{"id":105332,"date":"2022-10-19T09:36:56","date_gmt":"2022-10-19T07:36:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-stratis-3-3-instrumentariya-dlya-upravleniya-lokalnymi-hranilishhami"},"modified":"2022-10-19T09:36:56","modified_gmt":"2022-10-19T07:36:56","slug":"vypusk-stratis-3-3-instrumentariya-dlya-upravleniya-lokalnymi-hranilishhami","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-stratis-3-3-instrumentariya-dlya-upravleniya-lokalnymi-hranilishhami","title":{"rendered":"Verze Stratis 3.3, n\u00e1stroje pro spr\u00e1vu m\u00edstn\u00edch \u00falo\u017ei\u0161\u0165","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Byla zve\u0159ejn\u011bna verze projektu Stratis 3.3, kterou vyv\u00edj\u00ed spole\u010dnost Red Hat a komunita Fedora, zam\u011b\u0159en\u00e1 na standardizaci a zjednodu\u0161en\u00ed n\u00e1stroj\u016f pro konfiguraci a spr\u00e1vu poolu jednoho nebo v\u00edce m\u00edstn\u00edch disk\u016f. Stratis nab\u00edz\u00ed funkce jako dynamick\u00e9 p\u0159id\u011blov\u00e1n\u00ed \u00falo\u017en\u00e9ho prostoru, snapshoty, zaji\u0161t\u011bn\u00ed integrity a vytv\u00e1\u0159en\u00ed vrstev pro cache. Podpora Stratis je integrov\u00e1na do distribuc\u00ed Fedora a RHEL po\u010d\u00ednaje verz\u00ed Fedora 28 a RHEL 8.2. K\u00f3d projektu je distribuov\u00e1n pod licenc\u00ed MPL 2.0. <\/p>\n
Syst\u00e9m se do zna\u010dn\u00e9 m\u00edry opakuje podle sv\u00fdch mo\u017enost\u00ed v roz\u0161\u00ed\u0159en\u00fdch n\u00e1stroj\u00edch pro spr\u00e1vu odd\u00edl\u016f ZFS a Btrfs, ale je implementov\u00e1n jako vrstva (d\u00e9mon stratisd), kter\u00e1 pracuje nad subsyst\u00e9mem device-mapper j\u00e1dra Linuxu (pou\u017e\u00edvaj\u00ed se moduly dm-thin, dm-cache, dm-thinpool, dm-raid a dm-integrity) a souborov\u00fdm syst\u00e9mem XFS. Na rozd\u00edl od ZFS a Btrfs, komponenty Stratis funguj\u00ed v\u00fdhradn\u011b v u\u017eivatelsk\u00e9m prostoru a nevy\u017eaduj\u00ed na\u010d\u00edt\u00e1n\u00ed specifick\u00fdch modul\u016f j\u00e1dra. Projekt je p\u016fvodn\u011b prezentov\u00e1n jako nevy\u017eaduj\u00edc\u00ed odbornou kvalifikaci k administraci syst\u00e9mu pro \u00falo\u017ei\u0161t\u011b. <\/p>\n
Pro spr\u00e1vu je k dispozici D-Bus API a CLI n\u00e1stroj. Fungov\u00e1n\u00ed Stratis bylo testov\u00e1no s blokov\u00fdmi za\u0159\u00edzen\u00edmi na b\u00e1zi LUKS (\u0161ifrovan\u00e9 odd\u00edly), mdraid, dm-multipath, iSCSI, logick\u00fdmi svazky LVM, stejn\u011b jako s r\u016fzn\u00fdmi HDD, SSD a NVMe za\u0159\u00edzen\u00edmi. P\u0159i p\u0159\u00edtomnosti jednoho disku v poolu umo\u017e\u0148uje Stratis pou\u017e\u00edvat logick\u00e9 odd\u00edly s podporou snapshot\u016f pro vracen\u00ed zm\u011bn. P\u0159i p\u0159id\u00e1n\u00ed n\u011bkolika za\u0159\u00edzen\u00ed do poolu vznik\u00e1 mo\u017enost logick\u00e9ho spojen\u00ed disk\u016f do souvisl\u00e9 oblasti. Takov\u00e9 funkce, jako RAID, komprese dat, deduplikace a organizace odolnosti v\u016f\u010di selh\u00e1n\u00ed zat\u00edm nejsou podporov\u00e1ny, ale jsou pl\u00e1nov\u00e1ny do budoucna. <\/p>\n
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V nov\u00e9 verzi: <\/p>\n
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Byla p\u0159id\u00e1na podpora roz\u0161\u00ed\u0159en\u00ed velikosti fyzick\u00fdch za\u0159\u00edzen\u00ed, kter\u00e1 umo\u017e\u0148uje p\u0159idat do poolu Stratis dal\u0161\u00ed diskov\u00fd prostor, kter\u00fd se stal dostupn\u00fdm na \u00falo\u017en\u00e9m za\u0159\u00edzen\u00ed (nap\u0159\u00edklad p\u0159i roz\u0161i\u0159ov\u00e1n\u00ed RAID pole).\n
Byla p\u0159id\u00e1na p\u0159\u00edkaz «stratis pool extend-data» pro p\u0159id\u00e1n\u00ed dal\u0161\u00edho diskov\u00e9ho prostoru do ur\u010den\u00e9ho \u00falo\u017ei\u0161t\u011b, kter\u00fd se objevil na jednom z za\u0159\u00edzen\u00ed. Pro sledov\u00e1n\u00ed zm\u011bny velikosti za\u0159\u00edzen\u00ed byl do v\u00fdstupu p\u0159\u00edkazu «stratis pool list» p\u0159id\u00e1n speci\u00e1ln\u00ed upozorn\u011bn\u00ed a do p\u0159\u00edkazu «stratis blockdev list» byly p\u0159id\u00e1ny informace o rozd\u00edlech ve velikosti \u00falo\u017ei\u0161t\u011b a za\u0159\u00edzen\u00ed.\n
Bylo vylep\u0161eno p\u0159id\u011blov\u00e1n\u00ed m\u00edsta pro metadata souvisej\u00edc\u00ed s \u00falo\u017en\u00fdmi za\u0159\u00edzen\u00edmi a dynamick\u00e9 p\u0159id\u011blov\u00e1n\u00ed m\u00edsta ve skladu («thin provisioning»). Zm\u011bna umo\u017enila sn\u00ed\u017eit fragmentaci p\u0159i ukl\u00e1d\u00e1n\u00ed metadat.\n
Byla p\u0159epracov\u00e1na kontrola spustiteln\u00fdch soubor\u016f frameworku Clevis, kter\u00fd se pou\u017e\u00edv\u00e1 pro automatick\u00e9 \u0161ifrov\u00e1n\u00ed a de\u0161ifrov\u00e1n\u00ed dat na diskov\u00fdch odd\u00edlech. Kontrola se nyn\u00ed prov\u00e1d\u00ed poka\u017ed\u00e9, kdy\u017e je p\u0159i prov\u00e1d\u011bn\u00ed p\u0159\u00edkazu u\u017eivatele pot\u0159eba p\u0159\u00edstup k Clevis (d\u0159\u00edve byla kontrola provedena pouze p\u0159i spu\u0161t\u011bn\u00ed Stratis), co\u017e \u0159e\u0161\u00ed probl\u00e9my s pou\u017eit\u00edm Clevisu nainstalovan\u00e9ho po spu\u0161t\u011bn\u00ed stratisd. <\/ul>\n
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