{"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\/ro\/blog\/administrirovanie\/glavnye-preimushhestva-zextras-powerstore","title":{"rendered":"Principalele avantaje ale Zextras PowerStore","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Zextras PowerStore este una dintre cele mai solicitate extensii pentru Zimbra Collaboration Suite, care face parte din Zextras Suite. Utilizarea acestei extensii, care adaug\u0103 \u00een Zimbra capacitatea de gestionare ierarhic\u0103 a mediei, precum \u0219i reducerea semnificativ\u0103 a spa\u021biului pe hard disk utilizat de c\u0103su\u021bele po\u0219tale ale utilizatorilor prin utilizarea algoritmilor de compresie \u0219i deduplicare, conduce \u00een cele din urm\u0103 la o reducere considerabil\u0103 a costului total de proprietate a \u00eentregii infrastructuri Zimbra. Iar c\u00e2nd Zextras PowerStore este utilizat \u00een condi\u021bii de furnizori SaaS, pot avea loc economii colosale. Dar acestea nu sunt toate posibilit\u0103\u021bile pe care aceast\u0103 extensie le poate oferi administratorului Zimbra. Pentru a afla ce altceva poate oferi Zextras PowerStore administratorului Zimbra, am apelat la Luca Arcara<\/b>, consultant senior \u00een solu\u021bii la Zextras, care particip\u0103 activ la dezvoltarea Zextras Suite. El ne-a men\u021bionat patru func\u021bionalit\u0103\u021bi cheie ale Zextras PowerStore care vor fi pe placul oric\u0103rui administrator Zimbra.<\/p>\n

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

4. Capacitatea de a configura mediile dup\u0103 instalarea Zimbra<\/b><\/p>\n

\u00cen articolul anterior, am discutat despre cum se pot optimiza stoc\u0103rile po\u0219tale Zimbra pentru a putea demonstra cea mai bun\u0103 performan\u021b\u0103 posibil\u0103. Pe l\u00e2ng\u0103 faptul c\u0103 administratorul Zimbra Collaboration Suite Open-Source Edition trebuie s\u0103 decid\u0103 \u00een etapa de proiectare a infrastructurii volumul stoc\u0103rilor po\u0219tale, una dintre recomand\u0103ri a fost s\u0103 se acorde o aten\u021bie deosebit\u0103 alegerii num\u0103rului de octe\u021bi pentru inode, care se formeaz\u0103 pe hard disk-uri cu ajutorul utilitarului mke2fs \u0219i parametrului -i \u00een momentul cre\u0103rii sistemului de fi\u0219iere.<\/p>\n

Cu toate acestea, pentru a determina cu exactitate dimensiunea medie a mesajelor \u00een etapa de proiectare, administratorul de sistem trebuie s\u0103 aib\u0103 darul clairvoyance-ului. Evident, acest dar \u00eel au doar c\u00e2\u021biva, iar parametrii precum volumul mediu al mesajului \u0219i dimensiunea suportului ar trebui aborda\u021bi mai bine av\u00e2nd la dispozi\u021bie statistici privind func\u021bionarea Zimbra \u00een condi\u021bii \u201ede lupt\u0103\u201d. <\/p>\n

\u0218i aici, extensia Zextras PowerStore vine \u00een ajutorul administratorului Zimbra, care, datorit\u0103 capacit\u0103\u021bii de a utiliza Managementul ierarhic al suportului, permite conectarea unui dispozitiv de stocare suplimentar \u0219i, prin urmare, am\u00e2n\u0103 deciziile cu privire la dimensiunea medie a mesajelor \u0219i la volumele de date p\u00e2n\u0103 la apari\u021bia unor statistici complete.<\/p>\n

3. Posibilitatea de a evita utilizarea LVM<\/b><\/p>\n

Managerul de volume logice, de\u0219i este o solu\u021bie excelent\u0103 care, la prima vedere, se potrive\u0219te perfect pentru stocarea de emailuri Zimbra datorit\u0103 capacit\u0103\u021bii de extindere \u0219i de realizare a snapshot-urilor, are totu\u0219i multe dezavantaje. Cele mai importante dintre acestea sunt gestionarea complicat\u0103 \u00een compara\u021bie cu unit\u0103\u021bile obi\u0219nuite \u0219i probabilitatea ridicat\u0103 ca \u00eentregul LVM s\u0103 cedeze \u00een cazul deterior\u0103rii unuia dintre suporturile fizice, ceea ce este destul de critic \u00een cazul instal\u0103rilor de mari dimensiuni Zimbra.<\/p>\n

Zextras PowerStore, pe de alt\u0103 parte, permite renun\u021barea la utilizarea LVM \u0219i ofer\u0103 posibilitatea de extindere a volumului disponibil prin conectarea de hard disk-uri obi\u0219nuite. Acest lucru permite administratorului Zimbra s\u0103 simplifice la maximum gestionarea suporturilor, optimiz\u00e2nd astfel procesul de rezervare \u0219i, datorit\u0103 acestui lucru, s\u0103 fac\u0103 \u00eentreaga infrastructur\u0103 mai rezistent\u0103 la defec\u021biuni.<\/p>\n

2. Posibilitatea de a muta datele pe alte volume \u0219i suporturi<\/b><\/p>\n

Este \u00eentotdeauna mai bine s\u0103 previi o problem\u0103 dec\u00e2t s\u0103 \u00eencerci s\u0103 \u00eei repari consecin\u021bele. Aceast\u0103 regul\u0103 se aplic\u0103 foarte bine \u00een situa\u021bii precum defectarea unui hard disk \u0219i pierderea total\u0103 sau par\u021bial\u0103 a datelor asociate. \u00cenlocuirea programat\u0103 a suporturilor de informa\u021bii este o practic\u0103 destul de comun\u0103 \u00een r\u00e2ndul furnizorilor SaaS, care prefer\u0103 s\u0103 planifice o pauz\u0103 de \u00eentre\u021binere \u0219i s\u0103 \u00ee\u0219i informeze din timp clien\u021bii, dec\u00e2t s\u0103 suporte pierderi \u0219i s\u0103 \u00ee\u0219i \u0219tirbeasc\u0103 imaginea din cauza unui hard disk defectat la momentul nepotrivit.<\/p>\n

Pare s\u0103 fie simplu s\u0103 mu\u021bi datele de pe un hard disk pe altul. \u00cen condi\u021bii normale, acest lucru se face cu ajutorul utilitarului dd, care este inclus \u00een orice distribu\u021bie Linux. Totu\u0219i, nu este totul at\u00e2t de simplu. Pe l\u00e2ng\u0103 date, dd va transfera cu grij\u0103 pe noul disc toate set\u0103rile vechii sisteme de fi\u0219iere, priv\u00e2ndu-te de posibilitatea de a le modifica. De asemenea, \u00een cazul \u00een care pe disc au ajuns \u00een vreun fel rootkit-uri \u0219i alte viru\u0219i poten\u021bial periculo\u0219i, dd va transfera \u0219i ace\u0219tia pe noul hard disk. Din acest motiv, este recomandat s\u0103 mu\u021bi c\u0103su\u021bele po\u0219tale de pe un disc pe altul, \u00een timpul \u00eenlocuirii planificate, folosind Zextras PowerStore. Prin utilizarea acestuia, administratorul Zimbra are posibilitatea de a transfera pe noul disc doar cele mai importante elemente - c\u0103su\u021bele po\u0219tale \u0219i con\u021binutul acestora, av\u00e2nd \u00een acela\u0219i timp libertatea de a configura sistemul de fi\u0219iere pe el.<\/p>\n

De asemenea, \u00een orice infrastructur\u0103 cu \u00eenc\u0103rcare mare, fie c\u0103 este vorba de o mare companie sau de un furnizor SaaS, exist\u0103 c\u0103su\u021be po\u0219tale la care accesul trebuie s\u0103 fie constant. Acestea includ c\u0103su\u021bele po\u0219tale ale managerilor de top, c\u0103su\u021bele pentru pl\u00e2ngerile clien\u021bilor \u0219i a\u0219a mai departe. Folosind versiunea standard, transferul unei c\u0103su\u021be po\u0219tale de la un depozit care este \u00eenchis pentru \u00eentre\u021binere pe serverul<\/a>, care continu\u0103 s\u0103 func\u021bioneze, nu este posibil. Evitarea \u00eentreruperii \u00een timpul \u00eentre\u021binerii depozitului de po\u0219t\u0103, unde se afl\u0103 aceste c\u0103su\u021be po\u0219tale, poate fi realizat\u0103 \u0219i cu ajutorul extensiei Zextras PowerStore, care permite transferul de c\u0103su\u021be individuale \u00eentre depozitele de po\u0219t\u0103 aflate \u00een aceea\u0219i infrastructur\u0103 Zimbra. Astfel, Zextras PowerStore poate ajuta administratorul Zimbra s\u0103 \u00eembun\u0103t\u0103\u021beasc\u0103 securitatea \u0219i, de asemenea, s\u0103 reduc\u0103 semnificativ timpul de nefunc\u021bionare \u00een timpul manipul\u0103rii hard disk-urilor.<\/p>\n

\u00cen plus, Zextras PowerStore poate ajuta la recuperarea datelor de pe un disc par\u021bial deteriorat. Dezvoltatorii au prev\u0103zut posibilitatea de a ignora erorile de citire \u00een timpul transferului c\u0103su\u021belor po\u0219tale, astfel c\u0103 \u00een multe situa\u021bii, c\u00e2nd suportul de date a \u00eenceput s\u0103 fie afectat de sectoare defecte, datorit\u0103 PowerStore, administratorul are \u00een continuare posibilitatea de a salva cea mai mare parte a informa\u021biei de pe acesta.<\/p>\n

1. Posibilitatea de conectare a stoc\u0103rilor obiect.<\/b><\/p>\n

Func\u021bia principal\u0103 a Zextras PowerStore, conform lui Luca Arcara, este posibilitatea de a conecta \u00een mod direct infrastructura Zimbra la spa\u021biile de stocare obiect, ceea ce permite administratorului s\u0103 aib\u0103 acces aproape instantaneu la toate avantajele oferite at\u00e2t de stoc\u0103rile cloud, c\u00e2t \u0219i de serviciile implementate local.<\/p>\n

Av\u00e2nd \u00een vedere c\u0103 mul\u021bi furnizori de servicii cloud ofer\u0103 ast\u0103zi acces la spa\u021biile lor de stocare prin intermediul unui model pe baz\u0103 de abonament, administratorii Zimbra au la dispozi\u021bie oportunit\u0103\u021bi interminabile pentru rezervarea \u0219i scalarea infrastructurii lor, precum \u0219i pentru realizarea redundan\u021bei hardware la costuri foarte rezonabile.<\/p>\n

\u00cen plus, posibilitatea de a stoca o parte din date \u00een cloud sau \u00een loca\u021bii de stocare la distan\u021b\u0103 permite accelerarea procesului de recuperare a func\u021bionalit\u0103\u021bii Zimbra \u00een cazul unor incidente majore, ceea ce cre\u0219te semnificativ securitatea utiliz\u0103rii acestei solu\u021bii \u00een cadrul unei companii.
\n
Sursa: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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