Advantages of HP-UX over AIX,Solaris and other Unix falvours

[R. Sri Ram Kishore_1]

Hi,

Take a look at these threads:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=110895 (Some good links in this post)
http://ccm.redhat.com/bboard-archive/webdb/0005Hq.html
www.giac.org/practical/GSEC/Haral_Tsitsivas_GSEC.pdf
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=581965 (Discussion on the security features of various OSes)
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=217009 (Differences b/w HP-UX and Linux)
http://cr.yp.to/docs/unixport.html
http://barnson.org/node/view/13
http://www.over-yonder.net/~fullermd/rants/bsd4linux/bsd4linux1.php
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=738157

HTH.

Regards,
Sri Ram

[R. Sri Ram Kishore_1]

Hi again,

You might also want to take a look at the AIX/HP-UX Interoperability Guide available here:
http://www.interex.org/tech/9000/Tech/aix_hpux_interop_v2/

HTH.

Regards,
Sri Ram

[Jan van den Ende]

Before you start to read this:

As stated above, OS preference sometimes takes on religieous proportions, and this might be considered preaching by an apostel.


Being a (nearly) pure VMS man, and, considering the original question,I have read this stream with the sincere intention NOT to interfere, yet with much interest.

But Merijn really forced me to react!!!


ANTI AIX:
- Everything is shared,


First: that is not NEARLY true!! (at least not compared to the way things are shared in VMS).
Second, and most important: HOW the heck can you call THAT an argument ANTI AIX???
The one single great thing about good/serious clustering _IS_ the sharing!!
Sharing of periferals, of files, of management, of security, of redundancy,...

In VMS discussions about various clusters, the usual generalisation is:
VMS clusters are (nearly, and more so with every release) Shared-Averything clusters,
while the others (in varying degrees) are nearly completely Shared-Nothing configurations.
Even the file systems are some (admittedly, clever) form of NFS-with-automated-failover.

AFAIK, only Oracle-RAC does access (only the database-) files from different nodes directly, coordinating the access by a distributed locking mechanism. And to allow that, the drives holding the database files may not cooperate in the filesystem, but MUST be presented as whole-drive raw devices!

Imagine ANY file on ANY drive, and ANY record WITHIN those files (oops, native multi-indexed files, transparantly handled by the OS itself!), just imagine ANY individual adressable entity in the filesystem, to be DIRECTLY accessed from ANY node (up to 96 of them, up to 800 KM separated), ALL that access fully under control of the Distributed Lock Manager!
All part of the OS itself.

Hardware additions or reductions? No downtime necessary! OS or other software upgrades? No downtime!

The cluster I am managing at the moment was booted april 13 1997, and is still running.
Yet in that time half it it was moved 7 KM, and ALL hardware, up until the last screw, was replaced. Of course this DOES take some planning.

Security-wise: even 4000+ hackers in the 3-day DEFCON-9 hackers contest, having been given access via Apache, and to individual accounts with command-line access, could NOT compromise an out-of-the-box VMS system!

Negative points for VMS exist as well, of course:
--- it is relatively expensive to start with (although various surveys consistently rate it having by far the lowest TCO, especially for 24 * 365 systems.
--- for years there has been ABSOLUTELY no marketing;
--- which has led to reduced ISV support
--- and has removed it from CIO awareness


--

For those that have become a bit curious:
it can perhaps be interesting to mirror MY behavior.
I try to make it a habit to follow the HPUX (and Tru64) ITRC. Just to get an indication of the kind of questions that arise, and, much more revealing, what solutions be shown to exist by 'the ITRC community'.

http://forums1.itrc.hp.com/service/forums/parseCurl.do?admit=716493758+1105191206595+28353475&CURL=%2Fcm%2FFamilyHome%2F1%2C%2C288%2C00.html

Proost.

Have one in me.

Jan

[Mobeen_1]

Yogesh,
Also try to look at the following links
http://www.osdata.com/oses/hpux.htm
http://www.osdata.com/oses/aix.htm
http://www.osdata.com/oses/solaris.htm

regards
Mobeen