My client is attempting to plan a data center relocation. They have
approached us for ideas, so I wanted to present it to the Cisco masses to
take advantage of vast wealth of knowledge out there.
The new data center is currently reachable via ATM over SONET. Between the
old and the new data centers is a pair of FORE ASX200s. Each FORE ATM
Switch has two 622Mb connections (one to each neighbor FORE ATM switch via
the SONET node), and each Cisco 7507 has a single 155MB connection to the
FORE ATM Switch. Basically its ethernet to ATM/SONET to ethernet. We
cannot re-address any servers, we must maintain the current address scheme
(routable class c's, no private addresses). The move does not have to
happen fast, and the moving company insists it can move only 16 servers at a
time, even though there are 100's (NT as well as UNIX). This makes us think
we should either attempt to configure bridging between the old and new data
center, or perhaps subdivide each subnet and use static routes until the
entire subnet can be put back together at the new location.
Does anyone have any "industry best practices", ideas, or suggestions on
keeping this move as transparent to the users as possible? Thanks!
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:15 EDT