Hi,

you can use the pool/image names to access your rbd image:

ceph:~ # rbd showmapped
id pool   namespace image  snap device
0  cinder           image1 -    /dev/rbd0

ceph:~ # ls -l /dev/rbd/cinder/image1
lrwxrwxrwx 1 root root 10  6. Apr 11:39 /dev/rbd/cinder/image1 -> ../../rbd0


I'm not aware of an option to change the device name.

Regards,
Eugen


Zitat von [email protected]:

Hi:

I use image map to mount a ceph device to localhost,but I found that,the device name I can not control. This is a problem,when it's name changed,the FS on it or the database using this device may get wrongs.
Can I control the device name?

For exapme:


[root@gate2 ~]# rbd showmapped
id pool     namespace image    snap device
0  testpool           test_img -    /dev/rbd0

Can I map the device like this,just directly give the deveice name?like this:

rbd map testpool/test_img  /dev/rbd0





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