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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
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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+ U$ |& d. I8 V/ b2 W5 e
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
& K! \4 ^9 u" Z% Z+ F5 c8 eformat 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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1 ^' a+ U0 l. o- u5 k! _啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
1 _! u( _) h/ E- u0 K/dev/sdb1               /home2                  ext4    defaults        1 1
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- @# p" A: Y! A9 f: @) kparted 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; A) Y7 B% q/ [6 N. F* u% k# w

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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2 C7 M: O0 W2 ^+ n3 b
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parted [鋆蝵孫 [隞 [窟]/ ?3 r+ D5 ^" q2 i1 c  h, r! u  [
賊賂9 K1 g: I8 Q) `; a  y( t0 W- X
隞文踝4 J, N& _5 z1 G/ D1 X2 O
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯4 U8 d( ?! Y4 l4 E/ r3 E
          憿舐內莎print# X8 K0 f* U. w, o
          芷文莎rm [partition]
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4 t( N+ ?  @: ^: E9 R- @6 s7 H寞銝:( `7 W+ c# R* J. a
(parted) mkpart primary 0 100% (primary皰artition name): `0 F1 y: K3 T0 [9 l, p, W

* I& o5 E- N9 m& c  t寞鈭:
+ I+ ?  k* c& ?# {2 vPartition name?  []? 30T_part2 f6 T, Z  ^& j$ ~5 x! Y0 c
File system type?  [ext2]? ext2  (ext4銝霅血)3 T5 B" A* D' l) z
Start? 0B or 0%. y) z; @8 D6 m4 [6 }' @
End? 30TB or 100%
; O) h* I- h7 v0 N8 |$ P) O; zWarning: You requested a partition from 0.00B to 30.0TB.4 w* g) x! Z; M% Z9 k4 @0 e7 a
The closest location we can manage is 17.4kB to 30.0TB.; u. ]9 S) a+ B! r/ |4 G# [0 F4 G
Is this still acceptable to you?* R4 X' h. B5 A3 D  `
Yes/No? Yes& K9 r1 C( ^5 D
Warning: The resulting partition is not properly aligned for best performance.8 D8 o) T: k$ V  P  a5 k$ c5 S) t
Ignore/Cancel?. n$ @3 q* T( W/ o' |8 {
雿輻牠xt2撠曹銝餈啗郎5 I% V* N/ U1 Z
mkfs -t ext4 /dev/sdb1 ===> format4 f. y% s" p9 V* R; \2 n$ p% T
ERROR:
  v" ?; o; s/ T" c) n8 ?4 g- \* Emkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits2 I; j, U; m+ |) z/ m6 K- W! P
        using a blocksize of 4096
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5 |3 V3 I; `8 V, D# ?$ zformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit( o: S3 W  v& N1 y
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca32 u+ `" d. f  g
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
) ^+ O; R$ U0 j9 E4 J7 Y* ~4 Rcd /usr/local/src/e2fsprogs-1.42.7: m$ B; C; H5 E$ o/ w0 V1 X
mkdir build
: Y" e' W) P- y& Gcd build* I6 m7 }; C8 k
../configure0 E& o9 N! v. Y& h2 H- z
make4 ]! Q: a6 \$ f/ L
make install
7 z/ e; R; V' N8 x7 Cmke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
; ~5 q) @0 @) l6 P! \% w憿舐內銝:
. [! c0 M/ _3 o) rThis filesystem will be automatically checked every 27 mounts or1 e$ {  D8 L! E8 ~- c9 ?
180 days, whichever comes first.  Use tune2fs -c or -i to override.  V8 [/ `  o. t0 q, W; X1 R
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)9 a, d/ q) I; 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)& l9 ~) l2 A2 n
mount /home2- U; Y5 o9 L" r, Z" f! E, ~: r
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* k0 U$ c" J% g: U7 ?=======================================================================
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% t7 l+ r) U8 O# i/ Y3 D  ]0 V[蝖祉皜祈岫]1.+ E, W: f* `$ n: p6 [
Linux蝖祉撖怠仿摨行葫閰衣隞:
* z/ O6 s2 _/ A6 Z$ u' |#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
5 t+ X% H$ I, {, G& t- y3 H1000000+0 records in
7 G+ x0 K+ \" q! m. a) G. B- V1000000+0 records out! N, d9 t! r1 H3 Z3 I; _1 S; R
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s7 c% {) J! J# P7 g# f$ o# K

% p) q: G3 }9 Y/ J7 \0 @. i2 Y) x9 z! D( Sreal    0m3.590s
4 s5 G3 a1 U, Y) X. ?" n1 [user    0m0.130s0 k1 Q, z. E- f+ }2 Z# r
sys     0m3.455s
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#time dd if=/home2/test of=/dev/null bs=2k
5 b- W0 k6 S9 E  h- b1000000+0 records in
$ c' F5 [8 X+ u1 U9 k* t5 O( l1000000+0 records out* b5 j- |' O0 V0 a; K
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s3 M: L! E3 g. c+ p8 t" u' r* Y

+ l' t0 L4 s8 Z& H$ f$ n! O7 G! v  greal    0m0.954s9 M: m* g8 z9 m9 a7 L
user    0m0.083s5 O! O3 K* ]7 Y- Z, J
sys     0m0.868s
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閫嚗
1 t  K$ i9 H- r  C5 ^; E) Dtime 其閮
) \% D% \8 y* K+ e5 K/ Q2 Wdd 其銴鋆踝敺if OF
  M" Q" R- B9 y7 x/ T! o9 R) n- |# fif=/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 @, Y" f; p7 l1 I
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
/ D' ?3 r+ z. m( i& V2 B; I鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
3 v; |9 M$ }  C& ~豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
9 u$ ^8 W6 s2 e望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭; h8 ]8 i, N  w6 e. c! f* V* @  R

. S' v4 ]+ L, g' R$ E7 G+ F皜祈岫摰閮敺芷 /home2/test
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! O+ H1 a8 e9 T3 ?" x虫蝔格寞:
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皜祈岫蝖祉霈摨:3 X" ~" F9 K! g5 N& {6 e( M- G
hdparm -t /dev/sdb
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2 z8 D% C! ^$ b" |/dev/sdb: (雿輻禿aid0摨血翰)9 z! s" F$ c& g0 k8 c
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec/ r! @' a5 [0 [5 w, A' }) S4 h0 S
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/dev/sdb: (敺靘寞LVM摨行)
$ P3 B7 ?5 V- _+ X$ k9 L7 R; M/dev/sdb:
% S' I, D2 P6 i" A* oTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec0 v) o2 x5 B) j  A' K% F  p! b
皜祈岫蝖祉撖怠仿摨:" s. U0 K2 F2 B: C. M; J
hdparm -t --direct /dev/sdb& @8 k" q1 I% P1 e6 a
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/dev/sdb: (雿輻禿aid0摨血翰)
, w7 }( M' M" N( s: y% [ Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec
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- S% z1 x& s& K# @/dev/sdb: (敺靘寞LVM摨行)
% \; h( x3 q% B0 Q: ]4 N 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+ s4 w+ B$ B8 w4 H# L+ _
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雿輻券

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