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cbd2ea21 CV |
1 | .TH MULTIPATH 8 "February 2004" "" "Linux Administrator's Manual" |
2 | .SH NAME | |
3 | multipath \- Device mapper target autoconfig | |
4 | .SH SYNOPSIS | |
5 | .B multipath | |
6 | .RB [\| \-v | \-q \|] | |
7 | .RB [\| \-d \|] | |
8 | .RB [\| \-m\ \c | |
9 | .IR max_devs \|] | |
10 | .RB [\| \-p\ \c | |
11 | .BR failover | multibus | group_by_serial \|] | |
12 | .RB [\| device \|] | |
13 | .SH DESCRIPTION | |
14 | .B multipath | |
15 | is used to detect multiple paths to devices for fail-over or performance reasons and coalesces them. | |
16 | .SH OPTIONS | |
17 | .TP | |
18 | .B \-v | |
19 | verbose, print all paths and multipaths | |
20 | .TP | |
21 | .B \-q | |
22 | quiet, no output at all | |
23 | .TP | |
24 | .B \-d | |
25 | dry run, do not create or update devmaps | |
26 | .TP | |
27 | .BI \-m " max_devs" | |
28 | scan | |
29 | .I max_devs | |
30 | devices at most | |
31 | .TP | |
32 | .BI \-p " policy" | |
33 | force maps to specified policy: | |
34 | .RS 1.2i | |
35 | .TP 1.2i | |
36 | .B failover | |
37 | 1 path per priority group | |
38 | .TP | |
39 | .B multibus | |
40 | all paths in 1 priority group | |
41 | .TP | |
42 | .B group_by_serial | |
43 | 1 priority group per serial | |
44 | .RE | |
45 | .TP | |
46 | .B device | |
47 | limit the [re]configuration to the specified device's multipath scope. device is given in its hotplug $DEVPATH form like /devices/pci0000:03/0000:03:01.0/host0/0:0:5:1 | |
48 | .SH "SEE ALSO" | |
49 | .BR udev (8), | |
50 | .BR dmsetup (8) | |
51 | .SH AUTHORS | |
52 | .B multipath | |
53 | was developed by Christophe Varoqui, <christophe.varoqui@free.fr> and others. |