21.14.1. Resizing Fibre Channel Logical Units
After modifying the online logical unit size, re-scan the logical unit to ensure that the system detects the updated size. To do this for Fibre Channel logical units, use the following command:
To re-scan fibre channel logical units on a system that uses multipathing, execute the aforementioned command for each sd device (i.e.
sd2, and so on) that represents a path for the multipathed logical unit. To determine which devices are paths for a multipath logical unit, use
multipath -ll; then, find the entry that matches the logical unit being resized. It is advisable that you refer to the WWID of each entry to make it easier to find which one matches the logical unit being resized.