砍敺 IT_man 2017-3-21 22:08 蝺刻摩
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" Y+ i+ J" r U. A : http://linux.vbird.org/linux_basic/0230filesystem.php#parted http://blog.yam.com/wesley1981/article/16596463 賊隞 fstab, findfs, mount blkid
g7 y( S# ~( ^& d/ Ifdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html9 X$ \+ i) i( F0 Y/ D) L; S
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- l9 D5 z/ B0 A- @1 t) K4 J8 K& i
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啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
5 ?: \/ i& m; F/ J/dev/sdb1 /home2 ext4 defaults 1 1& t" T+ J1 K$ ^# v" M- W L
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parted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/+ w& h7 R. M a/ q n7 |% e
5 u) R. `% y0 a3 ofdisk 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
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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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& b# N/ O; R3 vparted [鋆蝵孫 [隞 [窟]6 `" @2 [7 v8 a( H& l0 x% _: ?) X
賊賂
1 i# H6 J7 D( H9 J$ O. L隞文踝
+ z! v" V+ e2 L# g9 b7 g/ _, e 啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
9 H3 x, K6 q. R" l# H' U 憿舐內莎print' r$ K4 v# t1 e+ l6 Y8 }, `
芷文莎rm [partition]
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- }* S% A) _! P寞銝:
& T+ Y/ | s7 V" ?# H(parted) mkpart primary 0 100% (primary皰artition name)8 y* Y1 x' Y0 [' V
( Z) o; V8 R' j z4 p寞鈭:
/ v3 _+ b j: t$ OPartition name? []? 30T_part
7 k2 S& w6 l4 ?& x8 N, O9 dFile system type? [ext2]? ext2 (ext4銝霅血)
8 c* G' @, ?! aStart? 0B or 0%2 E; T% {9 A9 {% b
End? 30TB or 100%
B3 \' m/ K3 k- \. H7 F bWarning: You requested a partition from 0.00B to 30.0TB.' \$ |8 \( b7 n5 ]3 N
The closest location we can manage is 17.4kB to 30.0TB.
$ ?! Q! h0 s4 }Is this still acceptable to you?) {4 ~$ X5 B& _) S0 f7 D% {
Yes/No? Yes
0 ] c q' w# |( u; ^Warning: The resulting partition is not properly aligned for best performance.# b0 Q" b. k9 i3 c k
Ignore/Cancel?7 ~, U; R. i. M. T! l" W
雿輻牠xt2撠曹銝餈啗郎
# R! N7 X% {5 F& lmkfs -t ext4 /dev/sdb1 ===> format
9 V1 Y I8 g m* e$ yERROR:, W" e9 U5 f, L2 G2 S
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits, x% ]- ?9 \4 E; m; B# ~
using a blocksize of 4096, S" X* g0 ~7 D2 D& ?
SOL: - F4 c2 A7 x& R
format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
# _$ w# } g/ u) T/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
; q; n4 s. F; {' [1 f+ Z/ A. e/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
; v9 o$ r7 w! M' Ucd /usr/local/src/e2fsprogs-1.42.7
0 A+ ^$ Z- p5 C9 p: h* o rmkdir build
, B, U. Y- x1 a3 n1 M' wcd build+ Y/ u4 c: D! Z
../configure5 H- X6 u: s ]4 M" s# B, p
make! x; o: v) ^+ x) J$ t: e2 V
make install
& ?# L' V6 |: Q: C+ }mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
/ D. h* |3 K$ M* T憿舐內銝:
" ?( I u( o L# oThis filesystem will be automatically checked every 27 mounts or
7 ^( [1 \' R D180 days, whichever comes first. Use tune2fs -c or -i to override.
6 B+ T# }8 y; g3 R- _/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
, W1 }6 |! J1 h' P9 Y5 f* 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)
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=======================================================================
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$ {, o9 p3 Q! c/ ]! }% N2 y[蝖祉皜祈岫]1." g+ ^, H5 C/ V$ A: g
Linux蝖祉撖怠仿摨行葫閰衣隞:
1 ?/ i, }3 {& O4 y7 p% t: Q1 |. W#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 _) Q! R5 h1 c
1000000+0 records in
2 X" {# r" J3 d1 y4 S! p1000000+0 records out- E, N( A S; W: y7 u$ V) Y# ]
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
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real 0m3.590s$ H) ?5 P+ B5 O
user 0m0.130s* v# e5 c4 ~+ T$ p+ a: {# r# {
sys 0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:8 v6 n( A8 ]: b
#time dd if=/home2/test of=/dev/null bs=2k
7 Q# f* l! \3 y1000000+0 records in
: p7 d! J/ K1 L1000000+0 records out
5 m! h6 P( |) o0 y- @7 r2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s3 ?- v; b7 I* y& l: A
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real 0m0.954s, F: ~& T9 E2 B! ~6 [
user 0m0.083s
9 e5 H4 I4 ~, l3 ~sys 0m0.868s* U' l* F, e9 m3 E; j4 Q
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閫嚗
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4 t& I. T, e* ydd 其銴鋆踝敺if OF3 @' i0 Q! n* R$ ], A. z) g. y& x2 g o
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
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鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦! n- A+ h: R: W- d
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳! n. r7 L/ Q- l! {( f& ^8 Z! m
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭- h* O% X; ]: o a# T& w
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皜祈岫摰閮敺芷 /home2/test! z" Y% c6 R4 I |
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虫蝔格寞:
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皜祈岫蝖祉霈摨:0 O$ m7 a4 M9 n
hdparm -t /dev/sdb
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% ?1 [/ q" A" y- {( ]; n/dev/sdb: (雿輻禿aid0摨血翰)- h0 ` C. O! i- t
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)
p& ?0 Q" |3 t& ?1 Q/dev/sdb:
+ }8 L1 l* K! OTiming buffered disk reads: 546 MB in 3.01 seconds = 181.43 MB/sec; g, ?1 G; u% d N
皜祈岫蝖祉撖怠仿摨:& q' U# E+ ~. u3 Y5 e
hdparm -t --direct /dev/sdb
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, f2 M) K+ j1 h/dev/sdb: (雿輻禿aid0摨血翰)( E8 |5 }( s2 A: i* |
Timing O_DIRECT disk reads: 1326 MB in 3.29 seconds = 402.57 MB/sec& P9 s, J) x: Y
. u6 w# [6 \7 ~/ ?' u/dev/sdb: (敺靘寞LVM摨行)
" U# Y0 I6 ^% J) x; @6 D% F 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- Q) @' P% ^0 J3 r: H4 \4 x) V
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潸” 2016-1-2 20:13:26
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