Everyone,
I am a new user of Centos and have started the process of becoming informed as to what centos can do. Sorry to ask a simple question but can you tell me where centos 4.4 compares with Red Hat Enterpres AS or ES?
Thanks,
Greg Ennis
On Sun, 2006-10-29 at 22:36 -0600, Gregory P. Ennis wrote:
Everyone,
I am a new user of Centos and have started the process of becoming informed as to what centos can do. Sorry to ask a simple question but can you tell me where centos 4.4 compares with Red Hat Enterpres AS or ES?
---- It is both.
The Red Hat distinction is about processors and support. I think RHEL AS also automatically uses the bigmem kernel.
Craig
I am a new user of Centos and have started the process of becoming informed as to what centos can do. Sorry to ask a simple question but can you tell me where centos 4.4 compares with Red Hat Enterpres AS or ES?
There is no technical difference between RHEL AS and RHEL ES. The difference is in what Red Hat will or will not support as far as the number of CPUs and the amount of RAM in a system. RHEL 4 ES and RHEL 4 AS can both support the hardware listed for RHEL AS. The difference is that if you call Red Hat and have support for RHEL ES and you have more than 2 physical processors or more than 16 GB of RAM they will tell you that you are running an unsupported configuration. If you are running RHEL 4 AS with the same configuration, you are running a supported configuration.
These issues do not plague CentOS. You can expect CentOS 4 to run hardware up to the same configuration of RHEL 4 AS.
Barry
On Sun, 2006-10-29 at 22:46 -0600, Barry Brimer wrote:
I am a new user of Centos and have started the process of becoming informed as to what centos can do. Sorry to ask a simple question but can you tell me where centos 4.4 compares with Red Hat Enterpres AS or ES?
There is no technical difference between RHEL AS and RHEL ES. The difference is in what Red Hat will or will not support as far as the number of CPUs and the amount of RAM in a system. RHEL 4 ES and RHEL 4 AS can both support the hardware listed for RHEL AS. The difference is that if you call Red Hat and have support for RHEL ES and you have more than 2 physical processors or more than 16 GB of RAM they will tell you that you are running an unsupported configuration. If you are running RHEL 4 AS with the same configuration, you are running a supported configuration.
These issues do not plague CentOS. You can expect CentOS 4 to run hardware up to the same configuration of RHEL 4 AS.
Barry
Barry and Craig,
Thanks for your answers. This helps a lot. Is there anything that RH 4 ES or AS can do that Centos 4.4 is unable to perform. Then it looks like Centos is just as stable as ES or AS, and the support will probably be better on this list than calling RH.
I was considering migrating an application from SCO to RedHat, and now it looks like Centos would even be better.
Greg
On Sun, 2006-10-29 at 23:08 -0600, Gregory P. Ennis wrote:
On Sun, 2006-10-29 at 22:46 -0600, Barry Brimer wrote:
I am a new user of Centos and have started the process of becoming informed as to what centos can do. Sorry to ask a simple question but can you tell me where centos 4.4 compares with Red Hat Enterpres AS or ES?
There is no technical difference between RHEL AS and RHEL ES. The difference is in what Red Hat will or will not support as far as the number of CPUs and the amount of RAM in a system. RHEL 4 ES and RHEL 4 AS can both support the hardware listed for RHEL AS. The difference is that if you call Red Hat and have support for RHEL ES and you have more than 2 physical processors or more than 16 GB of RAM they will tell you that you are running an unsupported configuration. If you are running RHEL 4 AS with the same configuration, you are running a supported configuration.
These issues do not plague CentOS. You can expect CentOS 4 to run hardware up to the same configuration of RHEL 4 AS.
Barry
Barry and Craig,
Thanks for your answers. This helps a lot. Is there anything that RH 4 ES or AS can do that Centos 4.4 is unable to perform. Then it looks like Centos is just as stable as ES or AS, and the support will probably be better on this list than calling RH.
I was considering migrating an application from SCO to RedHat, and now it looks like Centos would even be better.
---- Red Hat is selling a service level agreement. CentOS is user supported.
You have to draw your own conclusions as to the value of a Red Hat SLA.
Craig
On Sun, 2006-10-29 at 22:46 -0700, Craig White wrote:
On Sun, 2006-10-29 at 23:08 -0600, Gregory P. Ennis wrote:
On Sun, 2006-10-29 at 22:46 -0600, Barry Brimer wrote:
I am a new user of Centos and have started the process of becoming informed as to what centos can do. Sorry to ask a simple question but can you tell me where centos 4.4 compares with Red Hat Enterpres AS or ES?
There is no technical difference between RHEL AS and RHEL ES. The difference is in what Red Hat will or will not support as far as the number of CPUs and the amount of RAM in a system. RHEL 4 ES and RHEL 4 AS can both support the hardware listed for RHEL AS. The difference is that if you call Red Hat and have support for RHEL ES and you have more than 2 physical processors or more than 16 GB of RAM they will tell you that you are running an unsupported configuration. If you are running RHEL 4 AS with the same configuration, you are running a supported configuration.
These issues do not plague CentOS. You can expect CentOS 4 to run hardware up to the same configuration of RHEL 4 AS.
Barry
Barry and Craig,
Thanks for your answers. This helps a lot. Is there anything that RH 4 ES or AS can do that Centos 4.4 is unable to perform. Then it looks like Centos is just as stable as ES or AS, and the support will probably be better on this list than calling RH.
I was considering migrating an application from SCO to RedHat, and now it looks like Centos would even be better.
Red Hat is selling a service level agreement. CentOS is user supported.
You have to draw your own conclusions as to the value of a Red Hat SLA.
Craig
Also,
I would point out that RH has the RHN ... which will allow you to register machines and push configurations or updates to specific machines via that interface.
CentOS does not have a server register mechanism that pushes updates and all updates are pull to the client. CentOS uses either yum or up2date (run on the client) to pull updates from our mirrors (or from a local mirror if you configure it that way).
Most users use up2date on RHEL (which is pull as well), so this is not really a major issue, however centrally controlled push updates is another benefit of an RHEL subscription.
Thanks, Johnny Hughes CentOS-4 Lead Developer
Johnny Hughes wrote:
CentOS does not have a server register mechanism that pushes updates and
wouldn't that be a nifty feature for CentOS?
BTW, isn't there any open source licensed tool for distributed host configuration management on which such a register mechanism could be based on?
Regards, Michael
On Tue, 2004-12-14 at 22:20 +0100, Michael Kress wrote:
Johnny Hughes wrote:
CentOS does not have a server register mechanism that pushes updates and
wouldn't that be a nifty feature for CentOS?
BTW, isn't there any open source licensed tool for distributed host configuration management on which such a register mechanism could be based on?
It might be a nice feature, and we have been looking at it.
Currently, I think the best one is "Current":
However, to be honest, I don't think it is nearly good enough as it stands now.
Thanks, Johnny Hughes
On Mon, 2006-10-30 at 06:08 -0600, Johnny Hughes wrote:
On Sun, 2006-10-29 at 22:46 -0700, Craig White wrote:
On Sun, 2006-10-29 at 23:08 -0600, Gregory P. Ennis wrote:
On Sun, 2006-10-29 at 22:46 -0600, Barry Brimer wrote:
I am a new user of Centos and have started the process of becoming informed as to what centos can do. Sorry to ask a simple question but can you tell me where centos 4.4 compares with Red Hat Enterpres AS or ES?
There is no technical difference between RHEL AS and RHEL ES. The difference is in what Red Hat will or will not support as far as the number of CPUs and the amount of RAM in a system. RHEL 4 ES and RHEL 4 AS can both support the hardware listed for RHEL AS. The difference is that if you call Red Hat and have support for RHEL ES and you have more than 2 physical processors or more than 16 GB of RAM they will tell you that you are running an unsupported configuration. If you are running RHEL 4 AS with the same configuration, you are running a supported configuration.
These issues do not plague CentOS. You can expect CentOS 4 to run hardware up to the same configuration of RHEL 4 AS.
Barry
Barry and Craig,
Thanks for your answers. This helps a lot. Is there anything that RH 4 ES or AS can do that Centos 4.4 is unable to perform. Then it looks like Centos is just as stable as ES or AS, and the support will probably be better on this list than calling RH.
I was considering migrating an application from SCO to RedHat, and now it looks like Centos would even be better.
Red Hat is selling a service level agreement. CentOS is user supported.
You have to draw your own conclusions as to the value of a Red Hat SLA.
Craig
Also,
I would point out that RH has the RHN ... which will allow you to register machines and push configurations or updates to specific machines via that interface.
CentOS does not have a server register mechanism that pushes updates and all updates are pull to the client. CentOS uses either yum or up2date (run on the client) to pull updates from our mirrors (or from a local mirror if you configure it that way).
Most users use up2date on RHEL (which is pull as well), so this is not really a major issue, however centrally controlled push updates is another benefit of an RHEL subscription.
Thanks, Johnny Hughes CentOS-4 Lead Developer _______________________________________________
Everyone,
Thanks again for your response. In regards to RH support it has been very good, but the user support I have received on the Fedora list and what will be present on this list has been even better.
The yum updates on individual machines will be very satisfactory for us.
I am continuing my testing of CentOS and everything is going better than I expected.
Greg
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Barry Brimer -
Craig White -
Gregory P. Ennis -
Johnny Hughes -
Michael Kress