My testing has showed service-time to be as good and occassionally noticeably better than round-robin. So the patch switches the default selector to give better performance out of the box. Signed-off-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx> --- libmultipath/defaults.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libmultipath/defaults.h b/libmultipath/defaults.h index f647ee0..097c66f 100644 --- a/libmultipath/defaults.h +++ b/libmultipath/defaults.h @@ -1,7 +1,7 @@ #define DEFAULT_UID_ATTRIBUTE "ID_SERIAL" #define DEFAULT_UDEVDIR "/dev" #define DEFAULT_MULTIPATHDIR "/" LIB_STRING "/multipath" -#define DEFAULT_SELECTOR "round-robin 0" +#define DEFAULT_SELECTOR "service-time 0" #define DEFAULT_ALIAS_PREFIX "mpath" #define DEFAULT_FEATURES "0" #define DEFAULT_HWHANDLER "0" -- 1.8.0 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel