- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- SAP R/3 running on HPVM ----Consultation reqd urge...
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Forums
Discussions
Discussions
Discussions
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
11-09-2010 05:20 AM
11-09-2010 05:20 AM
SAP R/3 running on HPVM ----Consultation reqd urgently
i have sap r/3 (SGeSAP) runing fine on RX 3600 with 2 Processor /8GB memory having DB package and CI package on another RX3600 with same config...i have the DR with RX6600 .RX 6600 Configured with 2 Guest machine .One guest is having 4 processors with 12GB memory (For DB and ci) and another VM Guest having 4GM memory/2 Processor .My problem is when i am moving sap r/3 From PR to DR ,DR server load is too high and getting hung due to high memory issue on DB .What will be the best configuartion ?...is it HP VM is recommended for Database ?
rgds
trng
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
11-09-2010 05:53 AM
11-09-2010 05:53 AM
Re: SAP R/3 running on HPVM ----Consultation reqd urgently
You can run the oracle database/SAP installation on a HP IVM - in fact, I am on two of them. I wouldn't want to do it with a heavily loaded database as a permanent solution; however, it sounds like you're working a disaster recovery excercise.
If I'm reading your configuration correctly, your production environment is a pair of rx3600s with 2xprocessors and 8 gigs of ram each.
Your DR environment is one HP IVM with 4 processors and 8 gigs and one HP IMV with 2 processors and 4 gigs of ram.
So, basically, one HP IVM has 1.5x the ram and double the cpus while the other has half the ram and the same number of cpus as your production environment.
Assuming all the networking is configured, you should be able to run the database on the larger of the HP IVMs. You'll need to decrease the sga to run it in the smaller one.
One last note: I have to assume this is a home grown DR configuration - not something through someone like sungard. I would think you'd want similar hardware for a disaster recovery as your production environment. In a real disaster, your production environment is gone. You could be running on the DR environment for days, weeks, even months depending on what happened. Moving your production environment to an HP IVM for DR purposes doesn't seem like the best idea to me for reasons of performance, recoverability, and just sheer troubleshooting.
HP IVMs are great for testing, training, and development environments. I would be really hesitant to move a heavily loaded production environment to one...
Doug O'Leary
------
Senior UNIX Admin
O'Leary Computers Inc
linkedin: http://www.linkedin.com/dkoleary
Resume: http://www.olearycomputers.com/resume.html
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
11-09-2010 07:10 AM
11-09-2010 07:10 AM
Re: SAP R/3 running on HPVM ----Consultation reqd urgently
If you properly configured the prod systems to use the 8GB, then it stands to reason that it would not fit in a 4GB VM instance.
You may need to reconfigure the SAP extended memory to make it fit.
Is there a good reason you did not set the VM's to 8G+8G to match the production config?
For the CI instance and the DB do you have memory to spare? Stash an update/disp instances there?
Just put everything into a single large instances?
Thinking about placing SAP / DB instances, the Knowledge On Demand (KOD) presentations have a pretty good SAP presentation by Bob Wynne.
You can find all KOD topics under:
http://h71028.www7.hp.com/enterprise/w1/en/os/hpux11i-kod-overview.html
SAP: http://hpbroadband.com/program.aspx?key=KSORMPDDDI
hth,
Hein.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
11-09-2010 08:02 AM
11-09-2010 08:02 AM
Re: SAP R/3 running on HPVM ----Consultation reqd urgently
In my DR I Have only one RX6600 with total 28GB memory and 8 processors.In that we have configured two IVM Guest .First one with 12GB Memory and 4 processors for running both DB and CI .Second VM is with 2 Processor and 4GB memory as application server for users to connect ...Infact this setup was designed by HP ..Everything will work for 2-3 hours and system will hang due less memory ...My First question is how much more maximum memory reqd on first VM to run the application without any issue as like PR setup.Second question is, can i destroy first VM and keep only one VM for users to connect(application server) and install Database/application on base machine itself ..i guess that will be a good idea ...
rgds
trng
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
11-09-2010 08:38 AM
11-09-2010 08:38 AM
Re: SAP R/3 running on HPVM ----Consultation reqd urgently
If that doesn't work for you, then you need a way to drop in alternate init.ora file (for example, a good starting point) before you actually bring the Oracle server up.
I've done this thing at times as well, and it's just a case of having your startup script have a look around at the environment and determine which init.ora file it should use, etc.
I just checked the hostname, however you could be more robust and check free memory (try a script using ioscan -C processor for logic maybe).
excerpt...
typedef -i cpucount
cpucount=$(ioscan -C processor|wc -l)-2
# smaller standby machine check
if [ $cpucount -eq 2 ]
then
cp -p
else
cp -p
fi
# Start your Oracle database environment...
Make sure that the two files init.ora.small and init.ora.large are manually kept up to date (eck), and that they are owned by your Oracle database user, so that the "cp -p" command works and preserves ownership for your Oracle database user so that it can read the file.
Of course, instead of checking processor count:
if [ $cpucount -eq 2 ]
it would be simple to check the hostname instead of cpucount, if the name of the DR virtual machine is always known.
if [ $(/usr/bin/hostname = "drhost" ]
then ...
Just a side note -------------
Instead of:
typedef -i cpucount
cpucount=$(ioscan -C processor|wc -l)-2
You can still use the older funkier style:
let cpucount=$(ioscan -C processor|wc -l)-2
The "let" clause indicates to the shell that the variable cpucount is an integer. I still use it a times because it's more compact (which I like) though it bugs me when I use it because when scripts declare variables in a bunch with "typedef -i" you gain better readability, and also avoid the snickers of folks knowing you're old just by looking at your scripts. :-)
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
11-10-2010 01:12 PM
11-10-2010 01:12 PM
Re: SAP R/3 running on HPVM ----Consultation reqd urgently
I would want to keep that Hypervisor lean, mean and clean.
Can yo not just shuffle some memory assignments around?
My friend David Bernardo, who sadly passed away just yesterday :-(, implemented "dynamic memory" through the use of a balloon driver for HPUX guests to allow the memory size of a guest to be changed without a reboot. I thought that was out and available is it not?
hth,
Hein