device-mapper-multipath-0.4.9-111.el7.2

The device-mapper-multipath packages provide tools that use the device-mapper multipath kernel module to manage multipath devices.

This update fixes the following bugs:

* Previously, the DM Multipath service terminated unexpectedly when it attempted to add a feature to the features string of a built-in device configuration that had no features string. With this update, DM Multipath first checks if the features string exists, and creates one if necessary. As a result, DM Multipath no longer crashes when trying to modify a nonexistent features string. (BZ#1510837)

* Previously, Nimble devices used the default path_checker method, directio, which incorrectly failed on passive paths. With this update, the Nimble built-in configuration now specifies the TUR path_checker method instead. As a result, passive paths on Nimble arrays now have the correct path state. (BZ#1510839)

In addition, this update adds the following enhancement:

* DM Multipath now recognizes the prkeys_file option, which configures the reservation key for the paths of a multipath device. With this option, you can now use the mpathpersist utility without knowing ahead of time what reservation keys will be used and without adding them to the multipath.conf configuration file. As a result, it is now easier to use the mpathpersist utility to manage multipath persistent reservations in multiple setups. (BZ#1510834)

Users of device-mapper-multipath are advised to upgrade to these updated packages, which fix these bugs and add this enhancement.