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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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& M- _/ ]* e) C! f; m. g : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid# S9 R1 A7 v3 _9 M+ b8 `
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html! v4 X4 h4 F) f( h( t' z6 Q4 [
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 {$ ~0 q, i1 Q; e啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
- F9 }! D8 v  y( l1 _3 p( {/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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* P& |4 w: S& q& _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  f. b7 P  J5 C' m4 j
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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1 [' |7 J  C0 b: u7 h) H) b+ S# p

' t6 l; n' Z% [. G5 J6 C' Rparted [鋆蝵孫 [隞 [窟]
8 }; L1 Y% d! d; @5 u賊賂
5 `; {2 e$ Y  u7 }( h/ Q隞文踝
+ Z  _! {3 T" F2 A  j          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯6 @6 O8 W) C; {$ y/ T; j8 E
          憿舐內莎print
, s, ]6 @8 I$ b, _- K, \          芷文莎rm [partition]
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8 X# @2 g5 G: N寞銝:
. `' x8 Z- h' o- q, C(parted) mkpart primary 0 100% (primary皰artition name)
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7 ?) j. M1 a4 Z8 Q, D9 ?, H  M寞鈭:  ~7 r5 c  f0 y; p; i7 @+ D( p
Partition name?  []? 30T_part
+ K, p+ y1 x& ^7 r3 I4 o$ fFile system type?  [ext2]? ext2  (ext4銝霅血)
/ ]+ ~6 A" E) M1 q. O' q) ^! rStart? 0B or 0%
) o; ?* N! h1 x+ i1 n; aEnd? 30TB or 100%
$ e3 Y% u% ]& X& v# S3 u4 [. sWarning: You requested a partition from 0.00B to 30.0TB.
4 _  h2 E4 E1 S  w$ N; x# _The closest location we can manage is 17.4kB to 30.0TB.+ ?1 S! r+ }; D
Is this still acceptable to you?
( t9 q, g( r  Q) kYes/No? Yes3 d3 R. P* U* T- s3 Y# w. Q
Warning: The resulting partition is not properly aligned for best performance.2 H6 O* `: {' h# q! v
Ignore/Cancel?5 y* f0 \) E- D9 Z) v  M- p
雿輻牠xt2撠曹銝餈啗郎
' [) l8 B1 J# C1 Z) L/ L" zmkfs -t ext4 /dev/sdb1 ===> format) Y5 B6 w( K4 y9 j7 L* }
ERROR:" O, y0 \$ D" K" T( _4 u6 |
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
& X2 ~4 ^6 Y( v+ [% b        using a blocksize of 4096
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format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
5 T7 ?+ v2 D" m$ ^! D# a/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
+ ~8 r$ c( l$ w1 \/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz& S& O/ B% I& X3 j
cd /usr/local/src/e2fsprogs-1.42.7
, M+ j+ q) h" S. Omkdir build
% ?% A' M& [- P, y" Acd build
; |  M! b! L+ T, V& X ../configure
9 H5 D: h( u, O/ I5 p/ m: g make
  G- O2 q: }& `" G3 ` make install4 h: U9 g4 H+ L$ o9 k/ q
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
, Y' X$ }" c2 q& ^9 }憿舐內銝:2 N8 m# F7 H* K. d+ c
This filesystem will be automatically checked every 27 mounts or. @0 m: J$ U* r+ Y
180 days, whichever comes first.  Use tune2fs -c or -i to override." P- `) {$ w& t, x
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)1 Q$ S, m1 l. ?5 K( P
/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)2 J& R7 D2 m  V3 y6 f6 P! [
mount /home2$ n4 G2 y$ a$ J# l$ s+ N
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% s9 m- s  W6 ?=======================================================================# l  h- l2 W# I2 |, B
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[蝖祉皜祈岫]1.
+ f' h) k" Y1 J+ C, H5 {Linux蝖祉撖怠仿摨行葫閰衣隞:
$ P3 s3 k  M1 c  l6 _#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  J& h$ z0 c$ k! _# r" z: m$ m
1000000+0 records in
; d) ~" v2 G8 Z8 ?" _4 m1000000+0 records out
! s* ^. e+ v9 D8 ]  E2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
  A5 c. \) K# U. h
  v5 b' q- e' N6 |real    0m3.590s
: s( d* V# ^& x: K5 [! F$ W/ Tuser    0m0.130s
% ?+ t/ h5 G6 M$ O2 Fsys     0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:
8 q+ w; L  [: x. c  o) s#time dd if=/home2/test of=/dev/null bs=2k+ J. O, Q+ W" l) V, Z- r, }
1000000+0 records in+ j2 ?) y& Y* c; Y" Y# W( p6 m
1000000+0 records out
/ [. h5 I8 {4 O- ^3 q2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
( V1 ^% v8 a; ]7 s0 _4 y9 o1 ]- `6 h+ g: q' j( `7 Q5 Z
real    0m0.954s
0 @3 m5 \8 H9 u9 A/ r  \# ?, u/ @user    0m0.083s' w$ |4 R/ w+ S0 e" k
sys     0m0.868s
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閫嚗, x9 j# @/ }3 J
time 其閮& Q6 m- [- e4 g" n5 a# m
dd 其銴鋆踝敺if OF; |, R& D! ^' T8 L$ S+ M: i  N
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+ i/ D' w. F/ I% a- L
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
4 Y$ z- q' b2 C1 U& ~鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
! Z( z+ [1 b2 o$ Q& @( H豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
" D$ J0 t, r5 Y* q2 G望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭
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皜祈岫摰閮敺芷 /home2/test
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3 s. r, H/ T" C虫蝔格寞:
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皜祈岫蝖祉霈摨:
0 x+ b6 F+ G+ M; M6 C) T. ^2 nhdparm -t /dev/sdb
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) B" ^0 z: t( {3 P8 C; Z- h/dev/sdb: (雿輻禿aid0摨血翰)& a, [+ F! H$ i: C
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
* S2 J5 \+ W8 C1 V5 A! S$ m! a* g+ Z/ @! W! g9 P' w# S
/dev/sdb: (敺靘寞LVM摨行)
+ x  V* p7 H& O# X8 q/dev/sdb:
- K4 S' H: _7 a! e7 O# A9 W8 eTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec8 n  }5 Y) A$ u! r9 ]+ S
皜祈岫蝖祉撖怠仿摨:
0 Y' e; G/ L" ]8 p+ m3 L: G- @7 g; } hdparm -t --direct /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)
% L' ~& H0 Q/ J 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)
! K. c1 ^* P( W2 L) 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; e# B4 g# J  K4 d! D2 Z* I
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