Multihost tape, CD-ROM, and DVD-ROM are not supported.
Alternate Pathing (AP) is not supported.
Storage devices with more than a single path from a given cluster node to the enclosure are not supported except on the following storage devices:
Sun StorEdgeTM A3500, for which two paths are supported to each of two nodes
Any device that supports Sun StorEdge Traffic Manager
EMC storage devices that use EMC PowerPath software
If you are using a Sun EnterpriseTM 420R server with a PCI card in slot J4701, the motherboard must be at dash-level 15 or higher (501-5168-15 or higher). To find the motherboard part number and revision level, look at the edge of the board closest to PCI slot 1.
System panics have been observed in clusters when UDWIS I/O cards are used in slot 0 of a board in a Sun Enterprise 10000 server; do not install UDWIS I/O cards in slot 0 of a board in this server.
When you increase or decrease the number of node attachments to a quorum device, the quorum vote count is not automatically recalculated. You can reestablish the correct quorum vote if you remove all quorum devices and then add them back into the configuration.
SunVTSTM is not supported.