Description of problem:

When we mount a tier volume (cold tier : Distributed-Disperse | 2 x (8 + 4) | Hot Tier Type : Distributed-Replicate 4 x 2 = 8) in windows client and then we try to create a new folder in share. It leads to hang of the mounted share and later disconnects the mount.
The above scenario is verified with smbclient and is very much reproducible.
The error it shows in smbclient is as follows :-

smb: \> md xyz
NT_STATUS_IO_TIMEOUT making remote directory \xyz 

The above scenario is working fine with samba xfs share and also with other volume type eg :- Disp-rep & Distribute

Version-Release number of selected component (if applicable):
glusterfs-3.7.9-3.el7rhgs.x86_64
samba-client-libs-4.4.2-1.el7rhgs.x86_64
Windows Client 8.1

How reproducible:
Always

Steps to Reproduce:
1. Tier set up with samba (cold tier : Distributed-Disperse | 2 x (8 + 4) | Hot Tier Type : Distributed-Replicate 4 x 2 = 8)
2.Mount the volume in windows client
3.Try to create a new folder by right click on the share.

Actual results:
Share mount hangs & later leads to disconnect

Expected results:
The new folder should get created without any side effects

Additional info: