Documentation/ABI/stable/sysfs-bus-xen-backend

   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'.