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[releases.git] / 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.