Brad Knowles wrote: > on 11/19/08 10:33 PM, Jeff Wasilko said: > > >> For servers with cable arms, it makes it easy to 'hide' a little extra >> power or network cable length in the arm. We bought a range of pre-made >> power cords in different lengths depending on where the server is >> located in the rack. >> > > The thing that we've discovered is that arms usually block a significant > amount of front-to-back airflow, which really hurts the cooling process > for the affected servers. At least, this is true for all the arms we've > seen. > > So, while we used to use arms quite a bit, now the facilities guys rip > them out every opportunity they get. The cooling problems just aren't > worth the minimal added value they provide. > > exception: stuff like X4500 where you really need the thing to allow you to pull out the beast to replace disks without pulling cables. (Plus, the server is 4U and the management arm is significantly smaller)
for 1U stuff it can be a serious issue. _______________________________________________ Tech mailing list [email protected] http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
