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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
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: V/ G9 Z( C- f6 p4 d9 X : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid: N1 R& _  S. C
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html7 ?# k+ n' n! u; X
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.html6 C- K$ a% ^% B7 _

/ K9 w1 E2 X% Z. e3 }啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
4 f7 b9 }" J  \/dev/sdb1               /home2                  ext4    defaults        1 1
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/ i5 E7 S$ Y# \; ?parted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
. k3 }# m% k8 z7 T5 z% W   
( ?% Y8 ~/ Q* Ufdisk 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4 \# _* n5 r9 }" m  |/ L7 r4 _$ t

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6 T; s' S8 E( J9 Q5 Dparted 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]$ ~  o! R+ [& n+ ~4 i
賊賂
! k+ H3 E5 t+ w# \2 b$ E2 O3 M隞文踝
& U7 ~& c0 {+ h' x! R7 d7 z4 [          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
& C0 H' C! j0 D3 Y: B          憿舐內莎print
2 G0 o1 `2 \" a  W, a! o. P" D9 g) S          芷文莎rm [partition], u/ U3 d* L9 [5 g
靘憒:
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寞銝:
& i! I6 g: }( n5 P(parted) mkpart primary 0 100% (primary皰artition name)# ^; I* l3 B; B# V, [
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寞鈭:
* Q6 t3 N8 C9 x2 b; |6 m# T4 pPartition name?  []? 30T_part
& |- g& i6 K* a1 R) R5 B& d; e  i; pFile system type?  [ext2]? ext2  (ext4銝霅血)
0 _, W$ G4 R8 t) c/ {Start? 0B or 0%8 ?' ~& H8 @  K- C# z* N1 O. o! u  b
End? 30TB or 100%
* Q1 e2 o, f" [3 YWarning: You requested a partition from 0.00B to 30.0TB.9 H6 o+ W& F+ G/ h) S! _# c  w
The closest location we can manage is 17.4kB to 30.0TB.
6 P; A0 j& b0 x+ ?5 U, vIs this still acceptable to you?
1 P- D  @3 c2 y' u) I4 [* W! kYes/No? Yes" R! h6 @) e8 U, U
Warning: The resulting partition is not properly aligned for best performance.
$ t. U% k9 J) YIgnore/Cancel?, E7 r$ G0 s5 d3 f8 Q, @  z
雿輻牠xt2撠曹銝餈啗郎7 K, i) H% q' B( r
mkfs -t ext4 /dev/sdb1 ===> format/ ]! ~8 h4 h) f$ K1 f& ]4 y+ Z
ERROR:2 v/ u; m/ r7 ~' A; o  ^
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
5 x  p( G# C; H% B        using a blocksize of 4096+ m  M7 A6 w2 t% r
SOL: ! s5 F1 a4 m$ I+ s0 ^5 U/ i/ V# Q
format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit" e5 e& F2 f3 C  Z" A; j
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
! I- I- P2 d0 F/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
8 W7 V4 z+ {1 h! f/ ]0 Q5 d! Y# R( Kcd /usr/local/src/e2fsprogs-1.42.7
9 q; j/ T0 [; I" imkdir build
! y& ?2 P) Z* K0 D) Z4 }; Wcd build8 I5 T  s+ F: z4 J
../configure
" D( A3 B5 s& v: j; S" [; N2 p, Q make
$ I5 s- M& N, |- M make install# ?0 [2 y6 X4 d  K1 p" e2 M. v
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1" T5 a: s# N, y& h
憿舐內銝:) W1 A' D3 d% l, ?
This filesystem will be automatically checked every 27 mounts or
* j6 c$ c( b; {) I- U180 days, whichever comes first.  Use tune2fs -c or -i to override.8 s7 o( `; d$ g  x5 _
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
6 b1 I1 S2 |9 `3 N7 H/ W; y% W+ A/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). @/ k( d- }1 e) u: \+ X* ^+ t
mount /home2, X; n8 P. j. t. t

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=======================================================================. w: ]! Y$ h5 p  r! n
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[蝖祉皜祈岫]1.! w( B" Z2 H( B7 Q: C  E! ]" w
Linux蝖祉撖怠仿摨行葫閰衣隞:
4 X; O; z2 v5 g" l! ?8 ]2 J6 A#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
- M# _- c7 P" l+ U1000000+0 records in
! ]1 ^5 y$ E8 C" W1000000+0 records out  H8 K5 r7 u3 M; F
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s* s3 w8 }8 j" ^9 K
1 g! G: h% U8 B% B  O* T
real    0m3.590s# R5 V* k8 X* y9 D! {0 G1 n/ V/ x
user    0m0.130s
" q4 A' ~1 C0 p7 z* @sys     0m3.455s
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* U6 [% d' l0 M/ S# D0 cLinux蝖祉霈摨行葫閰衣隞:! D  K# V$ {* M4 J: U4 N
#time dd if=/home2/test of=/dev/null bs=2k
& J8 X4 s6 v% W7 A- d' p1000000+0 records in
; ?; j" _4 ]9 C' s5 f6 ]1000000+0 records out2 D9 d1 k4 s1 W7 h' ~  g
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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real    0m0.954s
# q" |9 ?8 J* X. w5 i, S& \. b+ {& _% Iuser    0m0.083s
& h6 E, Y! n$ e; P( \sys     0m0.868s
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+ n# Z, O+ Q) y, u% L; q* y7 L! d9 @閫嚗7 q3 B2 B9 ]/ S( q3 \
time 其閮& J: A% V- G: c( ?
dd 其銴鋆踝敺if OF
3 C) L7 t0 S. Q$ ?1 \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7 y) f( |; z, C8 R* `7 l$ y* K
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.0 Z6 p4 B  F" \! l+ W4 ~2 U
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦1 w$ q9 ^: I- M& i3 s
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
( \6 t- u! v. D  L望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭+ H2 P: @2 _& T% g6 _* [7 r- ?

5 y4 a0 Q0 X. W. \+ G7 C. y皜祈岫摰閮敺芷 /home2/test
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# }8 W5 ]; J8 @4 r) _$ I2 ?虫蝔格寞:3 m; V8 r) h3 S: n, M) G
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皜祈岫蝖祉霈摨:/ y( T) b2 _5 F7 T4 y( @
hdparm -t /dev/sdb
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) Z# i7 z% M$ E  r2 ]# F/ R3 F/dev/sdb: (雿輻禿aid0摨血翰)
8 b# p: k( z: J0 a1 r# n Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
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! d" Q6 l7 ^; {0 y4 A6 v, Q" E/dev/sdb: (敺靘寞LVM摨行)- G3 P6 v, f6 ~* d/ [: d8 N
/dev/sdb:
/ U2 b  l- b5 V0 R- oTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
$ A: \- h2 `7 f皜祈岫蝖祉撖怠仿摨:3 a$ z2 ?; J% W, n
hdparm -t --direct /dev/sdb
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9 v$ U7 Q. ^6 n0 p/dev/sdb: (雿輻禿aid0摨血翰)
) L! C9 W7 ~* |. V) { Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec/ }3 p4 M: t- V2 Y$ x4 j
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/dev/sdb: (敺靘寞LVM摨行)( S; C6 O3 ]: b6 @5 D0 `
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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