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