Description of problem:

On a physical system installed with Satellite 6.3 when we try to upgrade to 6.4 Beta, the foreman-maintain upgrade check failed due to disk speed check. 


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Check for recommended disk speed of pulp, mongodb, pgsql dir.: 
| Finished                                                                      

Disk speed : 79 MB/sec                                                [FAIL]
Slow disk detected /var/lib/pulp mounted on /dev/mapper/rhel_dell--per320--3-root.
             Actual disk speed: 79 MB/sec
             Expected disk speed: 80 MB/sec.

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The Storage Guidelines section in the installation guide[1] says the disk speed should be "60 - 80 Megabytes per second" 


Current disk speed check of 80 MB/s needs to be changed to 60 MB/s. 

[1] https://access.redhat.com/documentation/en-us/red_hat_satellite/6.4-beta/html-single/installation_guide/#hardware_storage_prerequisites