setting up a new system

[Mark Greene_1]

I am setting up a new system to which will will be move an application from an old DG system. I've already moved the logins, home dirs, crontabs, setup ntp, hostname, dns connectivity, obviously the IP, pointed sendmail to our mail relay host, installed ignite and done a make_recovery, and some other little stuff.

Is there a faq or does anyone have a list of setup items for a new system? I want to be sure I have all the OS-related stuff setup before moving over the appliaction and the data.

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mark

[Sachin Patel]

Mark,
compare kernal parameter with old system.

[harry d brown jr]

How about things like "profiles", file ownerships, the /etc/services file, getty stuff, .rhosts, hosts.equiv... Does the DG have any "special" devices that are being moved to the HP, if so, you'll need to look at the device file equiv's. Versions of software, like perl. You covered most already, and I can't think of much more.

live free or die
harry

[John Bolene]

Coming from a DG (data General?), there may be no correlation with kernel parms.

Hopefully you are mostly current on patches.

Some kernel parms may need changed from default.

[A. Clay Stephenson · Accepted solution]

Hi Mark:

The main things left would be to make sure that maxdsiz, maxtsiz, and maxssiz are about as large or larger; if your dbc_max_pct is at the default 50%, you almost certainly want to reduce that to the 10-15% range or better yet set bufpages to a non-zero value. I would also compared shared memory, messages, and semaphore related tunables if your application uses any IPCS.


You also left off two potential biggies: 1) are the mountpoints the same? 2) Have you set up print queues with the same names?

Also, you did not mention the group file. Auto-mount maps?

Otherwise, you seem pretty close.

[Mark Greene_1]

Thanks all for the replies; some stuff I had since taken care of, some not, particularly the /etc/services and the kernel parms.

I checked what Clay suggested, and found dbc_max_pct at 50 and dbc_min_pct at 5. Why is 10-15 better, and what is good for the min?

Also, when I first launched SAM and selected kernel parameters, I got a message stating that shmmi was being changed from 0x800 to 0x400. I canceled the change, not knowing for sure if this was a good idea or not. Any insight here?

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mark

[James R. Ferguson]

Hi Mark:

It is perfectly OK to let SAM adjust the kernel setting. This sometimes occurs the first time you choose to reconfigure your kernel after SAM has been patched. What generally has happened is that new kernel parameter limits have been defined.

Regards!

...JRF...