Mainly so when I do a fresh Firefox install I know what plugins I'm used to having -

Aardvark - handy tool to deconstruct and troubleshoot web pages

Greasemonkey - script engine - I have to admit to not using this one at all

Viamatic FoxPose/Tabnail - gives you an OSX like Expose feature and miniature page graphics in the tab field (Tabnail seems to stop working when used in conjunction with one of these

AdBlock - customisable ad blocker

TabX - put a little 'x' to close each tab on the tab itself (like Safari)

SessionSaver - save a set of open browser sessions

NukeAnything Enhanced - contextual menu to zap anything in your browser window

Xinha Here - contextual menu to provide a full html edit window (very handy for blogging)

Basically I followed the steps from MadJunks Clustering Guide. His site has plenty of other useful Domino related idiots guide type things too.

Here are some additional notes (most of this is pretty obvious to hardcore Domino admins but a lot of it was stuff I needed to discover for myself) :

Need to have Connection Documents for push/pull on both servers in both directions.

Need to insure both servers have rights in each others Server Documents (Security tab) to create new Replicas and new Files.

Failover only takes affect for the end-user after closing and reopening Notes - the server knows about the failover but the client doesn't until its reopened and redirected by the other members of the cluster.

Replication needs to be tweaked - the failover is to the last successful replication (could be anywhere from 24 hours to 30min depending on setup and server load).

Mail delivery (send/receive) only seems to take place after the failed node comes back online (presumably this is just a Domino Server Document setting that needs tweaking so send/receive is possible from anyone of the cluster members.

One of the best things about the clustering is that is OS independent - once Domino is installed regardless of OS you can setup a cluster within the Domino group itself (eg between Domino servers running on AIX, Solaris, Linux, Windows etc).

Useful References

IBM - Setting up a cluster

Its interesting to note that this type of clustering is a real pain in the ass in Exchange - Say No to Active/Active Clustering.

Rebuild Mailfile Index

Error/Symptom

Delete an email message but it still remains in your view

Fix (on Domino server console)

load updall mail\.nsf -R to update the mailfile index

Fix Database Corruption

Error/Symptom

Database is corrupt -- Cannot allocate space NIF: DETECTED STORAGE CORRUPTION ERROR 'B-tree structure is invalid'

Fix (on Domino server console)

updall -R on the mail database, and then load fixup -F -J on mailfile

You can run these update/fixup commands repeatedly until the problem sorts itself out (or you give up and restore from backup).