rack management: how to replace 1 without bringing down the house

rack management: how to replace 1 without bringing down the house

Post by a » Wed, 30 Apr 2003 13:24:30



I don't know where else to ask these questions and this
newsgroup seems most appropriate.

I have a bunch of rack servers which sit on top of
some tower case.  I plan to replace towers with racks
and I would like to know how everyone else
handle the mess.

Immediate problem: I want to keep rack servers
running while I remove the towers at the bottom and replace with rack
servers.  Since rack servers are resting on
tower cases below I find it impossible except with the help of
many people holding heavy rack servers up in the air.

Future problem: If I have all rack servers sitting
on top of each other how do I replace a server which is not
to top without powering down all above and removing them
one by one.

Continuous problem: None of my rack servers have rails because
I cannot find any rail that will fit the rack.  (And I have bought
4 rails).

Here is a picture of the mess I am referring to

http://www.geocities.com/llamarcat/b.jpg

Ideal thing will be some kind of crane which can lift any
variable number of servers and I can move in and out 1
server at will.

 
 
 

rack management: how to replace 1 without bringing down the house

Post by Ed Rav » Thu, 01 May 2003 03:07:19



Quote:>Immediate problem: I want to keep rack servers
>running while I remove the towers at the bottom and replace with rack
>servers.  Since rack servers are resting on
>tower cases below I find it impossible except with the help of
>many people holding heavy rack servers up in the air.

One trick I've used is to get a thin rack shelf, have a couple of
folks elevate the topmost rack server, slip the rack shelf underneath
it,*down the rack shelf, and voila, one less server resting
on the stuff below.  In your case, you'd probably need a thin shelf
for each server, and you'll lose 1U or so of space for each shelf.

Quote:>Ideal thing will be some kind of crane which can lift any
>variable number of servers and I can move in and out 1
>server at will.

Here's a picture of one in action :

  http://www.veryComputer.com/

The caption for that photo is at:

  http://www.veryComputer.com/
 [...]
  jayfar took these pictures of grr on March 1. "Grr had called me into the
  colo to show me the rigging he set up to extract one of X's servers from
  the middle of the rack. Several hundred pounds of servers were weighing
  down on the rack-mounted box he needed to work on." Typical grr.

--
Ed Ravin   |  "The way you tell the good socialists from the bad ones is

panix.com  |                    ---- M.J. Smith
           |

 
 
 

rack management: how to replace 1 without bringing down the house

Post by Chaz » Fri, 02 May 2003 00:26:27




> >Immediate problem: I want to keep rack servers
> >running while I remove the towers at the bottom and replace with rack
> >servers.  Since rack servers are resting on
> >tower cases below I find it impossible except with the help of
> >many people holding heavy rack servers up in the air.

> One trick I've used is to get a thin rack shelf, have a couple of
> folks elevate the topmost rack server, slip the rack shelf underneath
> it,*down the rack shelf, and voila, one less server resting
> on the stuff below.  In your case, you'd probably need a thin shelf
> for each server, and you'll lose 1U or so of space for each shelf.

> >Ideal thing will be some kind of crane which can lift any
> >variable number of servers and I can move in and out 1
> >server at will.

> Here's a picture of one in action :

>   http://www.veryComputer.com/

> The caption for that photo is at:

>   http://www.veryComputer.com/
>  [...]
>   jayfar took these pictures of grr on March 1. "Grr had called me into
the
>   colo to show me the rigging he set up to extract one of X's servers from
>   the middle of the rack. Several hundred pounds of servers were weighing
>   down on the rack-mounted box he needed to work on." Typical grr.

> --
> Ed Ravin   |  "The way you tell the good socialists from the bad ones is

> panix.com  |                    ---- M.J. Smith
>            |

The morally of the story is always buy rack servers with rails :o)

Regards,

Chris