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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 |甇摨閬 |梯璅∪
砍敺 IT_man 2017-3-21 22:08 蝺刻摩 0 E# u0 g& a) B; P9 _7 u2 k1 m

& `7 m# g# d% }3 d% S4 c : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid
! i# y0 }" z2 J  q" v7 ffdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html* r2 o1 z, @; ]( e, ~
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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% h, e; C  e5 R1 o* w6 d# C啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:9 {+ `: L+ J6 Y+ O' @4 F; b( S
/dev/sdb1               /home2                  ext4    defaults        1 1
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parted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
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7 n/ U2 {' `. s+ Ifdisk 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" ]3 H/ r$ t9 H: a

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1 A6 s! `& t- [0 x4 H- Vparted 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]
2 y3 L4 C! h5 p賊賂
4 U$ y5 q( H) ?: b隞文踝
  z7 v5 o# R' y6 p) c: N% g- c* K          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯# v% M3 g5 v4 x- [
          憿舐內莎print' \5 ~' o" [9 b) u
          芷文莎rm [partition]! E9 C! Y- m8 i( N0 r  |  p
靘憒:
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* [: _8 m' z" p+ G4 q7 X$ r+ K/ I寞銝:
, h0 A, \' G- y/ U  z% Y(parted) mkpart primary 0 100% (primary皰artition name)7 D! a6 C+ Y5 x* V

6 t( |7 \- y' d$ t# d$ I. y+ u4 T寞鈭:
9 f) K5 e/ ^2 _- W$ o' X9 ^Partition name?  []? 30T_part% a7 Y! L; c: `( c, r7 M
File system type?  [ext2]? ext2  (ext4銝霅血)
2 p4 g' u- [. p+ f. ]* ~, zStart? 0B or 0%4 V5 k) A) G8 N% w& [+ A
End? 30TB or 100%
' r- ?" ~3 d% a* FWarning: You requested a partition from 0.00B to 30.0TB.' ?# ?# L; z5 T6 c9 m" u
The closest location we can manage is 17.4kB to 30.0TB.
6 }: m) X: o/ W2 D% vIs this still acceptable to you?
+ @+ U, k9 ^4 D. UYes/No? Yes# z' q8 M9 g$ h; p" d) n. ]
Warning: The resulting partition is not properly aligned for best performance.
( i5 y' ]1 g5 j2 ^Ignore/Cancel?9 P  V- O6 C% c, H2 x9 Y
雿輻牠xt2撠曹銝餈啗郎
, d1 s" F$ k' o% Q# J0 Gmkfs -t ext4 /dev/sdb1 ===> format
# I- N. H) O" ^ERROR:
4 B4 w: ]/ e3 T+ o4 Xmkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
5 b0 s2 P% M" f7 Q8 H) L9 P        using a blocksize of 4096
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$ x5 _. P! x* a$ m% Uformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
. m& O. @7 s) P/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3/ ?4 m. }6 X$ R! C3 e2 j1 Y
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
5 n) i" D+ j7 G: O( ]/ Ycd /usr/local/src/e2fsprogs-1.42.7
0 @  t$ ]/ Y- ^; k! n; x2 wmkdir build' N, d$ N4 ~. v; L' x
cd build/ g; B& Y1 C* T$ p8 R2 h8 N5 Q  F! G* `
../configure
7 ^# @7 i: N7 ` make8 b/ h/ [; W% e" I1 j% i! h
make install8 S4 z1 G- x. ^5 {, {
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
" a, _1 L9 o4 D: H4 ?+ S0 T6 R7 [憿舐內銝:
( H7 v" r, f, Z( WThis filesystem will be automatically checked every 27 mounts or/ q6 u  n6 E6 b+ N
180 days, whichever comes first.  Use tune2fs -c or -i to override.8 s) o+ I7 ~( r# u& {, s' i$ t
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
* g: y' P$ M# y/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)' }- z- q, }3 S7 A+ `& [
mount /home2% X! x* r: a( S, \" b
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=======================================================================
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/ p$ O5 G& N" O& X3 }$ Z+ P[蝖祉皜祈岫]1.+ V; m5 j7 o7 D) z0 n( A
Linux蝖祉撖怠仿摨行葫閰衣隞:$ v! g2 z) o6 M7 P" b: g6 y
#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
9 a) Z3 p! h2 R+ ~* \, m6 C/ c) K1000000+0 records in
. K8 Y4 i8 K/ y! I  h1000000+0 records out7 m& n8 C0 M4 K9 r0 o5 r
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s' U- @  I! u$ i# B9 c
  b6 A8 y3 U- l% q% a5 g
real    0m3.590s5 {  [8 a. X4 f* U0 p; B! N
user    0m0.130s0 t! ?& Y$ M' F6 B. B# L1 D4 B
sys     0m3.455s' a& d3 a! e: ]
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% A+ `2 s! c$ W8 S* s0 w* t+ }Linux蝖祉霈摨行葫閰衣隞:- ~3 G/ D4 f) e' \/ k
#time dd if=/home2/test of=/dev/null bs=2k
2 X5 H/ U0 Z5 ]4 D( p. F" p1000000+0 records in
1 @; G& z  Y. U" {  L1000000+0 records out% z3 ^" ~2 H) n0 y$ Z) Q
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s* h3 r. [8 Z1 k9 h0 V' k( D0 Y9 z

3 v2 R1 }# P, p8 i2 a) rreal    0m0.954s
2 v! |6 J3 c  B' juser    0m0.083s* }. a6 A0 F) |% P! v; {
sys     0m0.868s$ P7 F8 r1 U$ d# _' s

% _! {- z" D8 f5 i閫嚗; e0 B; h; X3 W3 m$ A6 P% n
time 其閮
0 }- x! G3 ^) r5 I# N1 [: ~dd 其銴鋆踝敺if OF
- K! v) S; c: W, lif=/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
4 S. F3 q6 ^9 P; q& p- ^5 [# ubs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批." e4 G1 r- Y% `! K. f  F- v! N
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦- N1 ?( e! @2 W7 E. i
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳1 j# A) X1 W. s* ]3 y; N) C" M6 C! i
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭7 K1 e0 g) I3 ~: k3 b

- O/ Z' N) ?& W  e# k皜祈岫摰閮敺芷 /home2/test
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虫蝔格寞:
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) C2 w* f; U/ ^5 f皜祈岫蝖祉霈摨:/ J, W% s, }2 ~$ E
hdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰): S7 A/ u& t2 t" Q
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec7 T0 X$ R9 O2 u& A+ H. g$ d

# A. J9 G: o* W3 F" q& }/dev/sdb: (敺靘寞LVM摨行)) d) g9 W8 V( K) R( F
/dev/sdb:5 }* h- F, l2 c+ U4 R9 G+ u
Timing buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
0 C: Z, `6 A! X1 s) ]  ?皜祈岫蝖祉撖怠仿摨:
' ?3 q0 C5 S8 C8 r/ c5 ^) Z' S hdparm -t --direct /dev/sdb* g+ Q2 a7 |3 b+ O  G
% i1 ?( a0 b* u1 a4 m. l, D- y
/dev/sdb: (雿輻禿aid0摨血翰)
4 N& I" ~1 S6 D- `4 P, h: e; a" K Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec+ U! l, }( q6 k" y5 r7 X. b

  _2 |7 O% V) L3 }/dev/sdb: (敺靘寞LVM摨行)
% U2 Q% z8 X# t# u; [. F- W Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec
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血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝9 E1 B4 C2 C; K' M( t/ m% `

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