砍敺 IT_man 2017-3-21 22:08 蝺刻摩 # C: ?' u- [9 q% x
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: http://linux.vbird.org/linux_basic/0230filesystem.php#parted http://blog.yam.com/wesley1981/article/16596463 賊隞 fstab, findfs, mount blkid
0 T8 z( S6 w# U: Ifdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html. }* q. ?; S6 I7 a
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
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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 h) c2 f$ ^& E# c: h1 x; p6 f' `/dev/sdb1 /home2 ext4 defaults 1 1* i( c3 B1 [& |( K4 [
, R. d" y$ M+ \5 s" F8 Pparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/6 R& ]" V$ V( a: H
( ?, O: e' L7 L; z$ Sfdisk 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- Z9 ]& P( i: n. }" @9 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
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parted [鋆蝵孫 [隞 [窟], H6 L8 e" T5 n# U
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隞文踝
, s' e0 r( U" K4 T 啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯: v* k" Q) T/ J2 L& O1 O
憿舐內莎print* E* q: T E9 C' |4 U$ m
芷文莎rm [partition]
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(parted) mkpart primary 0 100% (primary皰artition name)
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Partition name? []? 30T_part
7 ]# G. W; I' e" N1 yFile system type? [ext2]? ext2 (ext4銝霅血)
, l; a& O# }5 M3 k# @' KStart? 0B or 0%8 K B( t, l. q: ?$ P2 F
End? 30TB or 100%/ |# n+ \+ n3 Z! P8 K
Warning: You requested a partition from 0.00B to 30.0TB.9 w; z: Q1 N5 S T
The closest location we can manage is 17.4kB to 30.0TB.
6 u* N/ F9 g1 W/ w2 q9 qIs this still acceptable to you?
3 c$ I6 t1 w/ S( W5 V( H* A+ bYes/No? Yes& |# l2 O& R% {! |# e4 u& B: v4 K
Warning: The resulting partition is not properly aligned for best performance.
% {3 Z8 ]1 }5 l1 NIgnore/Cancel?* x+ d( F' ?6 ~0 J; U
雿輻牠xt2撠曹銝餈啗郎
`8 I1 z+ u) ]: B2 Wmkfs -t ext4 /dev/sdb1 ===> format
$ ]2 H3 @9 D }+ ]. ^" a% U* g7 bERROR:
" \1 y/ a$ s: I7 @ Vmkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
( k: Z3 h$ j/ P9 ^& T using a blocksize of 4096$ ]6 [1 T; \8 O7 B
SOL: 6 i, `8 ?* E& `( \, C% |, e% ?
format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
6 Y1 Y& D" ]/ E0 x/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
% l. I" Y6 x4 b6 P+ ^/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz& o7 X% n1 m3 h; o4 f
cd /usr/local/src/e2fsprogs-1.42.7
( ^* _/ N) t# x4 t, k( Y5 Bmkdir build% r* e7 I; N0 F5 o+ U8 B% A5 [) x* ~
cd build" R7 y$ H3 o3 }9 x" } ^
../configure* Y9 `$ B2 y+ _- |9 g! S5 c
make
" P, y1 X+ ]/ [/ z, u% @2 c make install
! e4 T$ C: \ ~mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb14 z, Z' b$ T0 a4 ^2 f+ `
憿舐內銝:
+ W8 i- c8 f" W0 p6 FThis filesystem will be automatically checked every 27 mounts or/ g# m. P8 t2 B% R3 A G& g, H% e
180 days, whichever comes first. Use tune2fs -c or -i to override.0 Z0 _( @4 v) {: Z9 t' r2 z
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E) S# e4 P& x0 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)
! w5 r9 Z2 i; R8 {/ Tmount /home2/ t8 n3 l/ L) e1 D
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=======================================================================
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8 ?7 f: R" u8 [. I, ^[蝖祉皜祈岫]1.
' Z4 \$ X2 O/ Y4 wLinux蝖祉撖怠仿摨行葫閰衣隞:
' n. i' D$ g! q1 {#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" X# ~2 o3 \/ r% g8 _, L
1000000+0 records in
# \; c" \- R9 z1000000+0 records out
9 t5 x/ J% d" k) I2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s3 ~2 r) J4 n* P, p9 u6 E, X9 l
0 o! `* A3 o2 R; ^real 0m3.590s( u ^4 \4 P5 Z& v/ M
user 0m0.130s# C: z. |/ C1 S; \& N
sys 0m3.455s' H* B1 L( G1 t. s, k- J2 A
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- T' Y1 C# J( m5 n7 q; DLinux蝖祉霈摨行葫閰衣隞:
& x- j0 u( J+ Y5 d5 A8 v" @+ a#time dd if=/home2/test of=/dev/null bs=2k
- k/ I7 {9 N$ E V1000000+0 records in) m2 U+ d! Q- x
1000000+0 records out& ?/ F6 K5 m7 L: N
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s& b) H' J. l( o$ d
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real 0m0.954s
h; ^2 V! o. w+ Luser 0m0.083s; ]0 \* l1 M9 i2 s
sys 0m0.868s
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time 其閮* j. u, Y5 C" ?, H _ I
dd 其銴鋆踝敺if OF
7 y: U' H% ]. ]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% D! V1 G$ m2 Z ^5 x
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
8 h8 K1 }5 }) c6 o. `! D3 ~鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦( J I! P6 c1 A" d: n! {
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
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6 g; E) s' g# D8 V" E f皜祈岫摰閮敺芷 /home2/test
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4 p" R, b7 t* k! J9 e+ k虫蝔格寞:3 N% W+ M8 D' {# y- ?4 L: v2 P0 z8 C% j
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皜祈岫蝖祉霈摨:( ?1 G* k E1 M" l$ R
hdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)% q& b, \; D; G) C
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)
/ z- S" s5 A1 T @# }% P/dev/sdb:
4 M* J) H4 m1 k3 ?1 @5 H3 W$ {% ETiming buffered disk reads: 546 MB in 3.01 seconds = 181.43 MB/sec
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hdparm -t --direct /dev/sdb# Q4 ^% B d% n& O& M
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/dev/sdb: (雿輻禿aid0摨血翰)
3 d$ P8 S( x- K; f5 V9 | Timing O_DIRECT disk reads: 1326 MB in 3.29 seconds = 402.57 MB/sec
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- I5 q& I. j) X; g5 d/dev/sdb: (敺靘寞LVM摨行)
0 p: ~9 T9 S2 i 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
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潸” 2016-1-2 20:13:26
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