[HPADM] Fwd: SHMMAX kernel variable

Sorry to post this message on this list. It has some thing to do with Data
Protector on HP-UX cell manager server that related with Solaris. Does any
one know a solaris email user group that I could use. Thanks.

Stephanie

---------- Forwarded message ----------
From: Schupsky, Mark D <mark.d.schupsky@xxxxxxxx>
Date: Sep 19, 2006 10:29 AM
Subject: RE: [HPADM] SHMMAX kernel variable
To: Stephanie C <stepchung@xxxxxxxxx>


Stephanie,

Umm, wrong list. But I have this entry on one of our Solaris 8 machine's
/etc/system file:

set shmsys:shminfo_shmmax=268435456

I'm pretty sure all you do is edit that file and reboot to put it into
effect.

Mark



------------------------------
*From:* hpux-admin-owner@xxxxxxxxxxxxx [mailto:
hpux-admin-owner@xxxxxxxxxxxxx] *On Behalf Of *Stephanie C
*Sent:* Tuesday, September 19, 2006 12:49 PM
*To:* HP-UX Group
*Subject:* [HPADM] SHMMAX kernel variable


I have the following error on HP-UX Data Protector (Omni Back) backup when
it tried to do the backup Solaris 8 server:
"Cannot allocate/attach shared memory (IPC Cannot Create Shared Memory
Segment
System error: [22] Invalid argument ) => aborting."

I googled this error and it shows the problem with "The backup fails because
the SHMMAX kernel variable, which limits the maximum size of shared memory
block..."

I am new with Solaris and never changed its kernel settings. Googled tells
me to change in /etc/system file and reboot the system. My solaris 8
/etc/system file does not have any kernel parameters in it.

My Solaris questions:

- How do I know what is the current value of kernel setting? (some kernel
display like sam in hp-ux?...)
- How to set the kernel in /etc/system file?
- What is the correct/appropriate value to set for the kernel? and how to
calculate the value?
- Is there a way to set the kernel without system reboot?

Thanks for the help.

Stephanie

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