|  | What:		/sys/class/rnbd-server | 
|  | Date:		Feb 2020 | 
|  | KernelVersion:	5.7 | 
|  | Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> | 
|  | Description:	provide information about RNBD-server. | 
|  |  | 
|  | What:		/sys/class/rnbd-server/ctl/ | 
|  | Date:		Feb 2020 | 
|  | KernelVersion:	5.7 | 
|  | Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> | 
|  | Description:	When a client maps a device, a directory entry with the name of the | 
|  | block device is created under /sys/class/rnbd-server/ctl/devices/. | 
|  |  | 
|  | What:		/sys/class/rnbd-server/ctl/devices/<device_name>/block_dev | 
|  | Date:		Feb 2020 | 
|  | KernelVersion:	5.7 | 
|  | Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> | 
|  | Description:	Is a symlink to the sysfs entry of the exported device. | 
|  |  | 
|  | Example: | 
|  | block_dev -> ../../../../class/block/ram0 | 
|  |  | 
|  | What:		/sys/class/rnbd-server/ctl/devices/<device_name>/sessions/ | 
|  | Date:		Feb 2020 | 
|  | KernelVersion:	5.7 | 
|  | Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> | 
|  | Description:	For each client a particular device is exported to, following directory will be | 
|  | created: | 
|  |  | 
|  | /sys/class/rnbd-server/ctl/devices/<device_name>/sessions/<session-name>/ | 
|  |  | 
|  | When the device is unmapped by that client, the directory will be removed. | 
|  |  | 
|  | What:		/sys/class/rnbd-server/ctl/devices/<device_name>/sessions/<session-name>/read_only | 
|  | Date:		Feb 2020 | 
|  | KernelVersion:	5.7 | 
|  | Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> | 
|  | Description:	Contains '1' if device is mapped read-only, otherwise '0'. | 
|  |  | 
|  | What:		/sys/class/rnbd-server/ctl/devices/<device_name>/sessions/<session-name>/mapping_path | 
|  | Date:		Feb 2020 | 
|  | KernelVersion:	5.7 | 
|  | Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> | 
|  | Description:	Contains the relative device path provided by the user during mapping. | 
|  |  | 
|  | What:		/sys/class/rnbd-server/ctl/devices/<device_name>/sessions/<session-name>/access_mode | 
|  | Date:		Feb 2020 | 
|  | KernelVersion:	5.7 | 
|  | Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> | 
|  | Description:	Contains the device access mode: ro, rw or migration. | 
|  |  | 
|  | What:		/sys/class/rnbd-server/ctl/devices/<device_name>/sessions/<session-name>/force_close | 
|  | Date:		Nov 2020 | 
|  | KernelVersion:	5.10 | 
|  | Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> | 
|  | Description:	Write "1" to the file to close the device on server side. Please | 
|  | note that the client side device will not be closed, read or | 
|  | write to the device will get -ENOTCONN. |