砍敺 IT_man 2017-3-21 22:08 蝺刻摩 % t1 `8 s& a5 X( _( {. F- m
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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
3 _2 P% W! g. @1 [, R6 C, \fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html1 B6 n& M9 ~* s4 j) |# Z
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:$ l, R& P8 X& s2 Y8 n
/dev/sdb1 /home2 ext4 defaults 1 1
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7 p$ L, L, D, o5 y; T, Qparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/+ [6 z9 I- j1 V7 [3 H. g
4 L8 p+ E, @. ?6 S- ifdisk 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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3 S: d. i7 L$ u9 \ U5 m5 qparted 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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" H# Z5 t) F) _; X/ j2 s3 ^ 啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
- }4 Z7 k( P0 \- n' @& x. Q 憿舐內莎print' {8 F) W4 D; | z: W0 h
芷文莎rm [partition]
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3 m5 D+ \, I) i2 g寞銝:
! J: W. P0 J$ E2 E(parted) mkpart primary 0 100% (primary皰artition name)
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2 q! n8 }3 g' P# W& ^" V! L0 ^寞鈭:
" _4 v8 X0 h4 X4 z+ h7 S tPartition name? []? 30T_part
% `- \' Q6 R' J# v8 PFile system type? [ext2]? ext2 (ext4銝霅血)' I$ C, `, ~: q" f) D- B
Start? 0B or 0%9 v8 \/ g. g# p# o3 n
End? 30TB or 100%8 ] p& ]. W5 \
Warning: You requested a partition from 0.00B to 30.0TB.
/ I7 `3 |) R0 o4 r% k# i' h6 `9 P* WThe closest location we can manage is 17.4kB to 30.0TB.
0 K2 Z; q2 r# y, HIs this still acceptable to you?! X) \3 e8 t" r1 h
Yes/No? Yes
- t, r' l- E' Z5 {9 b: z" tWarning: The resulting partition is not properly aligned for best performance.4 u. g# p. {! T: l& `& d2 o
Ignore/Cancel?
! O* s8 m! H6 M! h: s: |* ?雿輻牠xt2撠曹銝餈啗郎
' v# H( ^6 |+ h! e; r: t; `: H, b/ @mkfs -t ext4 /dev/sdb1 ===> format' T7 g4 l k& X$ u# b' t. i
ERROR:/ ]# g3 P1 R$ j- R; @. i" m
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
3 b- P- i M( b* O* d! p$ }, K- _ using a blocksize of 40969 L8 X. T% C3 F/ o8 Z
SOL:
' Y3 i2 @ J% y: C3 m) uformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
( n# ~* Y2 o" c( l& n5 P/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca39 W( S* ]2 l- a+ Z6 r
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
; c4 b7 I4 u; ]! _2 [4 ncd /usr/local/src/e2fsprogs-1.42.7& \- Q0 L1 x1 g* ? }" ~
mkdir build
% z5 t6 ` J+ H! a9 U N$ gcd build5 w3 g* y) i9 o( t; Y: D
../configure- t) n7 Y; R$ \- d7 y, N6 d% s- ?
make$ Q8 U* w9 s i
make install
5 f9 Q: q: [8 D( f0 _mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
7 q+ g& D7 L- ^$ z% h憿舐內銝:. P; u1 B, _9 K" D' T& m
This filesystem will be automatically checked every 27 mounts or
8 S P7 W, w8 @7 G* }+ Q9 P5 c180 days, whichever comes first. Use tune2fs -c or -i to override.
. ^+ `! k: J/ l- @' m/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
$ S: }! h& N) j2 a- l5 t" N/ a. z7 @ M/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)6 ~, r# q% w& U$ Q- X3 a
mount /home2
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* ?* C- J* u' p; t8 M; `1 R+ s2 C=======================================================================+ h, S$ l2 d' M- i
; I8 M6 _. J* _; @[蝖祉皜祈岫]1.
6 B: C' B" x2 Z, W& K: Z' V v: q! uLinux蝖祉撖怠仿摨行葫閰衣隞:2 Q/ w" k' h0 i' t. H
#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
) I* Y, `. _, d, P1000000+0 records in
/ t% F) k# D5 B7 ^+ M7 c. Q( ~1000000+0 records out6 W4 C. l# p# x! s: U
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
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real 0m3.590s
* C. M: G, N* U7 Z: g! O3 Zuser 0m0.130s
0 a1 G4 K; |5 C& ?sys 0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:
* i2 O. e/ p' \) O( m& Y; W. S2 Y#time dd if=/home2/test of=/dev/null bs=2k
1 S. s; U1 l. k; N! A1000000+0 records in5 O' R2 k) ~1 G9 i0 }' ^+ O% d
1000000+0 records out# O( r- b9 |: O _
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s- f% v* e+ H" J
J/ s! Q4 ?' t& x" g0 nreal 0m0.954s1 W7 H0 m( G% T$ D6 r1 N
user 0m0.083s
- F) A5 F! M1 C# L8 R- Xsys 0m0.868s
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2 e' i0 q9 l9 A; X) s2 a$ @time 其閮
- t0 ^" a6 |( k7 l/ T% A& n0 `dd 其銴鋆踝敺if OF9 r/ R; K1 l6 f* t0 Y( f' f4 M
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
+ u! z1 E. x* Q |+ v* {bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
; e( E/ `5 e! J3 {! M9 N* s鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
+ w2 L# Q: }8 u0 ^3 a. a. p豢頞憭扯蝖殷憭甈⊥葫閰血撟喳. D- g+ F8 d, \! d( I, T
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭
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皜祈岫摰閮敺芷 /home2/test
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虫蝔格寞:
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皜祈岫蝖祉霈摨:# a* p: L5 }/ z* `2 a" @! j
hdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)) f- E. T; M* s8 i( U3 Y2 x# h
Timing buffered disk reads: 1732 MB in 3.00 seconds = 576.98 MB/sec2 r' D9 J: ? m- @8 V4 w9 G
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/dev/sdb: (敺靘寞LVM摨行)
/ a+ ~6 G7 O4 o8 t! w. t# J+ M6 s/dev/sdb:
$ T% f* w- E' m) GTiming buffered disk reads: 546 MB in 3.01 seconds = 181.43 MB/sec( [2 H+ h0 v, K9 m: X3 P
皜祈岫蝖祉撖怠仿摨:
3 Z' W& W' E) z; ^! [ hdparm -t --direct /dev/sdb- e& P' |! h! J( A5 W& \. ]
: ]; J* X* Z" B% s/dev/sdb: (雿輻禿aid0摨血翰)/ \) C3 I+ L9 A d6 Y; W6 [6 L3 H1 Q. R
Timing O_DIRECT disk reads: 1326 MB in 3.29 seconds = 402.57 MB/sec
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/dev/sdb: (敺靘寞LVM摨行)
" _1 C6 G2 i8 P& }4 M Timing O_DIRECT disk reads: 560 MB in 3.00 seconds = 186.36 MB/sec7 O7 u% ~$ v+ {) L( y- U7 t
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- C* X: ]0 l( D+ \血皜祈岫 /dev/sda SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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