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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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3 d( t0 n) ~4 l# @8 g% o : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid& t+ q/ s! R* M2 q) N2 l0 q. ^
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html7 R. V# `3 {6 O4 G% L
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.html9 s. B/ l! X! m2 U

5 c7 I8 g4 a1 ~: m( j! O  y5 T啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:* D- l' y+ ]5 Y3 z
/dev/sdb1               /home2                  ext4    defaults        1 14 }# @0 ~6 ~' z/ x4 @5 `8 Y' J# y
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parted 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4 c; H1 u. [( z, t& F4 r

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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- S, m5 Y7 x, w9 g, E

$ ]7 i7 |/ A% W$ s$ a* Tparted [鋆蝵孫 [隞 [窟]
# w6 {5 _% B: W# L# D; A" d2 s% Y賊賂
- y9 _. G7 V6 n0 f  [( N( H" t隞文踝8 a$ _' o% P3 |6 |- A
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
* c* ~" `5 L/ u% \          憿舐內莎print
) q8 L2 }8 F/ ?+ B+ h  K2 R          芷文莎rm [partition]4 |' K' H' U7 Y) |/ A' C- V
靘憒:
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寞銝:
6 e# q1 y2 U5 R1 I1 q2 K(parted) mkpart primary 0 100% (primary皰artition name)
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* d4 c( D4 J$ ]; l/ v2 K寞鈭:6 S  I4 Y( L8 e# h
Partition name?  []? 30T_part
  u8 t6 q  q3 k+ NFile system type?  [ext2]? ext2  (ext4銝霅血)
. y4 A, P. D5 zStart? 0B or 0%9 \; ^8 }$ t3 j& Y! [
End? 30TB or 100%; S* h, q6 e  ~' v
Warning: You requested a partition from 0.00B to 30.0TB.  m  r3 C2 r7 [6 o3 R" B
The closest location we can manage is 17.4kB to 30.0TB.
# O* s, ]/ B; U, }3 _3 N7 _Is this still acceptable to you?# B+ L- ?, ]% X, l! P
Yes/No? Yes3 I% i* r1 O6 T) b& _
Warning: The resulting partition is not properly aligned for best performance.
4 M6 i, ^. n6 NIgnore/Cancel?
/ a) l& ~+ P7 O5 ^7 ~% |雿輻牠xt2撠曹銝餈啗郎) X4 @! K; }+ l' H+ _4 Y( w. o
mkfs -t ext4 /dev/sdb1 ===> format
! G  T: _# n+ b0 s# M2 q3 B% u. l( sERROR:
' c( n+ j! V* pmkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
+ `/ |; M* J/ T- Q* W5 ?. T        using a blocksize of 4096- H4 @: S% Z+ T- m' |* ~3 d( }
SOL:
4 q2 b/ j( K0 r0 Iformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
2 H, I* W( N- F0 y0 D/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca33 ^% S. t. X/ D
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz8 \) N7 C1 P$ h' p( ~
cd /usr/local/src/e2fsprogs-1.42.7
  N2 T! y# F8 Z% f+ zmkdir build6 T. y. x9 F/ c& i9 D7 A
cd build
& ^0 }4 k, w4 u) Y ../configure* @  a2 O+ F1 d1 e
make
7 @  M7 S) i' O0 Q make install- M- F. ]2 O4 v) y' E
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
% B  E/ y8 @1 n. p憿舐內銝:
! P% l, N8 T8 B9 f1 U6 X8 U+ u3 JThis filesystem will be automatically checked every 27 mounts or% N! B# b, Z- T6 q) d' [& r* M
180 days, whichever comes first.  Use tune2fs -c or -i to override.
! G6 L) o" H2 p: R9 A0 N7 t* ]/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
+ u: W. j3 r" C7 O) H9 p/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 u4 M: n3 l2 O+ C: a; Emount /home2, Z# m5 h4 G3 R4 u* d" L0 W2 e8 C9 Y
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=======================================================================6 D5 Z7 f7 ^8 f$ t& l2 G
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[蝖祉皜祈岫]1.
3 p, h* m. z9 _) TLinux蝖祉撖怠仿摨行葫閰衣隞:
( a4 ^; u1 r6 y#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. f+ s  t6 I7 |, [" X  W, ^9 R& G
1000000+0 records in/ {% m' U# [2 q
1000000+0 records out
, e0 [7 N7 ?: J/ B' V$ M* t2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
6 s4 `* S" R+ L7 ^. M' Y& W4 o* n6 T/ ^, w2 u# B3 E& e/ m/ T
real    0m3.590s
( Y7 I7 I, h$ V: W( Huser    0m0.130s
1 [( T" O2 z0 z& ]% |) Vsys     0m3.455s3 e  B/ [5 p* D% d  y
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Linux蝖祉霈摨行葫閰衣隞:( X% ^$ Z  q9 U; k
#time dd if=/home2/test of=/dev/null bs=2k
" ~2 o, V& b" j( j6 g- u0 l1000000+0 records in
) I  |$ ~( f& G1 `1000000+0 records out
" v" m* Q- u, v2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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real    0m0.954s+ w0 J7 f& w0 k0 s) k9 K0 l  @6 k
user    0m0.083s
' H+ |7 r1 T3 N8 t1 y+ M! Lsys     0m0.868s( L* `! o. {" ~

+ @+ u  C) I6 y1 O1 H! L: f' W( `閫嚗
( t# r& r5 y  B- X, K+ {time 其閮. x$ y6 a# v7 ^: {
dd 其銴鋆踝敺if OF
8 R) e; F7 z, I# \. V3 yif=/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
! g  v& E1 d  Q  l, {  jbs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.2 s& F" V, z2 e
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
5 a0 K% _; w9 q9 e4 Z$ A2 h豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
' V) g% ~( S: O( w5 I望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭
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/ r% K2 S! p5 _2 G) V* ~皜祈岫摰閮敺芷 /home2/test
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8 I% B0 D- X; i' A% K% S9 X虫蝔格寞:
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5 P0 d) B8 I8 G9 ]) ?皜祈岫蝖祉霈摨:
$ Z: w3 @2 n, Bhdparm -t /dev/sdb* W( K, B6 X$ d: i8 s) H# w
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/dev/sdb: (雿輻禿aid0摨血翰)
, C: y( V$ y" L' q8 o+ Q! w Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec# K$ z# B( U$ q+ Q. |6 }/ C4 h

. z5 |; u2 w& N! }/dev/sdb: (敺靘寞LVM摨行)  v1 i8 g2 {$ e: `
/dev/sdb:& ^- v! D, e5 {; s
Timing buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
* ^2 h) y4 l; k2 F2 Z/ e; R* d皜祈岫蝖祉撖怠仿摨:
* H3 e  w7 T, ~* Q8 I hdparm -t --direct /dev/sdb
7 s5 ~9 m9 z0 Z5 D7 ]8 t* }/ J8 w2 I  L( ?8 I& |
/dev/sdb: (雿輻禿aid0摨血翰). U: P; K: W3 B' e0 i
Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec
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/dev/sdb: (敺靘寞LVM摨行)
$ ^) A5 r) V- U! p3 l, ^1 ^; e2 { Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec# B( |( Y" D( Q+ O- @3 g/ Y; S; B

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血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝) I% Y* b( _+ J8 Q+ C% D, J& B- z& F2 `

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