砍敺 IT_man 2017-3-21 22:08 蝺刻摩 5 J. L6 x' g+ G1 X- ]1 b6 g
. j5 p3 d& C6 v3 G+ E2 c7 \3 p, c : http://linux.vbird.org/linux_basic/0230filesystem.php#parted http://blog.yam.com/wesley1981/article/16596463 賊隞 fstab, findfs, mount blkid+ K K$ J& m8 }2 G4 k5 K
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
6 G5 g( `7 w6 B; w" f1 @- Cformat 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% Z7 ^4 Q2 L: w7 M3 z
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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:7 g' F7 J+ O! k
/dev/sdb1 /home2 ext4 defaults 1 1
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9 }; P& W7 U4 \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- ?6 s2 z5 J- |, U& t& H
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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. u, w* w: v5 G# j
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parted [鋆蝵孫 [隞 [窟]; N$ u1 k/ W7 o l& ]& N9 N [) ^
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隞文踝
. y0 x8 r8 g# Q- }# N& S 啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
0 t' ~ f9 M2 T9 Y 憿舐內莎print) F# |' O [: \- u8 e9 ^/ L/ ^$ k1 n
芷文莎rm [partition]
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* E$ j4 o9 b9 ?: l(parted) mkpart primary 0 100% (primary皰artition name)
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寞鈭:% L6 ]4 P9 _7 @, `% ]: {: Z& l/ g
Partition name? []? 30T_part
; d, V+ n: K7 c$ B: e: ^/ E# bFile system type? [ext2]? ext2 (ext4銝霅血)% J; S1 K4 n7 `% o, l3 }9 B" S
Start? 0B or 0%
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/ M) ?% o# ^8 x6 S! `Warning: You requested a partition from 0.00B to 30.0TB.; p, O# J+ [1 z
The closest location we can manage is 17.4kB to 30.0TB.
1 |3 {8 X0 C) D h+ i6 n. IIs this still acceptable to you?
b) t% O* D1 m, c0 uYes/No? Yes
4 p% H6 ]3 R' {" E0 \0 rWarning: The resulting partition is not properly aligned for best performance. P* q9 Y# \' \! R
Ignore/Cancel?
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mkfs -t ext4 /dev/sdb1 ===> format' ?6 \& N ^: W0 y9 `% p
ERROR:; g) I3 k5 Z' [' t
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
; O$ W3 R+ @- n0 u$ A$ G3 p using a blocksize of 4096
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8 R# @2 n5 \: [3 ^format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
& i1 C- |# f/ ], i( Z/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
; A1 \3 E: `( q0 T/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
3 g4 d4 R0 k' E3 n3 dcd /usr/local/src/e2fsprogs-1.42.76 |: S! ]6 _) V% w
mkdir build
0 B, `) e. o$ y+ fcd build, k0 ]. t! n2 ? D
../configure
& D3 c! E% N4 Y5 F0 _ make
9 [& _. {! u- a' w, V make install& q0 `! t" ?: ]/ r, g% g W
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
1 X2 B$ C9 \. h( W憿舐內銝:
/ p# p' j: q3 v% g; x8 _This filesystem will be automatically checked every 27 mounts or
; z+ P" S v1 p: }8 e8 c180 days, whichever comes first. Use tune2fs -c or -i to override. w k+ T" j* J, k
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
1 @/ g' |- H5 c1 x7 O1 y- Z0 O/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)! o7 t) i/ L9 Y' L1 W5 d
mount /home2
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=======================================================================
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$ b' O7 s" g) g0 G/ ][蝖祉皜祈岫]1.
5 F- O6 q. u1 h6 T) LLinux蝖祉撖怠仿摨行葫閰衣隞:- P' r4 P0 F* o4 k8 v- D7 l k$ l. D
#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" y' I N" {1000000+0 records in1 O Y5 `0 z' s1 ]. O
1000000+0 records out1 Z3 c, @4 j; `& W
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
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6 Z: p& H8 j2 U: areal 0m3.590s
" b! x% \4 w l# H1 }user 0m0.130s$ [% Z* x" F* b) H) W" x
sys 0m3.455s. }+ A# H) {. R
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Linux蝖祉霈摨行葫閰衣隞:8 Y" \7 y. }! @ H1 n! s2 d2 Z
#time dd if=/home2/test of=/dev/null bs=2k* D7 V- l* Z* V2 [: g$ z
1000000+0 records in3 ]" l" K0 s0 {7 l7 ]* N- C
1000000+0 records out
* \1 r* q( I- }; L2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s, }' f( I3 h, o7 @2 B y7 B
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real 0m0.954s
* Y/ d( F" a1 R+ ^* muser 0m0.083s. y' b7 x5 I$ g4 L9 P9 g& M$ D9 s
sys 0m0.868s
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7 y' |/ V3 w& I ?閫嚗
2 s% T" M2 d: p2 A, f2 Ktime 其閮( V( O1 @6 W* D; u5 }1 i! C
dd 其銴鋆踝敺if OF- ]* v2 S8 `' m2 J2 v
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
: ^2 t+ o, M( ]" d6 \0 Bbs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.: a" i* m+ k8 e: f5 C
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦1 `% O U( ?$ ~
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳1 k: O2 ]7 Q3 U
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭2 _% J1 c/ I+ P) m3 G. k3 T
: }9 C& f/ z0 N皜祈岫摰閮敺芷 /home2/test
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虫蝔格寞:
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, K' m/ ?5 \% ]& F皜祈岫蝖祉霈摨:& p- S0 J }" M5 Q: w
hdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)
! G4 U0 x. }/ T# {& t Timing buffered disk reads: 1732 MB in 3.00 seconds = 576.98 MB/sec. V3 I) D6 N S' z
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/dev/sdb: (敺靘寞LVM摨行)
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Timing buffered disk reads: 546 MB in 3.01 seconds = 181.43 MB/sec+ F( l9 t7 v0 a
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hdparm -t --direct /dev/sdb9 F/ O3 `9 {* F5 l
- a L' g" j/ L' |, ]3 O6 c: i/dev/sdb: (雿輻禿aid0摨血翰)& x& q3 d( c# U+ P
Timing O_DIRECT disk reads: 1326 MB in 3.29 seconds = 402.57 MB/sec
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* u' [6 `$ X0 F3 S; ?/dev/sdb: (敺靘寞LVM摨行)
! e. W0 s( k3 m/ W Timing O_DIRECT disk reads: 560 MB in 3.00 seconds = 186.36 MB/sec3 I& T: Z; u8 l; L0 y; a
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) l7 B; @; Z9 V; r# ?# D7 ]2 M$ [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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