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mkfs.xfs格式化磁盘时报/dev/mapper/xxx contains a mounted filesystem# ?$ O3 B/ m: e2 w4 J9 \
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[root@KVM mnt]# mkfs.xfs -f /dev/mapper/bigdata-cloud
: C- R3 {+ ?3 f" H/ a+ @# ]& vmkfs.xfs: /dev/mapper/bigdata-cloud contains a mounted filesystem& j, a- B/ R" j# P' \3 e$ K
Usage: mkfs.xfs
4 ^/ E: c7 Q& T/ Z& J/* blocksize */ [-b log=n|size=num]
) a1 I, F4 _ F: S5 G+ q/* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx], H3 A1 y3 \: Y6 ]" s0 r! T
/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,/ a+ o, m" ]5 Y9 z4 D
(sunit=value,swidth=value|su=num,sw=num|noalign),( t/ L1 K6 ], T/ f: J4 q8 i" ?
sectlog=n|sectsize=num
8 G+ l! A$ u& X) ? n% _" {; X/* force overwrite */ [-f]# G5 u: A$ m$ A+ Z5 W6 O
/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,
6 E* @, J) y- C9 B% S/ g, W projid32bit=0|1]" \. G% j+ j/ |
/* no discard */ [-K]( w# ^* _5 ^; Q8 L
/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n2 s$ s& y3 A: M4 D6 [7 e7 P
sunit=value|su=num,sectlog=n|sectsize=num,8 B5 ^, `1 z$ m3 J2 H
lazy-count=0|1]- A7 G" H I3 _8 {
/* label */ [-L label (maximum 12 characters)]
- o! v" H! i4 k$ L! A/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]+ X6 F8 K7 f1 n- g/ U( q
/* no-op info only */ [-N]9 x: a3 h. X7 ?& ^' ]$ s' \* [2 z
/* prototype file */ [-p fname]/ Y8 D! q5 Q7 {8 a' @$ _8 K) F1 z
/* quiet */ [-q]
2 `$ F. X6 m" M$ N/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]
( r7 f, ~$ V; e) ]( u+ `) N/* sectorsize */ [-s log=n|size=num]6 d9 s8 J9 L# `+ X
/* version */ [-V]$ O1 u/ k, Q7 B( \3 ^3 N a/ ]
devicename
& \/ s" t1 G! M<devicename> is required unless -d name=xxx is given.
3 X Y* N) T0 X<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),% w6 e- u! j1 O$ P1 `" P
xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).
5 I; S$ \% \. U+ `" h<value> is xxx (512 byte blocks).
4 [8 o* v9 s' T; t
0 i5 ^0 n/ i! ~6 F: \& k" v' C i说明我们占用了这个设备，设备在使用状态：8 S- ^" W: a* p9 v4 N1 Y* V) L
$ g1 d6 o9 [) v7 J# W[root@KVM mnt]# cd ..
. C9 W, l$ n2 E切换到其他目录：' g) u% k9 w( M9 R. i& v. X
保证磁盘没有buzy状态4 o6 ^. i9 X- X. c" j" A3 \1 v
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[root@KVM /]# mkfs.xfs -f /dev/mapper/bigdata-cloud
! r3 u. @& Z2 W- mmkfs.xfs: /dev/mapper/bigdata-cloud contains a mounted filesystem
0 e3 p! o- `9 K( XUsage: mkfs.xfs
u& _" _. x% P( f k/* blocksize */ [-b log=n|size=num]
" I4 q$ j1 A6 w, j/* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx]
6 H$ u8 k4 ]: z; E* K& s/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,
2 N, f$ W1 N3 m# b: u. l (sunit=value,swidth=value|su=num,sw=num|noalign),
4 l- I4 T, N8 I& q$ l sectlog=n|sectsize=num
4 b% R. q% q" c/ [/* force overwrite */ [-f]
' D+ Z. @" P/ I2 H2 I1 g/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,
8 P8 R9 _$ l0 B# H9 { ^4 B projid32bit=0|1]
; Y6 J; B7 e- e( m9 B: T( V/* no discard */ [-K]
0 L0 I* [% A& q& _" P/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n- S7 M& V4 w/ K7 ~. D q/ f, H4 z
sunit=value|su=num,sectlog=n|sectsize=num,' K* B4 S0 |5 W) J, f
lazy-count=0|1]) l) O6 T) N$ s- M% {' C
/* label */ [-L label (maximum 12 characters)]
1 E O. m+ j* n/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]. [* n, o" Y! a
/* no-op info only */ [-N]
$ t2 ~/ F4 I3 Y J; K. ?/* prototype file */ [-p fname]% c; \# u) @7 J) A& D( K4 C' c: {
/* quiet */ [-q]
3 |! g" G3 V% ?4 c8 Y/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]7 u R- s" S' v4 z
/* sectorsize */ [-s log=n|size=num]$ o+ d8 H2 T; b4 o8 z4 }0 _# h# s. t
/* version */ [-V]
5 r# ]: j& f5 p1 j! l devicename
/ q5 t" ^3 B* @<devicename> is required unless -d name=xxx is given.7 k4 P2 p( u( S6 v2 M2 w
<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),% |6 q+ H8 h1 r i4 L0 b1 E2 J
xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).
/ [7 o( U% H& r5 F6 ~" c7 b" q<value> is xxx (512 byte blocks).( z* Q5 d$ E4 s/ n8 _* b
[root@KVM /]# mkfs.xfs -f /dev/mapper/bigdata-cloud
- r2 o( g0 g5 `2 amkfs.xfs: /dev/mapper/bigdata-cloud contains a mounted filesystem
& C( K( {( w7 E; \Usage: mkfs.xfs
; G" y" v4 @! D" {: ^1 ~0 P! L/* blocksize */ [-b log=n|size=num]7 {- V1 Y9 C, |+ g( q
/* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx]6 b( E# y5 U5 f ?! W, u* j
/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,
! P- |1 s) ~* a5 [/ o7 ^& a (sunit=value,swidth=value|su=num,sw=num|noalign),. u& W, }, W6 C' @& r4 I4 q) R: i
sectlog=n|sectsize=num
8 b, ]9 F, O- O' U5 Q' ?0 H/* force overwrite */ [-f]
J! y# ]# ~# j& r c+ y/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,5 O( }% X* I5 B; p# ~& E/ |
projid32bit=0|1]0 d! [ X/ W9 u
/* no discard */ [-K]9 P9 f0 r- T a8 C+ f# e* `- @
/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n3 ^* Z$ B$ O* K7 A7 Y( F
sunit=value|su=num,sectlog=n|sectsize=num,
+ R2 ]; t% [7 w, {2 p8 q lazy-count=0|1]- S% {" w( T: |( B& k
/* label */ [-L label (maximum 12 characters)]. l1 U- {8 J# W% X7 A
/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]& Z; e- K. c/ B2 V# B
/* no-op info only */ [-N]
$ S; I0 ]( t: {' {, ~2 w0 L/* prototype file */ [-p fname]3 q3 M' \% Y# _% q8 k- \6 i
/* quiet */ [-q]
6 C/ Q/ f& t& W, m; q/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]
7 C1 H+ [6 V) d/ ?7 D/* sectorsize */ [-s log=n|size=num]
3 F& h* K. l; q0 u/* version */ [-V]2 E1 s1 D4 o( H# Y5 }: O$ K: A
devicename- W& h; R4 G# W
<devicename> is required unless -d name=xxx is given.9 W f6 E3 c& Q! f% {! J
<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
- A Z2 A. o ` xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).
K! u# e# c0 A<value> is xxx (512 byte blocks).
3 `. P( n) A8 e& [7 F# |1 r' R0 e! M2 l
$ u2 Z3 A& ]7 x. j说明磁盘被挂载状态是不让格式化的，需要卸载掉：+ Q$ b4 n* w. \6 [; a; H: {; b, N
I) ]! Z% t/ i2 J, @[root@KVM /]# umount /mnt/
: _) n4 q8 i m. k5 {! I[root@KVM /]# mkfs.xfs -f /dev/mapper/bigdata-cloud ! ^4 A0 f% x q
meta-data=/dev/mapper/bigdata-cloud isize=512 agcount=4, agsize=183141376 blks+ R9 X/ i7 N8 d- a9 B( S0 f/ l
= sectsz=4096 attr=2, projid32bit=1* u! R% |* S; e6 T; u3 |! Q" S
= crc=1 finobt=0, sparse=0
0 Y0 I' q& ]8 d7 }# \6 Y) ]$ @data = bsize=4096 blocks=732565504, imaxpct=5+ c* `* o# a# R. I" N0 h
= sunit=0 swidth=0 blks
* _/ q+ U& y# Xnaming =version 2 bsize=4096 ascii-ci=0 ftype=1
' r- F- j* @& Alog =internal log bsize=4096 blocks=357698, version=2
: O) M( R Z! f = sectsz=4096 sunit=1 blks, lazy-count=1) A. c. \4 [5 I$ N: n P$ @
realtime =none extsz=4096 blocks=0, rtextents=04 j+ C# n+ R \9 ?8 |
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格式化成功。9 v# @$ O* {9 K2 @( P' H( I- P/ T
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发表于 2021-3-9 20:56:04