{"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\/et\/blog\/administrirovanie\/glavnye-preimushhestva-zextras-powerstore","title":{"rendered":"Zextras PowerStore peamised eelised","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Zextras PowerStore on \u00fcks n\u00f5utumaid lisandeid Zimbra Collaboration Suite'is, mis kuulub Zextras Suite'i. Selle laienduse kasutamine, mis v\u00f5imaldab Zimbras hierarhilist andmekandjate haldust ja oluliselt v\u00e4hendab kasutajate postkastide jaoks k\u00f5vakettal tarvitatavat ruumi, kasutades tihendamis- ja dedupplikatsiooni algoritme, toob l\u00f5puks kaasa m\u00e4rkimisv\u00e4\u00e4rse kogu Zimbra infrastruktuuri omamiskulude v\u00e4henemise. Kui Zextras PowerStore'i kasutatakse SaaS teenusepakkujate kontekstis, v\u00f5ib see t\u00e4hendada tohutut kokkuhoidu. Kuid see ei ole kaugeltki ainus v\u00f5imalus, mida Zimbra administraatorile pakub see laiendus. Selleks, et teada saada, milliseid lisav\u00f5imalusi Zextras PowerStore veel Zimbra administraatorile pakub, p\u00f6\u00f6rdusime Luca Arcara<\/b>, Zextras'i lahenduste vanemkonsultandi poole, kes osaleb aktiivselt Zextras Suite'i arenduses. Ta tutvustas meile nelja p\u00f5hifunktsiooni Zextras PowerStore'is, mis meeldivad igale Zimbra administraatorile.<\/p>\n

\"Zextras<\/a><\/noindex><\/p>\n

4. V\u00f5ime seadistada andmekandjad p\u00e4rast Zimbra installimist<\/b><\/p>\n

Eelmisel artiklis r\u00e4\u00e4kisime, kuidas optimeerida Zimbra postihalduss\u00fcsteemide salvestusruumi, et saavutada maksimaalne j\u00f5udlus. Lisaks sellele peab Zimbra Collaboration Suite Open-Source Editioni administraator juba infrastruktuuri projekteerimise etapis otsustama postihaldusruumi mahud. \u00dcks soovitusest oli hoolikalt valida inode'i baitide arv, mis luuakse k\u00f5vakettadel utiliidi mke2fs ja parameetri -i abil failis\u00fcsteemi loomisel.<\/p>\n

Kuid et t\u00e4pselt m\u00e4\u00e4rata keskmist s\u00f5numi suurust projekteerimise etapis, peab s\u00fcsteemiadministraator omama selgeltn\u00e4gemise annet. Loomulikult on selliseid anneid vaid \u00fcksikutel ja selliseid parameetreid nagu keskmine s\u00f5numi maht ja salvestusseadme suurus on parem otsustada, tuginedes Zimbra t\u00f6\u00f6 statistikale \u201elahingutingimustes\u201c. <\/p>\n

Ja siin tuleb Zimbra administraatorile appi Zextras PowerStore'i t\u00e4iendus, mis v\u00f5imaldab Hierarhilise meediumihalduse abil \u00fchendada lisaandmekandja ning seel\u00e4bi edasi l\u00fckata otsuste tegemine keskmise s\u00f5numi suuruse ja andmekandjate mahtude osas kuni t\u00e4ieliku statistika ilmumiseni.<\/p>\n

3. V\u00f5imalus v\u00e4ltida LVM-i kasutamist<\/b><\/p>\n

Loogiliste mahutite hall, kuigi on suurep\u00e4rane lahendus, mis esmapilgul tundub Zimbra e-postikapid osas ideaalne t\u00e4nu laienemise ja snapshotside tegemise v\u00f5imalusele, omab siiski mitmeid puudusi. Peamisteks neist on v\u00f5rreldes tavap\u00e4raste ketastega keeruline mahutite haldamine ning k\u00f5rge t\u00f5en\u00e4osus, et terve LVM eba\u00f5nnestub, kui \u00fcks f\u00fc\u00fcsiline meedium puruneb, mis on \u00fcsna kriitiline, kui tegemist on laiaulatuslike Zimbra installatsioonidega.<\/p>\n

Zextras PowerStore v\u00f5imaldab loobuda LVM-i kasutamisest ning v\u00f5imaldab laieneda tavaliste k\u00f5vaketaste \u00fchendamise kaudu. See lihtsustab Zimbra administraatori jaoks andmekandjate haldamist ja optimeerib nende varundamisprotsessi, muutes kogu infrastruktuuri usaldusv\u00e4\u00e4rsemaks.<\/p>\n

2. V\u00f5imalus andmete \u00fcleviimiseks teistele mahtudele ja andmekandjatele<\/b><\/p>\n

Iga probleem on alati parem ennetada, kui hiljem selle tagaj\u00e4rgi likvideerida. See reegel kehtib ulatuslike k\u00f5vaketaste rikete ja sellega seotud andmete t\u00e4ieliku v\u00f5i osalise kaotuse puhul. Ajakohaste andmekandjate planeeritud vahetamine on \u00fcsna levinud praktika SaaS-teenuse pakkujate seas, kes eelistavad planeerida regulaarset hoolduspausi ja teavitada kliente sellest eelnevalt, kui kannatada kahjumit ja kahjustada oma mainet eba\u00f5nnestunud k\u00f5vaketaste t\u00f5ttu.<\/p>\n

Kas tundub, et mis v\u00f5iks olla lihtsam kui andmete edastamine \u00fchest k\u00f5vakettast teise? Tavaliselt tehakse seda dd utiliidi abil, mis on iga Linuxi distributsiooni osa. Kuid asjad pole nii lihtsalt. Lisaks andmetele kannab dd hoolikalt uuele kettale \u00fcle ka k\u00f5ik vana failis\u00fcsteemi seadistused, j\u00e4ttes teile v\u00f5imaluse neid muuta. Kui kettale on mingil moel sattunud rootkitid ja teised potentsiaalselt ohtlikud viirused, kannab dd ka need hoolikalt uuele k\u00f5vakettale. Just seet\u00f5ttu on poste kaustade \u00fcleviimine \u00fchelt kettalt teisele selle planeeritud vahetuse ajal k\u00f5ige parem teostada Zextras PowerStore'i kaudu. T\u00e4nu sellele saavad Zimbra administraatorid v\u00f5imaluse \u00fcle kanda uuele kettale ainult k\u00f5ige olulisem \u2014 postkastid ja nende sisu, saades seejuures vabaduse failis\u00fcsteemi seadistamiseks.<\/p>\n

Ka igas k\u00f5rgkoormatud infrastruktuuris, olgu see suur ettev\u00f5te v\u00f5i SaaS-teenuse pakkuja, on ka sellised postkastid, millele peab alati olema juurdep\u00e4\u00e4s. See h\u00f5lmab tippjuhtide postkaste, klienditeenindusele suunatud postkaste ja nii edasi. Tavalise versiooni kasutamisel pole v\u00f5imalik \u00fche postkasti \u00fcleviimine ladustamiselt, mis on hoolduseks suletud, t\u00f6\u00f6tavale server<\/a>, millele juurdep\u00e4\u00e4s on j\u00e4tkuvalt toimiv, v\u00f5imalik. Postihoiu hooldust\u00f6\u00f6de ajal, kus need postkastid asuvad, saab v\u00e4ltida seiskumist ka Zextras PowerStore'i laienduse abil, mis v\u00f5imaldab postkastide \u00fcleviimist erinevate postihoiustike vahel, mis on Zimbra infrastruktuuris. Seega v\u00f5ib Zextras PowerStore aidata Zimbra administraatoril suurendada turvalisust ja samas oluliselt v\u00e4hendada seiskumise aega, kui teostatakse k\u00f5vakettaga seotud manipuleerimist.<\/p>\n

Lisaks v\u00f5ib Zextras PowerStore aidata andmete taastamisel osaliselt riknenud kettalt. Arendajad on ette n\u00e4inud v\u00f5imaluse lugemisvigu ignoreerida kirjade \u00fcleviimisel, seega olukordades, kus andmekandja on juba hakanud halvenema, on PowerStore abil administraatoril siiski v\u00f5imalik suurem osa teabest p\u00e4\u00e4sta.<\/p>\n

1. Objektide salvestite \u00fchendamise v\u00f5imalus<\/b><\/p>\n

Zextras PowerStore'i peamiseks eeliseks peab Luca Arcara v\u00f5imalust kuum\u00fchendusega objekti salvestite \u00fchendamiseks Zimbra infrastruktuuri, mis v\u00f5imaldab administraatoril praktiliselt kohe juurdep\u00e4\u00e4su k\u00f5igile pilvesalvestite ja kohapeal paiknevate teenuste kasutamise eelisetele.<\/p>\n

Arvestades, et paljud pilveteenuse pakkujad pakuvad t\u00e4na juurdep\u00e4\u00e4su oma salvestitele tellimismudeli alusel, avanevad Zimbra administraatorite jaoks l\u00f5putud v\u00f5imalused oma infrastruktuuri varundamiseks, skaleerimiseks ning riistvara \u00fclepakkumise rakendamiseks v\u00e4ga m\u00f5istlike hindadega.<\/p>\n

Lisaks v\u00f5imaldab osa andmete salvestamine pilves v\u00f5i geograafiliselt kaugetes salvestuskohtades kiirendada Zimbra t\u00f6\u00f6 taastamise protsessi suuremate s\u00fcndmuste korral, mis suurendab oluliselt selle lahenduse turvalisust ettev\u00f5ttes.
\n
Allikas: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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