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mkfs.xfs格式化磁盘时报/dev/mapper/xxx contains a mounted filesystem. v2 k# q! W& M, L
* G; P, ?7 ` L[root@KVM mnt]# mkfs.xfs -f /dev/mapper/bigdata-cloud
$ ]8 a+ \; \ R; P2 Hmkfs.xfs: /dev/mapper/bigdata-cloud contains a mounted filesystem
4 L9 S6 u- n1 P7 i* V0 n; T7 ^Usage: mkfs.xfs; j% ]; m5 [9 A' t
/* blocksize */ [-b log=n|size=num]$ A$ g3 X. W! T, b7 m
/* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx]
) V6 f6 @! S* ~9 v# Q+ X/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,3 E. Q f; G- S' C* X' w3 j
(sunit=value,swidth=value|su=num,sw=num|noalign),- J3 a' h3 k2 Z) P# j/ M) s
sectlog=n|sectsize=num, @1 ^ E U% K N$ v$ g" L7 F
/* force overwrite */ [-f]; L- o( @% y, m/ l% J3 A6 n
/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,# ]) F/ j. v5 _4 p6 D
projid32bit=0|1]6 j7 c5 s) u l& F0 t
/* no discard */ [-K]
Y1 P; d8 q B8 g- x* p/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n8 o0 ]% T C: k# [0 D
sunit=value|su=num,sectlog=n|sectsize=num,/ ]! s7 d+ Z6 ?
lazy-count=0|1]2 Q& I$ H: C K: j
/* label */ [-L label (maximum 12 characters)]. C* R/ R5 m5 C# b4 g1 F2 l
/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]
- E- u$ e5 w1 s/* no-op info only */ [-N]
7 k/ C) C, F( e G) H/* prototype file */ [-p fname]
+ ?* Z7 J o- O' Q2 f6 x+ `; V' T/* quiet */ [-q]& _4 e7 K! V) P0 i0 A
/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx] G6 B2 C. ~; |7 a* Y
/* sectorsize */ [-s log=n|size=num]* [4 x' [+ Q9 Q: h" [
/* version */ [-V]" R' n2 n' u) q) j0 |$ x* [
devicename( U1 e) `3 ^0 |
<devicename> is required unless -d name=xxx is given.
! R' D' t3 V0 q: l' f7 z<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
! B9 V# }& H8 ^% B xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).( p7 i% y' x5 J! f S
<value> is xxx (512 byte blocks).2 H" {4 A% J! d0 X
' q0 b& |# H3 Y* e% O$ j说明我们占用了这个设备，设备在使用状态：# b4 P: `0 i2 }( o
- o# v- z) w6 g9 d" a1 k6 e) M( R4 u[root@KVM mnt]# cd ..
: q) P' m8 t: z切换到其他目录：
Q3 A% R1 y% ]0 Y保证磁盘没有buzy状态
5 G* n0 |# T7 `* s [$ v4 k0 ~2 {. J! N
[root@KVM /]# mkfs.xfs -f /dev/mapper/bigdata-cloud 6 q7 ]# [- ^( u, D1 J; l9 j
mkfs.xfs: /dev/mapper/bigdata-cloud contains a mounted filesystem
: e M; \- r! eUsage: mkfs.xfs; h4 l. Z- u# \8 R( D7 F4 T( c
/* blocksize */ [-b log=n|size=num]
4 N1 [. l* }! [) R' k L/* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx]
; @ z! `# r( `9 X2 }/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,* S+ M" {% c4 D% V* w9 p1 a1 n
(sunit=value,swidth=value|su=num,sw=num|noalign),
; T; M* G+ b# m3 k3 z2 M% I# k sectlog=n|sectsize=num8 _& s" P1 ~ b5 \9 r8 @
/* force overwrite */ [-f]
9 I% G4 j4 C8 J$ Y/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2," [8 h. p0 o E' ~, M
projid32bit=0|1]8 U1 R8 H* ]( }+ H/ x
/* no discard */ [-K]0 j0 N! b/ s5 v0 F7 H. T
/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n
/ r2 _6 q0 j. T% x' ^" {% L sunit=value|su=num,sectlog=n|sectsize=num,% S8 l: v. ^# j7 A6 P7 A
lazy-count=0|1]
! x, J, [ s1 z% Q# M/* label */ [-L label (maximum 12 characters)], _( |. R7 n$ ~ M$ k2 @, e8 s9 U
/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]0 s$ P+ U! e3 p3 e$ n
/* no-op info only */ [-N]# a7 u% Q9 J4 b& r
/* prototype file */ [-p fname] {6 K+ Z o K9 b \
/* quiet */ [-q]; R5 M( r! N0 | ~, u8 `
/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]# }# ^# ]) l: f. i2 p
/* sectorsize */ [-s log=n|size=num]+ W* Y/ y9 c+ T; V( v. S
/* version */ [-V]
3 k) A$ }, H" q8 t# d) _: S devicename0 I C. C4 X6 G4 x
<devicename> is required unless -d name=xxx is given.9 C3 h0 E6 Z! ?0 s: P7 A$ q0 {4 l
<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
3 G& B$ r5 ? s xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB)." q) ?1 g K1 W8 ^
<value> is xxx (512 byte blocks).
* q% t' _0 `. ~/ r[root@KVM /]# mkfs.xfs -f /dev/mapper/bigdata-cloud
# [# m: ]9 b# |/ o' Hmkfs.xfs: /dev/mapper/bigdata-cloud contains a mounted filesystem% T4 M d9 Z6 U+ c$ }5 i5 ^7 r
Usage: mkfs.xfs3 T! d3 A$ K* W, l
/* blocksize */ [-b log=n|size=num]1 n9 ?1 y/ ?, k9 C/ X6 [" [& g/ Q
/* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx]
% X4 ~7 d% q1 l+ N1 C+ T) ^/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,
* J. \$ f* T7 z5 b! L. {* R (sunit=value,swidth=value|su=num,sw=num|noalign),
9 ^+ I m$ F$ @+ ?3 T sectlog=n|sectsize=num
6 l- n/ ^0 N( N/* force overwrite */ [-f]
3 k' _% U6 Z8 s/ _% k/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,9 Y4 @; J6 w4 b. r$ D: g' m6 w
projid32bit=0|1]
6 R6 f; X5 l2 U5 w/* no discard */ [-K]
1 |4 E/ z$ L6 _. W3 G# ^/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n
9 Q% A6 G. d4 Z0 ?0 p& x3 t sunit=value|su=num,sectlog=n|sectsize=num,9 V* s8 @$ T) t/ L
lazy-count=0|1]; F. S% ~9 k# e5 I
/* label */ [-L label (maximum 12 characters)]& F6 w( S/ ^3 _
/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]
+ a& L4 j, I& f% }% Z- T/ ]/* no-op info only */ [-N]8 s8 f: t- S$ Y/ K& t8 a
/* prototype file */ [-p fname]
2 e8 z; A. r, u: z8 V/* quiet */ [-q]2 L2 r, B2 A* G% V
/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]. w+ G* s' p# _
/* sectorsize */ [-s log=n|size=num]6 j: R! j9 [9 ?. A( T4 l
/* version */ [-V]1 Y' p4 N! J7 }" x
devicename
" P1 a* t: P8 A ?<devicename> is required unless -d name=xxx is given.' {- m) g) E+ }/ j7 S
<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
3 o/ Z8 @: K/ {* z: k! i xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).0 w9 h9 V5 w; D" Z8 `0 }' S1 l
<value> is xxx (512 byte blocks).
6 `3 z. K! O+ |( V, W1 f r2 k9 W* o& U7 T2 [
4 }! H: Q4 X; t+ {* `说明磁盘被挂载状态是不让格式化的，需要卸载掉：4 N& V* m+ F$ b% g/ |
7 L5 ~9 Q8 x% _+ j[root@KVM /]# umount /mnt/5 w& C# _; p: E0 p9 w! D+ y: m
[root@KVM /]# mkfs.xfs -f /dev/mapper/bigdata-cloud
- [. b% l# x$ i; a s) _/ nmeta-data=/dev/mapper/bigdata-cloud isize=512 agcount=4, agsize=183141376 blks# X8 o/ t! \+ u- f
= sectsz=4096 attr=2, projid32bit=1
, _6 W! G2 k8 Z( C7 |5 K = crc=1 finobt=0, sparse=0. ]6 {# y6 I$ C
data = bsize=4096 blocks=732565504, imaxpct=5
7 w& G. {* d2 H = sunit=0 swidth=0 blks
! u+ K+ {* ?& D4 g# L. enaming =version 2 bsize=4096 ascii-ci=0 ftype=19 z& w) O0 K$ d8 h* K- ^4 A
log =internal log bsize=4096 blocks=357698, version=21 J y! s7 K/ F% f6 B
= sectsz=4096 sunit=1 blks, lazy-count=19 u3 o: n2 t1 }
realtime =none extsz=4096 blocks=0, rtextents=0
1 g- U3 t' s/ |! e% N& y" `2 a/ s: k" B
( K/ e2 `1 Z( I: b$ M- U5 ^
$ y7 L# U( _* y! Q- \6 J. c: f格式化成功。- c% C9 k$ S3 j6 ~
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发表于 2021-3-9 20:56:04