Difference between PA-RISC and Integrity Servers

[ashutosh99]

Hi All,

I recently went to an interview and he asked me a very simple question. I had very little idea on the subject and couldn't answer him properly. I tried to google it, but I couldn't get a satisfactory answer. So, here goes nothing.

Ques : What are the differences between PA-RSIC & Integrity Server? And why did HP moved away from PA-RISC to a different architecture altogether? 

The only difference I know is that Integrity servers can host Windows as well as RHEL OS as well and PA-RSIC cannot.

Any input is really appreciated.

Regards,

Ashutosh Singh

P.S. This thread has been moved from HP-UX>General to  Servers > HP 9000. -HP Forum Moderator

[Dennis Handly · Accepted solution]

>And why did HP move away from PA-RISC to a different architecture altogether?

Unless you're working on a MBA and looking into historical business decisions, this is a moot issue.

Because PA-RISC was getting to a point where it was too expensive to get it to run faster.

The latest has 8 cores but PA-RISC only had 2

See these old topics:

http://h30499.www3.hp.com/t5/HP-9000/Difference-between-HP-PA-RISC-and-IPF-Itanium/m-p/3536289

http://h30499.www3.hp.com/t5/HP-9000/When-will-PA-RISC-be-discontinued-and-support-stopped/m-p/3767223

http://h30499.www3.hp.com/t5/HP-9000/Itanium-and-HP900/m-p/3834701

http://h30499.www3.hp.com/t5/HP-9000/parisc-itanium/m-p/3302067

http://h30499.www3.hp.com/t5/HP-9000/Itanium-or-PA-RISC/m-p/3048003

http://h30499.www3.hp.com/t5/HP-9000/Opininons-on-moving-from-pa-risc-to-Itainium2/m-p/3666982

http://h30499.www3.hp.com/t5/HP-9000/When-will-HP-stop-making-PA-RISC-boxes/m-p/3090675

>Integrity servers can host Windows as well as RHEL OS as well

Support for OS other than HP-UX, NonStop or OpenVMS were dropped some time ago.

[ashutosh99]

First, thanks Lisa198503 for moving this thread to the appropriate section and thank you Dennis for the reply.

Second, I now understand the differences. The decision to move from PA-RISC to Itanium was a business decision for HP. But, I didn't know that the support for Windows & RHEL OS were dropped. The wikipedia page for the Integrity servers still says that those OS are indeed supported. Can you please clarify this.

Thanks,
Ashutosh Singh

[Torsten.]

Please read the wiki again:

Microsoft announced that Windows Server 2008 R2 would be the last version of Windows Server to support the Itanium ...


Likewise, Red Hat Enterprise Linux 5 (first released in March 2007) was the last Itanium edition of Red Hat Enterprise Linux[ ....

http://en.wikipedia.org/wiki/Itanium_2#Itanium_2:_2002.E2.80.932010