bandar_at_gmx.net (bandar) wrote in message news:<e623b4e7.0402171034.7cef7541_at_posting.google.com>...
> Dusan,
>
> you are absolutely right that those stretch clusters are working. My
> point is that I think the investments you have to make in bandwidth
> are not reasonable. Database log shipping can be performed e.g. with a
> 400 GB SAP database with only 2-4 MBit bandwidth. I don't have numbers
> for stretch clusters but I think the bandwidth is significant higher.
Well, it depends. During .com madness and even after it, we burried a
lot of glass in the ground, so you can buy a quite a lot of network
capacity for not as big money as even yesterday. In some European
countries Fast Ethernet is used even as a broadband access for home
users. Of course, SLAs are different, but you've got the point. Paying
for gigabit link between two sites with distance between them let's
say 100km is not a big deal for a mid-sized company. And a low latency
gigabit is exactly what you need as an interconnect for a typical
stretch cluster .
--
Dusan Bolek
Email: spambin_at_seznam.cz
Pls add "Not Guilty" to the subject, so your mail will not be burnt.
Received on Wed Feb 18 2004 - 08:48:09 CST
