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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 1 z  N/ V. d3 {7 H; Z8 e4 b9 E
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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
- k% f5 o2 s% @fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
+ u5 Q4 q5 a; t9 ?  z% e0 b# {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& B- g4 p7 H. t; E5 l) \3 B7 l0 t
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啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:* u8 W4 D( R6 f1 Y. M
/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/+ Z- {3 j, s6 s+ I, s2 m4 e
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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2 g) m. Y  S+ H  b

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7 d+ h" p: c; B7 ?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5 F1 l! l0 ^) ?, T$ c
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parted [鋆蝵孫 [隞 [窟]  P4 J% `/ F( A( [7 g( _+ V- I
賊賂" @, F' w3 H  |, u& m0 ~
隞文踝: b2 Z" z% Q7 v0 Y8 L. S3 ~" @
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯% i+ d6 H: T9 l9 r. P& Y
          憿舐內莎print
5 a% W1 _8 N1 C          芷文莎rm [partition]
2 m; G( l' i" V靘憒:( u+ s+ v7 x9 v- V" E( l; K

; U" D* b1 u( f* g, ~- ~2 C寞銝:% q+ \: ^1 i5 ^0 E1 g( n/ w+ G
(parted) mkpart primary 0 100% (primary皰artition name), G, e% L' I1 G. i

# D: j5 t! G" u8 i; _9 s! K3 A寞鈭:2 l: D) k/ v* T7 A' R
Partition name?  []? 30T_part
! I# o! ~! b0 w0 u. mFile system type?  [ext2]? ext2  (ext4銝霅血)
+ B7 g# n+ I% v; v5 qStart? 0B or 0%
  W# s9 o2 q; Z% jEnd? 30TB or 100%& h1 D$ Z" q' y2 t
Warning: You requested a partition from 0.00B to 30.0TB.( `+ s, Q% a/ L5 T
The closest location we can manage is 17.4kB to 30.0TB.: i. U' t' X3 G2 E* o2 K
Is this still acceptable to you?7 U7 {, ?/ v) t, ?4 H# `4 n
Yes/No? Yes4 @* ?' W6 v3 B) |
Warning: The resulting partition is not properly aligned for best performance.
. P* B9 h) V! X. nIgnore/Cancel?, B5 P7 H3 O$ T( M8 _7 c# u
雿輻牠xt2撠曹銝餈啗郎- y9 D5 O* }. ~  t  P3 ]- P
mkfs -t ext4 /dev/sdb1 ===> format% g2 c  Q+ o* z, B4 o0 J' {
ERROR:
: K9 r/ F% X3 Y# d/ T, c& |( s  R5 xmkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
/ |0 `( u6 C) K% O        using a blocksize of 4096" M" U4 M" p/ |9 K
SOL: $ l2 l3 c  P! o
format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
6 s' d" J  d0 i- f3 I/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3- P9 N5 k4 ^& _6 z( |" `
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz$ ~6 G! J( l. q1 Z" C. y1 Z& B9 V
cd /usr/local/src/e2fsprogs-1.42.7
* b- W& u- o3 umkdir build+ S  O% B" `% c! G& \7 g6 h
cd build; s0 j: b: h9 I' h2 `% `' x( M
../configure
4 j7 v7 h1 B& }4 I make3 e8 Z+ f  l4 y$ K
make install
$ G* s( v" r* n1 x6 D4 imke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
8 T6 p& C  z1 N& k7 A3 H憿舐內銝:" z% k2 ~. R- E! J1 h  ]
This filesystem will be automatically checked every 27 mounts or
7 u4 n( d/ ^8 y2 S9 d5 T180 days, whichever comes first.  Use tune2fs -c or -i to override.4 ?6 G9 K+ u1 P$ ]9 }
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E). \  ?! X; b' r
/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)
% F# v$ ^% I( N; qmount /home2
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4 \! I0 M) Z3 ~. F=======================================================================
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[蝖祉皜祈岫]1.2 n% W5 p& `3 _, d& w( _/ b
Linux蝖祉撖怠仿摨行葫閰衣隞:& a. t( m- B2 `0 ^+ e, e
#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( ?- v  W- N8 R9 H/ v6 F
1000000+0 records in
+ b4 Z' n/ ~" T, p1000000+0 records out4 ~" M4 [! s% a4 W4 ~; a+ l' ^- l
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s5 [  Z0 c9 R8 R8 f
0 f7 \# t/ c/ }$ C& k1 r
real    0m3.590s# a9 |* b1 B" g9 H+ T" P
user    0m0.130s9 ?# @: Z9 e3 M' |) k8 q% }$ i
sys     0m3.455s
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6 p" e+ Q' g4 ]1 Q: vLinux蝖祉霈摨行葫閰衣隞:
) b: R8 ~4 |  {% g#time dd if=/home2/test of=/dev/null bs=2k
' _) m0 Z) e8 S9 F) ^1000000+0 records in
; X" y* h+ I. _2 i1000000+0 records out9 A1 T# |% Z; W- a& q
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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  E) |+ P- B" _/ nreal    0m0.954s6 i, M; i7 J! Y1 N2 x, \1 C2 I
user    0m0.083s
$ @8 P( ^" {; I0 \8 U! f! P  ssys     0m0.868s
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& w. b# j0 h/ D, d( r/ A  f閫嚗( x/ w/ U0 [) T9 v
time 其閮
$ n7 }$ q6 [. m+ X. Q! _dd 其銴鋆踝敺if OF0 k" B2 }. X% ?& f& ~
if=/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
5 T8 z8 ]( s5 a4 r# i" ]& ~bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
/ |1 [% S& ?1 S  R* |鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
+ H' b' O: s5 P9 K  [豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
: @3 ]+ x- ]# F5 c) w望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭; J: q/ P( E2 z) }1 @. s6 m
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皜祈岫摰閮敺芷 /home2/test) c+ w) i9 [" n
2.
. B  @% s. q7 K4 F虫蝔格寞:
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: b. N% d- x1 ]5 l. ]7 q* }皜祈岫蝖祉霈摨:
( a) I# i# h6 I( k, k( uhdparm -t /dev/sdb2 l6 {4 o# E; R% C2 I: K
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/dev/sdb: (雿輻禿aid0摨血翰)* t! x/ a- ^3 n3 x. u! X# @
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec2 i+ p4 p* w5 q
, b' o+ x2 G! o9 @8 [' J
/dev/sdb: (敺靘寞LVM摨行)
6 r' ~% c. W3 u. w  X/dev/sdb:5 L! n! i2 z9 O+ b( b4 E
Timing buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec! |( K  P5 I/ S: s
皜祈岫蝖祉撖怠仿摨:
3 [! J& w/ T8 B* T hdparm -t --direct /dev/sdb) r; e: j5 M4 j3 C# P
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/dev/sdb: (雿輻禿aid0摨血翰)
! I  i' m  z; x8 n* C$ H Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec
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/dev/sdb: (敺靘寞LVM摨行)% C$ f" O- Q! N, h+ Q7 G: n
Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec3 A- b) }1 _# S

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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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