Hi Christophe, I have tested SLES 10 RC 3. The multipath-tools-0.4.6-25.6 are included. And the Hitachi prioritizer is also included now. I developed the prioritizer under the old name /sbin/pp_hds_modular. But in the distribution is the new name /sbin/mpath_prio_hds_modular used. It seems we have to change the file hwtable.c so that the Hitachi entry points to the new name of the prioritizer. All other things works perfect now (after # mv /sbin/mpath_prio_hds_modular /sbin/pp_hds_modular) with Hitachi Enterprise and Modular Class w/o an adapted /etc/multipath.conf file. WE HAVE TO CHANGE FROM: /* * Hitachi controler family * * Maintainer : Matthias Rudolph * Mail : matthias.rudolph@xxxxxxx */ { .vendor = "{HITACHI,HP}", .product = "OPEN-*", .getuid = DEFAULT_GETUID, .getprio = NULL, .features = DEFAULT_FEATURES, .hwhandler = DEFAULT_HWHANDLER, .selector = DEFAULT_SELECTOR, .pgpolicy = MULTIBUS, .pgfailback = FAILBACK_UNDEF, .rr_weight = RR_WEIGHT_NONE, .no_path_retry = NO_PATH_RETRY_UNDEF, .minio = DEFAULT_MINIO, .checker_name = READSECTOR0, }, { .vendor = "HITACHI", .product = "DF*", .getuid = DEFAULT_GETUID, .getprio = "/sbin/pp_hds_modular %d", .features = DEFAULT_FEATURES, .hwhandler = DEFAULT_HWHANDLER, .selector = DEFAULT_SELECTOR, .pgpolicy = GROUP_BY_PRIO, .pgfailback = -FAILBACK_IMMEDIATE, .rr_weight = RR_WEIGHT_NONE, .no_path_retry = NO_PATH_RETRY_UNDEF, .minio = DEFAULT_MINIO, .checker_name = READSECTOR0, }, CHANGE TO: /* * Hitachi controler family * * Maintainer : Matthias Rudolph * Mail : matthias.rudolph@xxxxxxx */ { .vendor = "{HITACHI,HP}", .product = "OPEN-*", .getuid = DEFAULT_GETUID, .getprio = NULL, .features = DEFAULT_FEATURES, .hwhandler = DEFAULT_HWHANDLER, .selector = DEFAULT_SELECTOR, .pgpolicy = MULTIBUS, .pgfailback = FAILBACK_UNDEF, .rr_weight = RR_WEIGHT_NONE, .no_path_retry = NO_PATH_RETRY_UNDEF, .minio = DEFAULT_MINIO, .checker_name = READSECTOR0, }, { .vendor = "HITACHI", .product = "DF*", .getuid = DEFAULT_GETUID, .getprio = "/sbin/mpath_prio_hds_modular %d", .features = DEFAULT_FEATURES, .hwhandler = DEFAULT_HWHANDLER, .selector = DEFAULT_SELECTOR, .pgpolicy = GROUP_BY_PRIO, .pgfailback = -FAILBACK_IMMEDIATE, .rr_weight = RR_WEIGHT_NONE, .no_path_retry = NO_PATH_RETRY_UNDEF, .minio = DEFAULT_MINIO, .checker_name = READSECTOR0, }, Thanks a lot for your support Matthias Rudolph Hitachi Data Systems -- dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel