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| author | Peter Gervai <grin@grin.hu> | 2012-09-30 22:48:37 +0200 |
|---|---|---|
| committer | Christophe Varoqui <christophe.varoqui@opensvc.com> | 2012-09-30 22:48:37 +0200 |
| commit | 90b8b4d03c653ddf23221ca5fd8024091411a34b (patch) | |
| tree | ded658787652c94928560b568278583b0d29c142 /libmultipath | |
| parent | 050b24b33d3c60e29f7820d2fb75e84a9edde528 (diff) | |
| download | multipath-tools-90b8b4d03c653ddf23221ca5fd8024091411a34b.tar.gz multipath-tools-90b8b4d03c653ddf23221ca5fd8024091411a34b.tar.bz2 multipath-tools-90b8b4d03c653ddf23221ca5fd8024091411a34b.zip | |
iet prioritizer fix
- revert the path weight allocation : heavy weight for the
preferred path, light for others
- mention the original author's name
- embed a short usage documentation
Diffstat (limited to 'libmultipath')
| -rw-r--r-- | libmultipath/prioritizers/iet.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/libmultipath/prioritizers/iet.c b/libmultipath/prioritizers/iet.c index 59bdee4..2570b61 100644 --- a/libmultipath/prioritizers/iet.c +++ b/libmultipath/prioritizers/iet.c @@ -9,6 +9,22 @@ #include <debug.h> #include <unistd.h> +// +// This prioritizer suits iSCSI needs, makes it possible to prefer one path. +// +// (It's a bit of a misnomer since supports the client side [eg. open-iscsi] +// instead of just "iet".) +// +// Usage: +// prio "iet" +// prio_args "preferredip=10.11.12.13" +// +// Uses /dev/disk/by-path to find the IP of the device. +// Assigns prio 20 (high) to the preferred IP and prio 10 (low) to the rest. +// +// by Olivier Lambert <lambert.olivier.gmail.com> +// + #define dc_log(prio, msg) condlog(prio, "%s: iet prio: " msg, dev) // // name: find_regex @@ -102,7 +118,7 @@ int iet_prio(const char *dev, char * args) // high prio free(ip); closedir(dir_p); - return 10; + return 20; } free(ip); } @@ -115,7 +131,7 @@ int iet_prio(const char *dev, char * args) } // nothing found, low prio closedir(dir_p); - return 20; + return 10; } int getprio(struct path * pp, char * args) |