\u00edch a deduplica\u010dn\u00edch algoritm\u016f, nakonec vede k v\u00fdrazn\u00e9mu sn\u00ed\u017een\u00ed celkov\u00fdch n\u00e1klad\u016f na vlastnictv\u00ed cel\u00e9 infrastruktury Zimbra. A kdy\u017e se Zextras PowerStore pou\u017e\u00edv\u00e1 v podm\u00ednk\u00e1ch poskytovatel\u016f SaaS, m\u016f\u017ee to znamenat obrovsk\u00e9 \u00faspory. Ale to nen\u00ed zdaleka v\u0161echno, co toto roz\u0161\u00ed\u0159en\u00ed m\u016f\u017ee nab\u00eddnout administr\u00e1torovi Zimbra. Abychom zjistili, co dal\u0161\u00edho m\u016f\u017ee Zextras PowerStore nab\u00eddnout administr\u00e1torovi Zimbra, obr\u00e1tili jsme se na <b>Luca Arcara<\/b>, vedouc\u00edho konzultanta pro \u0159e\u0161en\u00ed ve Zextras, kter\u00fd se aktivn\u011b pod\u00edl\u00ed na v\u00fdvoji Zextras Suite. Uvedl n\u00e1m \u010dty\u0159i kl\u00ed\u010dov\u00e9 funkce Zextras PowerStore, kter\u00e9 pot\u011b\u0161\u00ed ka\u017ed\u00e9ho administr\u00e1tora Zimbra.<\/p>\n<p><img decoding=\"async\" alt=\"Hlavn\u00ed 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\u017enost konfigurace m\u00e9di\u00ed po instalaci Zimbry<\/b><\/p>\n<p>V minul\u00e9m \u010dl\u00e1nku jsme psali o tom, jak optimalizovat po\u0161tovn\u00ed \u00falo\u017ei\u0161t\u011b Zimbra, aby dosahovala maxim\u00e1ln\u00ed mo\u017en\u00e9 v\u00fdkonnosti. Krom\u011b toho, \u017ee by se administr\u00e1tor Zimbra Collaboration Suite Open-Source Edition m\u011bl ji\u017e v etap\u011b n\u00e1vrhu infrastruktury rozhodnout o objemech po\u0161tovn\u00edch \u00falo\u017ei\u0161\u0165, jedn\u00edm z doporu\u010den\u00ed bylo pe\u010dliv\u011b se postarat o v\u00fdb\u011br po\u010dtu bajt\u016f pro inode, kter\u00e9 se vytv\u00e1\u0159ej\u00ed na pevn\u00fdch disc\u00edch pomoc\u00ed utility mke2fs a parametru -i p\u0159i vytv\u00e1\u0159en\u00ed souborov\u00e9ho syst\u00e9mu.<\/p>\n<p>Aby bylo mo\u017en\u00e9 p\u0159esn\u011b ur\u010dit pr\u016fm\u011brnou velikost zpr\u00e1v v etap\u011b n\u00e1vrhu, mus\u00ed m\u00edt syst\u00e9mov\u00fd administr\u00e1tor dar jasnovidectv\u00ed. O\u010dividn\u011b tento dar m\u00e1 jen m\u00e1lokdo, a takov\u00e9 parametry jako pr\u016fm\u011brn\u00fd objem zpr\u00e1vy a velikost \u00falo\u017ei\u0161t\u011b je st\u00e1le lep\u0161\u00ed \u0159e\u0161it se statistikou ze skute\u010dn\u00e9ho provozu Zimbry. <\/p>\n<p>A zde p\u0159ich\u00e1z\u00ed na pomoc spr\u00e1vci Zimbra dopln\u011bk Zextras PowerStore, kter\u00fd d\u00edky mo\u017enosti vyu\u017eit\u00ed hierarchick\u00e9ho \u0159\u00edzen\u00ed \u00falo\u017ei\u0161\u0165 umo\u017e\u0148uje p\u0159ipojit dal\u0161\u00ed jednotku a t\u00edm odlo\u017eit rozhodov\u00e1n\u00ed o pr\u016fm\u011brn\u00e9 velikosti zpr\u00e1vy a objemech datov\u00fdch nosi\u010d\u016f, dokud se neobjev\u00ed plnohodnotn\u00e1 statistika.<\/p>\n<p><b>3. Mo\u017enost vyhnout se pou\u017eit\u00ed LVM<\/b><\/p>\n<p>Spr\u00e1vce logick\u00fdch svazk\u016f, a\u010dkoliv je vynikaj\u00edc\u00edm \u0159e\u0161en\u00edm, kter\u00e9 se na prvn\u00ed pohled zd\u00e1 b\u00fdt ide\u00e1ln\u00ed pro mailov\u00e9 \u00falo\u017ei\u0161t\u011b Zimbra d\u00edky mo\u017enosti roz\u0161i\u0159ov\u00e1n\u00ed a vytv\u00e1\u0159en\u00ed snapshot\u016f, m\u00e1 p\u0159esto mnoho nev\u00fdhod. Kl\u00ed\u010dov\u00fdmi z nich jsou slo\u017eit\u011bj\u0161\u00ed spr\u00e1va svazk\u016f ve srovn\u00e1n\u00ed s b\u011b\u017en\u00fdmi disky a vysok\u00e1 pravd\u011bpodobnost selh\u00e1n\u00ed cel\u00e9ho LVM p\u0159i po\u0161kozen\u00ed jednoho z fyzick\u00fdch nosi\u010d\u016f, co\u017e je pom\u011brn\u011b kritick\u00e9, pokud jde o rozs\u00e1hl\u00e9 instalace Zimbra.<\/p>\n<p>Zextras PowerStore na druhou stranu umo\u017e\u0148uje vyhnout se pou\u017eit\u00ed LVM a d\u00e1v\u00e1 mo\u017enost roz\u0161\u00ed\u0159en\u00ed dostupn\u00e9ho objemu p\u0159ipojen\u00edm b\u011b\u017en\u00fdch pevn\u00fdch disk\u016f. To umo\u017e\u0148uje spr\u00e1vci Zimbra maxim\u00e1ln\u011b zjednodu\u0161it spr\u00e1vu jednotek a t\u00edm optimalizovat proces jejich z\u00e1lohov\u00e1n\u00ed, co\u017e \u010din\u00ed celou infrastrukturu v\u00edce odolnou v\u016f\u010di poruch\u00e1m.<\/p>\n<p><b>2. Mo\u017enost p\u0159enosu dat na jin\u00e9 svazky a nosi\u010de<\/b><\/p>\n<p>Jakoukoli probl\u00e9m je v\u017edy lep\u0161\u00ed p\u0159edej\u00edt, ne\u017e pozd\u011bji \u0159e\u0161it jeho n\u00e1sledky. Toto pravidlo plat\u00ed i pro situaci, jako je selh\u00e1n\u00ed pevn\u00e9ho disku a s t\u00edm spojen\u00e1 \u00fapln\u00e1 nebo \u010d\u00e1ste\u010dn\u00e1 ztr\u00e1ta dat. Pl\u00e1novan\u00e1 v\u00fdm\u011bna datov\u00fdch nosi\u010d\u016f je pom\u011brn\u011b b\u011b\u017en\u00e1 praxe mezi poskytovateli SaaS, kte\u0159\u00ed je jednodu\u0161eji pl\u00e1nuj\u00ed preventivn\u00ed p\u0159est\u00e1vku a v\u010das informuj\u00ed klienty, ne\u017e aby nesli ztr\u00e1ty a po\u0161kodili sv\u016fj obraz kv\u016fli pozd\u011b selh\u00e1vaj\u00edc\u00edmu pevn\u00e9mu disku.<\/p>\n<p>M\u016f\u017ee se zd\u00e1t, \u017ee p\u0159enos dat z jednoho pevn\u00e9ho disku na druh\u00fd je snadn\u00fd \u00fakol. Obvykle se to prov\u00e1d\u00ed pomoc\u00ed utilitky dd, kter\u00e1 je sou\u010d\u00e1st\u00ed ka\u017ed\u00e9 distribuce Linuxu. Ale nen\u00ed to tak jednoduch\u00e9. Krom\u011b dat toti\u017e dd pe\u010dliv\u011b p\u0159enese na nov\u00fd disk tak\u00e9 v\u0161echny nastaven\u00ed star\u00e9ho souborov\u00e9ho syst\u00e9mu a zbav\u00ed v\u00e1s mo\u017enosti je upravit. Tak\u00e9 v p\u0159\u00edpad\u011b, \u017ee se na disk dostaly rootkity a jin\u00e9 potenci\u00e1ln\u011b nebezpe\u010dn\u00e9 viry, dd je tak\u00e9 pe\u010dliv\u011b p\u0159enese na nov\u00fd pevn\u00fd disk. Pr\u00e1v\u011b proto je p\u0159i pl\u00e1novan\u00e9 v\u00fdm\u011bn\u011b nejl\u00e9pe p\u0159en\u00e1\u0161et po\u0161tovn\u00ed schr\u00e1nky z jednoho disku na druh\u00fd pomoc\u00ed Zextras PowerStore. D\u00edky jeho pou\u017eit\u00ed m\u00e1 administr\u00e1tor Zimbra mo\u017enost p\u0159en\u00e9st na nov\u00fd disk pouze to nejd\u016fle\u017eit\u011bj\u0161\u00ed \u2014 po\u0161tovn\u00ed schr\u00e1nky a jejich obsah, a t\u00edm z\u00edskat svobodu p\u0159i nastavov\u00e1n\u00ed souborov\u00e9ho syst\u00e9mu na n\u011bm.<\/p>\n<p>V jak\u00e9koli vysoce zat\u00ed\u017een\u00e9 infrastruktu\u0159e, a\u0165 u\u017e jde o velkou firmu nebo poskytovatele SaaS, existuj\u00ed tak\u00e9 takov\u00e9 po\u0161tovn\u00ed schr\u00e1nky, kter\u00e9 mus\u00ed b\u00fdt k dispozici neust\u00e1le. To se t\u00fdk\u00e1 po\u0161tovn\u00edch schr\u00e1nek vrcholov\u00fdch mana\u017eer\u016f, schr\u00e1nek pro z\u00e1kaznick\u00e9 dotazy a podobn\u011b. P\u0159i pou\u017eit\u00ed standardn\u00ed verze nen\u00ed mo\u017en\u00e9 p\u0159en\u00e9st jednotlivou po\u0161tovn\u00ed schr\u00e1nku ze skladu, kter\u00fd se uzav\u00edr\u00e1 na \u00fadr\u017ebu, na <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/\"   title=\"server\" data-wpil-keyword-link=\"linked\">server<\/a>, kter\u00fd i nad\u00e1le funguje. Aby se p\u0159ede\u0161lo prostoj\u016fm b\u011bhem \u00fadr\u017eby po\u0161tovn\u00edho skladu, ve kter\u00e9m se nach\u00e1zej\u00ed takov\u00e9 schr\u00e1nky, lze tak\u00e9 vyu\u017e\u00edt roz\u0161\u00ed\u0159en\u00ed Zextras PowerStore, kter\u00e9 umo\u017e\u0148uje p\u0159en\u00e1\u0161et jednotliv\u00e9 schr\u00e1nky mezi po\u0161tovn\u00edmi sklady v r\u00e1mci jedn\u00e9 infrastruktury Zimbra. T\u00edmto zp\u016fsobem m\u016f\u017ee Zextras PowerStore pomoci administr\u00e1torovi Zimbra zv\u00fd\u0161it bezpe\u010dnost a tak\u00e9 v\u00fdrazn\u011b zkr\u00e1tit dobu prostoj\u016f p\u0159i manipulaci s pevn\u00fdmi disky.<\/p>\n<p>Krom\u011b toho m\u016f\u017ee Zextras PowerStore pomoci p\u0159i z\u00e1chran\u011b dat z \u010d\u00e1ste\u010dn\u011b po\u0161kozen\u00e9ho disku. V\u00fdvoj\u00e1\u0159i zohlednili mo\u017enost ignorovat chyby \u010dten\u00ed p\u0159i p\u0159enosu po\u0161tovn\u00edch schr\u00e1nek, tak\u017ee v \u0159ad\u011b situac\u00ed, kdy nosi\u010d dat u\u017e za\u010dal pokr\u00fdt \u0161patn\u00fdmi bloky, m\u00e1 administr\u00e1tor i d\u00edky PowerStore st\u00e1le mo\u017enost zachr\u00e1nit v\u011bt\u0161inu informac\u00ed z n\u011bj.<\/p>\n<p><b>1. Mo\u017enost p\u0159ipojen\u00ed objektov\u00fdch \u00falo\u017ei\u0161\u0165<\/b><\/p>\n<p>Hlavn\u00edm l\u00e1kadlem Zextras PowerStore je podle Luco Arcary mo\u017enost hork\u00e9ho p\u0159ipojen\u00ed infrastrukturn\u00edch objektov\u00fdch \u00falo\u017ei\u0161\u0165 Zimbra, co\u017e umo\u017e\u0148uje administr\u00e1torovi prakticky okam\u017eit\u011b z\u00edskat p\u0159\u00edstup ke v\u0161em v\u00fdhod\u00e1m vyu\u017e\u00edv\u00e1n\u00ed jak cloudov\u00fdch \u00falo\u017ei\u0161\u0165, tak lok\u00e1ln\u011b nasazen\u00fdch slu\u017eeb.<\/p>\n<p>Vzhledem k tomu, \u017ee dnes mnoho cloudov\u00fdch poskytovatel\u016f nab\u00edz\u00ed p\u0159\u00edstup k sv\u00fdm \u00falo\u017ei\u0161t\u00edm na z\u00e1klad\u011b p\u0159edplatn\u00e9ho, administr\u00e1to\u0159i Zimbra maj\u00ed nekone\u010dn\u00e9 mo\u017enosti pro z\u00e1lohov\u00e1n\u00ed a \u0161k\u00e1lov\u00e1n\u00ed sv\u00e9 infrastruktury a implementaci hardwarov\u00e9 redundancy za velmi rozumn\u00e9 ceny.<\/p>\n<p>Nav\u00edc schopnost ukl\u00e1dat \u010d\u00e1st dat v cloudu nebo na geograficky vzd\u00e1len\u00fdch \u00falo\u017ei\u0161t\u00edch zrychluje proces obnoven\u00ed funk\u010dnosti Zimbru v p\u0159\u00edpad\u011b jak\u00fdchkoli rozs\u00e1hl\u00fdch incident\u016f, co\u017e v\u00fdrazn\u011b zvy\u0161uje bezpe\u010dnost pou\u017eit\u00ed tohoto \u0159e\u0161en\u00ed ve spole\u010dnosti.<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 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":25949,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-34437","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"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.\" \/>\n\t<meta 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