How to find whether system 390 server is 31 bit or 64 bit

Question

I have a server running RHEL on s390 hardware. How do I find whether the server is 31 bit or 64 bit?

uname -a gives:

Linux <hostname> 2.6.32-131.17.1.el6.s390x #1 SMP Thu Sep 29 10:42:48 EDT 2011 s390x s390x s390x GNU/Linux

colealtdelete · Accepted Answer · 2013-04-02 15:25:25Z

7

Running getconf LONG_BIT will tell you if it is 64 bit or not:

[cole@localhost ~]$getconf LONG_BIT
32

answered Apr 2, 2013 at 15:25

colealtdelete

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pauska · Accepted Answer · 2013-04-02 14:53:27Z

0

According to the Wikipedia Page for the S/390 it's a 31/32-bit system. The "z" architecture replaced this series and introduced 64-bit.

answered Apr 2, 2013 at 14:53

pauska

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On z architecture, would uname -a also read as s390?
– Daniel Kats
Apr 2, 2013 at 14:54
I have absolutely no idea. Have you tried our sister site unix.stackexchange.com ?
– pauska
Apr 2, 2013 at 14:56
Possibly try getconf LONG_BIT - it should tell you if it's 64 or not.
– colealtdelete
Apr 2, 2013 at 14:57
@Cole getconf LONG_BIT prints 64, which prob. means it's 64 bit. Thanks! Extra points if you phrase that as an answer.
– Daniel Kats
Apr 2, 2013 at 15:23
@BlackSheep I guess this isn't a S/390 then?
– pauska
Apr 2, 2013 at 15:56

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Drt · Accepted Answer · 2013-04-05 08:41:13Z

0

uname -m

gives you bit size for your server

and you can also use getconf command.

answered Apr 5, 2013 at 8:41

Drt

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3 Answers 3