{"id":73492,"date":"2020-03-10T08:41:58","date_gmt":"2020-03-10T05:41:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/podstava-s-nvme-na-linukse"},"modified":"2020-03-10T08:41:58","modified_gmt":"2020-03-10T05:41:58","slug":"podstava-s-nvme-na-linukse","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/podstava-s-nvme-na-linukse","title":{"rendered":"Problema con NVMe su Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Buona giornata.<\/p>\n

Vorrei attirare l'attenzione della comunit\u00e0 su una caratteristica particolare di Linux quando si lavora con pi\u00f9 SSD NVMe all'interno di un sistema. Questo \u00e8 particolarmente rilevante per coloro che amano creare array RAID software utilizzando NVMe.<\/p>\n

Spero che le informazioni fornite qui sotto aiutino a proteggere i vostri dati e a evitare noiose errori.
\n<\/a><\/noindex>
\nTutti noi ci siamo abituati alla seguente logica di Linux nel trattamento dei dispositivi a blocchi:
\nSe un dispositivo \u00e8 chiamato \/dev\/sda, le sue partizioni saranno \/dev\/sda1, \/dev\/sda2, e cos\u00ec via.
\nPer visualizzare gli attributi SMART, usiamo qualcosa come smartctl -a \/dev\/sda, e formattiamo e aggiungiamo le partizioni, come \/dev\/sda1, agli array.<\/p>\n

Siamo tutti abituati all'assioma che \/dev\/sda1 risiede su \/dev\/sda. E, se un giorno SMART ci mostra che \/dev\/sda \u00e8 quasi guasto, proprio \/dev\/sda1 sar\u00e0 quello che scarteremo dall'array RAID per la sostituzione.<\/p>\n

Si scopre che, nel lavoro con i Namespace NVMe, questa regola non vale. Prova:<\/p>\n

nvme list && ( smartctl -a \/dev\/nvme0 && smartctl -a \/dev\/nvme1 && smartctl -a \/dev\/nvme2 ) | grep Serial\nNode             SN                   Model                                    Namespace Usage                      Format           FW Rev  \n---------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------\n\/dev\/nvme0n1     S466NX0K72XX06M      Samsung SSD 970 EVO 500GB                1          96.92  GB \/ 500.11  GB    512   B +  0 B   1B2QEXE7\n\/dev\/nvme1n1     S466NX0K43XX48W      Samsung SSD 970 EVO 500GB                1          91.00  GB \/ 500.11  GB    512   B +  0 B   1B2QEXE7\n\/dev\/nvme2n1     S466NX0K72XX01A      Samsung SSD 970 EVO 500GB                1           0.00   B \/ 500.11  GB    512   B +  0 B   1B2QEXE7\nSerial Number:                      S466NX0K72XX06M\nSerial Number:                      S466NX0K72XX01A\nSerial Number:                      S466NX0K43XX48W\n<\/code><\/pre>\n
\nIl lettore attento noter\u00e0 confrontando i numeri di serie che \/dev\/nvme1n1 si trova in realt\u00e0 su \/dev\/nvme2, e viceversa.<\/p>\n
P.S.<\/p>\n
Ti auguro di non dover mai rimuovere l'ultimo NVMe SSD funzionante dal tuo array RAID.
\n
Fonte: habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
\u0414\u043e\u0431\u0440\u043e\u0433\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u0441\u0443\u0442\u043e\u043a. \u0425\u043e\u0442\u0435\u043b \u043e\u0431\u0440\u0430\u0442\u0438\u0442\u044c \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0430 \u043d\u0430 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u043d\u0443\u044e \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044c Linux \u043f\u0440\u0438 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u043c\u0438 NVMe SSD \u0432 \u043e\u0434\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435. \u041e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u0430\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u043e \u0431\u0443\u0434\u0435\u0442 \u0434\u043b\u044f \u0442\u0435\u0445 \u043a\u0442\u043e \u043b\u044e\u0431\u0438\u0442 \u0434\u0435\u043b\u0430\u0442\u044c \u0438\u0437 NVMe \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0435 RAID \u043c\u0430\u0441\u0441\u0438\u0432\u044b. \u041d\u0430\u0434\u0435\u044e\u0441\u044c, \u0447\u0442\u043e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u043d\u0430\u044f \u043d\u0438\u0436\u0435 \u043f\u043e\u043c\u043e\u0436\u0435\u0442 \u0443\u0431\u0435\u0440\u0435\u0447\u044c \u0432\u0430\u0448\u0438 \u0434\u0430\u043d\u043d\u044b\u0435 \u0438 \u0438\u0437\u0431\u0430\u0432\u0438\u0442 \u043e\u0442 \u0434\u043e\u0441\u0430\u0434\u043d\u044b\u0445 \u043e\u0448\u0438\u0431\u043e\u043a. \u0412\u0441\u0435 \u043c\u044b \u043f\u0440\u0438\u0432\u044b\u043a\u043b\u0438 \u043a \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u043b\u043e\u0433\u0438\u043a\u0435 Linux \u043f\u0440\u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-73492","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Problemi con NVMe su Linux | ProHoster","description":"Buongiorno a tutti. Volevo attirare l'attenzione della comunit\u00e0 su una caratteristica peculiare di Linux quando si lavora con pi\u00f9 SSD NVMe in un unico sistema. Questo \u00e8 particolarmente rilevante per chi ama creare array RAID software con NVMe. Spero che le informazioni fornite qui sotto possano aiutare a proteggere i vostri dati ed evitare fastidiosi errori. Tutti noi siamo abituati alla seguente logica di Linux quando si","canonical_url":"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/podstava-s-nvme-na-linukse","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"it_IT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041f\u043e\u0434\u0441\u0442\u0430\u0432\u0430 \u0441 NVMe \u043d\u0430 \u041b\u0438\u043d\u0443\u043a\u0441\u0435 | ProHoster","og:description":"\u0414\u043e\u0431\u0440\u043e\u0433\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u0441\u0443\u0442\u043e\u043a. \u0425\u043e\u0442\u0435\u043b \u043e\u0431\u0440\u0430\u0442\u0438\u0442\u044c \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0430 \u043d\u0430 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u043d\u0443\u044e \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044c Linux \u043f\u0440\u0438 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u043c\u0438 NVMe SSD \u0432 \u043e\u0434\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435. \u041e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u0430\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u043e \u0431\u0443\u0434\u0435\u0442 \u0434\u043b\u044f \u0442\u0435\u0445 \u043a\u0442\u043e \u043b\u044e\u0431\u0438\u0442 \u0434\u0435\u043b\u0430\u0442\u044c \u0438\u0437 NVMe \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0435 RAID \u043c\u0430\u0441\u0441\u0438\u0432\u044b. \u041d\u0430\u0434\u0435\u044e\u0441\u044c, \u0447\u0442\u043e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u043d\u0430\u044f \u043d\u0438\u0436\u0435 \u043f\u043e\u043c\u043e\u0436\u0435\u0442 \u0443\u0431\u0435\u0440\u0435\u0447\u044c \u0432\u0430\u0448\u0438 \u0434\u0430\u043d\u043d\u044b\u0435 \u0438 \u0438\u0437\u0431\u0430\u0432\u0438\u0442 \u043e\u0442 \u0434\u043e\u0441\u0430\u0434\u043d\u044b\u0445 \u043e\u0448\u0438\u0431\u043e\u043a. \u0412\u0441\u0435 \u043c\u044b \u043f\u0440\u0438\u0432\u044b\u043a\u043b\u0438 \u043a \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u043b\u043e\u0433\u0438\u043a\u0435 Linux \u043f\u0440\u0438","og:url":"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/podstava-s-nvme-na-linukse","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2020-03-10T05:41:58+00:00","article:modified_time":"2020-03-10T05:41:58+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"73492","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-02-28 18:31:41","updated":"2022-10-02 20:28:11"},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/73492","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/comments?post=73492"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/73492\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/media?parent=73492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/categories?post=73492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/tags?post=73492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}