[Bugs] [Bug 1367842] New: RFE - capacity info (df -h on a mount) is incorrect for a tiered volume

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1367842

            Bug ID: 1367842
           Summary: RFE - capacity info (df -h on a mount) is incorrect
                    for a tiered volume
           Product: GlusterFS
           Version: 3.8.2
         Component: tiering
          Keywords: RFE, Triaged
          Severity: low
          Priority: low
          Assignee: bugs at gluster.org
          Reporter: dlambrig at redhat.com
        QA Contact: bugs at gluster.org
                CC: bugs at gluster.org, pcuzner at redhat.com
        Depends On: 1333220
            Blocks: 1339689



+++ This bug was initially created as a clone of Bug #1333220 +++

Description of problem:
With a teired volume, a df -h shows a capacity equal to the hot + cold tiers.
This is wrong, since the hot tier is a cache layer not an extension of the
volumes capacity.

Version-Release number of selected component (if applicable):
tested against 3.7.10

How reproducible:


Steps to Reproduce:
1. create a tiered volume
2. mount it and run df -h 


Actual results:
df -h shows a combined capacity view of hot+cold

Expected results:
df -h should show the capacity of the cold tier, since the cache layer is
'transient'. 

Additional info:


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1333220
[Bug 1333220] RFE - capacity info (df -h on a mount) is incorrect for a
tiered volume
https://bugzilla.redhat.com/show_bug.cgi?id=1339689
[Bug 1339689] RFE - capacity info (df -h on a mount) is incorrect for a
tiered volume
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