Linux SAN drive indeferent behaviour

We have two mount point in Linux on  HP 3-PAR SAN facility.
But those mount points are behaving strange as below.
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Name of the both are as below
 Xxx_data
Xxx_backup
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This two Mount point are said to be each 300 GB SAN drive allocated to this Linux server from our corporate Data center .
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Issues in brief:

•      /xxx_data mount is showing -56GB in used. Which we didn’t use or put any data in it. But it is still showing this size

 *Fig A1 56 GB Extra Data  (Attached)•	/xxx_data mount is showing -56GB in used. Which we didn’t use or put any data in it. But it is still showing this size*************************************************************************************
•      Created folders (data) are automatically disappearing  from /xxx_data mount point.

 * Fig B1 Data Disappear •	Created folders (data) are automatically disappearing  from /xxx_data mount point.***************************************************************************************8

•      Whatever we copied/moved any files  to /xxx_backup mount point it is automatically reflecting to /xxx_data mount point.

*Fig C1  Data Duplicating•	Whatever we copied/moved any files  to /xxx_backup mount point it is automatically reflecting to /xxx_data mount point. ******************************************************************************************

I thought it was HP 3 PAR agent issue, and verified if it is installed properly  as below  ( it seems to be fine)
 
*Fig D1  HP 3 Par Agent Verfivation
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Mount Point on this Linux servers are as below

 *Fig E1  Mount Points
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My doubts are as below,

1.      Is it problem of SAN drive allocation or anything related to it ?
2.      Or is it some problem in  creating this folder and mounting them in OS
3.      If it is not  issue  of mounting , how can I confirm that ?
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Additional info : I have edited fstab and  so that,  even if  server is restarted ,this mount points are not lost . and I confirmed the stability by restarting the server.

Awaiting your kind inputs .
C--Users-mfiroze-Desktop-Fig-D1--HP-3-Pa
C--Users-mfiroze-Desktop-Fig-E1--Mount-P
FiruITAsked:
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andyalderSaggar maker's framemakerCommented:
Please verify that no other host has access to the LUN. It is either another host accessing the same LUN or multipath not working correctly that is causing the problem.
sysramsCommented:
Can you please paste multipath -ll cmd output here. I suspect the lun has two paths, those two are mounted in two different mount points may cause these kind of issues.

What is the OS ver/release and what is HBA model and firmware version you are using?

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FiruITAuthor Commented:
Actually the LUN's assigned by my SAN admin was not proper , he said he assigned two LUN's , but infact he only assigned me one . I was seeing same LUN via two different  Path's.
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