| What: /sys/bus/xen-backend/devices/*/devtype |
| Date: Feb 2009 |
| KernelVersion: 2.6.38 |
| Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| Description: |
| The type of the device. e.g., one of: 'vbd' (block), |
| 'vif' (network), or 'vfb' (framebuffer). |
| |
| What: /sys/bus/xen-backend/devices/*/nodename |
| Date: Feb 2009 |
| KernelVersion: 2.6.38 |
| Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| Description: |
| XenStore node (under /local/domain/NNN/) for this |
| backend device. |
| |
| What: /sys/bus/xen-backend/devices/vbd-*/physical_device |
| Date: April 2011 |
| KernelVersion: 3.0 |
| Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| Description: |
| The major:minor number (in hexidecimal) of the |
| physical device providing the storage for this backend |
| block device. |
| |
| What: /sys/bus/xen-backend/devices/vbd-*/mode |
| Date: April 2011 |
| KernelVersion: 3.0 |
| Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| Description: |
| Whether the block device is read-only ('r') or |
| read-write ('w'). |
| |
| What: /sys/bus/xen-backend/devices/vbd-*/statistics/f_req |
| Date: April 2011 |
| KernelVersion: 3.0 |
| Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| Description: |
| Number of flush requests from the frontend. |
| |
| What: /sys/bus/xen-backend/devices/vbd-*/statistics/oo_req |
| Date: April 2011 |
| KernelVersion: 3.0 |
| Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| Description: |
| Number of requests delayed because the backend was too |
| busy processing previous requests. |
| |
| What: /sys/bus/xen-backend/devices/vbd-*/statistics/rd_req |
| Date: April 2011 |
| KernelVersion: 3.0 |
| Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| Description: |
| Number of read requests from the frontend. |
| |
| What: /sys/bus/xen-backend/devices/vbd-*/statistics/rd_sect |
| Date: April 2011 |
| KernelVersion: 3.0 |
| Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| Description: |
| Number of sectors read by the frontend. |
| |
| What: /sys/bus/xen-backend/devices/vbd-*/statistics/wr_req |
| Date: April 2011 |
| KernelVersion: 3.0 |
| Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| Description: |
| Number of write requests from the frontend. |
| |
| What: /sys/bus/xen-backend/devices/vbd-*/statistics/wr_sect |
| Date: April 2011 |
| KernelVersion: 3.0 |
| Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| Description: |
| Number of sectors written by the frontend. |
| |
| What: /sys/bus/xen-backend/devices/*/state |
| Date: August 2018 |
| KernelVersion: 4.19 |
| Contact: Joe Jin <joe.jin@oracle.com> |
| Description: |
| The state of the device. One of: 'Unknown', |
| 'Initialising', 'Initialised', 'Connected', 'Closing', |
| 'Closed', 'Reconfiguring', 'Reconfigured'. |