{"id":476857,"date":"2023-08-09T09:04:34","date_gmt":"2023-08-09T09:04:34","guid":{"rendered":""},"modified":"2023-09-05T11:13:35","modified_gmt":"2023-09-05T11:13:35","slug":"disk-storage","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/disk-storage\/","title":{"rendered":"L\u01b0u tr\u1eef \u0111\u0129a"},"content":{"rendered":"<p>L\u01b0u tr\u1eef \u0111\u0129a, m\u1ed9t th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n c\u1ee7a c\u00f4ng ngh\u1ec7 m\u00e1y t\u00ednh, \u0111\u00f3ng vai tr\u00f2 l\u00e0 trung t\u00e2m c\u1ee7a h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef v\u00e0 truy xu\u1ea5t d\u1eef li\u1ec7u. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n n\u00e0y \u0111i s\u00e2u v\u00e0o th\u1ebf gi\u1edbi l\u01b0u tr\u1eef \u0111\u0129a, truy t\u00ecm l\u1ecbch s\u1eed c\u1ee7a n\u00f3, gi\u1ea3i th\u00edch ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3 v\u00e0 th\u1ea3o lu\u1eadn v\u1ec1 m\u1ee9c \u0111\u1ed9 li\u00ean quan c\u1ee7a n\u00f3 trong l\u0129nh v\u1ef1c m\u00e1y ch\u1ee7 proxy.<\/p>\n<h2>Ngu\u1ed3n g\u1ed1c v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a l\u01b0u tr\u1eef \u0111\u0129a<\/h2>\n<p>Thi\u1ebft b\u1ecb l\u01b0u tr\u1eef \u0111\u0129a \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 IBM 350 Disk Storage Unit, m\u1ed9t ph\u1ea7n c\u1ee7a m\u00e1y t\u00ednh IBM 305 RAMAC (Ph\u01b0\u01a1ng ph\u00e1p k\u1ebf to\u00e1n v\u00e0 ki\u1ec3m so\u00e1t truy c\u1eadp ng\u1eabu nhi\u00ean) ra m\u1eaft v\u00e0o n\u0103m 1956. IBM 350 c\u00f3 50 \u0111\u0129a c\u1ee9ng 24 inch v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef 5 \u0111\u0129a. tri\u1ec7u k\u00fd t\u1ef1, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi ch\u1ec9 d\u01b0\u1edbi 5 megabyte theo ti\u00eau chu\u1ea9n ng\u00e0y nay.<\/p>\n<p>T\u1eeb nh\u1eefng kh\u1edfi \u0111\u1ea7u khi\u00eam t\u1ed1n n\u00e0y, c\u00f4ng ngh\u1ec7 l\u01b0u tr\u1eef \u0111\u0129a \u0111\u00e3 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng. \u1ed4 \u0111\u0129a c\u1ee9ng (HDD) \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u00e0o nh\u1eefng n\u0103m 1960 th\u1ec3 hi\u1ec7n b\u01b0\u1edbc nh\u1ea3y v\u1ecdt l\u1edbn v\u1ec1 kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef v\u00e0 truy xu\u1ea5t d\u1eef li\u1ec7u. V\u00e0o cu\u1ed1i th\u1ebf k\u1ef7 20, l\u01b0u tr\u1eef \u0111\u0129a \u0111\u00e3 tr\u1ea3i qua m\u1ed9t s\u1ef1 chuy\u1ec3n \u0111\u1ed5i c\u0103n b\u1ea3n v\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a \u1ed4 \u0111\u0129a th\u1ec3 r\u1eafn (SSD), mang l\u1ea1i th\u1eddi gian truy c\u1eadp d\u1eef li\u1ec7u nhanh h\u01a1n, gi\u1ea3m m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 t\u0103ng \u0111\u1ed9 tin c\u1eady.<\/p>\n<h2>S\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a vi\u1ec7c l\u01b0u tr\u1eef \u0111\u0129a<\/h2>\n<p>V\u1ec1 c\u1ed1t l\u00f5i, l\u01b0u tr\u1eef \u0111\u0129a li\u00ean quan \u0111\u1ebfn vi\u1ec7c l\u01b0u tr\u1eef d\u1eef li\u1ec7u tr\u00ean ph\u01b0\u01a1ng ti\u1ec7n l\u01b0u tr\u1eef v\u1eadt l\u00fd, th\u01b0\u1eddng l\u00e0 \u1ed5 \u0111\u0129a c\u1ee9ng (HDD) ho\u1eb7c \u1ed5 \u0111\u0129a th\u1ec3 r\u1eafn (SSD). D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c ghi v\u00e0o v\u00e0 \u0111\u1ecdc t\u1eeb ph\u01b0\u01a1ng ti\u1ec7n l\u01b0u tr\u1eef b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t lo\u1ea1t xung \u0111i\u1ec7n t\u1eeb ho\u1eb7c xung \u0111i\u1ec7n.<\/p>\n<p>Trong \u1ed5 c\u1ee9ng HDD, d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c ghi v\u00e0o m\u1ed9t \u0111\u0129a ho\u1eb7c \u0111\u0129a nh\u1ea1y c\u1ea3m v\u1edbi t\u1eeb t\u00ednh, quay v\u1edbi t\u1ed1c \u0111\u1ed9 cao. M\u1ed9t ph\u1ea7n \u1ee9ng chuy\u1ec3n \u0111\u1ed9ng ghi ho\u1eb7c \u0111\u1ecdc d\u1eef li\u1ec7u tr\u00ean \u0111\u0129a.<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, SSD l\u01b0u tr\u1eef d\u1eef li\u1ec7u b\u1eb1ng b\u1ed9 nh\u1edb flash, m\u1ed9t lo\u1ea1i b\u1ed9 l\u01b0u tr\u1eef c\u1ed1 \u0111\u1ecbnh gi\u00fap l\u01b0u gi\u1eef th\u00f4ng tin ngay c\u1ea3 khi kh\u00f4ng \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n. Thay v\u00ec \u0111\u0129a quay, SSD s\u1eed d\u1ee5ng m\u1ed9t d\u00e3y t\u1ebf b\u00e0o b\u00e1n d\u1eabn \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u.<\/p>\n<h2>Ph\u00e2n t\u00edch b\u1ed9 nh\u1edb \u0111\u0129a: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng<\/h2>\n<p>\u1ed4 c\u1ee9ng ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd t\u1eeb t\u00ednh. \u0110\u1ea7u \u0111\u1ecdc-ghi, n\u1eb1m tr\u00ean m\u1ed9t c\u00e1nh tay di chuy\u1ec3n tr\u00ean b\u1ec1 m\u1eb7t \u0111\u0129a, ghi d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch ph\u00e2n c\u1ef1c c\u00e1c v\u00f9ng c\u1ef1c nh\u1ecf tr\u00ean \u0111\u0129a \u0111\u1ec3 th\u1ec3 hi\u1ec7n d\u1eef li\u1ec7u nh\u1ecb ph\u00e2n (0 v\u00e0 1). \u0110\u1ec3 \u0111\u1ecdc d\u1eef li\u1ec7u, \u0111\u1ea7u s\u1ebd c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c c\u1ef1c t\u1eeb c\u1ee7a t\u1eebng khu v\u1ef1c.<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, SSD ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean l\u00fd t\u00edch \u0111i\u1ec7n t\u1eed. D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef b\u1eb1ng c\u00e1ch c\u1ea5p \u0111i\u1ec7n v\u00e0o m\u1ed9t c\u1ed5ng n\u1ed5i c\u1ee7a \u00f4 nh\u1edb, l\u00e0m thay \u0111\u1ed5i \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a n\u00f3 \u0111\u1ec3 bi\u1ec3u di\u1ec5n d\u1eef li\u1ec7u nh\u1ecb ph\u00e2n.<\/p>\n<h2>Gi\u1ea3i n\u00e9n c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a b\u1ed9 l\u01b0u tr\u1eef \u0111\u0129a<\/h2>\n<p>B\u1ed9 l\u01b0u tr\u1eef tr\u00ean \u0111\u0129a cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn n\u00f3 kh\u00f4ng th\u1ec3 thi\u1ebfu trong \u0111i\u1ec7n to\u00e1n hi\u1ec7n \u0111\u1ea1i:<\/p>\n<ol>\n<li><strong>Kh\u00f4ng l\u01b0u tr\u1eef d\u1ec5 bay h\u01a1i<\/strong>: B\u1ed9 l\u01b0u tr\u1eef tr\u00ean \u0111\u0129a l\u01b0u gi\u1eef th\u00f4ng tin ngay c\u1ea3 khi kh\u00f4ng c\u00f3 ngu\u1ed3n \u0111i\u1ec7n, ph\u00f9 h\u1ee3p cho vi\u1ec7c l\u01b0u tr\u1eef d\u1eef li\u1ec7u l\u00e2u d\u00e0i.<\/li>\n<li><strong>Truy c\u1eadp ng\u1eabu nhi\u00ean<\/strong>: B\u1ed9 l\u01b0u tr\u1eef tr\u00ean \u0111\u0129a cho ph\u00e9p d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy xu\u1ea5t theo b\u1ea5t k\u1ef3 th\u1ee9 t\u1ef1 n\u00e0o, b\u1ea5t k\u1ec3 v\u1ecb tr\u00ed v\u1eadt l\u00fd c\u1ee7a n\u00f3 tr\u00ean ph\u01b0\u01a1ng ti\u1ec7n l\u01b0u tr\u1eef.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef<\/strong>: C\u00e1c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef \u0111\u0129a hi\u1ec7n \u0111\u1ea1i cung c\u1ea5p dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef cao, v\u1edbi \u1ed5 c\u1ee9ng HDD th\u01b0\u1eddng c\u00f3 dung l\u01b0\u1ee3ng nhi\u1ec1u terabyte (TB) v\u00e0 \u1ed5 SSD c\u00f3 dung l\u01b0\u1ee3ng l\u00ean t\u1edbi v\u00e0i TB.<\/li>\n<li><strong>Hi\u1ec7u su\u1ea5t<\/strong>: SSD cung c\u1ea5p t\u1ed1c \u0111\u1ed9 truy c\u1eadp d\u1eef li\u1ec7u v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi HDD do kh\u00f4ng c\u00f3 c\u00e1c th\u00e0nh ph\u1ea7n c\u01a1 h\u1ecdc, d\u1eabn \u0111\u1ebfn \u0111\u1ed9 tr\u1ec5 th\u1ea5p h\u01a1n v\u00e0 th\u1eddi gian kh\u1edfi \u0111\u1ed9ng nhanh h\u01a1n.<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i l\u01b0u tr\u1eef \u0111\u0129a<\/h2>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i \u1ed5 \u0111\u0129a l\u01b0u tr\u1eef<\/th>\n<th>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/th>\n<th>Ph\u01b0\u01a1ng ti\u1ec7n l\u01b0u tr\u1eef<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u1ed4 \u0111\u0129a c\u1ee9ng (HDD)<\/td>\n<td>t\u1eeb t\u00ednh<\/td>\n<td>\u0110\u0129a t\u1eeb (\u0110\u0129a)<\/td>\n<\/tr>\n<tr>\n<td>\u1ed4 \u0111\u0129a th\u1ec3 r\u1eafn (SSD)<\/td>\n<td>\u0110i\u1ec7n t\u00edch<\/td>\n<td>T\u1ebf b\u00e0o b\u00e1n d\u1eabn<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 l\u01b0u tr\u1eef tr\u00ean \u0111\u0129a: Nh\u1eefng th\u00e1ch th\u1ee9c v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n<p>B\u1ed9 l\u01b0u tr\u1eef tr\u00ean \u0111\u0129a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb m\u00e1y t\u00ednh c\u00e1 nh\u00e2n v\u00e0 m\u00e1y ch\u1ee7 \u0111\u1ebfn m\u00e1y \u1ea3nh k\u1ef9 thu\u1eadt s\u1ed1 v\u00e0 m\u00e1y ch\u01a1i game. Tuy nhi\u00ean, n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 kh\u00f4ng c\u00f3 nh\u1eefng th\u00e1ch th\u1ee9c. M\u1ea5t d\u1eef li\u1ec7u, l\u1ed7i \u1ed5 \u0111\u0129a v\u00e0 hi\u1ec7u su\u1ea5t ch\u1eadm l\u00e0 nh\u1eefng v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p khi l\u01b0u tr\u1eef tr\u00ean \u0111\u0129a.<\/p>\n<p>May m\u1eafn thay, c\u00e1c gi\u1ea3i ph\u00e1p nh\u01b0 h\u1ec7 th\u1ed1ng \u0111\u0129a \u0111\u1ed9c l\u1eadp (RAID) d\u1ef1 ph\u00f2ng, sao l\u01b0u d\u1eef li\u1ec7u th\u01b0\u1eddng xuy\u00ean v\u00e0 ch\u1ed1ng ph\u00e2n m\u1ea3nh \u1ed5 \u0111\u0129a c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m thi\u1ec3u nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, vi\u1ec7c s\u1eed d\u1ee5ng SSD c\u0169ng \u0111\u00e3 gi\u00fap gi\u1ea3i quy\u1ebft nhi\u1ec1u v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn hi\u1ec7u su\u1ea5t.<\/p>\n<h2>L\u01b0u tr\u1eef \u0111\u0129a: \u0110\u1eb7c \u0111i\u1ec3m v\u00e0 so s\u00e1nh<\/h2>\n<p>So s\u00e1nh HDD v\u00e0 SSD:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0111\u1eb7c tr\u01b0ng<\/th>\n<th>\u1ed5 c\u1ee9ng<\/th>\n<th>SSD<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>T\u1ed1c \u0111\u1ed9<\/td>\n<td>Ch\u1eadm h\u01a1n<\/td>\n<td>Nhanh h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 b\u1ec1n<\/td>\n<td>Th\u1ea5p h\u01a1n (b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng)<\/td>\n<td>Cao h\u01a1n (kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng)<\/td>\n<\/tr>\n<tr>\n<td>Ti\u1ebfng \u1ed3n<\/td>\n<td>To h\u01a1n (do c\u00e1c b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng)<\/td>\n<td>Y\u00ean t\u0129nh h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>Hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng<\/td>\n<td>K\u00e9m hi\u1ec7u qu\u1ea3<\/td>\n<td>Hi\u1ec7u qu\u1ea3 h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>Gi\u00e1 m\u1ed7i GB<\/td>\n<td>Gi\u00e1 r\u1ebb h\u01a1n<\/td>\n<td>\u0110\u1eaft h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai trong l\u01b0u tr\u1eef \u0111\u0129a<\/h2>\n<p>T\u01b0\u01a1ng lai c\u1ee7a vi\u1ec7c l\u01b0u tr\u1eef tr\u00ean \u0111\u0129a n\u1eb1m \u1edf nh\u1eefng c\u1ea3i ti\u1ebfn li\u00ean t\u1ee5c v\u1ec1 m\u1eadt \u0111\u1ed9 v\u00e0 t\u1ed1c \u0111\u1ed9 l\u01b0u tr\u1eef. Nh\u1eefng ph\u00e1t tri\u1ec3n nh\u01b0 Ghi t\u1eeb t\u00ednh h\u1ed7 tr\u1ee3 nhi\u1ec7t (HAMR) cho \u1ed5 c\u1ee9ng HDD v\u00e0 c\u00f4ng ngh\u1ec7 3D NAND cho SSD h\u1ee9a h\u1eb9n dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef cao h\u01a1n v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n.<\/p>\n<p>Ngo\u00e0i ra, nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u00f4ng ngh\u1ec7 t\u1ed1c \u0111\u1ed9 b\u1ed9 nh\u1edb kh\u00f4ng \u1ed5n \u0111\u1ecbnh (NVMe) d\u1ef1 ki\u1ebfn s\u1ebd n\u00e2ng cao h\u01a1n n\u1eefa t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a SSD.<\/p>\n<h2>L\u01b0u tr\u1eef \u0111\u0129a trong b\u1ed1i c\u1ea3nh m\u00e1y ch\u1ee7 proxy<\/h2>\n<p>Trong l\u0129nh v\u1ef1c m\u00e1y ch\u1ee7 proxy, vi\u1ec7c l\u01b0u tr\u1eef tr\u00ean \u0111\u0129a l\u00e0 kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ed1i v\u1edbi b\u1ed9 nh\u1edb \u0111\u1ec7m \u2013 m\u1ed9t k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 truy xu\u1ea5t d\u1eef li\u1ec7u. M\u00e1y ch\u1ee7 proxy l\u01b0u tr\u1eef c\u00e1c trang web \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u th\u01b0\u1eddng xuy\u00ean v\u00e0 n\u1ed9i dung web kh\u00e1c trong b\u1ed9 l\u01b0u tr\u1eef \u0111\u0129a c\u1ee7a ch\u00fang. Khi kh\u00e1ch h\u00e0ng y\u00eau c\u1ea7u m\u1ed9t trang \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong b\u1ed9 \u0111\u1ec7m, m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 ph\u00e2n ph\u1ed1i trang \u0111\u00f3 tr\u1ef1c ti\u1ebfp t\u1eeb b\u1ed9 l\u01b0u tr\u1eef tr\u00ean \u0111\u0129a c\u1ee7a n\u00f3, c\u1ea3i thi\u1ec7n th\u1eddi gian ph\u1ea3n h\u1ed3i v\u00e0 gi\u1ea3m m\u1ee9c s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 Disk Storage, b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y nh\u1eefng t\u00e0i nguy\u00ean n\u00e0y h\u1eefu \u00edch:<\/p>\n<ol>\n<li><a href=\"https:\/\/computer.howstuffworks.com\/hard-disk.htm\" target=\"_new\" rel=\"noopener nofollow\">HowStuffWorks: \u0110\u0129a c\u1ee9ng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o<\/a><\/li>\n<li><a href=\"https:\/\/www.westerndigital.com\/solutions\/hdd-ssd\" target=\"_new\" rel=\"noopener nofollow\">Western Digital: Gi\u1ea3i th\u00edch v\u1ec1 \u1ed5 c\u1ee9ng v\u00e0 SSD<\/a><\/li>\n<li><a href=\"https:\/\/www.computerhope.com\/issues\/ch001396.htm\" target=\"_new\" rel=\"noopener nofollow\">Hy v\u1ecdng m\u00e1y t\u00ednh: SSD so v\u1edbi HDD<\/a><\/li>\n<li><a href=\"https:\/\/www.backblaze.com\/b2\/hard-drive-test-data.html\" target=\"_new\" rel=\"noopener nofollow\">Backblaze: T\u1ef7 l\u1ec7 l\u1ed7i \u1ed5 c\u1ee9ng<\/a><\/li>\n<li><a href=\"http:\/\/www.datacenterjournal.com\/the-future-of-disk-storage\/\" target=\"_new\" rel=\"noopener nofollow\">T\u1ea1p ch\u00ed Trung t\u00e2m D\u1eef li\u1ec7u: T\u01b0\u01a1ng lai c\u1ee7a L\u01b0u tr\u1eef \u0110\u0129a<\/a><\/li>\n<\/ol>","protected":false},"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476857","wiki","type-wiki","status-publish","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Disk Storage: A Comprehensive Guide<\/mark>","faq_items":[{"question":"What was the first disk storage device and when was it introduced?","answer":"<p>The first disk storage device was the IBM 350 Disk Storage Unit, introduced in 1956 as part of the IBM 305 RAMAC computer.<\/p>"},{"question":"How does disk storage work in a Hard Disk Drive (HDD)?","answer":"<p>In an HDD, data is written onto a magnetically sensitive disk, or platter, which spins at high speed. A moving armature writes or reads the data on the platter.<\/p>"},{"question":"How does disk storage work in a Solid-State Drive (SSD)?","answer":"<p>An SSD stores data using flash memory, a type of non-volatile storage that retains information even when power is not supplied. SSDs use an array of semiconductor cells to store data.<\/p>"},{"question":"What are some of the key features of disk storage?","answer":"<p>Key features of disk storage include non-volatile storage, random access, high storage capacity, and in the case of SSDs, superior performance in terms of speed.<\/p>"},{"question":"What are the different types of disk storage?","answer":"<p>The primary types of disk storage are Hard Disk Drives (HDDs) and Solid-State Drives (SSDs).<\/p>"},{"question":"What challenges are associated with disk storage and how can they be resolved?","answer":"<p>Common challenges with disk storage include data loss, drive failures, and slow performance. These can be mitigated by using RAID systems, regular data backups, disk defragmentation, and adopting SSDs for better performance.<\/p>"},{"question":"How does disk storage play a role in proxy servers?","answer":"<p>In the context of proxy servers, disk storage is used for caching frequently requested web pages and other web content, which allows the proxy server to deliver faster response times and reduce bandwidth usage.<\/p>"},{"question":"What are some future perspectives and technologies related to disk storage?","answer":"<p>Future technologies in disk storage include improvements in storage density and speed, with developments like Heat-Assisted Magnetic Recording (HAMR) for HDDs and 3D NAND technology for SSDs. Advancements in non-volatile memory express (NVMe) technology are also expected to enhance the speed and efficiency of SSDs.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476857\/revisions"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}