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 hexadecimal) 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'.
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