Today, I feel like talking about how our networks are organized at the logical level of subnets and routing andinterconnections (instead of the physical level of switches and soon; that's another entry). This will be simplified somewhat becausegoing into full detail would make it feel too much like work.

We have a single connection to the campus backbone; these days it uses atouchdown network that connects to our core router (although it didn'tused to, which caused some issues ). Hangingoff

Current versions of Solaris have a ' -F ' option for zpool import and zpool clear , which is documented like this:

Initiates recovery mode for an unopenable pool. Attempts to discardthe last few transactions in the pool to return it to an openablestate. Not all damaged pools can be recovered by using this option. Ifsuccessful, the data from the discarded transactions is irretrievablylost.

The current Oracle documentation hasa somewhat more detailed explanation, which mentions that this isspecifically (only) for recovering from damaged pool