Ch?o b?n ! ? ki?n c?a HTH l? r?t ch? l?!
Tuy v?y, t?i c?ng m?o mu?i ?? c?p r? h?n v?n ?? backup nh?t l? tr?n c?c m?y ch? Ubuntu (hay Linux) n?i chung. Nh?n chung m?c ??ch c?a vi?c backup/sao l?u l? gi?p cho h? th?ng c? th? kh?i ph?c l?i tr?ng th?i tr??c khi g?p s? c? nhanh nh?t. Th?i gian ph?c h?i l?i h? th?ng nhanh t?i ??u c?ng th? hi?n c?ng t?c sao l?u t?t t?i ??. B?n sao l?u t?t, b?n s? c? d? li?u, tham s? h? th?ng... ?? kh?i ph?c l? m?y ch? c? h?ng h?c, m?t ?i?n hay g?p s? c? b?t th??ng. Nh? v?y, c? c?c lo?i d? li?u sau b?n c?n k?ch b?n sao l?u: 1. D? li?u h? th?ng: l? c?c t?p c?u h?nh h? th?ng, tham s? h? th?ng, t?n m?y ch?, thi?t l?p h? th?ng cho m?y ch? l?m vi?c t?t ??p ?ng y?u c?u c?a b?n. V? d?: ??a ch? m?y ch?, t?n m?y ch?, s? l??ng website m?y ch? ph?c v?, th? m?c ch?a d? li?u... 2. D? li?u (c?a ng??i s? d?ng/t? ch?c): ??y l? c?c d? li?u (data) NSD hay t? ch?c ??a l?n m?y ch?. V? d?: trang html, CSDL... 3. Nh?t k? v?n h?nh h? th?ng (logging): c?i n?y gi?ng nh? cu?n s? nh?t k? h?i tr?nh c?a ng??i thuy?n tr??ng ghi ch?p t? m? l?i t?t c? nh?ng ?i?u ?? x?y ra v?i h? th?ng. Kh?ng ph?n bi?t l? s? ki?n t?t/x?u m? ??n gi?n l? ghi l?i th?c t? (fact) l? c?i g? ?? x?y ra? x?y ra v?o l?c n?o? V? d?: v?i website l? ?? c? y?u c?u ph?c v? t? ??a ch? IP n?o? h? v?o bao nhi?u l?n? v?o website c?a b?n v?o l?c m?y gi?... T??ng ?ng v?i ba lo?i d? li?u tr?n, ch?ng ta c?ng c? nh?ng chi?n l??c sao l?u kh?c nhau v? c?ng c? t??ng ?ng ?? gi?p b?n sao l?u ch?ng m?t c?ch hi?u qu? nh?t. T?m l?i, c?ng c? ch?a ph?i l? ?i?u quan tr?ng nh?t ??i v?i b?n, m? ?i?u quan tr?ng l? b?n c?n l?m r? b?n c?n sao l?u th?ng tin (d? li?u g?)? m?c ?? quan tr?ng c?a d? li?u ?? ??i v?i b?n ra sao? P/S: v? ??ng qu?n tham kh?o c?c g?i ? r?t ch? l? c?a HTH nh?. Ch?c b?n th?nh c?ng. On Thu, 2009-01-15 at 10:23 +0700, chairuou wrote: > L? Anh S?n wrote: > > Em ?? c?i 1 con webserver, dns server > > Nh?ng e ch?a bi?t c?ch b?o tr? n? nh? th? n?o! > > Ai c? kinh nghi?m h??ng d?n em v?i! > > Bao l?u th? kh?i ??ng l?i m?t l?n, c?ch th?c backup nh? th? n?o? > > > > > ;) T?i sao c?n kh?i ??ng l?i ? > V? ph?n "c?ch th?c backup nh? th? n?o" th? b?n c? th? t? tr? l?i b?ng > c?ch tr? l?i c?u h?i: > - v?i webserver th? c?n l?u l?i nh?ng g? ?? trong tr??ng h?p m?y ch? > h?ng c? th? kh?i ph?c l?i d?ch v? nhanh nh?t > v?i g?i ?: config, web pages (static, dynamic), database > - c?ch th?c backup th? c? nhi?u, backup th? c?ng, backup b?ng script t? > vi?t v? ch?y v?i cron, backup to?n b? system v?i c?c tool nh? backuppc... > Ngo?i ra vi?c maintenance m?t m?y ch? theo ??ng ngh?a c?ng kh?ng h? ??n > gi?n m?c d? kh?ng ph?i l? vi?c kh?, kinh nghi?m c?a t?i l?: ghi l?i m?i > th? b?n l?m v?i c?i m?y ch? ??, t? qu? tr?nh c?i ??t OS, drivers, config > cho c?c thi?t b?, config network. M?i thay ??i n?y c?n ???c l?u tr? l?i > theo tr?nh t? th?i gian. Th?m ch? c?ch c?i b??i nh?t l? khi ch?nh s?a > config, ghi ch? l?i b?ng comment ngay trong config file. Tuy nhi?n t?t > nh?t l? n?n ghi ch?p l?i c?ng chi ti?t c?ng t?t. > HTH, > > _______________________________________________ > POST RULES : http://wiki.hanoilug.org/hanoilug:mailing_list_guidelines > _______________________________________________ > HanoiLUG mailing lists: http://lists.hanoilug.org/ > HanoiLUG wiki: http://wiki.hanoilug.org/ > HanoiLUG blog: http://blog.hanoilug.org/ -- Ma Hoang Hai, CEO, V.SENA Building 35, Dien Bien Phu st., Tel: (84-4) - 37 347 344 Fax: (84-4) - 37 347 344 Mobile: 0913.237986 Email: haimh.oss at gmail.com or vsena.jsc at gmail.com Website: http://www.vsena.vn
