By doubling the hardware, you still do not overcome the potential corruption that could occur with non-ecc memory. If this is truly a mission critical application then it really does not serve much of a purpose to short change yourself with substandard hardware.
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of John R Pierce Sent: Sunday, February 13, 2011 7:17 PM To: centos@centos.org Subject: Re: [CentOS] server specifications
On 02/13/11 7:06 PM, Nico Kadel-Garcia wrote:
It's also possible to save the budget, buy *two* similarly powerful used systems with much lesser hardware specs, and have genuine failover instead of the shared vulnerability of one expensive server with high-availability components as you describe. I've done both, and encourage using less expensive hardware in pairs: that makes upgrading a lot cheaper and helps avoid the single points of failure of high end hardware. HP's older "Proliant Server Packs" and their ability to completely mishandle the Broadcom network drivers on RHEL and CentOS, in particular, come to mind.
you still want ECC memory in a server... and redundant power in a 1U is really no big deal.
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