{"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 koost\u00f6\u00f6s\u00fcsteemile, mis kuulub Zextras Suite'i koosseisu. Selle laienduse kasutamine, mis v\u00f5imaldab lisada Zimbra v\u00f5imaluse hierarhiliseks andmehalduseks ja t\u00f5siselt v\u00e4hendada kasutajate postkastide poolt k\u00f5vakettal kasutatavat ruumi t\u00e4nu kompressiooni ja deduplikatsiooni algoritmide kasutamisele, toob l\u00f5puks kaasa olulise kulude v\u00e4henemise kogu Zimbra infrastruktuuri omamise osas. Ja kui Zextras PowerStore'i kasutatakse SaaS-teenusepakkujate tingimustes, siis v\u00f5ib r\u00e4\u00e4kida tohutust kokkuhoiust. Kuid see pole kaugeltki ainus v\u00f5imalus, mida see laiendus Zimbra administraatorile pakub. Selleks, et teada saada, mida veel Zextras PowerStore Zimbra administraatorile pakkuda suudab, p\u00f6\u00f6rdusime Luca Arcara<\/b>, Zextrasi lahenduste vanemkonsultandi poole, kes osaleb aktiivselt Zextras Suite'i arendamisel. Ta nimetas meile neli peamist Zextras PowerStore'i v\u00f5imalust, mis meeldivad igale Zimbra administraatorile.<\/p>\n

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

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

Eelmises artiklis r\u00e4\u00e4kisime, kuidas optimeerida Zimbra postihaldusruume, et need demonstreeriksid maksimaalset v\u00f5imalikku j\u00f5udlust. Lisaks sellele, et Zimbra Koost\u00f6\u00f6s\u00fcsteemi avatud l\u00e4htekoodiga v\u00e4ljaande administraator peab juba infrastruktuuri projekteerimise etapis otsustama postihaldusruumide mahud, oli \u00fcheks soovituseks hoolikalt valida inode'ide jaoks m\u00e4\u00e4ratletud baitide arv, mis tekivad k\u00f5vakettadel utiliidi mke2fs ja parameetriga -i kasutamisel failis\u00fcsteemi loomisel.<\/p>\n

Kuid selleks, et t\u00e4pselt m\u00e4\u00e4rata keskmine s\u00f5numi suurus projekteerimise etapis, peab s\u00fcsteemiadministraatoril olema ennustamisv\u00f5ime. Loomulikult on selline v\u00f5ime vaid v\u00e4hestel, ja selliseid parameetreid nagu keskmine s\u00f5numi mahuhulk ja salvestusseadmestik on siiski parem arutada, kui Zimbra t\u00f6\u00f6statistika \u201elahingutingimustes\u201c k\u00e4es. <\/p>\n

Ja ja komponent Zimbra adminile tuleb appi lisand Zextras PowerStore, mis t\u00e4nu hierarhilise salvestushalduse v\u00f5imalusele v\u00f5imaldab \u00fchendada t\u00e4iendava ketta ja seel\u00e4bi viia otsuste tegemise keskmiste s\u00f5numite suurusest ja andmekandjate mahtudest edasi, kuni ilmub t\u00e4ielik statistika.<\/p>\n

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

Loogiliste mahtude haldur, kuigi on suurep\u00e4rane lahendus, mis esmapilgul sobib Zimbra meilisalvestusele suurep\u00e4raselt laienemise ja snapshots'ide v\u00f5imaluse t\u00f5ttu, omab siiski hulgaliselt miinuseid. Peamised neist on v\u00f5rreldes tavaliste ketastega keerulisem mahtude haldamine ning ka suur t\u00f5en\u00e4osus, et kogu LVM eba\u00f5nnestub, kui m\u00f5ni f\u00fc\u00fcsiline kandevigastus on, mis on kriitiline, kui tegemist on ulatuslike Zimbra installatsioonidega.<\/p>\n

Zextras PowerStore v\u00f5imaldab omakorda loobuda LVM-i kasutamisest ja annab v\u00f5imaluse laiendada saadaval olevat mahtu tavaliste k\u00f5vakettade \u00fchendamise kaudu. See v\u00f5imaldab Zimbra adminil maksimaalselt lihtsustada salvestite haldamist ja koos sellega optimeerida nende varundusprotsessi, muutes kogu infrastruktuuri vastupidavamaks.<\/p>\n

2. V\u00f5imalus andmeid muudele mahtudele ja kandjatele \u00fcle kanda<\/b><\/p>\n

Iga probleemi on alati parem ennetada kui hiljem selle tagaj\u00e4rgi likvideerida. See reegel kehtib h\u00e4sti olukordade kohta, nagu k\u00f5vaketta rike ja sellega kaasnev t\u00e4ielik v\u00f5i osaline andmete kaotus. Planeeritud andmekandjate vahetus on \u00fcsna levinud praktika SaaS-teenuse pakkujate seas, kellel on lihtsam planeerida ennetava pausi ja teavitada kliente sellest eelnevalt, kui kannatada kahjusid ja kahjustada oma mainet poolt\u00f5rke t\u00f5ttu, mis ei olnud \u00f5igeaegselt katkenud.<\/p>\n

Tundub, et mis v\u00f5iks olla lihtsam kui andmete \u00fcleviimine \u00fchelt k\u00f5vakettalt teisele? Tavalistes oludes toimub see utiliidi dd abil, mis on osa igast Linuxi distributsioonist. Kuid asjad ei ole nii lihtsad. Lisaks andmetele kannab dd ettevaatlikult \u00fcle k\u00f5ik vana failis\u00fcsteemi seaded ja j\u00e4tab teile v\u00f5imaluse neid muuta. Kui kettale on mingil moel sattunud rootkitid ja teised potentsiaalselt ohtlikud viirused, kannab dd ettevaatlikult needki \u00fcle uuele k\u00f5vakettale. Just seet\u00f5ttu on posti raiumine \u00fchelt kettalt teisele parem teostada Zextras PowerStore'i abil. Selle kasutamisega saab Zimbra administraator v\u00f5imaluse \u00fcle kanda uuele kettale ainult k\u00f5ige olulisem \u2014 postkastid ja nende sisu, omades samas vabadust failis\u00fcsteemi seadistamisel.<\/p>\n

Igas k\u00f5rgelt koormatud infrastruktuuris, olgu selleks suur ettev\u00f5te v\u00f5i SaaS-teenuse pakkuja, on ka selliseid postkaste, millele peab olema pidev juurdep\u00e4\u00e4s. See kehtib tippjuhtide postkastide, klientidelt tulevate p\u00e4ringute postkastide jne kohta. Juhul kui kasutada tavaversiooni, ei ole v\u00f5imalik \u00fchte postkasti siirdada hoiust, mis suletakse hoolduseks, server<\/a>, mis j\u00e4tkab t\u00f6\u00f6d. Postkaste, mis asuvad hooldataval postihoiul, saab v\u00e4ltida seiskumist ka Zextras PowerStore'i laienduse abil, mis v\u00f5imaldab kantida \u00fcksikuid postkaste Zimbra infrastruktuuris asuvate erinevate postihoidlate vahel. Seel\u00e4bi v\u00f5ib Zextras PowerStore aidata Zimbra administraatoril suurendada turvalisust ning oluliselt v\u00e4hendada seiskumisaega, kui teostatakse k\u00f5vakettaga seotud toiminguid.<\/p>\n

Lisaks v\u00f5ib Zextras PowerStore aidata andmete p\u00e4\u00e4stmisel osaliselt kahjustatud kettalt. Arendajad on ette n\u00e4inud lugemisvigade ignoreerimise v\u00f5imaluse postkastide \u00fclekandmisel, seega teatud olukordades, kui andmeid sisaldav kandja hakkab juba halvenema, on PowerStore'i abil administraatoril ikkagi v\u00f5imalik p\u00e4\u00e4sta suurem osa infost.<\/p>\n

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

Zextras PowerStore'i peamine eelis, nagu Luca Arcara t\u00f5deb, on v\u00f5imalus kuumalt \u00fchendada Zimbra infrastruktuuri objektide salvestust, mis v\u00f5imaldab administraatoril peaaegu koheselt p\u00e4\u00e4seda juurde k\u00f5igile nii pilvesalvestuse kui ka kohapeal paigaldatud teenuste kasutamise eelistest.<\/p>\n

Arvestades, et paljud pilveteenuse pakkujad pakuvad t\u00e4na juurdep\u00e4\u00e4su oma salvestustele liikmemudeli kaudu, avanevad Zimbra administratoritele l\u00f5putud v\u00f5imalused oma infrastruktuuri varundamiseks ja skaleerimiseks, samuti riistvarade \u00fclej\u00e4\u00e4kide rakendamiseks v\u00e4ga m\u00f5istlike hindadega.<\/p>\n

Lisaks v\u00f5imalus salvestada osa andmeid pilves v\u00f5i geograafiliselt kaugetes salvestustes kiirendab Zimbra taastamise protsessi mis tahes ulatuslike s\u00fcndmuste korral, mis oluliselt suurendab selle lahenduse kasutamise turvalisust ettev\u00f5ttes.
\n
Allikas: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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