If the server decision makers had not gone for a server designed by accountants but a server designed by engineers then you would not have this problem. Regards, Mark Woolfson MW Consultancy Ltd Leeds United Kingdom Tel: +44 113 259 0759 Mob: +44 786 065 2778 -----Original Message----- From: geo.inbox.ignored Sent: Sunday, December 25, 2016 7:49 AM To: centos at centos.org Subject: Re: [CentOS] Noise Cancellation of Server Noise On 12/24/2016 10:25 PM, John R Pierce wrote: <> > he said 'server rack'. thats a probably 6' tall cabinet filled with > servers, each of which has likely dozens of high speed fans. > }} true. i was thinking 'old school' slide drawer racks. because i doubt that 'it' or 'heads of authority' will allow changes to server racks, H's best bet is to get 'fixed base' or 'roll around' type acoustic wall panels. they are available with various types of sound absorbing covering and of various heights and widths. one or two can be placed between him and area of rack to block/absorb sound. -- The important thing is not to stop questioning. - Albert Einstein CentOS GNU/Linux 6.8 KDE 4.3.4 peace out. tc,hago. g . =+= Tired of having your microsoft os hacked? Change to Linux os, used by microsoft hackers. =+= If Bill Gates got a dime for every time Windows crashes... ...oh, wait. He does. THAT explains it! =+= in a world with out fences, who needs gates. =+= _______________________________________________ CentOS mailing list CentOS at centos.org https://lists.centos.org/mailman/listinfo/centos