砍敺 IT_man 2017-3-21 22:08 蝺刻摩
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& i {8 d( E% k : http://linux.vbird.org/linux_basic/0230filesystem.php#parted http://blog.yam.com/wesley1981/article/16596463 賊隞 fstab, findfs, mount blkid. x; Y) h7 }) m5 E! \/ V5 @0 ?+ y% [
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html; h* E' H8 A/ _. C6 P; M
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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7 h$ R1 H( g8 c: d- E啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
8 J; w" N' H5 R+ G4 E* ]" n* }/ @6 ]/dev/sdb1 /home2 ext4 defaults 1 1' I4 g, o* t$ J$ a. e
m2 }$ A. m& r. X$ s# ` hparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/2 n1 ?3 b9 l c1 k
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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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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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" q* j F, @4 B# [parted [鋆蝵孫 [隞 [窟]; U* o# j3 J. a
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隞文踝: v" X% ]6 U) c) q5 }5 n) N! r1 e2 v
啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
9 O+ O7 N' G% P4 G; a 憿舐內莎print2 e; j i1 T+ e w p- E
芷文莎rm [partition]
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(parted) mkpart primary 0 100% (primary皰artition name)" k$ j/ h- U: {7 n5 F3 e
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Partition name? []? 30T_part
0 |4 y& d |$ MFile system type? [ext2]? ext2 (ext4銝霅血)% l8 N3 p5 d8 A* {2 W7 n; ?4 a
Start? 0B or 0%
_2 ~9 {5 ^* a( n0 pEnd? 30TB or 100%8 t8 o+ N- U. ?" v* _
Warning: You requested a partition from 0.00B to 30.0TB.
6 _0 W- a5 t0 f0 H! }The closest location we can manage is 17.4kB to 30.0TB.
+ @8 z) B! U' p( eIs this still acceptable to you?2 b6 }: F, ]" n" d( c
Yes/No? Yes
4 Q6 i5 `+ N6 O- sWarning: The resulting partition is not properly aligned for best performance.
. d+ K/ L* Y' C: Z5 ^Ignore/Cancel?
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mkfs -t ext4 /dev/sdb1 ===> format0 {2 @- i0 L5 \2 D! s
ERROR:' G/ u) f$ O$ H$ c+ Q- X* ^2 [% V/ `
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits* g9 o5 ]- i) K4 [2 F5 g; m4 D" y
using a blocksize of 40963 F+ }6 R* Q7 G' e0 Q' R
SOL:
# }) p& ~. S7 M$ H0 G. eformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit6 Y6 G8 `5 f" O* |/ Y0 k+ e# B
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3% r7 W; _$ Z2 v s: [1 t
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
/ t/ D. ?; W! g! d) ~ wcd /usr/local/src/e2fsprogs-1.42.7
9 z$ I/ M: p+ c) s7 |1 g+ {& W: S, G. umkdir build+ o6 x* i6 s5 G" j+ b1 l
cd build
! O5 @: v4 _7 @1 @! Z/ j8 V9 u ../configure7 z! S D' S! b& P+ K7 W% @ [: ?
make
4 ]4 w# r/ Q) K. M4 _- _- ? t make install. Z0 f: K# k8 q
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
1 _7 B& Q# n9 g: V1 {% m憿舐內銝:
6 _1 A0 T. I6 nThis filesystem will be automatically checked every 27 mounts or
" A/ d8 U& O* e7 \ q- @& P180 days, whichever comes first. Use tune2fs -c or -i to override.
7 b7 d0 g0 u9 a6 Y# J/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)& f+ a. w, ]" ?" w5 G' H
/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)
9 F$ T0 E% q emount /home23 }. r P/ w/ h( T2 _; Q" P
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! T" K3 L" |# v7 J, d7 P=======================================================================
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[蝖祉皜祈岫]1.
0 f+ v% X- Q9 [6 I- }Linux蝖祉撖怠仿摨行葫閰衣隞:
9 F$ a( m) e6 b' l. }: y#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
: z) U4 Z, [, ]# o1000000+0 records in
2 v5 S' G0 C% g6 w. D, ~0 @" X$ m1000000+0 records out
. ]! U5 E! P6 e* T8 K: N) J2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
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real 0m3.590s4 W! @& ]6 ^' X/ a! j7 l; ?" Y
user 0m0.130s
% l8 `3 | G ~; k- \sys 0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:
# n- w% f$ r1 ^8 b! N+ a- d8 A#time dd if=/home2/test of=/dev/null bs=2k
) M$ U0 A9 a; c6 d/ a. S* D: k" v1000000+0 records in* o3 L5 G# ]! K3 @
1000000+0 records out
& ~; \' R' k) l3 P* B) j! T2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s2 G# W8 e! i, K' k" A. \
8 G( \6 F6 Q/ M& ~real 0m0.954s
0 _" ]9 I! A7 wuser 0m0.083s& m) ?- X: @6 J# }
sys 0m0.868s
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閫嚗
& |& ~* r/ `, S1 O9 Ptime 其閮" @4 J) [5 [3 c1 i
dd 其銴鋆踝敺if OF
. a7 I: L. V' e1 Yif=/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, I0 L1 K" [' A& D
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
- v, Z) w4 B9 Y! D# p2 {鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
# y3 i' c+ S7 x豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
# r {* o' c& i. b望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭7 Y: X2 V0 R% z4 U9 \" ~
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皜祈岫摰閮敺芷 /home2/test
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4 S% i7 a, k& T; R虫蝔格寞:
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皜祈岫蝖祉霈摨:* S& N9 s' m- z+ u" b# D
hdparm -t /dev/sdb; z2 S# |2 d- [3 M, @
0 ?- S& F& b7 ~; D* ^2 ]' D4 T% m5 A/dev/sdb: (雿輻禿aid0摨血翰)
% y8 ?5 j% B1 K, @ Timing buffered disk reads: 1732 MB in 3.00 seconds = 576.98 MB/sec4 x3 g* h" e6 n6 ~. O: I* D
3 w0 ?4 f$ K/ H/dev/sdb: (敺靘寞LVM摨行)$ X* o% m( x+ D- L4 t
/dev/sdb:
1 F2 |) [. L2 t2 t1 G; WTiming buffered disk reads: 546 MB in 3.01 seconds = 181.43 MB/sec
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hdparm -t --direct /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰): ]% \! V: T! G7 Q- u
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 [: V g; q0 ?
Timing O_DIRECT disk reads: 560 MB in 3.00 seconds = 186.36 MB/sec
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. g9 P: I5 | k. s# I8 S血皜祈岫 /dev/sda SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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