Anyone encountered system freezes on Sun Blade X6450?

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Rick_Smith
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Anyone encountered system freezes on Sun Blade X6450?

Post by Rick_Smith » 2013/10/16 21:32:09

We are running CentOS 5.3 and the system crashes......we have maxed out on RAM

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TrevorH
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Re: Anyone encountered system freezes on Sun Blade X6450?

Post by TrevorH » 2013/10/16 21:45:24

As I've told you several times in the past: 5.3 is obsolete. Upgrade. Soon. Preferably now.

5.3 is now 7 CentOS 5 releases old (this post is written just as 5.10 is due for release, any day now). With a release cycle of approximately 6 months, that makes it 3.5 years old. Wikipedia seems to think it was released 2009-03-31 which makes it 4.5 years old. In that time there have been a slew of continuous updates for the product.

It's quite easy: you become root and run

[code]
yum update
[/code]

Rick_Smith
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Re: Anyone encountered system freezes on Sun Blade X6450?

Post by Rick_Smith » 2013/10/16 21:59:00

Thank you for your response. Our app does not run on a higher release of CentOS.....

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TrevorH
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Re: Anyone encountered system freezes on Sun Blade X6450?

Post by TrevorH » 2013/10/16 22:08:40

Did you try it? RH go to great lengths to make subsequent releases of the same major version interoperable. That is the point of Enterprise Linux, the API and kernel ABI stays the same throughout the entire 10 year lifespan of the product.

If you paid for this app then you should ask your vendor if they indemnify you against damage caused by security breaches due to running an old, out of date operating system that you are not allowed to upgrade. The Redhat errata page for RHEL 5 now has (on my system) 17 pages of [u]security[/u] updates listed since the release of 5.3. At ~30 items per page, that is over 500 security fixes since the release you now run. These include important updates to the kernel, to glibc and various other critical packages. Your system is currently not only vulnerable but has numerous other bugs that have been fixed in the intervening 4.5 years.

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Re: Anyone encountered system freezes on Sun Blade X6450?

Post by Rick_Smith » 2013/10/28 10:14:25

I would love for the moderators to work in our offices!

Anyway, here's a question, the CentOS /boot is on the Compact Flash card, however, /usr, /var, /opt etc are on SAN, could this be a contributing factor to the blade lock up?

Is it a GREAT idea to go to the internal SSD for the whole CentOS system? Exclusing apps which will be via SAN.

What needs to be done to move /uar /var /opt from SAN to an internal SSD?

Please help.

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toracat
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Anyone encountered system freezes on Sun Blade X6450?

Post by toracat » 2013/10/28 15:34:09

[quote]
Rick_Smith wrote:
Thank you for your response. Our app does not run on a higher release of CentOS.....[/quote]
As [b]TrevorH[/b] pointed out, CentOS does not support older releases. If you really have to stay at some point release, you may want to consider switching to Scientific Linux (SL). SL will allow you to do that by providing security updates to previous releases. See [url=https://www.scientificlinux.org/documentation/howto/upgrade.6x]this article[/url] for some descriptions.

Quote:
"It is not required that administrators upgrade their release, because the security errata will be updated for all releases."

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toracat
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Re: Anyone encountered system freezes on Sun Blade X6450?

Post by toracat » 2013/10/28 15:40:41

That SL link was for 6.x. [url=https://www.scientificlinux.org/documentation/howto/upgrade.5x]Here[/url] is the one for 5.x.

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