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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
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& K$ ~$ Q6 ^" q8 z- v : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid( J9 Y3 T$ m9 O2 T3 h# x- ]7 D
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html# M2 J9 U, F- ]  X8 C; H4 P
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.html0 b) k5 _2 T( [6 O

( \0 w, B* s/ q& [2 I啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
( b2 ?+ X! M/ w# ~2 F7 a/dev/sdb1               /home2                  ext4    defaults        1 1
% b# {  N4 o- x* Z
$ C# Z9 i, X; Y( qparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/, l  g7 `' O/ e: q
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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
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parted 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]
0 f/ v" O2 J2 ~4 i) E) [: H賊賂
! s1 t( x) T% h# B隞文踝
3 u7 Y3 R. p! X1 Q* R          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
$ r9 }: G# V& j- [$ s          憿舐內莎print  H3 h' \2 w; C5 z$ S+ e( D
          芷文莎rm [partition]3 @- c# k! _# v1 a
靘憒:' N7 b+ \9 ]9 v- O' ^
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寞銝:/ L7 A, t2 i; s5 l% {% }
(parted) mkpart primary 0 100% (primary皰artition name)
% ?" O* N5 b8 Z: t* K+ f$ ]
" q# N- d) ~5 ?5 H1 o  o9 b寞鈭:
1 T; W+ S; G# P" s  B' RPartition name?  []? 30T_part
! |( _' S9 Q" A# y  F1 B8 zFile system type?  [ext2]? ext2  (ext4銝霅血)
; N: r. U1 K" H3 }  SStart? 0B or 0%
5 Z  m- z+ B" c, C* C) IEnd? 30TB or 100%2 j, D0 q9 H+ T
Warning: You requested a partition from 0.00B to 30.0TB.5 ~$ ]' c% p$ p! A, G2 w) C2 \. e
The closest location we can manage is 17.4kB to 30.0TB.# ^- S$ U$ B. c" U9 K) L4 Y1 x7 j
Is this still acceptable to you?8 z& y5 _# _6 U/ b* p( [
Yes/No? Yes
. y4 m$ p3 P7 ?$ w( o5 N* YWarning: The resulting partition is not properly aligned for best performance.
% m+ L8 S# W# M& X* ]  ZIgnore/Cancel?
+ ?5 M1 T1 W3 r7 }. `6 L  {( D雿輻牠xt2撠曹銝餈啗郎
4 H6 T4 r1 X6 {3 R4 _mkfs -t ext4 /dev/sdb1 ===> format7 d9 E1 S; A9 I' t: d
ERROR:3 S4 e" }+ ~1 O' I" s0 U
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits6 K. q; v% W2 @- g- y" F
        using a blocksize of 4096
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format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
% D! G5 r& _( Q$ [/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
3 @0 p4 Q$ _- `! w5 W  `% B- [2 p: G/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
7 E) y3 y- V0 \& B: z* `cd /usr/local/src/e2fsprogs-1.42.7
% S# F: ^8 t9 d) [mkdir build
+ ~1 a8 c0 s1 C# U6 |' fcd build, e" n7 @) }! G. d
../configure
$ }; t9 }6 i: h5 b% B make: q- Q) J' U* N+ N
make install
# |/ q& W$ {, a" `8 xmke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1* R0 C: m7 L. q( |; T6 p5 e
憿舐內銝:! l$ n$ t: K5 c5 }9 g6 _8 L: ]
This filesystem will be automatically checked every 27 mounts or
- y5 e3 V: Y4 n, w180 days, whichever comes first.  Use tune2fs -c or -i to override.  {! C, \. V$ \
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
; {# z& G9 |+ f  O1 {/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)
. B5 O; g( c6 O* C1 o0 ]9 ~mount /home2
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+ a, Q$ O9 ^: N: |
=======================================================================! s; Y, Z" M. R( [

; U9 C; ]/ @' V4 b. k7 U4 Q* E[蝖祉皜祈岫]1.& b- V; z; J2 w4 v4 a. G) r) D  C4 u' g
Linux蝖祉撖怠仿摨行葫閰衣隞:5 C, Q2 p) R' }/ D( ~, d8 W
#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1 L2 V7 u7 y1 ]* b$ F
1000000+0 records in' C4 @- H4 Y/ W8 |# D) A0 |, z
1000000+0 records out+ w  z8 c% ?) ?7 ~2 R6 J' q7 M
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s0 o0 t. @* D+ w+ ?; [
; y0 [/ J1 \6 V$ [
real    0m3.590s4 }$ O  Q' o- J
user    0m0.130s' l3 [2 K5 m) D2 v
sys     0m3.455s
# w) Q% k+ X( K4 u
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Linux蝖祉霈摨行葫閰衣隞:9 u# ?. A! H) R! D
#time dd if=/home2/test of=/dev/null bs=2k1 n  o% w$ G' M( [% h$ F
1000000+0 records in
9 b  ~0 V0 O% G8 ^1 Q' r5 u, {1000000+0 records out
4 q+ @% L% D) E2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
- }* ?2 T( i" f: l4 w0 [9 E+ J1 e) T1 e+ |$ d: Z/ _2 p  f4 }. f" c* v
real    0m0.954s1 z' ]  f8 D  I. ^% B% k
user    0m0.083s0 t5 q2 `: B1 i5 ^% A
sys     0m0.868s$ X+ q3 F+ _% M2 q2 e& Q

' z. ~$ m, j& x$ ^# L( T8 `閫嚗
) \; F- E' |7 [* \time 其閮& I1 v: I& O! O# h
dd 其銴鋆踝敺if OF
- g  j7 P1 M6 |( E% w& `  i* Fif=/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3 h9 V( U! B$ @
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.5 ~8 A7 \: {: g( ?+ \
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
6 K' }  h! U' K) L; [( X豢頞憭扯蝖殷憭甈⊥葫閰血撟喳9 \# ~, z- `* D7 ~
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭
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7 P$ h# u: C) u3 x; w# _皜祈岫摰閮敺芷 /home2/test
; X% E0 {/ c6 M! s2.
3 g4 r/ W2 C$ i虫蝔格寞:
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) n9 a0 E( n. R/ H- D3 ^0 G皜祈岫蝖祉霈摨:% h4 n+ o0 ?4 U5 p9 L6 T5 j
hdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)
% C- a- X) M6 }$ E0 M Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
% M3 j( u& L( a( [9 e
7 i5 y* B& c% Q/dev/sdb: (敺靘寞LVM摨行)
- t) u3 Z  t( y  P1 T& c7 F0 X/dev/sdb:
0 r% `! h" i3 c; N: V1 RTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
$ v7 J6 l: M4 o, _: Y皜祈岫蝖祉撖怠仿摨:
8 [9 Y+ z+ b, U6 u) W hdparm -t --direct /dev/sdb* e1 Z" S+ F7 V4 z# c2 f
0 ^7 J7 v4 I% ?: r
/dev/sdb: (雿輻禿aid0摨血翰); s+ @, [& z3 Q/ H; `
Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec1 x0 Y! z' {5 I: P6 Y8 G+ S' m
$ j% ?2 z( d, q! T8 i" X
/dev/sdb: (敺靘寞LVM摨行)$ t/ Z/ z' r; K, ?# |3 V7 j
Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec/ d. U# Y' i  C4 \

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血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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" b) b9 e0 D; e- |" d0 G8 i

雿輻券

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