High availability tips & ideas

[George Daflidis-Kotsis]

On Tue, Feb 18, 2003 at 01:04:54PM +0200, Georgatos Vaggelis wrote:

> Kalhspera,
> 	Katarxhn to "koino" IP legete virtual.

To "koino" IP legetai opws to baftisei h etairia/to group pou ftiaxtei
to HA software :-)

Exw akousei na to apokaloun floating, virtual, shared, load balanced IP
kai eimai sigouros pws xrhsimopoiountai akomh perissotera onomata.

> Afto pou zita peri tou na ginontai pass ta states einai toulaxistwn
> anefikto sto sxhma pou dia8etis/xrisimopoieis.
> Gia na ginei kati tetio 8a prepei (me kapoio) tropo oi dyo kernels na
> antalasoun synexos afth thn pliroforia. Einai ena trade off pou exeis se
> afto to sxhma. Outos h allws oloi oi xristes kanoun reconect prin
> skef8oun kati. Kata thn apopsh mou an se endiaferei to state "passing"
> 8a sou prwtina en (L)VS[0]/DR[1] sxhma, opou ousiastika to virtual IP
> den to ma8enei pote o ekastote server. Vevaia ena tetio sxhma einai
> arketa poio "akrivo" ...

Filika.

-- 
[george daflidis-kotsis - systems admin,web/e-commerce - gdk at demon.net]