64 bit File Size Limit

[Magesh_bala]

Hi,

I know that in a 32 bit we cant write more than 2GB to a file, I want to know what is the 64 bit file size limit?

In my current project I am able to write more than 34 GB to a sequential file and a dataset. I am wondering what is the 64 Bit file size limit?

Regards
N.Magesh

[antonyraj.deva]

Magesh,

I know that in a 32 bit we cant write more than 2GB to a file, I want to know what is the 64 bit file size limit?

We can write more than 2 GB in 32 bit also. Infact 32 or 64 bit doesn't decide the maximum file size, but an Environment variable does.

--Tony

[ArndW]

the number of bits (32 or 64) defines the largest addressable size, so the answer would be 2^^31 for 32 bit systems and 2^^63 for 64 bits systems; thus the answer is 9223372036854775808

[chulett]

In other words, way bigger than you need to worry about, I'd wager.

[ray.wurlod]

Most operating systems impose a smaller limit than the theoretical limit, typically 1TB or 9TB.

[nagarjuna]

Also Check ulimit command to see the limit on the file size .