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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 & @# M6 w: D# N  H) L

7 H, c  t2 O. Y" m; d : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid
  }: H7 j7 @! pfdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html7 ]! Q  D9 R" w# |2 j
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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" M) N7 k: |' B3 ~$ D; c; i啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:/ F6 H  C, m" D6 U% S8 l
/dev/sdb1               /home2                  ext4    defaults        1 1
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" L% L' s+ R: i8 Q* fparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
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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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% l/ P6 o0 U& hparted 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* F. d8 n8 V) {" J. @7 N

# T) D( Q: t/ qparted [鋆蝵孫 [隞 [窟]
% R2 }* j$ c0 ?) z賊賂* E2 `, ?" b8 ~) x2 X
隞文踝3 ~0 l2 `0 z. M9 o
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯( e* B5 t! r1 _4 \
          憿舐內莎print- ~0 ?/ e* H0 Z. l" C  [
          芷文莎rm [partition]
2 O( f& w) [  t6 [- J靘憒:
$ i9 e% }" E. P3 Y. p5 G% ?7 g/ s

. T* Z+ q- N% ^寞銝:/ {0 c) t: @* `" t' V
(parted) mkpart primary 0 100% (primary皰artition name)4 D! C$ X7 P/ d$ k
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寞鈭:
" z2 [+ ?/ O- V% ^1 U- ePartition name?  []? 30T_part
( P; \/ s! }0 c+ J. YFile system type?  [ext2]? ext2  (ext4銝霅血)8 {! w2 G0 _  `; r# S
Start? 0B or 0%
' ]8 ?% D0 K# {2 c$ ?End? 30TB or 100%
. Y- I& W$ [; [1 N8 @* @- ?Warning: You requested a partition from 0.00B to 30.0TB.$ d  y) P. T2 Q7 W' o
The closest location we can manage is 17.4kB to 30.0TB.  D6 R+ v4 C2 A
Is this still acceptable to you?
" y0 a$ Q  O9 I5 _  L) GYes/No? Yes
/ F- o' P. K. q. X7 QWarning: The resulting partition is not properly aligned for best performance.! Z6 @. g" Z) _1 T( o& o8 G" x
Ignore/Cancel?
( ?5 _' r: o& K2 K. S; J7 s! l5 s3 o雿輻牠xt2撠曹銝餈啗郎( T  d2 K  d6 d/ K" R8 t; [
mkfs -t ext4 /dev/sdb1 ===> format
4 u7 M) E( p* O) U. B' k, vERROR:  p8 Q; M- s/ {; u  N! ^& o! V* E$ ~
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits# f, ^5 `. G8 R/ y
        using a blocksize of 4096
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' W* d0 x* Z; k; S- x2 fformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit2 T) Z" R4 P' d! [
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
; w) |% p) ]7 Q/ c/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
# f( F" J( Y/ Z0 xcd /usr/local/src/e2fsprogs-1.42.70 w$ E  `, l# r/ O. `
mkdir build4 Z6 |/ C/ S8 {) J1 N5 n
cd build  L, l/ F, n; ?1 I' s0 F
../configure
. T0 X5 a8 X% A2 I make# c( L9 @; q) I  ?( f; l0 \$ T3 }
make install
: m4 \5 Z  X3 ]+ tmke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
* F" z- H8 _$ @* r2 F9 A憿舐內銝:6 c" u# s) r0 J3 q5 X7 o; H
This filesystem will be automatically checked every 27 mounts or
* }9 p/ L2 E5 X180 days, whichever comes first.  Use tune2fs -c or -i to override.6 e$ g% x9 t+ B
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
! ]3 L/ h  o! J/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)! x  U1 t0 b3 b2 A! ~1 J; {
mount /home21 u0 |* Y. r& y

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; g# H  _, E/ O' }, a: ]=======================================================================
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[蝖祉皜祈岫]1.) ~9 B6 ?2 _; K- W6 }
Linux蝖祉撖怠仿摨行葫閰衣隞:' ]) _9 I: R+ t; }/ t6 x) \
#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
. ^7 \: q4 E( y' \, B1000000+0 records in
0 S% k4 f9 P* I! Z1000000+0 records out" p' E; ?! {6 Z' F. @7 A/ \4 u
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
  k+ }8 {3 b' R4 k$ z' e5 }
4 g  ~$ p4 k# v# v& Xreal    0m3.590s! n8 R& w1 G7 w$ [) Z: J
user    0m0.130s( |3 h2 j) `+ ?6 L0 f1 Y! }
sys     0m3.455s  l4 @5 U8 B  W8 k' q
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0 f7 f9 @* ?- i8 }( c% X- |8 ^Linux蝖祉霈摨行葫閰衣隞:
. b1 `- M* p  X8 `' v6 ]% U9 }#time dd if=/home2/test of=/dev/null bs=2k
+ Z1 X. D& ?0 f1000000+0 records in1 b+ ]! g5 l. d+ E4 F
1000000+0 records out* r; D6 M9 R/ {/ z) r" W* X3 I
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s0 a7 r* [$ X2 ~- ?/ Z
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real    0m0.954s* u& `# W. }# S! @. }+ r
user    0m0.083s
* ^; Q6 m/ i% f* r0 q, N# Gsys     0m0.868s1 v8 i' G$ G6 D# s- x% C
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閫嚗
" _- P( l7 ]* o% N2 F* Ctime 其閮7 g3 a! g2 }; Z; h; h# Z7 w
dd 其銴鋆踝敺if OF% s  u# A# h$ r
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 X/ B" X( _- e& i7 }3 P' C5 @9 xbs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.+ K* D$ l& ~; p5 f' L0 w4 g
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
; C/ Z' d7 U# Q; c; }3 @' w豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
" p/ G" }' c0 _" u$ q望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭, Z7 K' ?4 \- Z$ z
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皜祈岫摰閮敺芷 /home2/test
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虫蝔格寞:$ t5 ~0 Y* ?! K7 X
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皜祈岫蝖祉霈摨:
  W+ c0 }& ]5 ^" W; E# k9 Xhdparm -t /dev/sdb+ U% u/ t( P/ H: k' d$ Q

! j6 d9 p9 R4 c5 ]1 p5 s8 Z" l/dev/sdb: (雿輻禿aid0摨血翰)7 I/ O2 V! t, s& o* l- I
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
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+ w7 B* K; P5 |7 {: V' X: [  I3 y# N/dev/sdb: (敺靘寞LVM摨行)
9 z5 H/ Y& I" P% @+ k/dev/sdb:
2 s1 l' A3 [7 G9 }0 W" hTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
  B1 p* g, H3 N皜祈岫蝖祉撖怠仿摨:3 h  t2 O! m5 Z  _9 a
hdparm -t --direct /dev/sdb
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' o5 \$ n- M6 D. ?1 R/dev/sdb: (雿輻禿aid0摨血翰)
5 u4 g: j' E, k: {- e% ~% S Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec
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( U: C" V; h5 O& X. R/dev/sdb: (敺靘寞LVM摨行)1 P# @3 `1 ~- a: g) j9 k
Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec" D' g- h6 C6 A

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血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝8 D: [% C% n8 W5 B- W9 C( r

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