砍敺 IT_man 2017-3-21 22:08 蝺刻摩
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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# S" n5 u; P4 W2 S" W# H. c0 M O- {2 O
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
4 S; Y. @/ ]% N* x% R- _" _* Oformat 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' Y: T. [- J7 R) I
; `. ?. }! e% X# a5 l% [- U8 [啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
% l( K, M: m. i" A4 T* G/dev/sdb1 /home2 ext4 defaults 1 1
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5 `, S1 c Y+ _8 O6 `/ f/ L: kparted 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
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4 u2 d: C( Q) Y ?, V- |) Iparted 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; u8 M" @( y1 H+ l: Z0 z2 O
0 h- h0 K8 E! [* ~( Kparted [鋆蝵孫 [隞 [窟]
* F5 P& R9 i$ T& L0 I% A賊賂
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啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯! ^; ^0 d2 h9 B& u( ?, `3 Q
憿舐內莎print
' u/ `/ Q# H7 t# }- N; \ 芷文莎rm [partition]
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寞銝:: R' S d6 b$ ]. v
(parted) mkpart primary 0 100% (primary皰artition name)
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b$ {9 k9 S& q( i( u, G7 f& ]寞鈭:
2 {! \* b. A1 f( y6 pPartition name? []? 30T_part
3 U9 I9 E4 v& X" p7 kFile system type? [ext2]? ext2 (ext4銝霅血)* R& w! g2 }2 P' i6 h
Start? 0B or 0%
$ M' {% q6 c6 E7 uEnd? 30TB or 100%
' `" A' d& [2 l" MWarning: You requested a partition from 0.00B to 30.0TB.9 ^: u/ z! X0 o# s G( W
The closest location we can manage is 17.4kB to 30.0TB.
8 U3 I6 ?( o/ C% ?Is this still acceptable to you?* n$ J9 B, U$ _# _3 |- r2 [: K
Yes/No? Yes; A; S& E% O7 G2 v1 G
Warning: The resulting partition is not properly aligned for best performance.
8 y1 ~7 @5 B: x, ]Ignore/Cancel?
3 f1 k* ?& E' M雿輻牠xt2撠曹銝餈啗郎
# |7 F! e$ G) @: G4 I( Cmkfs -t ext4 /dev/sdb1 ===> format; f* |0 n" ~* ]4 v% H( b( p
ERROR:2 B! V. Q& r6 h$ G. g2 h! t
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
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SOL:
- @4 H" N, W' G9 U1 v' ?format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
) I& @0 ]4 }) J$ `/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
: x' ~& e" w- i6 W# n& F; D/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz$ m; @+ T s9 ]! y
cd /usr/local/src/e2fsprogs-1.42.7
[+ k1 j% Y9 F2 h! M9 U& ~7 _mkdir build
1 T# l3 Q. H& r% ?. Q+ Dcd build8 ^5 }4 w, J! g o& _+ \2 @& E8 j( W
../configure+ O* v: A0 Q2 x5 e
make
% h( W1 c8 p: V' P7 j* z \( Q5 d make install
6 ~0 `/ S! _5 I5 E5 f' h! @mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1% X b0 u8 K* c; D7 p
憿舐內銝:
3 w1 s" M" {9 B2 aThis filesystem will be automatically checked every 27 mounts or
0 U( i' U. ]# n8 a$ t180 days, whichever comes first. Use tune2fs -c or -i to override.
0 l, t5 N$ X9 x% q% Y& e; b; g( h/ k/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
, J, D& D M# ?) d3 P6 e6 S* u0 W _/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)* j5 U3 y- T5 J" r: P
mount /home2
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=======================================================================
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6 r& t8 y; v( Q! o" b6 e% `[蝖祉皜祈岫]1.0 t5 d% u! ~& e+ D' O5 n
Linux蝖祉撖怠仿摨行葫閰衣隞:
, ^/ Z) G. }; 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 W6 q7 B. A9 H4 a* \5 c
1000000+0 records in( b, ?4 d; G, p* O: j* i
1000000+0 records out B* C: w1 s. Z* ?( H
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s+ C6 H) g+ A6 w5 J+ \8 b/ H4 e! @! q
1 U) d7 T" S9 wreal 0m3.590s/ H. w9 N# w$ J- S6 r% x" b
user 0m0.130s
/ m% q$ [( \/ k% I/ Psys 0m3.455s
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9 z. s. T# h8 u' WLinux蝖祉霈摨行葫閰衣隞:
3 t8 ^0 o1 E0 E1 Q4 Y3 f; ~. u$ h8 T#time dd if=/home2/test of=/dev/null bs=2k- n/ l9 ~+ Z1 h! c
1000000+0 records in- Q+ c, x ?1 f% R- l/ ~
1000000+0 records out
! D2 h$ Z6 B) N6 p& T8 B8 b2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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: Q/ |& ^2 a/ F( s) i+ h: nreal 0m0.954s
+ A* }7 Z Q @user 0m0.083s
' I$ {+ C+ i/ g [9 z# f; csys 0m0.868s" i5 h8 ?9 c' v9 {+ `2 Z( [
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閫嚗- o1 m2 P+ i8 i) o
time 其閮: L' b, ?. N e
dd 其銴鋆踝敺if OF1 ~, W# N3 Z0 {1 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
- C* T% @/ Y% k! P7 C6 a& `bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批., d. `5 k( p" Z% }5 `) S& X# A
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
: t# G \. w5 B' k2 B豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
) p8 [) n. w" |& Y+ ?9 M望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭7 l/ |6 s& a$ I4 s% R, R
$ j1 w1 C+ ^( p# x2 u
皜祈岫摰閮敺芷 /home2/test
# J/ _7 e7 U- ]2.
4 |0 R. g& ] s$ e6 x- K虫蝔格寞:
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hdparm -t /dev/sdb
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; {7 D& o; Q/ }' R N4 S/dev/sdb: (雿輻禿aid0摨血翰)' F5 k5 w4 E6 F: B, z
Timing buffered disk reads: 1732 MB in 3.00 seconds = 576.98 MB/sec5 g; C; F; z. Z6 f
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/dev/sdb: (敺靘寞LVM摨行)/ h$ e% ~; b0 p6 a8 M
/dev/sdb:
1 a; K* b. J Y# Q) ETiming buffered disk reads: 546 MB in 3.01 seconds = 181.43 MB/sec) |, d5 T' J5 H& Q
皜祈岫蝖祉撖怠仿摨:) s( K* j1 q* R" J+ B# c; Y0 @4 @8 S
hdparm -t --direct /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)
) |) C3 |* L, P" h: K, I 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)# `4 z% |" v4 A/ G! J, c
Timing O_DIRECT disk reads: 560 MB in 3.00 seconds = 186.36 MB/sec
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: s- f, |) E8 G血皜祈岫 /dev/sda SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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