|
[root@ceph-server ~]# rbd create temp/myimage201 --size 20480
|
|
[root@ceph-server ~]# rbd du temp/myimage201
|
|
NAME PROVISIONED USED
|
|
myimage201 20480M 0
|
|
|
|
[root@ceph-server ~]# rbd map temp/myimage201
|
|
/dev/rbd0
|
|
|
|
[root@ceph-server ~]# mkdir myimage201
|
|
|
|
[root@ceph-server ~]# mkfs.ext4 -m0 /dev/rbd/temp/myimage201
|
|
mke2fs 1.42.9 (28-Dec-2013)
|
|
Discarding device blocks: done
|
|
Filesystem label=
|
|
OS type: Linux
|
|
Block size=4096 (log=2)
|
|
Fragment size=4096 (log=2)
|
|
Stride=1024 blocks, Stripe width=1024 blocks
|
|
1310720 inodes, 5242880 blocks
|
|
0 blocks (0.00%) reserved for the super user
|
|
First data block=0
|
|
Maximum filesystem blocks=2153775104
|
|
160 block groups
|
|
32768 blocks per group, 32768 fragments per group
|
|
8192 inodes per group
|
|
Superblock backups stored on blocks:
|
|
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
|
|
4096000
|
|
|
|
Allocating group tables: done
|
|
Writing inode tables: done
|
|
Creating journal (32768 blocks): done
|
|
Writing superblocks and filesystem accounting information:
|
|
done
|
|
|
|
|
|
[root@ceph-server ~]# mount /dev/rbd/temp/myimage201 myimage201
|
|
|
|
|
|
[root@ceph-server ~]# cp file.txt myimage201/
|
|
[root@ceph-server ~]# ls -lrth myimage201/
|
|
total 1.1G
|
|
drwx------ 2 root root 16K Oct 25 15:14 lost+found
|
|
-rw-r--r-- 1 root root 1.0G Oct 25 15:17 file.txt
|
|
|
|
|
|
[root@ceph-server ~]# rbd du temp/myimage201
|
|
warning: fast-diff map is not enabled for myimage201. operation may be slow.
|
|
NAME PROVISIONED USED
|
|
myimage201 20480M 1252M
|
|
[root@ceph-server ~]#
|
|
|
|
|
|
[root@ceph-server ~]# df myimage201/
|
|
Filesystem 1K-blocks Used Available Use% Mounted on
|
|
/dev/rbd0 20511312 1093660 19401268 6% /root/myimage201
|
|
[root@ceph-server ~]#
|
|
|
|
|
|
[root@ceph-server ~]# cp file1.txt myimage201/
|
|
[root@ceph-server ~]# ls -lrth myimage201/
|
|
total 2.1G
|
|
drwx------ 2 root root 16K Oct 25 15:14 lost+found
|
|
-rw-r--r-- 1 root root 1.0G Oct 25 15:17 file.txt
|
|
-rw-r--r-- 1 root root 1.0G Oct 25 15:22 file1.txt
|
|
[root@ceph-server ~]# df myimage201/
|
|
Filesystem 1K-blocks Used Available Use% Mounted on
|
|
/dev/rbd0 20511312 2142240 18352688 11% /root/myimage201
|
|
[root@ceph-server ~]#
|
|
|
|
[root@ceph-server ~]# rbd du temp/myimage201
|
|
warning: fast-diff map is not enabled for myimage201. operation may be slow.
|
|
NAME PROVISIONED USED
|
|
myimage201 20480M 2276M
|
|
[root@ceph-server ~]#
|
|
|
|
[root@ceph-server ~]# rm myimage201/file1.txt
|
|
rm: remove regular file ?myimage201/file1.txt?? y
|
|
[root@ceph-server ~]#
|
|
[root@ceph-server ~]# ls -lrth myimage201/
|
|
total 1.1G
|
|
drwx------ 2 root root 16K Oct 25 15:14 lost+found
|
|
-rw-r--r-- 1 root root 1.0G Oct 25 15:17 file.txt
|
|
[root@ceph-server ~]#
|
|
[root@ceph-server ~]#
|
|
[root@ceph-server ~]# df myimage201/
|
|
Filesystem 1K-blocks Used Available Use% Mounted on
|
|
/dev/rbd0 20511312 1093660 19401268 6% /root/myimage201
|
|
[root@ceph-server ~]#
|
|
[root@ceph-server ~]# rbd du temp/myimage201
|
|
warning: fast-diff map is not enabled for myimage201. operation may be slow.
|
|
NAME PROVISIONED USED
|
|
myimage201 20480M 2276M
|
|
[root@ceph-server ~]#
|