RAID level 5 is supported on only the following hardware platforms at this time:
Sun StorEdge A5x00/A3500FC arrays.
Sun StorEdge T3 and T3+ arrays. However, note that if you are using these arrays in a single-controller configuration, an additional mechanism for data redundancy, such as host-based mirroring, must also be used. If these arrays are used in a partner-group configuration, the controllers are redundant and you can use RAID 5 without host-based mirroring.
Alternate Pathing (AP) is not supported.
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 (see BugId 4490386 .)