sysfs-bus-xen-backend 2.8 KB

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