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mkfs.xfs格式化磁盘时报/dev/mapper/xxx contains a mounted filesystem
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9 A3 A& }, P& S) Z1 Z[root@KVM mnt]# mkfs.xfs -f /dev/mapper/bigdata-cloud
% d2 E r2 @5 t) ]0 R Bmkfs.xfs: /dev/mapper/bigdata-cloud contains a mounted filesystem. ~6 |( K) v; B) `
Usage: mkfs.xfs2 l. r9 {- e' Z& w
/* blocksize */ [-b log=n|size=num]4 o6 K1 |8 A* x, c9 ]- O
/* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx]
2 X( ~* W7 [' B# q5 j/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,* r* d5 z9 u, [% V
(sunit=value,swidth=value|su=num,sw=num|noalign),: Q: M, D6 F7 n
sectlog=n|sectsize=num& H& S: J& ?$ f( G C) l; c4 t& ~* \
/* force overwrite */ [-f]
) a' k6 @+ P3 a4 {* B" y/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,
$ l+ D5 Y/ D7 O3 f4 { projid32bit=0|1]& K3 k1 B9 ^& P2 t
/* no discard */ [-K]
$ i4 N3 Z3 G% G$ J1 N( d" j/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n" _. ~5 ]) D! _/ Y; j
sunit=value|su=num,sectlog=n|sectsize=num,
1 o& I( d+ o- O1 w' K( I" { lazy-count=0|1]
1 S% J: q6 m0 O5 X3 m- H/ z9 }6 K/* label */ [-L label (maximum 12 characters)]
! b4 W) v5 R7 h7 R' e) z/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]4 P; K2 U7 X9 J
/* no-op info only */ [-N]
" L; @$ \" ^/ A3 P/ U/* prototype file */ [-p fname]4 c m |% m2 e/ |2 u
/* quiet */ [-q]) Y R- q) s5 O& t
/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]
4 {) i; U% J% ?- i0 F6 `/* sectorsize */ [-s log=n|size=num]$ b! q7 z0 Y8 [4 l& c
/* version */ [-V]
. U8 |8 N0 a ?: b, } devicename" s1 P& |1 `" h5 T1 @
<devicename> is required unless -d name=xxx is given.
) @% T# H3 e( z* U3 ?<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
# V, l2 H) b. N xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).
8 l( F; p C( f- T<value> is xxx (512 byte blocks).
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" F& J, X( s4 e. x5 T说明我们占用了这个设备，设备在使用状态：
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7 U: @, b! g$ |[root@KVM mnt]# cd ..
" ^0 ^& f u6 x9 t0 G4 U9 W切换到其他目录：
8 q! K; Z6 P+ P2 B- {0 A保证磁盘没有buzy状态
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. ?5 H3 x8 P4 b* S[root@KVM /]# mkfs.xfs -f /dev/mapper/bigdata-cloud
# v) p1 j) E5 T, Q1 Q6 gmkfs.xfs: /dev/mapper/bigdata-cloud contains a mounted filesystem
0 L# z! z1 q+ i+ q0 h( G. w# T) `" i9 XUsage: mkfs.xfs
5 J7 u/ e1 J) C" W# t0 U/* blocksize */ [-b log=n|size=num]
: t) Y6 I- `! \9 a3 M' o2 v/* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx]
1 c- G* P, B# Q6 F/ M/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,% B: E0 n" A2 O3 B# F
(sunit=value,swidth=value|su=num,sw=num|noalign),# p. q" c/ ^( O2 r/ I: b+ k
sectlog=n|sectsize=num
; s# ?3 Z2 a4 s" W2 ^/* force overwrite */ [-f]
! \# T7 D: D4 W0 [/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,: K8 f0 G, t" R2 F: d$ a
projid32bit=0|1]
+ c q' j# W7 l, N: Q' n# S- {: z/* no discard */ [-K]
: m9 _5 g% }4 Z0 _4 u% Q/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n
' G- @1 m5 n3 [8 _7 J2 O sunit=value|su=num,sectlog=n|sectsize=num, d* c2 {7 X F Q* _% S
lazy-count=0|1] ~" V* ?' q, t) V, P Z! ?2 Z
/* label */ [-L label (maximum 12 characters)]5 h J3 U) G- F) H" W
/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]( D+ h* V. s5 P( p2 n1 |: p% b
/* no-op info only */ [-N]2 _+ [# `/ }% U# i
/* prototype file */ [-p fname]
& w. `0 h' v4 X9 j* P8 D/* quiet */ [-q]
9 G: }$ D$ I5 G1 r# C# V8 U/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]1 s; z/ e S; X; Z$ W" J& U
/* sectorsize */ [-s log=n|size=num]2 }8 w& f1 r) }/ L
/* version */ [-V]
! F R" L, D/ _ I% X+ ]5 b# D devicename
7 _+ z; e& E! [; y, |2 r<devicename> is required unless -d name=xxx is given.8 z1 R2 v' K9 f) y4 B# z
<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),+ v# q! H' i7 }
xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).! }- d- H3 y( s d% g* e3 L
<value> is xxx (512 byte blocks).
) q# _0 O$ k/ E9 m5 v[root@KVM /]# mkfs.xfs -f /dev/mapper/bigdata-cloud , a% L0 M$ x6 s* a
mkfs.xfs: /dev/mapper/bigdata-cloud contains a mounted filesystem
" P- r7 X" J' Y9 ?) KUsage: mkfs.xfs
( {, g: [1 P, {, ~% C4 z/* blocksize */ [-b log=n|size=num]
# G2 p5 v. q8 D8 V& A. ]. y/* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx]" D( ]4 o9 b0 a p, u) V+ E* f
/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,
; Z" w6 A& I k1 N/ `9 I (sunit=value,swidth=value|su=num,sw=num|noalign),
) T$ T' x% p. b2 o* M% e sectlog=n|sectsize=num# |0 P" j) d1 N2 D& x1 Q- L5 e, ^
/* force overwrite */ [-f]
7 ?' x" }* o, [' R6 a/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,
1 m& O; W% y3 B$ \ projid32bit=0|1]( E/ Q" R& v7 g' x& ?1 U) j
/* no discard */ [-K]
1 P$ |8 R, Q w1 G+ {1 j/ R/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n
: T6 J: }1 d: ?- D3 L/ @ sunit=value|su=num,sectlog=n|sectsize=num,
+ {" I* |# a9 ~( U8 y# t5 i& c lazy-count=0|1]5 C$ b8 T ~0 z' I
/* label */ [-L label (maximum 12 characters)]
1 a5 n7 t, m& k0 i/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]; D) H4 B8 v1 |( h
/* no-op info only */ [-N]& w$ m1 \/ i- F9 S- G: D" p* C7 ?
/* prototype file */ [-p fname]& H+ Q F% b2 C; C; H, z
/* quiet */ [-q]
- m* J( s p% l9 u( u1 w- U# |* Y2 D- L0 N/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]
# D0 g' H8 r. H0 v/ Y& x/* sectorsize */ [-s log=n|size=num]
* Y" f! [( D* d# Z2 W/* version */ [-V]
# A' w6 P/ }) Z$ B0 Q! z3 M devicename+ Z( H' C% l' j& t: F9 J6 T3 n
<devicename> is required unless -d name=xxx is given.& T" a7 N2 H5 ], l6 O
<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
( E" p. H3 n2 k7 {% L+ v# R xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).0 Z6 q' Q0 z% r: U+ d
<value> is xxx (512 byte blocks).$ g4 t/ z( h2 z9 m7 _
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说明磁盘被挂载状态是不让格式化的，需要卸载掉：0 p6 P B+ F( x+ g. w8 C
9 J9 S3 t; W8 l; y[root@KVM /]# umount /mnt/, G$ G g* K8 @, ~3 S
[root@KVM /]# mkfs.xfs -f /dev/mapper/bigdata-cloud
3 { Z, f# n/ g# o% Smeta-data=/dev/mapper/bigdata-cloud isize=512 agcount=4, agsize=183141376 blks
9 T% H8 J$ D- u/ C2 g: j# N = sectsz=4096 attr=2, projid32bit=1
3 x% a y, T; g' w: j. i X = crc=1 finobt=0, sparse=0# Y1 |2 F( Y; U) r# w
data = bsize=4096 blocks=732565504, imaxpct=53 |; M+ U: @# m9 \( f* ~
= sunit=0 swidth=0 blks
! M9 l* q5 _- T$ Jnaming =version 2 bsize=4096 ascii-ci=0 ftype=1
( H8 j; T% G" nlog =internal log bsize=4096 blocks=357698, version=2& O" s( Y E" W+ {; m4 T: D
= sectsz=4096 sunit=1 blks, lazy-count=1. {0 _1 ? p% P, t( r" w9 ?1 ?! S( h
realtime =none extsz=4096 blocks=0, rtextents=0
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格式化成功。: z" {3 p# P& a$ H" e
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发表于 2021-3-9 20:56:04