> 1) Can someone point me to the latest version of the documentation? > The following examples seem to show that the multipath(d) are not in sync > with the man. The uptodate information is the one shipped with the sources. It may have rotten parts ... but feel free to point them out for us to fix. > a) polling_interval > The man page and the comments in the multipath.conf say that the default > value is 5, but when I execute "multipath -t" when I didn't specified the > value in multipath.conf it says the polling_interval is 0. > I don't even know what 0 means. > Is "multipath -t" giving incorrect values? Is my reasonning wrong? Other? > Fixed as of today by commit 56753df50b08d67fb711e215a556d005f82ddf7b > b) path_grouping_policy > man says that the default is multibus. > Red Hat Documentation ( > http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/DM_Multipath/config_file_defaults.html > ) says the default is Failover. > I have no such default in either multipath.8 multipathd.8 and multipath.conf.defaults multipath.conf.annotated correctly points failover as the default policy > c) prio > man says default is none. > Red Hat Documentation ( > http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/DM_Multipath/config_file_defaults.html > ) says the default is const. > I have no such default in either multipath.8 multipathd.8 and multipath.conf.defaults has the correct const default. Fixed in multipath.conf.annotated though > d) Why "prio emc" gives "sda: emc prio: query command indicates error", > when I execute multipath -v2 -d with multipathd not running. And sda is > even in the blacklist. > > e) If I have EMC Clariion Disk Array, should I use: "path_checker > emc_clariion"? > Depends on the Clariion settings. Either that or alua > f) What is the correct getuid_callout: > - /sbin/scsi_id -g -u -s /block/%n (As old EMC document says) > - /sbin/scsi_id -g -u -s (As the man says) > - "/lib/dev/scsi_id --whitelisted --device=/dev/%n" (As > http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/DM_Multipath/config_file_defaults.html > says.) > The correct one is the one that works on your system. Different scsi_id version running on different kernel version have different behaviour. The internal default makes it work with latest kernel/scsi_id > g) There maybe more differences. I didn't check all. > Please do, if you have the means. Input is valuable. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
