Comments on Using Ceph as Block Device on CentOS 7

Thank you for your article, everything works OK.

But what should I do next to map this /dev/rbd0 40 Gb to Windows Server 2012? I want to see this 40 Gb partition as a logical disk D: or E:? 

Build an rbd <-> iscsi bridge. tgtadm is the tool for that, explanation https://www.heinlein-support.de/sites/default/files/ceph-iscsi-host-failover-multipath_0.pdf (german sorry)

Does anyone have a example of the kernel paramaters required to modprobe a ram0 disk diretly from the rbd.ko modules not the binary.  I know this can be done I just lost my reff or forget how.

I Have completed the intallation done! Thanks the information.

I have a question, let say i have done the rbd1 create 1 size 4gb, and i resize it to 10gb. 

[cephuser@client ~]$  rbd ls -lNAME     SIZE PARENT FMT PROT LOCK 

disk01 10240M          2           

disk02   800G          2           

[cephuser@client ~]$ 

But i mount it to /mnt/test  still remain old size 4gb, how to enlarge the actual size so i can use up to 10gb ?

[cephuser@client ~]$ df -h

Filesystem      Size  Used Avail Use% Mounted on

devtmpfs        486M     0  486M   0% /dev

tmpfs           496M     0  496M   0% /dev/shm

tmpfs           496M   51M  446M  11% /run

tmpfs           496M     0  496M   0% /sys/fs/cgroup

/dev/vda1        25G  1.9G   22G   9% /

tmpfs           100M     0  100M   0% /run/user/0

/dev/rbd0       800G   34M  800G   1% /mnt/mydisk

/dev/rbd1       4.0G  4.0G   32K 100% /mnt/test

[cephuser@client ~]$ 

I not able see my /mnt/test is 10gb

Thank Arul for the sharing, Please let us know what if we required to access the object storage from android phone ? Do ceph have any mobile app ?