砍敺 IT_man 2017-3-21 22:08 蝺刻摩
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# z5 t0 A |$ g! ?' l+ \3 [3 ^ : http://linux.vbird.org/linux_basic/0230filesystem.php#parted http://blog.yam.com/wesley1981/article/16596463 賊隞 fstab, findfs, mount blkid
* a; G7 C+ k: F* P7 Jfdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
; v5 j; x1 J' |$ n4 V' C% Uformat 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.html1 i! ^3 A! D3 S! c# t
+ U9 N7 D" x4 ^7 Y( Q% u" m0 f6 R啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:2 _+ k7 l# T0 M) e
/dev/sdb1 /home2 ext4 defaults 1 1" E' d9 \* `6 H, A* Z* @8 W! B
/ B) ?2 K9 }. [: O2 i3 eparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/ S2 R- k8 |: f2 u, b( r h
- @) s% D l9 F5 v- q6 |) J# Pfdisk 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 ?7 A0 b' y. M) X& o4 R( ^: u
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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" O; Q7 ~. Q7 P; E7 w9 F* \
+ [) X/ O& K( x* N( c% y" O: |& xparted [鋆蝵孫 [隞 [窟]0 D' |8 e( w. o: G$ }7 B! x
賊賂
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啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
# a4 K! {' r* [- m4 s6 W 憿舐內莎print
( [- q X/ M" m+ B. U0 I$ B) k5 z 芷文莎rm [partition]
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寞銝:
( L/ ?! X% ]; N, v% v(parted) mkpart primary 0 100% (primary皰artition name)
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寞鈭:" h& {0 J2 u( S% ^! {
Partition name? []? 30T_part
. ]' R' }2 G% E5 |File system type? [ext2]? ext2 (ext4銝霅血); ?1 V9 g1 o2 A, }
Start? 0B or 0%: c3 Q8 _3 Y+ c
End? 30TB or 100%6 ], q2 N9 {2 U% s5 S- m
Warning: You requested a partition from 0.00B to 30.0TB.
- k8 B6 l, Y/ @" \( M% \$ aThe closest location we can manage is 17.4kB to 30.0TB.1 U5 N; u6 @6 y
Is this still acceptable to you?
6 R5 @# _) Y6 `& V6 kYes/No? Yes
1 w! [4 ~* z- v7 y0 K& {! M/ IWarning: The resulting partition is not properly aligned for best performance.# c: C6 n5 p& ?7 {4 h4 Z
Ignore/Cancel?( Q0 D! v5 b% |$ \" {
雿輻牠xt2撠曹銝餈啗郎
: K; y( z( C0 k+ b4 g% N7 Imkfs -t ext4 /dev/sdb1 ===> format
& K- k, ?9 z. p; Y0 B$ UERROR:
- b. l% k9 O4 b! W- X( g& R; O5 ymkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits) ?) h1 U! D0 E3 J, Y! v- f, B7 v
using a blocksize of 4096
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format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
" z" B8 O/ J2 e, M6 @7 f5 g/ r/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3( x: \3 S$ ^9 E0 U8 e- _
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz+ W3 ?5 g2 V. \) i% n7 E
cd /usr/local/src/e2fsprogs-1.42.7
2 s4 x; k3 k9 Hmkdir build
0 u$ _7 h' }% b6 W7 p! acd build' k2 V8 f* J7 y; A# F) b! S8 J, {
../configure
7 y( @0 o2 W4 T9 x g make
, k( z$ k. H, m2 w make install3 t2 l8 m+ }6 E; H6 N3 I4 k4 l1 h2 H
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1" N" o) Y" O; ]7 J$ A# O q8 ?% e
憿舐內銝:7 k$ b0 ?$ w% F i% s
This filesystem will be automatically checked every 27 mounts or: B) {' l1 f2 _2 h- D
180 days, whichever comes first. Use tune2fs -c or -i to override.$ y3 R; }# m. U" u- y4 |! v1 c
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)3 K f+ X$ o7 i% I( \- [# \
/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)! U* R! z. U3 t6 w
mount /home2$ ]. A' {& K, [2 F' R5 Z
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=======================================================================7 A: |5 q3 X. i" Z, s
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[蝖祉皜祈岫]1.
- {/ w3 H+ A9 L8 g* ?# G! w vLinux蝖祉撖怠仿摨行葫閰衣隞:) q; f+ P2 |9 g9 n1 e
#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
- w8 T% e0 L5 c! M1000000+0 records in; ^: X! f6 Q& z7 r2 B" g1 P# ~
1000000+0 records out7 s" ^# A5 k! g
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s1 h3 l# ]4 C1 {/ H. D
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real 0m3.590s( B% _$ f0 k' u$ w" G1 W
user 0m0.130s! u! o0 B; v9 W; S% b
sys 0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:( O% u% l0 R1 z7 j! z
#time dd if=/home2/test of=/dev/null bs=2k5 j( Y: t m4 [8 I# A( D- f
1000000+0 records in) t$ H) f1 u9 i) \$ O) |
1000000+0 records out
8 u+ n/ V( d$ ]2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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real 0m0.954s) [( o/ T2 c- P- k
user 0m0.083s
; w) E( G' F5 _sys 0m0.868s B$ I# g! @0 [, a
. ^, V9 V. D0 C+ I閫嚗4 E/ ^" p; E) `6 r, K
time 其閮0 F. S. Z4 }0 p. U. j- E$ r( E
dd 其銴鋆踝敺if OF [) j3 K1 `/ ?3 b/ U; A$ g
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) x; z7 z6 s" ~
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
/ L" W% X6 G1 I ]6 L! c- q. _鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
! L( Q; N1 f- v* U, p' c3 k豢頞憭扯蝖殷憭甈⊥葫閰血撟喳* ]! ^: [3 n f( i
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭
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: ^6 p; J, D9 U: K# E# p皜祈岫摰閮敺芷 /home2/test
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% |! V$ E/ d1 M, \, i6 l虫蝔格寞:
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( t/ F6 \# M8 a% D$ A皜祈岫蝖祉霈摨:
; H, V0 b6 G2 e6 |hdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)- V6 I: c& F. l+ Q
Timing buffered disk reads: 1732 MB in 3.00 seconds = 576.98 MB/sec% V: x# K4 `2 L' m/ R
9 v& R d# \7 r' e }. V/dev/sdb: (敺靘寞LVM摨行)
- ?7 l( P! }% k$ m# t/dev/sdb:
7 j+ m9 h& D% L+ Q7 [Timing buffered disk reads: 546 MB in 3.01 seconds = 181.43 MB/sec* b6 g. F5 }! [
皜祈岫蝖祉撖怠仿摨:& A$ w2 H, J3 K; ?( T2 Y& \
hdparm -t --direct /dev/sdb+ s8 }2 q9 L& C) u0 E
( {4 H: n# v) a3 b& R# _/dev/sdb: (雿輻禿aid0摨血翰)$ n9 V1 e& y( P9 ~; U9 e% [$ N
Timing O_DIRECT disk reads: 1326 MB in 3.29 seconds = 402.57 MB/sec
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- `+ J7 T; g/ T* n/dev/sdb: (敺靘寞LVM摨行) u+ p. a8 M: z
Timing O_DIRECT disk reads: 560 MB in 3.00 seconds = 186.36 MB/sec- A3 g" I R. O! C7 [3 a* s c `
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) G" \5 U0 L3 I血皜祈岫 /dev/sda SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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潸” 2016-1-2 20:13:26
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