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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 6 ]0 O5 m; J# E9 A6 M

) ?5 E* s5 [7 l6 S2 J) j* ]3 M : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid4 @# E( y9 ^! \, p* P9 D  o% e
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
* P0 h. U7 d$ mformat 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& J( K- g: Z- r+ z( d8 Q5 u
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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:
  u/ ^9 n8 N0 P1 J5 i/dev/sdb1               /home2                  ext4    defaults        1 1# |$ \0 p5 r% f" a* j" M

$ a0 o! k7 T* }0 ?4 k# e) M. Iparted 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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1 V$ r, U4 G& a9 ^( j7 i3 d( t' u" lparted 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 f1 R6 z4 {, x) z1 i( U2 f( Q
賊賂
1 M, D$ Z& N6 f/ H- ]: R: [隞文踝
% ?2 h# S; s/ `0 }) m: ]          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯* e3 p& ]6 J! N  e- r8 G
          憿舐內莎print+ g  a# E9 U" V2 q7 b. I
          芷文莎rm [partition]9 m+ F- i, J& Z/ \7 Q
靘憒:( |* b2 R, \' y' @
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寞銝:0 _# ]. r4 `0 p: H; W! t0 f! t
(parted) mkpart primary 0 100% (primary皰artition name)' U, f7 H& \4 X' [
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寞鈭:
0 x& x) M- p/ v7 C1 f& @Partition name?  []? 30T_part
% u. n- ?0 v  f( Y6 v3 A  I1 rFile system type?  [ext2]? ext2  (ext4銝霅血)
) O- Z+ B) s- t/ K9 {/ p; SStart? 0B or 0%
1 }* T3 i- S& `) e1 n: YEnd? 30TB or 100%
5 K$ U$ d! J. s- y! J* R1 E  @# s2 QWarning: You requested a partition from 0.00B to 30.0TB.% Z, ?  [/ o& T! c/ S
The closest location we can manage is 17.4kB to 30.0TB.5 M5 N# {' F) |4 X- R
Is this still acceptable to you?
7 u3 s3 O7 R& w/ b# b5 aYes/No? Yes6 P( U% d6 X6 k5 y7 l- v
Warning: The resulting partition is not properly aligned for best performance.
8 s+ a) l7 i. t& C' b7 p' JIgnore/Cancel?' o2 L0 f% c$ _$ d/ @. t/ k4 ]3 J
雿輻牠xt2撠曹銝餈啗郎
; l* M' d, P% lmkfs -t ext4 /dev/sdb1 ===> format
: s. m- d3 w& G& I$ K# JERROR:
  R* _8 ?  z. H  |" L. Zmkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
) D& k* D- G' i# M  m        using a blocksize of 4096
% u# B) e) ]- USOL:
% S7 }3 o0 J8 [  }* \- Lformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
- z7 \8 _4 h4 M/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
9 x4 |9 k: e0 c$ ^- b& V# ]. H/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz9 q" N& c1 E* e; O- `& w% L% Q8 c0 @
cd /usr/local/src/e2fsprogs-1.42.7- b& L% q8 D8 }1 k8 _7 I5 E) v
mkdir build
9 d& Y. p8 c  p8 h* |8 F  r0 O) N1 ^- icd build3 a) ^/ |- s2 S; v; Y" T
../configure  d2 G$ H3 d2 P" v
make; y% Y# A" W. ^: H, P9 J
make install
9 r4 m, t- I- S+ pmke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
2 s: p5 b4 ?8 |0 f- T! T; a. L憿舐內銝:* \, @' L- ?" T2 X, k
This filesystem will be automatically checked every 27 mounts or
5 a! E5 C1 T9 ~% k1 T4 Z; s180 days, whichever comes first.  Use tune2fs -c or -i to override.! W7 J+ ^+ L6 p$ x
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E). S' [0 U; R3 B  d2 g: N
/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)
! M1 X& D& P) Mmount /home29 g! C! f7 a8 ~1 N) w

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=======================================================================
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[蝖祉皜祈岫]1.
1 j- E) K3 ^- jLinux蝖祉撖怠仿摨行葫閰衣隞:! t8 F" S' X( n6 h
#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 t1 L- J; E5 _$ E: E8 h* r4 H7 b1000000+0 records in, p0 r  i4 W7 Q; A4 v5 a! Y
1000000+0 records out8 Y$ |1 S% `6 J. T$ k& H: h
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
% R" b) T) h: {  i, z! b+ r. I5 z: v# v% b
real    0m3.590s' R  f) C8 c9 ~4 `7 `
user    0m0.130s8 P4 F/ @( a( L6 L) u
sys     0m3.455s+ Q( Q0 H& u. d2 @. |
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Linux蝖祉霈摨行葫閰衣隞:
; Q9 Z, J" B/ J1 L/ J#time dd if=/home2/test of=/dev/null bs=2k
$ c5 L% p6 V; E7 {1000000+0 records in6 o1 i) m& F. b& q) I* a! ~
1000000+0 records out5 S# J0 X) K3 X% \# |
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s4 {+ V' }+ `8 w5 f

  G0 V% h0 G: N  C0 Wreal    0m0.954s4 W3 K2 j, o- p7 K
user    0m0.083s! I6 T9 x" F# E' D- b1 a
sys     0m0.868s
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閫嚗5 d+ Y5 S3 p7 t. Y, k
time 其閮
: o! z" o  S+ O+ \# Bdd 其銴鋆踝敺if OF
" t6 v" j2 [7 d# Kif=/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7 L5 B9 D& C( A7 C% J& y, Z# P# _
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
/ ^* C6 r6 ]" w% d5 M鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
( a7 c& C/ W( N; o豢頞憭扯蝖殷憭甈⊥葫閰血撟喳2 c2 y, y9 M, d4 `$ O: A) o
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭
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/ c) r, ?! _: u7 C4 {  D# S! k皜祈岫摰閮敺芷 /home2/test* }+ q- W% [% t& T- T6 J7 G! x
2.
# ?  h" M0 {) `- d! w虫蝔格寞:
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: s( Y0 w0 U5 h' d" `1 _2 n皜祈岫蝖祉霈摨:
' J% F, `! m* F3 C- g% }9 g/ |- ]hdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)
$ B5 T; P* q$ Y4 s1 X+ @3 q8 h Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
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6 ?! [' x, C) X% j& E* W/dev/sdb: (敺靘寞LVM摨行)
& h- X4 A3 B- ~9 r2 \7 ?; C/dev/sdb:
4 X- i% T( }; rTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec) \2 r' Q4 {0 [
皜祈岫蝖祉撖怠仿摨:  q3 c$ C2 a. y2 k3 H+ r
hdparm -t --direct /dev/sdb
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& @$ N. w' a. ]. {5 R5 c% x/dev/sdb: (雿輻禿aid0摨血翰)
& |  b' i1 k$ k- k Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec
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. P. x0 ]7 s4 z9 m/dev/sdb: (敺靘寞LVM摨行)3 c) G; k, A" a) X% E: @6 w. B) C
Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec
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1 ~3 n3 a3 z8 ~( H! D0 C$ L血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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