| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame^] | 1 | What: /sys/bus/xen-backend/devices/*/devtype |
| 2 | Date: Feb 2009 |
| 3 | KernelVersion: 2.6.38 |
| 4 | Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| 5 | Description: |
| 6 | The type of the device. e.g., one of: 'vbd' (block), |
| 7 | 'vif' (network), or 'vfb' (framebuffer). |
| 8 | |
| 9 | What: /sys/bus/xen-backend/devices/*/nodename |
| 10 | Date: Feb 2009 |
| 11 | KernelVersion: 2.6.38 |
| 12 | Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| 13 | Description: |
| 14 | XenStore node (under /local/domain/NNN/) for this |
| 15 | backend device. |
| 16 | |
| 17 | What: /sys/bus/xen-backend/devices/vbd-*/physical_device |
| 18 | Date: April 2011 |
| 19 | KernelVersion: 3.0 |
| 20 | Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| 21 | Description: |
| 22 | The major:minor number (in hexidecimal) of the |
| 23 | physical device providing the storage for this backend |
| 24 | block device. |
| 25 | |
| 26 | What: /sys/bus/xen-backend/devices/vbd-*/mode |
| 27 | Date: April 2011 |
| 28 | KernelVersion: 3.0 |
| 29 | Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| 30 | Description: |
| 31 | Whether the block device is read-only ('r') or |
| 32 | read-write ('w'). |
| 33 | |
| 34 | What: /sys/bus/xen-backend/devices/vbd-*/statistics/f_req |
| 35 | Date: April 2011 |
| 36 | KernelVersion: 3.0 |
| 37 | Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| 38 | Description: |
| 39 | Number of flush requests from the frontend. |
| 40 | |
| 41 | What: /sys/bus/xen-backend/devices/vbd-*/statistics/oo_req |
| 42 | Date: April 2011 |
| 43 | KernelVersion: 3.0 |
| 44 | Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| 45 | Description: |
| 46 | Number of requests delayed because the backend was too |
| 47 | busy processing previous requests. |
| 48 | |
| 49 | What: /sys/bus/xen-backend/devices/vbd-*/statistics/rd_req |
| 50 | Date: April 2011 |
| 51 | KernelVersion: 3.0 |
| 52 | Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| 53 | Description: |
| 54 | Number of read requests from the frontend. |
| 55 | |
| 56 | What: /sys/bus/xen-backend/devices/vbd-*/statistics/rd_sect |
| 57 | Date: April 2011 |
| 58 | KernelVersion: 3.0 |
| 59 | Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| 60 | Description: |
| 61 | Number of sectors read by the frontend. |
| 62 | |
| 63 | What: /sys/bus/xen-backend/devices/vbd-*/statistics/wr_req |
| 64 | Date: April 2011 |
| 65 | KernelVersion: 3.0 |
| 66 | Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| 67 | Description: |
| 68 | Number of write requests from the frontend. |
| 69 | |
| 70 | What: /sys/bus/xen-backend/devices/vbd-*/statistics/wr_sect |
| 71 | Date: April 2011 |
| 72 | KernelVersion: 3.0 |
| 73 | Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| 74 | Description: |
| 75 | Number of sectors written by the frontend. |
| 76 | |
| 77 | What: /sys/bus/xen-backend/devices/*/state |
| 78 | Date: August 2018 |
| 79 | KernelVersion: 4.19 |
| 80 | Contact: Joe Jin <joe.jin@oracle.com> |
| 81 | Description: |
| 82 | The state of the device. One of: 'Unknown', |
| 83 | 'Initialising', 'Initialised', 'Connected', 'Closing', |
| 84 | 'Closed', 'Reconfiguring', 'Reconfigured'. |