砍敺 IT_man 2017-3-21 22:08 蝺刻摩 5 b/ m6 w% Y ^* l; d* i
( Y# m: G$ B, k% V( x" E : http://linux.vbird.org/linux_basic/0230filesystem.php#parted http://blog.yam.com/wesley1981/article/16596463 賊隞 fstab, findfs, mount blkid( b2 c5 N& p+ e' Q8 O* {) N v
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
3 T' \4 I6 q6 h8 u& u6 Pformat 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, C% Z, u( N6 A. B# s. n( E; A
7 H, F8 I, s" z. o/ u, x4 V啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:" M* T8 \1 ^; p, @) G/ k* g
/dev/sdb1 /home2 ext4 defaults 1 1
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parted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/# V+ }: \* o4 j! z( w
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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
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" v+ g$ h7 y, _" }: zparted 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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parted [鋆蝵孫 [隞 [窟]
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啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
" @1 ~, y$ N+ m% e' P 憿舐內莎print
) e7 [& M1 X+ Q9 f) T# P2 g 芷文莎rm [partition]5 f0 @, J% q# f& C o( O, s
靘憒:
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_ x. Q; [ ?寞銝:
% A5 e* j3 @9 _# M5 a) L) V(parted) mkpart primary 0 100% (primary皰artition name)8 ], r4 ?; B7 A
! T+ t) V R7 I3 ?1 q) k+ k$ S" {寞鈭:
8 R# d& [6 L* t6 u0 P' T! tPartition name? []? 30T_part
) m! @# y1 }9 V1 v# J, h2 Z+ k4 dFile system type? [ext2]? ext2 (ext4銝霅血)
' L+ X% j. }& mStart? 0B or 0%; a4 o3 } w1 w3 q5 r3 q
End? 30TB or 100%! a/ Y) ]2 Q9 F' E P
Warning: You requested a partition from 0.00B to 30.0TB.6 j1 V. ^2 V& [
The closest location we can manage is 17.4kB to 30.0TB.1 Y; |( t& p' L2 d( y( I7 B! y: C
Is this still acceptable to you?- w V2 H$ J0 H7 ^# O
Yes/No? Yes
& H$ g( t/ O3 T7 MWarning: The resulting partition is not properly aligned for best performance.1 j( p% J+ U: R8 _5 z' h/ d$ ~# j
Ignore/Cancel?
. y1 [3 k( G9 j1 k- G0 I雿輻牠xt2撠曹銝餈啗郎
; {+ P% c0 k# o, omkfs -t ext4 /dev/sdb1 ===> format- k( w& G! ]& ~; O
ERROR:. C+ a8 _6 f" V
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits7 d7 \% Q& m, w; J9 N9 S
using a blocksize of 4096" K6 n, O6 }9 V1 l% |8 p
SOL:
6 g; E" E- h) I# H1 A8 x, Yformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit) J/ Y7 R) p% L# h3 x2 E$ E; i5 W
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
1 H1 Q- }" L& o$ `% I7 j) a/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz- x7 o6 K, @6 Q0 p9 Y0 r
cd /usr/local/src/e2fsprogs-1.42.73 S6 r g' h; Z9 L5 i
mkdir build; L5 O8 E" j! ^# e- ^
cd build6 r y# _2 s1 g ]5 a( _
../configure" @. h, b' S) o! f2 S
make3 u6 R* ~' Z; h
make install. q: _! @; q' P
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1! E$ b4 j8 Z" h* \5 v
憿舐內銝:
$ N8 A/ D$ O' Z; O$ _This filesystem will be automatically checked every 27 mounts or
! o9 d& M5 |. k6 S4 B& }+ M4 {9 i5 N180 days, whichever comes first. Use tune2fs -c or -i to override.
6 ]) ^5 P9 s% j" D5 B1 ~ d/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)7 Q8 A) h( j* Y7 _" C
/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): B2 h6 x; Y; d0 v4 P- _3 [
mount /home2$ ^4 G+ I/ F; R1 h% |
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=======================================================================
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[蝖祉皜祈岫]1.& e. C3 J+ s" y# W1 Y/ ]
Linux蝖祉撖怠仿摨行葫閰衣隞:/ r8 Y* V! c. O( W. n4 t
#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* j7 }% h) w; w# t, C1 S6 Q
1000000+0 records in
4 }- W' y; s# w$ t" q) T7 u1000000+0 records out
- ]0 v7 g& q) [2 o c0 m4 U/ J( U" z2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
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real 0m3.590s
" a" F0 J% f ?4 h$ ~user 0m0.130s
7 C; S' W1 E& ?. f/ b5 ksys 0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:9 @6 i5 o* J- T
#time dd if=/home2/test of=/dev/null bs=2k
) t! d& O( U L& k1000000+0 records in5 p. U0 a" s" K
1000000+0 records out0 b" k% u- A' n* Y
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s3 X0 G$ R0 q) v C& s! P! ?6 G+ ^
9 t R* E; U' ?: F5 S1 u! Q nreal 0m0.954s
4 E, k' r/ a; G- W+ Y/ a% R% ~# zuser 0m0.083s
7 R' ^# z# q( D0 e0 Y1 Tsys 0m0.868s
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5 h3 g! o( |% q$ ]閫嚗
0 }* [$ ^" @ {time 其閮& A+ Y5 A2 U1 s" U
dd 其銴鋆踝敺if OF
$ D5 G+ B3 v5 t: r# W4 w. N1 ]+ {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; @7 U4 K/ T! Z' o, b- w6 p
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
* H* T; I0 V: _2 o+ P* b鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
8 Q0 `9 K) Q% W4 l豢頞憭扯蝖殷憭甈⊥葫閰血撟喳7 R. N8 n$ ^ F# ~1 u
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭' n8 I* T/ y7 ~3 _0 e8 o
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皜祈岫摰閮敺芷 /home2/test2 [) Y5 O! z8 o
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虫蝔格寞:
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皜祈岫蝖祉霈摨:
9 C4 b+ E1 p. G8 dhdparm -t /dev/sdb+ Y6 `! B: R5 y( a1 i: \+ o
& k8 Z$ C3 r: e" }5 X) T8 p/dev/sdb: (雿輻禿aid0摨血翰)
/ U$ O7 @3 ^# h# @- {$ n H! D 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)& J% M8 O/ t2 ?1 M
/dev/sdb:
- p8 W9 @$ l5 S0 a0 N6 r% ~/ j! N5 `9 {Timing buffered disk reads: 546 MB in 3.01 seconds = 181.43 MB/sec
- C0 w% ?7 y( e1 {/ X+ e: E! n皜祈岫蝖祉撖怠仿摨:* R( d" _. Z) B+ D# B( J
hdparm -t --direct /dev/sdb8 [( _. a1 d% q4 T! }
9 Q5 b8 b4 `" V$ j3 C/ j/dev/sdb: (雿輻禿aid0摨血翰)
8 h" R0 t8 k/ K( M b Timing O_DIRECT disk reads: 1326 MB in 3.29 seconds = 402.57 MB/sec
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* z& e3 o/ P1 g7 b: X7 `1 R/dev/sdb: (敺靘寞LVM摨行)
* g3 ^1 Z5 d% I; _) t* m Timing O_DIRECT disk reads: 560 MB in 3.00 seconds = 186.36 MB/sec# m/ L: H5 a* i+ o* h$ m/ a5 l
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血皜祈岫 /dev/sda SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝( A/ K$ e* A0 m5 H9 C% g# n% N
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潸” 2016-1-2 20:13:26
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