Calculating how many managed servers you need.

Hi,
Does anyone know a BEA webpage were it tells you, on the lines of :
If you have 5000 customer hitting your weblogic cluster you only need 1 managed server. If you have 30,000 you need two managed servers. If you have 500,000 you need three.
Does anyone know of a performance page like this?
Regards,
Alistair.

There is no such performance numbers from BEA. I think you need to rely on capacity planning process to estimate number of server based on your workload and performance requirements.
http://dev2dev.bea.com/pub/a/2002/11/Hazarika.html
http://edocs.bea.com/wls/docs81/capplan/capfact.html#1009720
There are some benchmark results for WebLogic are available at
http://edocs.bea.com/wls/docs81/capplan/capbase.html#1054891
http://www.spec.org/jAppServer2004/results/jAppServer2004.html
-Jayesh

Similar Messages

How many managed Servers do you need?

Hi,
One thing that has come up time and time again, is when trying to think about a new project and a new WL domain, is trying to know how many WL Managed Servers do you need?
Does BEA have some sort of metrics which says ok for this amount of input we recommend you having 4 managed servers on 4 single boxes?
And is there think on have 2 managed servers on 1 box or 2 managed servers on two boxes?
Any Help Appreciated.
Kind Regards,
Alistair.

Hi :-D
I don't believe BEA have guide lines on how many Managed servers are required based on Metrics. You could look at some performance evaluations but it's really only relevant if your application acts in the same way.
Cheers,
Doug.

How many problems do you need to have with a mac book pro to get it replaced i have had 6 problems and they say they have fixed everything and somthing new happends

how many problems do you need to have with a mac book pro to get it replaced i have had 6 problems and they say they have fixed everything and somthing new happends
I have had thehad the:
ram replaced
Battery
Audio
Trackpad
os operating system
fans
And they still won't replace the laptop for me worst buy ever but i have had a imac for 2 months and nothing at all wrong .

You could try calling Apple and ask for Customer Relations.
From Readers Digest-February, 2005
How to Complain
You call customer service to complain about a product, and you hang up angrier than when you started. That’s customer rage, a feeling experienced by millions of people with a major complaint, says Scott Broetzmann, president an American firm that tells companies how to offer the best customer service. His secrets to getting good service:
Have a goal
If you want your product repaired, say so. Want an apology? Speak up.
Keep it short
Focus on one problem, and be succinct.
Stick with it
You have to invest the time it takes. Don’t get what you want? Ask for a supervisor.
Skip ultimatums
Don’t threaten not to do business with them again. Why should they help you if you won’t buy from them in the future?
Plead your case
Many companies have information such as how much money you’ve spent with them and how often you complain. If you’re a good customer, they may be more willing to help.
Be nice
You’re unlikely to get what you want if you’re rude.
Good luck.

Getting feedback -- how many reviewers do you need?

I'd like to draw on the experience of this group.
The Beta of our first training lesson is complete. We did a careful internal review with a group of subject experts who offered detailed feedback.
Next, we offered it to a variety of managers and their staffs -- the kind of people who would either take the training or send their staff to take it.
Of that group (between 500-1K people), we had 32 people offer to review the lesson and send in comments of their own free will.
However, of the 32, only five brave individuals have sent in feedback as of the deadline. Life is busy, etc.
I know that in UX design and webpage design, you can get very good usability testing even with a small group. A group of 5-10 representative people will catch almost all of the problems you are trying to find in testing.
What is your experience with reviewing Captivate training?
In this case (unlike usability), we are not asking people to accomplish specific tasks, but to simply take the lesson and send their feedback on both style and content.
Is my small group of five (somewhat representative users) enough? Or do I need to seek more? And, in your professional opinion, how many more will catch what we need to change?
Thanks in advance!

My advice is to run with the sample reviews you currently have, make any changes that were highlighted as necessary, fix any bugs that came to light, and then get the course out in the wild as quickly as possible.
There's this perception in some manager's (and Captivate developer's) minds that you can't release the course "until it's perfect". This is a mistake, because the course will never be perfect according to somebody, and you will never be able to get it released.
So waiting for everyone to be happy with your course will result in huge delays, by which time someone else will not be happy, or the business process will have changed, or the management team will have changed, or...you get the picture.
So cover off any glaring errors found in the review, and get it out there ASAP. You can fix anything else that comes to light in 6 or 12 month's time when it's time to do the inevitable updates to content. If there's some other showstopper that's "discovered" before then, do the change and publish an updated version.
These constant changes are what make using CD ROMs to deliver your course a bad proposition. Totally online is the way to go. You can put up an update overnite and nobody is the wiser.

How many backups do you need to have it wrong?

Everythime you put the plug into your computer the ipad is synconising, updating and backing up, loads and loads of precious time there spent in (you think) your own interest: you never know something can go wrong.
However when you really need that backup there you go it is a failed one.
Everything started when I found that the new ios5 was now available, I have an Ipad 1.
Ok, I backup and synchronise, etc.etc. The day comes I am ready to update the ios5. I begin with a nice "backup failes error -50000". ok can happen,
I again rebackup, all seems well and then "backup failed error -50000". By the way itunes had already eaten 42 gigs out of my hardrive.
Lets try from a different computer then, I have up to five.
Again, backup, synchronise, loads of time spent, where nearly there 99%. No Apps working, the wifi is off. And again "backup failed -50000".
Ok I have a previous back up which went well, I can always use that, I (wrongly) think.
Ok go frward IOS5. Of course it wants to backup again, I say yes, why not, I've spent already four hours like this. It fails and goes on putting the IOS5.
What a surprise when I find that the blooming think doesn't work at all, I actually attach it to restore the old backup and it replies "failed backup": excuse me? what?
I push the restore button and I find myself with the IPAD asking to attach it to the itunes while the itunes is sinchronising to whom I do not know, because te ipad is not respondng!
Then I find the bar (the one that tell you the ipads capacity, which oscilates between colours.
I was very happy till now, but I can't believe that after a year of backups and total confidence in the machine, I have been wiped out of my own memory, everything..........
So what do I do now? do I tell th F....Device it is new? do I restore form the icloud I do not have or do I believe n the third choice which does not work as the other two: restore from Itunes backup. Restore what? Recover what?
Very PO sorry dissapointed, this IOS5 is a FFraud.

You could try calling Apple and ask for Customer Relations.
From Readers Digest-February, 2005
How to Complain
You call customer service to complain about a product, and you hang up angrier than when you started. That’s customer rage, a feeling experienced by millions of people with a major complaint, says Scott Broetzmann, president an American firm that tells companies how to offer the best customer service. His secrets to getting good service:
Have a goal
If you want your product repaired, say so. Want an apology? Speak up.
Keep it short
Focus on one problem, and be succinct.
Stick with it
You have to invest the time it takes. Don’t get what you want? Ask for a supervisor.
Skip ultimatums
Don’t threaten not to do business with them again. Why should they help you if you won’t buy from them in the future?
Plead your case
Many companies have information such as how much money you’ve spent with them and how often you complain. If you’re a good customer, they may be more willing to help.
Be nice
You’re unlikely to get what you want if you’re rude.
Good luck.

How many times do you need to reinstall, reset, uninstall?

and the thing still won't function properly. i mean who really cares. it doesn't have a good sound anyway, and it will probably get lost in the first 30 days.
Message was edited by: mainflash

Only once.
What is the specific issue that is occurring?
Most AirPlay and HomeSharing issues are the result of network problems.

Q: How many Users do you serve w. your OES11-Infrastructure?

Reason for this - at first glance - stupid- question is the following:
We migrated (or Novell forced us to) from our low power (two HL DL360 G3 and 2 DL360 g4 one G5) 6.5 Cluster to a very juicy (6xDL360 G8, tons of proccessors) OES 11 cluster. We serve
approx. 1600 - 1700 Clients. Today everything stopped some of the Cluster Nodes didn't respond. This never happend in our old Cluster!
The reason was or IS by "Enterprise" Design:
DMESG: ipv4: Neighbour table overflow. !!!! Are we the only ones in the (small Novell) World who serves more than 1000 Clients???? WHY is there a limitation in the IP Cluster stack???
Did one EVER tested that. Should we better migrate to M$???
ip neigh show | wc -l --> shows 1021 entrys
sysctl net.ipv4.neigh.default.gc_thresh3
net.ipv4.neigh.default.gc_thresh3 = 1024
Means one cluster Node can handle 1024 connections. What if on one Node runs the DNS server? Only 1020 of 1600 Clients get an answer! Cool enterprise solution boys!
VERY angry!

On 03/25/2014 04:56 AM, jottschi wrote:
>
> Reason for this - at first glance - stupid- question is the following:
> We migrated (or Novell forced us to) from our low power (two HL DL360 G3
> and 2 DL360 g4 one G5) 6.5 Cluster to a very juicy (6xDL360 G8, tons of
> proccessors) OES 11 cluster. We serve
> approx. 1600 - 1700 Clients. Today everything stopped some of the
> Cluster Nodes didn't respond. This never happend in our old Cluster!
> The reason was or IS by "Enterprise" Design:
> DMESG: ipv4: Neighbour table overflow. !!!! Are we the only ones in the
> (small Novell) World who serves more than 1000 Clients???? WHY is there
> a limitation in the IP Cluster stack???
I'm sorry to hear about the lack of availability of the cluster nodes. I
am sure it is frustrating to have a system configured to be
highly-reliable (via clustering) to fail due to default settings. With
that said, this is a default Linux setting, and you're welcome to change it.
> Did one EVER tested that. Should we better migrate to M$???
I do not understand what you're asking.... did anybody test this on large
broadcast domains?
> ip neigh show | wc -l --> shows 1021 entrys
Wow, well that's quite a few. I think this number indicates something you
do not realize, though. While something like 'ss' or 'netstat' will tell
you how many layer three (IP) or four (TCP/UDP) connections your system
has, that number is not reflected by 'ip neigh', so usually the number of
clients your system has is limited in the list of neighbors by quite a
bit. For example, if I make a connection on my laptop (openSUSE, but same
default for my neighboring table) to Google, I can see that I have a fair
number of network connections total as shown:
Code:
me@mybox:~/Desktop> /usr/sbin/ss -planeto | grep -c ESTAB
61
but that's only tangentially related to the number of neighbors my laptop
sees:
Code:
me@mybox:~/Desktop> ip neigh
192.168.1.20 dev eth0 lladdr 00:1d:09:03:54:02 STALE
192.168.1.254 dev eth0 lladdr 00:1e:2a:74:66:35 STALE
192.168.1.1 dev eth0 lladdr f8:8f:ca:40:7a:1c REACHABLE
192.168.255.50 dev br8 lladdr ac:d3:58:ae:8e:ac STALE
How can that be? I have at least eight connections to unique remote
machines, so shouldn't I have at least eight listings in 'ip neigh'
output? The answer, of course, is 'no' because what you see from 'ip
neigh' are the cached addresses found via ARP, and ARP only matters within
the current broadcast domain, meaning on your local network before you hit
any routers. Even though I'm connected out to eight machines, all my
local routing table needs to care about (despite being VPN'd to a few
places and therefore having a few extra networks considered semi-local)
are the server, router, another router, and printer. Also, this number,
as you can see above, has entries become stale pretty quickly. I think
that time period is, again by default, something like thirty seconds,
since there is no guarantee from one second to the next that a given
server, workstation, or other node on the local network will still be
there. After something is stale the system just uses ARP again to see
what's still out there.
> sysctl net.ipv4.neigh.default.gc_thresh3
> net.ipv4.neigh.default.gc_thresh3 = 1024
Yes, this is a default for the Linux kernel in general. You're welcome to
tune it using sysctl, or probably via Yast so that it is stored to be used
after rebooting (and for the nice simple UI, if you're into that kind of
thing).
> Means one cluster Node can handle 1024 connections. What if on one Node
> runs the DNS server? Only 1020 of 1600 Clients get an answer! Cool
> enterprise solution boys!
No, it means that a given box, by default, can handle 1024 connections
from the local network. A typical Class C network, for example, only has
254 possible nodes, so only 253 connections. I've seen enterprises do
some supernetting to get things like 1022 nodes possible in a network, and
sometimes even fill that, but that's it. I have been on networks that had
addresses handed out from a Class B-like range (172.16.x.x) or even a
class A range (10.x.x.x) but those networks never had 65k or 10M boxes on
them because when you get too far beyond a thousand nodes you typically
suffer a bit of slowness. In your case you not only have more than 1024
nodes, but all of them are talking to the same server at the same time on
that same network.
Can Linux handle more? Sure, you're dealing with the same OS that runs
most supercomputers in the world, many of them being large clusters of
computers all working together in a single network, so obviously the
potential is there; however, there are reasons that one does not allow the
kernel to chew up all memory for a setting like "how many neighbors do you
have cached right now" when, for 99.9999% of the world, that max number
is around 200 since this specifically deals with neighbors on the same
segment or broadcast domain, not neighbors meaning anything reachable via
IP. Doing otherwise, for example setting it to 1,000,000, means that
somebody who was clever could more-easily waste your system's memory via a
denial of service (DoS) attack by flooding the network with bogus ARP
entries. Every one takes some memory, and every one needs to be managed
by the kernel until it is expired and removed, and again those networks
needing more than 1024 to be remembered within any single thirty-second
period are pretty rare. Your network must be pretty awesome to handle
that number of concurrent systems in the same logical network without
degradation.
Regarding running a DNS server, that is a good possibility as a service
that would experience this problem assuming all of the clients were on the
same network as the DNS server itself. While possible, the number of
networks where I've seen that has been pretty small overall since usually
those machines (servers) end up in a DMZ somewhere to prevent
unauthorized, or at least unaudited, access.
> VERY angry!
You're right in that this limitation should be documented, and made quite
obvious wherever it is documented. The migration guide would make sense,
as that would be a place where a lot of assumptions about defaults would
be questioned due to the OS change. If you have a specific page in the
documentation where you read through and expected limitations to be called
out, please either submit feedback, perhaps linking to this thread to
provide the background that you experienced, or post a link here an I'll
do the same.
If there are any other defaults that you feel should be changed,
particularly for your environment, sharing those may help as well.
In the meantime, you can change your current settings by running the
following as 'root' if you have not done so already:
Code:
cp /etc/sysctl.conf /etc/sysctl.conf-`date +%s`
cat << EOM >> /etc/sysctl.conf
# Setup higher threshold for arp
net.ipv4.neigh.default.gc_thresh3 = 4096
net.ipv4.neigh.default.gc_thresh2 = 2048
net.ipv4.neigh.default.gc_thresh1 = 1024
EOM
To apply the changes either run 'sysctl -p' (from memory I think that's
the right command) or else reboot the node, then perform again on other nodes.
Good luck.
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SBS 2003 to Server 2013 migration - How many virtual Servers?

Hi
I need to replace our SBS2003 - we are about 10 users. We use it for:
AD
File/Print
Exchange
SQL
WSUS
Subversion
TrendMicro WFBS
Since there is no current follow up product I feel like I need to setup:
Server 2012 R2
Exchange 2013
SQL Server 2012 Express
I found inconsistent information on how many virtual servers I will need. Is it correct that in contrast to SBS I must have multiple (virtual) servers?
What is best practice for this scenario (# of VM's, "what" goes best with "what", sizes ..)
Thanks a lot for your help .. I have a very good knowledge about the SBS2003 but unfortunately not about the later Standard Server Versions.

Well.. best practice would suggest,
1 VM - DC
1 VM - Exchange
1 VM - SQL
Reality though, suggests they may not be required.
What do you 'need'?, is a better question.
Can you move to hosted exchange?
You can certainly use the Hosted Trend Micro AV product which removes the requirement to run a console on your server.
Perhaps 2 VMs would be sufficient a DC, and a second to host your applications and WSUS.
Robert Pearman SBS MVP
itauthority.co.uk |
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How many NWDI do we need?

Hi!
We are an SAP outsoucing company with many different
landscapes for MI, EP, ECC, XI, SM, etc.
We have decided to use NWDI to handle all JAVA change management.
Some SAP systems can be in the DMZ.
So how many NWDI do we need? Is one enough?
I'll give points. Thanks!

Hi Laura,
this doc shows typical NWDI scenarios/landscapes with XI
read just the first section and you will know
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/f85ff411-0d01-0010-0096-ba14e5db6306
Regards,
michal
<a href="/people/michal.krawczyk2/blog/2005/06/28/xipi-faq-frequently-asked-questions"><b>XI / PI FAQ - Frequently Asked Questions</b></a>

CSS with SSL module - how many certs do we need

Hello,
currently moving from server-based certs to CSS/SSL based.
We have two sites, two CSS/SSL on each in ASR mode.
There are two real servers behind each SSL rule for load balancing.
The question becomes how many certificates do we need
for such design ?
For sure we need one per site, then on each site we have Active/Standby CSS's.
Do we need separate certificate for each CSS?
I dont think so, cause only one is active at the time.
I tested it with same certificate on both CSS's on one site, no problem.
The question is will it be ok for production ?
So total number would be 2 cert for such design (one per VIP) if we have one SSL rule per site, and 4 if we have 2 SSL rule per site - is it ok ?
Thank you,
Alex

the certificate is linked to a host name ie: www.mycompany.com.
So, if you have 4 css, all handling traffic for www.mycompany.com, then they can all share the same certificate.
Even if you have the 4 CSS split over 2 sites, using different vip, as long as they handle the same hostname, then they can share the certificate.
Actually, the CSS itself does not care about hostname/certificate mapping.
The CSS will use whatever certificate you configure it to use.
However, browsers make a check url <-> certificate and if there is a mismatch, they pop up an error message.
Regards,
Gilles.

How many times can you resend an iTunes Gift Card?

Tried sending an iTunes gift card to a @facebook account but the recipient hasn't received it.
Is it possible to send to another of their @facebook accounts and if that also fails then to a conventional account?
I guess my question is how many times can you resend on Gift Card and to how many different email accounts?

To use an iTune Gift Card to buy books...
Open iTunes on your computer and click on the iTunes Store.
You'll need to be signed in...
Click on the little House icon in the dark gray bar across the top. (or Shift+Command+H)
On the right side of the page under Quick Links click Redeem and enter your code.
Then it will show your credit balance in the dark gray bar across the top next to your account name to let you know how much you have to spend.
Then as you buy books, it'll deduct from the credit balanace.
There is a distinction between, iTunes Gift Card and Apple Gift Card.
Apple Gift Card: can be used to purchase Apple hardware and accessories at any Apple Retail Store, the Apple Online Store...
iTunes Gift Card: To give music, movies, TV shows, apps, books, or anything on the iTunes Store, the App Store, the iBooks Store or the Mac App Store, select an iTunes Gift Card

How many computers can you install the micro soft Office 2011 on.

How many computers can you install the Micro Office 2011 on?

A full (retail, single license key) MS Office license permits you to install Office on 1 desktop Mac + 1 portable (laptop) Mac provided 1) you own both computers and 2) you do not use Office simultaneously on both computers.
Beyond that, it depends on the specific Office package you have. Some packages have more specific terms.
For example, if you have MS Office Home & Student 2011 you will have 3 activation keys permitting you to install it on 3 computers, period. (Not 1 desktop + 1 laptop per license key.)
The license key pertains to the computer (device) not the number of user accounts on the device. So, if you have 2 or 3 or more user accounts on your iMac you only need to use 1 license key for the iMac itself. You apply the license key (activate the software) only in the admin account under which you installed the software. Once you activate the software in the primary admin account, Office will be usable in all user accounts on the iMac. Do not try to activate the software under other user accounts on the same Mac - if you do you will unnecessarily use up more license keys.

How many times can you download a free trial, on the same computer?

about how many times are you allowed to download the same free trial software on the same computer?

You can install a trial once on the same computer. After the trial period ends, you'll need a serial number (in other words, a purchased product) to continue using it on the same computer.

How many times can you transfer music

Hi,
Over the last few years we have had laptops breaking down and have had to transfer music and I was wondering how many times can you transfer from computer to another computer?
Please help because at the moment I am slightly confused!

Once you no longer use a machine, you are deactivating the iTunes library on that computer, right?
You have 5 total simultaneous activations per music library managed by a single Apple ID. As long as you deactivate unused systems, within that limit of 5, you can transfer at will.

How many users do you have using Busines Objects Enterprise?

Post Author: hcso
CA Forum: Deployment
How many people did you first roll it out to and was it a difficult process? I'm guessing there was training and documentation made available?
Using:
Business Objects Enterprise Release 2 SP2
SQL Server 2000 Data Mart
IIS
.NET framework installed
Crystal Reports XI R2
Active Directory authentication
Windows Server 2003 virtual machine
Service Pack 2
Intel 3 GHz
1.02 GB RAM
15 G hard drive
Thank you!

The sparsebundle will expand in size as required.. there is not set size.. when the hard disk is full then each TM should start deleting old backups. If you want to set a size for each backup then you will need to create a disk image.. but really TM can be left to look after this itself.
http://pondini.org/TM/33.html

Calculating how many managed servers you need.

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