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Forum Topic - Max disk size supported by QNX 6.5.0:

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Jagat Bhusan(deleted)

06/07/2019 2:18 AM

post119736

Max disk size supported by QNX 6.5.0

Hi,

What is  the maximum disk (hard disk & USB) size supported by QNX 6.5.0 when formatted with QNX file systems such as QNX
 4 & QNX6  (fs-qnx6.so) ?

Regards
Jagat

Albrecht Uhlmann

06/07/2019 4:09 AM

post119738

Re: Max disk size supported by QNX 6.5.0

See http://www.qnx.com/developers/docs/6.5.0SP1.update/#./com.qnx.doc.neutrino_user_guide/limits.html. There is a 
specific topic on filesystem limits.

HTH
-Al

Jagat Bhusan(deleted)

06/07/2019 4:32 AM

post119742

Re: Max disk size supported by QNX 6.5.0

Hi, 

Thanks for your immediate response.
In the link provided by you , it is mentioned as :

For QNX6 FS
-----------------
Physical disk sector
    32-bit (2 TB), using the devb API. 

Does it mean that the max size of disk / USB is limited to 2TB ? 

For QNX4 FS
-----------------
Disk size
    2^64 bytes; limited by the disk driver. 

Does it mean that the max size supported by qnx4 fs is 2^64 bytes.
If so, what is the meaning of "limited by disk driver" ? How to know about the max size supported by the driver ?

Thanks

Jagat



There is an expli

Jagat Bhusan(deleted)

06/13/2019 9:23 AM

post119756

Re: Max disk size supported by QNX 6.5.0

> Hi, 
> 
> Thanks for your immediate response.
> In the link provided by you , it is mentioned as :
> 
> For QNX6 FS
> -----------------
> Physical disk sector
>     32-bit (2 TB), using the devb API. 
> 
> Does it mean that the max size of disk / USB is limited to 2TB ? 
> 
> For QNX4 FS
> -----------------
> Disk size
>     2^64 bytes; limited by the disk driver. 
> 
> Does it mean that the max size supported by qnx4 fs is 2^64 bytes.
> If so, what is the meaning of "limited by disk driver" ? How to know about the
>  max size supported by the driver ?
> 
> Thanks
> 
> Jagat
> 
>

Jagat Bhusan(deleted)

06/13/2019 9:24 AM

post119757

Re: Max disk size supported by QNX 6.5.0

I am still waiting for a response to the query .

Albrecht Uhlmann

06/20/2019 5:11 AM

post119762

Re: Max disk size supported by QNX 6.5.0

I think this question can only be answered by QSS engineers because the disk drivers are not public source.

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