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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 V! x% l3 C4 {8 L2 Q: j
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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. j& A. G) h  ^# F& n
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
; j3 ?( c9 }, M! ?+ T: W9 y; Kformat 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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( J& s/ c% ^" z: a/ H  o! `$ Y- z啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:$ L/ l7 H( F' b  O/ O
/dev/sdb1               /home2                  ext4    defaults        1 1
2 ^( {1 c* g4 ]3 X: D% F8 \
9 e; O+ h1 O. a5 L- Wparted 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0 ?$ D; l/ `" r) [( z" }. Z
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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
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' n  d+ e9 ]) z( @4 h- ^3 Wparted [鋆蝵孫 [隞 [窟]8 a0 \% A  B% i5 Y
賊賂( h! j2 u. `6 l- P6 F9 s
隞文踝1 b# e7 F& T  ]; E6 L/ e
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯3 O- o4 g9 E" Y- m% \
          憿舐內莎print
7 m9 u( N- h7 p/ U0 j          芷文莎rm [partition]
( p3 E3 {7 ~+ U. H靘憒:" g) C/ J# L5 e

! H* o2 ~' H- k; q- f" @$ l& j: r寞銝:& }+ M6 [$ {2 F3 r5 `; q. h" u
(parted) mkpart primary 0 100% (primary皰artition name)
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$ k- Q9 [/ K" b/ D: U# d( X1 f寞鈭:
4 C6 t9 V+ z: |! D9 b3 DPartition name?  []? 30T_part- x  V3 \5 x9 o3 j) ~
File system type?  [ext2]? ext2  (ext4銝霅血)
# ?, \3 t" c: n2 p; dStart? 0B or 0%. k' s$ o3 t" a/ u7 w$ L0 Y
End? 30TB or 100%. @7 M: L; v/ _3 z5 j$ j
Warning: You requested a partition from 0.00B to 30.0TB.
( ?6 \4 d1 ~& IThe closest location we can manage is 17.4kB to 30.0TB.
. e8 [! o' ^; o7 o+ |, ~; {$ U% hIs this still acceptable to you?
$ y9 c, D3 B4 ^. M& S1 \, bYes/No? Yes( s& U( J& j8 J/ v
Warning: The resulting partition is not properly aligned for best performance.7 h% U& C: C/ Y4 }/ \9 N- `  K
Ignore/Cancel?
# K. Y1 Z, \6 {雿輻牠xt2撠曹銝餈啗郎
, X' |6 B. i3 k( ?7 hmkfs -t ext4 /dev/sdb1 ===> format
& E( s! N2 X; m8 j5 k0 ~  p; sERROR:" m1 O( r7 u; ?- l( Y' D9 [
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits2 k! G" Z  ^. C+ y4 c7 h" m3 Y
        using a blocksize of 4096
$ z% I3 J" T- W; DSOL:
6 m+ o, S/ n$ A+ [4 A4 F  rformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
6 N, J. k1 w' G' G/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3+ i- z& ]0 o; K/ A
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz* D+ g# A1 ]- {8 [4 _- s; Z; u' I
cd /usr/local/src/e2fsprogs-1.42.70 V5 R( v4 H- v& J5 o
mkdir build4 h7 ^1 Q8 t' N: n
cd build% C3 k1 g4 D3 p
../configure, a2 E5 \, R" |* [. G4 ~# e
make6 j( V! ^( b9 v( L) E
make install
+ N8 i: ^/ O3 K" I$ v& s4 lmke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1: @) i6 D/ T. u0 j9 Y( p
憿舐內銝:
% m4 r# X; }7 |! t9 _This filesystem will be automatically checked every 27 mounts or& m6 w" G6 K) n8 I$ L+ t
180 days, whichever comes first.  Use tune2fs -c or -i to override.4 z2 O, ?) @! D: X) o! l
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)' D/ ?  ?6 e' p9 d( F
/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)
3 X% F7 x" H, o( P9 Imount /home2) f. C- W9 J  ^
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7 D7 P; m8 {2 A% i6 b" ]. s7 }=======================================================================
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[蝖祉皜祈岫]1.0 V1 c8 U  o, h3 d, n; I% r
Linux蝖祉撖怠仿摨行葫閰衣隞:. R- f' H4 b- R( d" g- W8 q8 j
#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, N# \' D! L5 P) c
1000000+0 records in
, ]3 s, G! T' M1000000+0 records out. @' h* @" Q( k* W( {- E
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s* _* D4 C: V1 L: j, @6 N; D
+ Z" i4 [# u5 p0 y) B( x% w
real    0m3.590s6 w9 N( W5 c9 B5 S. f7 a
user    0m0.130s8 e/ M4 M3 Q4 c1 s7 o, S  t
sys     0m3.455s5 j' e" h) \( g3 b4 P
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, b- q& I* e& l4 b1 X/ t' c% }" aLinux蝖祉霈摨行葫閰衣隞:) A7 R2 i, k: E: X3 Z
#time dd if=/home2/test of=/dev/null bs=2k4 W7 ^5 a$ C2 v/ v7 B+ f- u, e
1000000+0 records in7 C- ^! j1 j) n
1000000+0 records out0 g+ Z1 Y! t& j8 ]
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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, `: l. i+ i- z$ l! q5 ereal    0m0.954s  q. T/ B; o- P1 W6 t& S- {( ]0 m
user    0m0.083s& P, Q" Y+ b' B2 Z" O# R% i' u
sys     0m0.868s& z! ], z2 l5 _7 U' P
  @" x) k! e  \
閫嚗  q6 I9 y; ~3 M, V
time 其閮8 u' B# W- M. U& Y  S
dd 其銴鋆踝敺if OF
, D( L7 o  A, o# H4 L8 V+ v7 Dif=/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
4 E7 S" q5 l4 o  @; wbs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
# z' v/ ]0 p1 @  O# ~鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦4 h) T% Q" O1 ^3 z: j9 G& M% d
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
+ s5 q8 i; p0 a3 ?6 U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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虫蝔格寞:3 B$ o% `' d0 h+ E2 j# K8 Y

& t' L* S* ?5 j" a8 B( Y8 l皜祈岫蝖祉霈摨:
# Z4 p" |0 i' J; a, _hdparm -t /dev/sdb* m9 v6 [" x- a" y' N4 e0 T5 L$ s0 D
# n! Y6 U9 |  f. v5 A
/dev/sdb: (雿輻禿aid0摨血翰)4 |* @( }7 S. B% ?- i2 N( F
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
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/dev/sdb: (敺靘寞LVM摨行)
; x5 S9 h( Z$ v3 O/dev/sdb:# r2 t! S. d  ^; v  s. O
Timing buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
+ |, B% D1 ?, G皜祈岫蝖祉撖怠仿摨:
; u! h- a* G2 C/ v2 f1 H; t8 w2 ^ hdparm -t --direct /dev/sdb
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0 q& z1 C7 ]! c( c/dev/sdb: (雿輻禿aid0摨血翰)
+ n) C* R2 Z. l. Z6 h Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec5 R  w) N7 S9 w0 W8 l" |

) r& L& l0 |" V3 I2 w3 D1 i/dev/sdb: (敺靘寞LVM摨行)
: f7 p( ]( m+ c6 `8 Z Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec8 y& b) x$ S7 T2 B$ \2 w+ M
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/ Q: E( e4 e; Y$ W血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝% c6 j* E1 r3 x# O0 M; c# O

* ~) b* _/ J) ^' l6 j' s$ Y  [6 N& P) E7 L
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