You can replace HBAs without stopping any applications when all of the following conditions are satisfied:
This function only applies to the operating systems in which HBA replacement is supported by Hitachi Compute Blade.
The host allows HBA replacement, and the new HBAs are of the same type as the HBAs you replace.
Multiple HBAs are used, and the paths that pass through these HBAs are connected to the same LU.
Multiple paths to the LU are active.
HDLM is in a Hitachi Compute Blade environment.
For details on how to replace HBAs, see Procedure for replacing HBAs.