{"id":184270,"date":"2026-11-15T11:45:19","date_gmt":"2026-11-15T09:45:26","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/predstavlen-xraid-s-realizacziej-raid-dlya-xfs"},"modified":"2026-11-15T11:45:30","modified_gmt":"2026-11-15T09:45:30","slug":"xraid-introduced-with-raid-implementation-for-xfs","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/xraid-introduced-with-raid-implementation-for-xfs","title":{"rendered":"Bemutatkozik az XRAID, amely RAID megval\u00f3s\u00edt\u00e1ssal rendelkezik az XFS sz\u00e1m\u00e1ra.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Christoph Hellwig, a maintainer of the DMA, KVM, Slab Allocator subsystems and the PowerPC architecture in the Linux kernel, presented the first public release of XRAID, an implementation of declustered RAID with parity control, integrated into the XFS file system. The project was created to add the ability to use RAID on zoned storage devices, such as SMR (Shingled Magnetic Recording) disks, and to provide a high-performance RAID implementation for maintaining data integrity. In addition to zoned devices, XRAID also supports operation on conventional hard drives and SSDs, demonstrating a significant performance increase compared to mdraid (up to 20 times during write operations).<\/p>\n

XRAID uses declustered parity control to distribute information across drives, similar to dRAID in OpenZFS, where no separate drives are allocated for hot spares, and data, parity information, and free spare space are evenly distributed across all drives. The processes of reading, writing, and recovering from failures involve all available drives, which increases throughput, reduces the load on individual disks, helps avoid noticeable performance drops during failures, and significantly accelerates the array reconstruction process after adding or replacing drives.<\/p>\n

Declustered RAID also simplifies the creation of fault-tolerant arrays with a very large number of disks. During recovery from failures, XRAID dynamically determines the order of rebuilding drives, prioritizing zones with greater loss of redundancy and rebuilding data zones before zones with parity information.<\/p>\n

Az XRAID eredetileg a z\u00f3n\u00e1zott t\u00e1rol\u00f3k haszn\u00e1lat\u00e1nak figyelembev\u00e9tel\u00e9vel fejl\u0151dik, ahol a t\u00e1rol\u00f3hely z\u00f3n\u00e1kra oszlik, amelyek blokkok vagy szektorok csoportjait alkotj\u00e1k. Az ilyen eszk\u00f6z\u00f6kben csak a blokkok teljes csoportj\u00e1nak friss\u00edt\u00e9s\u00e9vel szabad adatokat hozz\u00e1adni. P\u00e9ld\u00e1ul a z\u00f3n\u00e1zott \u00edr\u00e1s alkalmaz\u00e1sa az SMR (Shingled Magnetic Recording) lemezeken t\u00f6rt\u00e9nik, ahol a s\u00e1v sz\u00e9less\u00e9ge kisebb, mint a m\u00e1gneses fej sz\u00e9less\u00e9ge, \u00e9s az \u00edr\u00e1s r\u00e9szleges \u00e1tfed\u00e9ssel t\u00f6rt\u00e9nik a szomsz\u00e9dos s\u00e1vval, azaz b\u00e1rmilyen fel\u00fcl\u00edr\u00e1s az eg\u00e9sz s\u00e1vcsoport \u00fajb\u00f3li \u00edr\u00e1s\u00e1t vonja maga ut\u00e1n. <\/p>\n

A z\u00f3n\u00e1zott eszk\u00f6z\u00f6k t\u00e1mogat\u00e1s\u00e1ra az XRAID az XFS-ben \u00e9s a Linux kernelben megval\u00f3s\u00edtott z\u00f3n\u00e1zott eszk\u00f6z\u00f6khez k\u00e9sz\u00fclt blokkallok\u00e1tort haszn\u00e1lja, amely RT-alrendszert (RealTime subvolume) alkalmaz az adatok \u00e9s metadat\u00e1k k\u00fcl\u00f6n t\u00e1rol\u00e1s\u00e1nak megszervez\u00e9s\u00e9re (a z\u00f3n\u00e1kban, ahol sorozatos \u00edr\u00e1s t\u00f6rt\u00e9nik, csak a f\u00e1jlok tartalm\u00e1t t\u00e1rolj\u00e1k, a f\u00e1jl rendszer metadat\u00e1i pedig \u00e1ltal\u00e1nos z\u00f3n\u00e1kban vagy tov\u00e1bbi SSD-kre ker\u00fclnek). <\/p>\n

Az XRAID-ben a RAID parit\u00e1s ellen\u0151rz\u00e9si mechanizmusai kiz\u00e1r\u00f3lag a f\u00e1jlok tartalm\u00e1ra vonatkoznak, \u00e9s a metadat\u00e1k redundanci\u00e1j\u00e1t a Linux kernelben m\u00e1r megl\u00e9v\u0151 meghajt\u00f3k, p\u00e9ld\u00e1ul az MD RAID t\u00fckr\u00f6z\u00e9s\u00e9nek bevon\u00e1s\u00e1val val\u00f3s\u00edtj\u00e1k meg, ami hat\u00e9konyabb a helyben friss\u00edtett kis objektumok eset\u00e9n. A RAID megval\u00f3s\u00edt\u00e1sa az XFS-be \u00e9p\u00fcl be a z\u00f3n\u00e1zott bemeneti\/kimeneti kezel\u0151kh\u00f6z, amelyek a h\u00e1tt\u00e9r t\u00e1rol\u00f3k fizikai z\u00f3n\u00e1it logikai z\u00f3n\u00e1k form\u00e1j\u00e1ban k\u00e9pviselik, hasonl\u00f3an egy t\u00f6bbl\u00e9pcs\u0151s blokkeszk\u00f6zh\u00f6z.<\/p>\n

Az XRAID munk\u00e1latai m\u00e1sf\u00e9l \u00e9ve zajlanak, \u00e9s b\u00e1r a megval\u00f3s\u00edt\u00e1s m\u00e9g nem k\u00e9sz\u00fclt el az alapkernelbe val\u00f3 integr\u00e1l\u00e1sra, m\u00e1r alkalmas sz\u00e9les k\u00f6r\u0171 tesztel\u00e9sre. A javasolt megval\u00f3s\u00edt\u00e1sban 0-t\u00f3l 2-ig terjed\u0151 parit\u00e1sszintek t\u00e1mogat\u00e1sa \u00e9rhet\u0151 el (a 3 \u00e9s t\u00f6bb szint t\u00e1mogat\u00e1s\u00e1ra a k\u00f3d fejleszt\u00e9se folyamatban van). Az XRAID kezel\u00e9s\u00e9re az xfsprogs eszk\u00f6zk\u00e9szlet\u00e9hez egy \u00faj, 'xraid' nev\u0171 seg\u00e9dprogramot adtak hozz\u00e1, \u00e9s megval\u00f3s\u00edtott\u00e1k az XRAID t\u00e1mogat\u00e1s\u00e1t az mkfs-ben. Ezen k\u00edv\u00fcl a z\u00f3n\u00e1s t\u00e1rol\u00f3k ellen\u0151rz\u00e9s\u00e9re szolg\u00e1l\u00f3 Zonar eszk\u00f6zbe lehet\u0151s\u00e9geket adtak a logikai z\u00f3n\u00e1k fizikai z\u00f3n\u00e1kra val\u00f3 lek\u00e9pez\u00e9s vizualiz\u00e1l\u00e1s\u00e1ra.<\/p>\n

Megjelentek az XRAID teljes\u00edtm\u00e9nytesztjeinek eredm\u00e9nyei mdraid \u00e9s btrfs \u00f6sszehasonl\u00edt\u00e1s\u00e1ban, amelyeket a k\u00e9t WD DC-SN650 SSD meghajt\u00f3b\u00f3l \u00e1ll\u00f3 XRAID t\u00f6mb\u00f6n v\u00e9geztek el metadata (mdraid alap\u00fa t\u00fck\u00f6r) eset\u00e9ben, hat WD DC-HC590 26 TB norm\u00e1l SATA meghajt\u00f3val \u00e9s 6-21 z\u00f3n\u00e1zott WD DC-HC690 30 TB (SMR) meghajt\u00f3val.<\/p>\n

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Az XRAID tesztel\u00e9s\u00e9t norm\u00e1l, z\u00f3n\u00e1zatlan SSD meghajt\u00f3kon is elv\u00e9gezt\u00e9k, egy 4 TiB Samsung PM9D3a metadata-ra \u00e9s \u00f6t 4 TiB Samsung PM9D3a RAID (4 + 1) konfigur\u00e1ci\u00f3val.<\/p>\n

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Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0425\u0435\u043b\u0432\u0438\u0433 (Christoph Hellwig), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c DMA, KVM, Slab Allocator \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b PowerPC \u0432 \u044f\u0434\u0440\u0435 Linux, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u043f\u0435\u0440\u0432\u044b\u0439 \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a XRAID, \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u0435\u043a\u043b\u0430\u0441\u0442\u0435\u0440\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e RAID \u0441 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0435\u043c \u0447\u0451\u0442\u043d\u043e\u0441\u0442\u0438, \u0438\u043d\u0442\u0435\u0433\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0432 \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 XFS. \u041f\u0440\u043e\u0435\u043a\u0442 \u0441\u043e\u0437\u0434\u0430\u043d \u0441 \u0446\u0435\u043b\u044c\u044e \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f RAID \u043d\u0430 \u0437\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a \u0434\u0438\u0441\u043a\u0438 SMR (Shingled Magnetic Recording), \u0438 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":184272,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-184270","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\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\udd47Bemutat\u00e1sra ker\u00fclt az XRAID RAID megval\u00f3s\u00edt\u00e1sa XFS-hez | ProHoster","description":"Christoph Hellwig, a DMA, KVM, Slab Allocator \u00e9s PowerPC architekt\u00far\u00e1k Linux kernelbeli karbantart\u00f3ja, bemutatta az XRAID els\u0151 nyilv\u00e1nos kiad\u00e1s\u00e1t, a deklaszterezett RAID megval\u00f3s\u00edt\u00e1s\u00e1t.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/xraid-introduced-with-raid-implementation-for-xfs","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","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\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d XRAID \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 RAID \u0434\u043b\u044f XFS | ProHoster","og:description":"\u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0425\u0435\u043b\u0432\u0438\u0433 (Christoph Hellwig), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c DMA, KVM, Slab Allocator \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b PowerPC \u0432 \u044f\u0434\u0440\u0435 Linux, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u043f\u0435\u0440\u0432\u044b\u0439 \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a XRAID, \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u0435\u043a\u043b\u0430\u0441\u0442\u0435\u0440\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e RAID \u0441 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