On Tue, 2005-06-07 at 17:09 -0700, Dan Stromberg wrote: > The lecturer at the recent NG storage talk at Usenix in Anaheim, > indicated that it was best to avoid "active/active" and get > "active/passive" instead. > > Does anyone: > > 1) Know what these things mean? > > 2) Know why active/passive might be preferred over active/active? > > If I had to guess, I'd say that active/active means that n servers are > all watching n-1 others to decide when they should jump to life, while > in active/passive perhaps 1 server is primary, and the passive nodes > only monitor that 1 server. Maybe? Just a totally wild guess based on > next to nothing. :) I think I found a relevant context. Say you have two RAID controllers per "Storage Brick", the latter apparently being a dual-ported way of accessing a SATA or FC disk. Does active/active mean they'll send data at the disk in question via both ports? Thanks!
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