These are the known issues for the SPARC T7 servers:
When You Create Logical Domains, Some Memory Is Reserved By the Server
Processes Hang in nanosleep() in an Oracle Solaris 10 Guest Domain (19690481)
Oracle VTS System Exerciser Disk Test Fails On eUSB Device Due to Delayed taskq (18154963)
Servers With Missing Miniroot Indicate Cooling in the List of Affected Subsystems (20922954)
Oracle Solaris Should Process os-root-device Only Upon Boot (21077998)
sun4v_pcbe_enable Warning Appears When Starting a Guest Domain Running Oracle Solaris 10 (21466955)
ixgbevf Driver Does Not Properly Report a Link State Change to the MAC Layer (21629053)
Solaris OS Fails to Drop to OpenBoot Upon Retirement of SCC Cores and L2DS (21644300, 21772653)
The Solaris OS Sometimes Fails to Recover Following a QRAP Event (22022572)
T7-x Observes Dropped Characters Running SysFW 9.7.4 (25506535)
Do Not Use Certain Hynix 32GB DIMMs on T7 Servers (23284277, 23284255, 23222472)
Net Install of 11.3SRU21b4 and b5 Panics With NVME Devices Installed (26241738)