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 ]$ a+ M; }, C
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
3 J4 s# ] C6 G! |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" s$ D6 J# O0 J- B6 m
6 `) c1 [* p8 H& `1 m- z啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵: T) _9 o1 G1 @! Q
/dev/sdb1 /home2 ext4 defaults 1 12 d/ h& E1 d Q; L; p- ]
\/ e/ E/ i) n% eparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
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. N4 _# S `! U, Jfdisk 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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6 p$ p" o2 a% b& g0 z* sparted [鋆蝵孫 [隞 [窟]- F. g1 Z$ k& h" H8 A
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隞文踝4 n1 r& U7 E# S" n4 z
啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯! b. ?' d! B' X j# r* a
憿舐內莎print
, G8 l f) g9 V; p6 k, q8 e 芷文莎rm [partition]
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1 {3 F! r: Q% g4 P) V% m/ ?& J寞銝:
/ }, d4 |3 }8 q# J3 k, M(parted) mkpart primary 0 100% (primary皰artition name)+ [0 M' }; N v# ^2 A
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" o% P; G' _9 B6 l ^5 X' Z1 q1 YPartition name? []? 30T_part
4 J% M6 L4 T. p/ ~File system type? [ext2]? ext2 (ext4銝霅血)7 V) a9 L! \& E& s+ Z
Start? 0B or 0%
; y* j5 T9 f7 {! Z. f+ ^End? 30TB or 100%7 K, P. o5 @7 r& p- _, H
Warning: You requested a partition from 0.00B to 30.0TB.! g" H* W |$ {+ |4 F/ |
The closest location we can manage is 17.4kB to 30.0TB., F; v" O K1 a$ O5 a: {
Is this still acceptable to you? Y7 K! d1 ^' u* u9 |1 L
Yes/No? Yes2 s6 @ \/ v# Y, x
Warning: The resulting partition is not properly aligned for best performance.
( t. |0 z* K) f- @. D4 D) \/ I3 JIgnore/Cancel?
( U/ F% Z; Q# d7 B9 h& v雿輻牠xt2撠曹銝餈啗郎
- l% }* W2 m: }7 Omkfs -t ext4 /dev/sdb1 ===> format- B8 l. R/ X+ i0 n# t- l/ k
ERROR:2 `: X4 [0 A/ W# Y6 f
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
4 _7 b- @; _8 a J using a blocksize of 40967 u& {- ?6 F, r0 Z
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format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit4 D* `+ c7 u- P! v& _, O# o
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
) a& e6 _( ~* [3 G* J/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
( w% t5 M, a1 b3 T* Ccd /usr/local/src/e2fsprogs-1.42.77 O d% Q0 ?' o3 N
mkdir build l$ c/ M2 ~1 U
cd build
( x, ]8 ?/ G/ v r ../configure
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make install6 {) u2 \" ?2 z
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
9 f0 _6 {8 H! j1 A+ N$ _憿舐內銝:
: l% x% o8 o0 NThis filesystem will be automatically checked every 27 mounts or
- P; f: `2 l7 t9 c- [- k180 days, whichever comes first. Use tune2fs -c or -i to override.
: I. g# W$ Y6 ]3 K4 `' _/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)/ b- p; x% r# v$ ~% E
/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)' l# q8 X( p$ B- \1 C/ U
mount /home2- K1 t2 j8 i& R
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[蝖祉皜祈岫]1.
$ C8 R% X( K0 j( K4 ?Linux蝖祉撖怠仿摨行葫閰衣隞:
2 H Z* ]4 }, s# i& @0 }/ l) Q* g#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
- D1 [/ c# Q0 |! d8 T: ~& H6 E% r1000000+0 records in
/ O% }5 R2 ]' ?* x1000000+0 records out \/ A" W" Q" F; ]9 z
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
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& h# e% E+ T8 a5 s8 { @8 Y0 ?real 0m3.590s, c- F0 S4 O6 ]+ ?* f
user 0m0.130s
$ F! Z2 G2 ?3 A2 p, u+ Rsys 0m3.455s5 V0 S3 ]% t8 r/ G
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#time dd if=/home2/test of=/dev/null bs=2k
G. Y. L, }8 s' y2 u9 D1000000+0 records in
# R) u: [2 l7 z' z1000000+0 records out
* H- X; V- g: {: n2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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X6 {6 Y! _% a A! Oreal 0m0.954s7 v; ]! y6 o: B* Z0 `
user 0m0.083s$ N8 D+ v. f5 c) X$ W
sys 0m0.868s
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time 其閮# z2 b h: t- i% n# y, P
dd 其銴鋆踝敺if OF
* p6 B* L- [3 J2 S$ w3 kif=/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- j R9 x5 B2 }) v8 A
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.; k8 N- ]' e& n0 v1 {# q
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦1 {6 N9 u9 T7 O- B
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
( Q7 p# a3 q, B" T望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭4 v5 W5 y* `7 O. G+ t) I- u2 @
! u6 Q+ u! [2 y1 b- [$ v皜祈岫摰閮敺芷 /home2/test
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! ]& W L) l( c7 V: b; i; H虫蝔格寞:
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皜祈岫蝖祉霈摨:4 X5 x- ~- ~3 o% @: [8 h. H
hdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)
; G G( W6 _8 p+ k; g% I+ S& d Timing buffered disk reads: 1732 MB in 3.00 seconds = 576.98 MB/sec
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7 z* S/ {/ L; j2 c, x3 J7 [& K8 \/dev/sdb: (敺靘寞LVM摨行)7 {" x7 ]. C6 _( P4 _
/dev/sdb:
2 l* m3 n( E* t+ D( fTiming buffered disk reads: 546 MB in 3.01 seconds = 181.43 MB/sec5 H. ?5 D" n( E$ y- _8 F9 b7 e
皜祈岫蝖祉撖怠仿摨:
5 K2 g m- E$ y! }$ o hdparm -t --direct /dev/sdb) [9 h8 q# i# h
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/dev/sdb: (雿輻禿aid0摨血翰)
/ b6 f* l5 p' Z3 J- d Timing O_DIRECT disk reads: 1326 MB in 3.29 seconds = 402.57 MB/sec( Q3 {+ c8 Y; a. L
* S9 P( R( d4 m/dev/sdb: (敺靘寞LVM摨行)
* V- Q8 H& P0 n0 s Timing O_DIRECT disk reads: 560 MB in 3.00 seconds = 186.36 MB/sec# Q, l! E. @6 s: R/ G5 q) ^9 D2 J& U
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4 X+ K$ x6 N$ ?5 G血皜祈岫 /dev/sda SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝% x$ O8 W" a( `5 h$ o$ m9 Y0 d. O
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潸” 2016-1-2 20:13:26
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