[Bugs] [Bug 1283410] cache mode must be the default mode for tiered volumes

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1283410

nchilaka <nchilaka at redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ON_QA                       |VERIFIED



--- Comment #3 from nchilaka <nchilaka at redhat.com> ---
With 3.7.5-7 build. Cache mode is the default now.
vol info shows as below:
[root at zod ~]# gluster v info metadata

Volume Name: metadata
Type: Tier
Volume ID: 23dcc876-5343-4ab9-b320-844e30e4a67c
Status: Started
Number of Bricks: 16
Transport-type: tcp
Hot Tier :
Hot Tier Type : Distributed-Replicate
Number of Bricks: 2 x 2 = 4
Brick1: yarrow:/rhs/brick6/metadata_hot
Brick2: zod:/rhs/brick6/metadata_hot
Brick3: yarrow:/rhs/brick7/metadata_hot
Brick4: zod:/rhs/brick7/metadata_hot
Cold Tier:
Cold Tier Type : Distributed-Disperse
Number of Bricks: 2 x (4 + 2) = 12
Brick5: zod:/rhs/brick1/metadata
Brick6: yarrow:/rhs/brick1/metadata
Brick7: zod:/rhs/brick2/metadata
Brick8: yarrow:/rhs/brick2/metadata
Brick9: zod:/rhs/brick3/metadata
Brick10: yarrow:/rhs/brick3/metadata
Brick11: zod:/rhs/brick4/metadata
Brick12: yarrow:/rhs/brick4/metadata
Brick13: zod:/rhs/brick5/metadata
Brick14: yarrow:/rhs/brick5/metadata
Brick15: yarrow:/rhs/brick6/metadata
Brick16: zod:/rhs/brick6/metadata
Options Reconfigured:
cluster.tier-mode: cache
features.ctr-enabled: on
performance.readdir-ahead: on







Also, file promotes and demotes are happening(sanity check)only when the
watermark criteria is hit.

changed the mode to test and test mode works as previous default behavior

Hence moving to verified

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