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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
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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 ( S( t% K- P& I

$ v- Z9 [" C4 K/ h7 z! ~7 y0 i : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid4 J( Q- r- m9 K/ s$ G  P
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html- o5 g: C) P* N( F1 w2 N5 u7 i
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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' f  p' V/ M$ W( |$ y5 c" U( |& `& e啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
% r% w' S2 k; J& R$ t/dev/sdb1               /home2                  ext4    defaults        1 1
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( m0 J& [- b0 Z+ j- Qparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
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- P" g' P0 w- q: ^' Qfdisk 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# o* [; R. U  L( Y, r% V4 E9 g# i

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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& a* U0 I, o& [8 e( m
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parted [鋆蝵孫 [隞 [窟]9 Y5 [% s" _# U1 ?  [
賊賂
5 E5 K$ T$ k) ^% ~隞文踝8 g; [; q2 O! h+ h) y. D' B
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯- |( [- \% C) S: ~( g" P! D
          憿舐內莎print
1 A! t& |, j& ~7 h          芷文莎rm [partition]
1 |) b& n3 ]1 Z* d, F" \2 x靘憒:
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7 s) ^0 u) f+ r寞銝:! k/ i4 T1 b  H5 _2 _2 p# Q
(parted) mkpart primary 0 100% (primary皰artition name)+ W! u# Y' a9 P" o! s2 w0 Q) z
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寞鈭:9 |9 Y/ B7 W/ K7 Z+ X% A" ]9 G0 w2 E9 z
Partition name?  []? 30T_part
+ U9 w& ?0 ^: X+ P7 ]) eFile system type?  [ext2]? ext2  (ext4銝霅血)- q$ A: j% p/ h6 ?, `  M+ U0 n
Start? 0B or 0%
+ z. m0 N- C4 _# D! GEnd? 30TB or 100%
) l& n2 M9 V8 WWarning: You requested a partition from 0.00B to 30.0TB.# F) \3 i3 x( c2 _+ {1 @
The closest location we can manage is 17.4kB to 30.0TB.
/ F3 z' ]1 r8 l9 @9 s2 r! tIs this still acceptable to you?
+ p7 I/ _9 ^3 y$ VYes/No? Yes
! L5 M; M7 i# _& ?+ `  RWarning: The resulting partition is not properly aligned for best performance.
3 M, u' s- [9 Z/ q# g& mIgnore/Cancel?: n; y) ~' |3 d6 h5 L* r
雿輻牠xt2撠曹銝餈啗郎, [4 d, h$ G, Q6 x
mkfs -t ext4 /dev/sdb1 ===> format
5 T4 k- \; q9 w% _; J7 k  _ERROR:
! }( j# _+ X6 N! W- ]mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits: q6 v% \! M- N$ @% F
        using a blocksize of 4096  z5 K3 P; P5 b8 t3 a* N4 }
SOL:
! a/ a7 Y& _9 @+ d3 Oformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit* v$ \  a% Q6 z' a) G  F) q/ o
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3, N* y0 {& v2 R) H' K4 |
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
, j" u3 x5 e! ]6 S8 Lcd /usr/local/src/e2fsprogs-1.42.7
& i9 u$ y6 f9 U1 J* Imkdir build
6 X/ R) F5 B, T* u; L4 c! C+ Dcd build
) d5 g) X  f; B ../configure
& \9 B6 _% i% c3 G make
+ z* v, f8 W1 g, E- W" x8 ]4 J5 C make install
3 i" l, f7 F0 amke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb12 S: y8 o* W( G1 D+ S5 ?
憿舐內銝:3 z$ a) o3 b  ]9 ?8 M4 {
This filesystem will be automatically checked every 27 mounts or
5 j0 X& j& c: @+ B) _( ]180 days, whichever comes first.  Use tune2fs -c or -i to override.! q; k1 t2 U, W& [+ w8 T2 _
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)- w% n0 v" h3 q8 A0 ?8 y/ `' z1 t
/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)1 O9 h0 ]2 Z- _% L/ q
mount /home2, M. A) X: ^' o, M

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- l( ^8 m" @# [' |5 `3 L2 e=======================================================================- ?9 g/ }- F. n. z" S
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[蝖祉皜祈岫]1.
: I; g) x' @' y4 K0 ~! PLinux蝖祉撖怠仿摨行葫閰衣隞:
! Q" q8 U  |& m; i0 D* n#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 r" \4 |' Q/ i5 E
1000000+0 records in' ~$ W$ Q  k; T3 E% ?
1000000+0 records out. B) }: I; b# ~/ a2 A, M
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s5 i4 F$ l5 Y8 I0 ~& o' p2 M
% ]# `. \( H3 w; h" V% ]' W
real    0m3.590s
6 x7 b8 M# H9 z5 F, {! Duser    0m0.130s
5 ?  z0 J: N8 |7 `( Y3 ?2 j% G1 e+ Qsys     0m3.455s3 C2 X" ]5 j. h) v, J5 E% k2 r
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/ `9 d( W$ k% l' P% F: b$ NLinux蝖祉霈摨行葫閰衣隞:
' N3 W, v5 Y' n1 X9 L+ y* h$ \#time dd if=/home2/test of=/dev/null bs=2k# ]" _! Z  [2 f8 \0 T  X8 N
1000000+0 records in
( P+ U# z2 s. {1 ?( _: M$ C1000000+0 records out
  n2 z: Q; k1 x, W: l$ Y2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s6 v; S4 p4 C/ e% o
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real    0m0.954s/ I* O0 M5 U0 A* u. x
user    0m0.083s- e1 `+ v/ g/ \2 _0 Z
sys     0m0.868s5 J) K+ x$ F9 s( b, m

; q, p% ?8 b  c1 {+ ~% f閫嚗5 ~, P4 x: t4 v+ e7 U
time 其閮4 V2 K8 g  P" r$ {7 q# n& a
dd 其銴鋆踝敺if OF
8 U! T- x5 a- G; Pif=/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' F$ a2 M/ L. V+ i5 a
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
' [5 C  a9 @+ o1 D$ `3 F! V* w鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
8 R3 L* N9 G8 i  S0 G: g$ X豢頞憭扯蝖殷憭甈⊥葫閰血撟喳$ ]. \& m( Y# ?$ x! I2 e
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭8 i8 \2 p9 T( V3 p; S! E) E# K

: p" P- B0 H: v5 o  e# C7 L2 f3 c皜祈岫摰閮敺芷 /home2/test
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8 C9 Z. A4 }9 W: j' G+ S+ a; h' N( M虫蝔格寞:
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% ~% C) t+ t/ \, \; o9 F* \皜祈岫蝖祉霈摨:" f- ?) x+ ^# ~( N4 z) _! y  _
hdparm -t /dev/sdb7 O5 A0 s  ?# T! E( B

- P( _; d* R) ^6 w! E  F6 p/dev/sdb: (雿輻禿aid0摨血翰)
  E/ Y9 _6 l/ [  K3 ~- |+ i Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
# n* v6 |* H4 o0 ^+ W5 X- Q0 m0 x. Q3 H) d2 S
/dev/sdb: (敺靘寞LVM摨行): [7 b$ ^2 R; T/ Q: o. u
/dev/sdb:6 \" W; @2 V. `5 U; U
Timing buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
1 N% Z, W( u4 z# C2 g( i皜祈岫蝖祉撖怠仿摨:- p# j" {1 g1 U$ |+ A
hdparm -t --direct /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)
5 u) c) h+ G8 T& Z Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec: J' K/ k$ p0 o  Z' x

  e' l  ?, Z+ ^# [+ w: B: u/dev/sdb: (敺靘寞LVM摨行)9 n' L5 h7 I! ^- Y& }, t
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
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雿輻券

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