1 What: /sys/bus/xen-backend/devices/* 1 What: /sys/bus/xen-backend/devices/*/devtype
2 Date: Feb 2009 2 Date: Feb 2009
3 KernelVersion: 2.6.38 3 KernelVersion: 2.6.38
4 Contact: Konrad Rzeszutek Wilk <konrad.w 4 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
5 Description: 5 Description:
6 The type of the device. e.g., 6 The type of the device. e.g., one of: 'vbd' (block),
7 'vif' (network), or 'vfb' (fra 7 'vif' (network), or 'vfb' (framebuffer).
8 8
9 What: /sys/bus/xen-backend/devices/* 9 What: /sys/bus/xen-backend/devices/*/nodename
10 Date: Feb 2009 10 Date: Feb 2009
11 KernelVersion: 2.6.38 11 KernelVersion: 2.6.38
12 Contact: Konrad Rzeszutek Wilk <konrad.w 12 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
13 Description: 13 Description:
14 XenStore node (under /local/do 14 XenStore node (under /local/domain/NNN/) for this
15 backend device. 15 backend device.
16 16
17 What: /sys/bus/xen-backend/devices/v 17 What: /sys/bus/xen-backend/devices/vbd-*/physical_device
18 Date: April 2011 18 Date: April 2011
19 KernelVersion: 3.0 19 KernelVersion: 3.0
20 Contact: Konrad Rzeszutek Wilk <konrad.w 20 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
21 Description: 21 Description:
22 The major:minor number (in hex !! 22 The major:minor number (in hexidecimal) of the
23 physical device providing the 23 physical device providing the storage for this backend
24 block device. 24 block device.
25 25
26 What: /sys/bus/xen-backend/devices/v 26 What: /sys/bus/xen-backend/devices/vbd-*/mode
27 Date: April 2011 27 Date: April 2011
28 KernelVersion: 3.0 28 KernelVersion: 3.0
29 Contact: Konrad Rzeszutek Wilk <konrad.w 29 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
30 Description: 30 Description:
31 Whether the block device is re 31 Whether the block device is read-only ('r') or
32 read-write ('w'). 32 read-write ('w').
33 33
34 What: /sys/bus/xen-backend/devices/v 34 What: /sys/bus/xen-backend/devices/vbd-*/statistics/f_req
35 Date: April 2011 35 Date: April 2011
36 KernelVersion: 3.0 36 KernelVersion: 3.0
37 Contact: Konrad Rzeszutek Wilk <konrad.w 37 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
38 Description: 38 Description:
39 Number of flush requests from 39 Number of flush requests from the frontend.
40 40
41 What: /sys/bus/xen-backend/devices/v 41 What: /sys/bus/xen-backend/devices/vbd-*/statistics/oo_req
42 Date: April 2011 42 Date: April 2011
43 KernelVersion: 3.0 43 KernelVersion: 3.0
44 Contact: Konrad Rzeszutek Wilk <konrad.w 44 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
45 Description: 45 Description:
46 Number of requests delayed bec 46 Number of requests delayed because the backend was too
47 busy processing previous reque 47 busy processing previous requests.
48 48
49 What: /sys/bus/xen-backend/devices/v 49 What: /sys/bus/xen-backend/devices/vbd-*/statistics/rd_req
50 Date: April 2011 50 Date: April 2011
51 KernelVersion: 3.0 51 KernelVersion: 3.0
52 Contact: Konrad Rzeszutek Wilk <konrad.w 52 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
53 Description: 53 Description:
54 Number of read requests from t 54 Number of read requests from the frontend.
55 55
56 What: /sys/bus/xen-backend/devices/v 56 What: /sys/bus/xen-backend/devices/vbd-*/statistics/rd_sect
57 Date: April 2011 57 Date: April 2011
58 KernelVersion: 3.0 58 KernelVersion: 3.0
59 Contact: Konrad Rzeszutek Wilk <konrad.w 59 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
60 Description: 60 Description:
61 Number of sectors read by the 61 Number of sectors read by the frontend.
62 62
63 What: /sys/bus/xen-backend/devices/v 63 What: /sys/bus/xen-backend/devices/vbd-*/statistics/wr_req
64 Date: April 2011 64 Date: April 2011
65 KernelVersion: 3.0 65 KernelVersion: 3.0
66 Contact: Konrad Rzeszutek Wilk <konrad.w 66 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
67 Description: 67 Description:
68 Number of write requests from 68 Number of write requests from the frontend.
69 69
70 What: /sys/bus/xen-backend/devices/v 70 What: /sys/bus/xen-backend/devices/vbd-*/statistics/wr_sect
71 Date: April 2011 71 Date: April 2011
72 KernelVersion: 3.0 72 KernelVersion: 3.0
73 Contact: Konrad Rzeszutek Wilk <konrad.w 73 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
74 Description: 74 Description:
75 Number of sectors written by t 75 Number of sectors written by the frontend.
76 76
77 What: /sys/bus/xen-backend/devices/* 77 What: /sys/bus/xen-backend/devices/*/state
78 Date: August 2018 78 Date: August 2018
79 KernelVersion: 4.19 79 KernelVersion: 4.19
80 Contact: Joe Jin <joe.jin@oracle.com> 80 Contact: Joe Jin <joe.jin@oracle.com>
81 Description: 81 Description:
82 The state of the device. One o 82 The state of the device. One of: 'Unknown',
83 'Initialising', 'Initialised', 83 'Initialising', 'Initialised', 'Connected', 'Closing',
84 'Closed', 'Reconfiguring', 'Re 84 'Closed', 'Reconfiguring', 'Reconfigured'.
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