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[linux隞也 雿輻 gdiskparted(舀孱PT)隞支脩′蝣,fdisk 芣舀尋BR銝舀孱PT

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頝唾唳摰璅撅
璅銝
潸” 2016-1-2 20:13:26 | 芰閰脖 撣 |摨閬 |梯璅∪
砍敺 IT_man 2017-3-21 22:08 蝺刻摩 / z# H- V1 R0 W4 p
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: http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid
) N' S! M! b" @4 ]% v- J/ {fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html1 s1 r( I* o- e! G
format 憭扳 16TB 蝖祉(>16TB銝摰閬冽迨隞) : http://www.unix-ninja.com/p/Formatting_Ext4_volumes_beyond_the_16TB_limit/http://blog.yourdream.cc/2014/11/19/morethan16t.html
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4 E7 V, }+ x2 L啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:8 b  n4 U1 N) e( x$ }
/dev/sdb1               /home2                  ext4    defaults        1 1
. M/ g$ n, Q6 {" a1 m/ }: n  s7 G3 ]. ?9 \
parted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/# p6 ?- J! r2 \
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fdisk 隞文芣舀 MBR 銝舀 GPT ,閬 GPT蝖祉雿輻 parted 游隞文脩′蝣,隞乩撠隞蝝 parted冽! n7 [. t1 w2 I% E8 ^/ a) O0 p

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9 o1 O3 p4 ~  l% ^0 jparted 臭誑湔亙其銵隞文撠勗莎臭撣詨末函隞歹摰撣貊函隤瘜憒銝嚗
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parted [鋆蝵孫 [隞 [窟]/ Y3 v% E  i% G/ U& ?. P# m1 a( Z
賊賂
- F" H# a& c4 Z* _6 V隞文踝' W1 n; {1 s& E  K+ {( [: G" ^
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
1 V7 a1 X; J$ N# f; M          憿舐內莎print
% e3 A8 q- ]! g2 |3 g          芷文莎rm [partition]0 t. D3 {! F' S/ W
靘憒:7 P& E: t# Z$ v
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寞銝:
& S4 q+ L- x+ s4 _" n1 f0 s5 }(parted) mkpart primary 0 100% (primary皰artition name)
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  \2 }, ~- A/ ~+ y寞鈭:
9 s  R  q( A' c# a( G* VPartition name?  []? 30T_part  @# X0 l" @6 K# A; H" o
File system type?  [ext2]? ext2  (ext4銝霅血)
7 x  R) {5 G( u) [+ b# |Start? 0B or 0%! }3 I8 [2 ~4 `# a& ]: h! [
End? 30TB or 100%
- |' H+ D% Q8 T4 Y& SWarning: You requested a partition from 0.00B to 30.0TB.
8 v) L1 y' M, i1 Q* S# lThe closest location we can manage is 17.4kB to 30.0TB.
1 l. e, J+ ~0 y6 b6 DIs this still acceptable to you?
9 q# y! G) y' P$ X( {# \6 mYes/No? Yes
6 ]8 W2 e, A5 s; `Warning: The resulting partition is not properly aligned for best performance.4 A% x8 y0 q/ V. _1 b( a# @$ Y  V
Ignore/Cancel?
3 {$ K- }  ^6 u% X$ Q) J雿輻牠xt2撠曹銝餈啗郎0 ?& `# |2 w5 G' k
mkfs -t ext4 /dev/sdb1 ===> format: u1 l8 J- T  r. N
ERROR:
9 h' i# v% Y8 ^+ k: I7 Smkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
: Q6 s9 |9 l5 _! e! n        using a blocksize of 4096
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format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
/ r5 T' H4 q+ s9 {& Q/ {& @- w. D& ^/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
' ^  o9 p% ^% I! Y# P" X9 @/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz/ X5 m' H0 z' @; V. [
cd /usr/local/src/e2fsprogs-1.42.7
& c1 s+ F% G! j: w4 l1 Nmkdir build
5 F( l/ t5 e% ]0 @cd build
! Y# e1 ^) J3 I4 v1 R$ k ../configure
3 U: n6 f- ]7 Q8 X  K" ?" o make
! o' O9 s$ V) ~ make install
8 p" m% p1 J+ l1 f* a2 N4 Nmke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
! j" b! d6 {- Y6 B憿舐內銝:
4 S( M* E. F8 g* u$ d' xThis filesystem will be automatically checked every 27 mounts or8 m2 M7 U) b0 [
180 days, whichever comes first.  Use tune2fs -c or -i to override.
, M- s, h2 Y2 V+ C/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)" K" v2 S3 Y3 }( u7 h
/dev/sdb1     /home2     ext4    defaults     1 0(蝚砌詨1:瘥亙隞,蝚砌詨0:蝟餌絞銝甇撣豢fsck銝瑼X)
7 G( \5 L$ V0 U# d# J1 o) K: ^mount /home29 y' j* m- e+ k( k* A
# l6 v  R: j' H; J

) K. Z. k4 n% N# T2 n5 A=======================================================================
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[蝖祉皜祈岫]1.
) |+ a  h2 k+ F. W! JLinux蝖祉撖怠仿摨行葫閰衣隞:
) @% B6 f7 _: W7 r' E% }- R; @#time dd if=/dev/zero of=/home2/test bs=2k count=1000000   //     /home2 痂ount raid0 33TB 蝖祉, 11*3TB銋SCSI蝖祉% p2 q/ J, z, Z' u
1000000+0 records in
/ k* W! N2 C" B% Q6 ~1000000+0 records out! g8 t+ v& Q- T  t" C6 q  y( t
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s3 U5 P+ _4 r( Z# j) u6 G# |, X

# b: g! H. k2 t: _  H: @8 O1 Y+ treal    0m3.590s
) l# I9 p& k$ f. ~& Uuser    0m0.130s
# v) ]  [6 [) M7 b- @sys     0m3.455s0 T+ M6 K1 C' C  c' h, }0 n

+ p% v7 w- h$ {5 w( C
$ r" {' ~6 M0 x* o7 Z0 cLinux蝖祉霈摨行葫閰衣隞:0 A( }! O0 y% @. ~5 b! E& A( N
#time dd if=/home2/test of=/dev/null bs=2k
: c: g  _9 {% v1 G1000000+0 records in! k3 {2 d2 X4 l4 `
1000000+0 records out$ a. }# o' `2 j
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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real    0m0.954s/ L/ K* ?: K1 I* f  ]! |* K. P
user    0m0.083s) M# G: F6 K& Y: }5 s1 |
sys     0m0.868s  {; v; D3 h2 R9 W( U

1 t4 S/ w4 {. [閫嚗7 C& ?, r$ S6 \
time 其閮4 w& K5 z: E6 y' P
dd 其銴鋆踝敺if OF
6 i/ G' N. D+ y! q/ [5 Bif=/dev/zero銝YIO嚗隞亙臭誑其皜祈岫蝝蝎孵神摨;璅 of=/dev/null 銝YIO嚗臭誑其皜祈岫蝝蝎寡摨& e9 H- C9 V. |' A4 L
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.6 k, L# f9 k. U0 S' [1 t1 C* `" T/ C
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦4 ]  m4 \2 S; U: y* K4 `" K
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
2 G- t" b# M6 Y" w5 |望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭
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0 f1 C" r) a" l, |$ n9 \皜祈岫摰閮敺芷 /home2/test
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虫蝔格寞:
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7 X7 t. V8 D0 Q% T+ n. r4 o皜祈岫蝖祉霈摨:
5 r4 P7 ?5 x( o) D! {: \  I5 Bhdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)5 V% v  H; z% t$ @' u
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
, O0 t; i4 r% X
( h0 N2 S6 o6 a/dev/sdb: (敺靘寞LVM摨行)
7 O) ]' O: N, z# k1 C/dev/sdb:
* z7 e* Z+ g; i: N* uTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
* D$ Y( y; \* K皜祈岫蝖祉撖怠仿摨:
5 g, e5 C$ b3 L* h hdparm -t --direct /dev/sdb; g3 r* ^9 o$ u4 H" O
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/dev/sdb: (雿輻禿aid0摨血翰)2 l3 I) X; c8 g: o0 L6 R0 c: Z
Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec
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. N; I, c. |) e9 d% g! s7 O  c/dev/sdb: (敺靘寞LVM摨行)5 m( |3 I7 c" d4 T$ \! y
Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec
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& k6 z: a- _' A' i血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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