砍敺 IT_man 2017-3-21 22:08 蝺刻摩 4 l- i* [( h' j
# O' r: l W+ a: c7 j0 Y- U { : http://linux.vbird.org/linux_basic/0230filesystem.php#parted http://blog.yam.com/wesley1981/article/16596463 賊隞 fstab, findfs, mount blkid. x f0 K" q' G
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
9 e' `2 ]3 H* G7 Yformat 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:
4 V+ V4 O, l9 G, b, I- O/dev/sdb1 /home2 ext4 defaults 1 1
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/ r& _4 l* S8 x; j6 |# O+ rparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
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3 d0 _% G- n& i& j* 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" \0 q* C8 U/ j& t+ R8 C5 ]
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& ?" b! O1 r$ H. i) oparted 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]3 A5 d% k$ U! Z4 f
賊賂
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啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯5 b" J! e) f& _3 U" W3 K" `
憿舐內莎print
( P3 Q8 Q0 M/ m5 |/ E$ @ 芷文莎rm [partition]) ]/ l* X l% Q" k3 T( V" b
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寞銝:7 b I0 m; Z6 j; G/ K% X1 C
(parted) mkpart primary 0 100% (primary皰artition name)
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寞鈭:% c2 h1 p& B" E9 C$ w
Partition name? []? 30T_part# T y! d- r4 p: o) q0 }8 y; m5 m
File system type? [ext2]? ext2 (ext4銝霅血)
+ a0 [: `6 X& OStart? 0B or 0%
7 u# P$ ?; v; dEnd? 30TB or 100%
1 \6 i/ q% B5 s( S# m+ {Warning: You requested a partition from 0.00B to 30.0TB.7 N' a# G. U0 P: y) p
The closest location we can manage is 17.4kB to 30.0TB.+ L7 _! E4 a8 Y' R1 L# f# w
Is this still acceptable to you?
4 {$ }, e2 F6 R1 N' c: ^2 ~Yes/No? Yes
G+ x: u3 `7 SWarning: The resulting partition is not properly aligned for best performance.
3 W- j) }3 h1 lIgnore/Cancel?
/ O: [( J6 a4 O- s+ ?. c w雿輻牠xt2撠曹銝餈啗郎% s% T8 n; U6 A6 L) W5 M# V& `
mkfs -t ext4 /dev/sdb1 ===> format% W! C9 }* d. x4 k. m! L9 ~) R; A& h, ~& x
ERROR:
1 f; _, Y- M- emkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
. v9 e/ p/ l# J8 ?& s- k using a blocksize of 4096- b+ Z8 _9 }0 C& r2 {/ o- e
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format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit6 n* ], t/ A/ U. f4 D9 e
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca31 z- g9 U$ X' }8 O$ ?
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz! F/ I' M* o s2 O ?9 t% T9 a x
cd /usr/local/src/e2fsprogs-1.42.7
" p6 S1 {$ q( n& G7 bmkdir build
3 a! U2 ^5 s$ v% K' Q* o4 Kcd build
; p. x$ S- J5 J7 @5 ]5 V ../configure# B4 B! A3 U L% C& o7 w
make" F1 a! E$ L- {8 s& l5 V$ u# Y! q
make install# Z5 a8 e: {8 K, u9 O
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
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This filesystem will be automatically checked every 27 mounts or
k7 D6 N; k0 s180 days, whichever comes first. Use tune2fs -c or -i to override.) Z8 v; m3 `2 R8 ]) @
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)) q) Z) V1 Z. D# t5 J( R
/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), g* G7 X, Q8 B) F4 f" \2 t7 {, s
mount /home2
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8 S; {4 b3 l0 J; G F5 Y1 k=======================================================================: O! f3 X/ {( |) B$ c; E7 z
c* Z4 {; r+ @[蝖祉皜祈岫]1.! @' U' {) H$ d/ K- N
Linux蝖祉撖怠仿摨行葫閰衣隞:
! ~+ P J( O) o+ X#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" _4 A! b$ g& ]# V m' ~
1000000+0 records in
5 W' u. |( f5 b. k1000000+0 records out- i7 ~8 v( V( G9 _8 n
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s/ R' H& X+ Q0 G$ a7 R* @2 p0 r
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real 0m3.590s* ~2 C7 `9 Q- d" C- K% d
user 0m0.130s; ]4 u! C) U5 L. \2 N4 t& X
sys 0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:9 @' m. a, y# y' a- S
#time dd if=/home2/test of=/dev/null bs=2k' h1 G6 R; v4 D, }' G+ e
1000000+0 records in D' `, W) o/ t5 V& Q( m
1000000+0 records out$ b0 f# W5 z) j
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s) ~% F+ A6 p- P6 n9 }* |8 |0 ?
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real 0m0.954s
+ c6 {2 @4 U( `1 l: X, g1 fuser 0m0.083s
6 w' a" V7 H7 h, H$ Ysys 0m0.868s
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/ H/ a4 `. q1 ^/ n# ]$ ]閫嚗2 k; X! U+ z6 l' W1 G! M; ?4 w7 }4 ?
time 其閮, k/ Y8 a' t2 I
dd 其銴鋆踝敺if OF/ s. O1 S( }3 K
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! ~& x" U% G8 D5 q9 N: {
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
' O. ?; v4 ~% Z: U鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦9 j* V0 p8 S; [) T6 b
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
& G6 H, |, c8 D4 p U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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8 v* V" b' q% e* J" A皜祈岫蝖祉霈摨:# H! u0 r5 j n! c2 @* }
hdparm -t /dev/sdb3 V6 ?+ R; ~8 \' L7 W9 `
* d% }& V- C6 v5 Q5 z/dev/sdb: (雿輻禿aid0摨血翰)
. g* A5 M6 z3 z$ ^3 x% K. ? 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)
3 B1 d4 |' l& C \( Z. q" F% W/dev/sdb:
8 N6 g* ?* Z9 Y4 iTiming buffered disk reads: 546 MB in 3.01 seconds = 181.43 MB/sec) _6 w& \+ |8 W4 u- }4 h
皜祈岫蝖祉撖怠仿摨:
. z! K. H4 T3 g hdparm -t --direct /dev/sdb9 G, R' R5 m% r
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/dev/sdb: (雿輻禿aid0摨血翰)
5 R8 c. F' E* F Timing O_DIRECT disk reads: 1326 MB in 3.29 seconds = 402.57 MB/sec9 _0 b/ r+ ~/ ~ W* c: Y
) w# `& s1 `3 k/ i5 i/dev/sdb: (敺靘寞LVM摨行)
3 _9 Z; V2 _) O% f2 g" U/ \% s 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3 k! l4 C' i8 `4 K3 b
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潸” 2016-1-2 20:13:26
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