Contacting SPARC T2 BMCs
Recent as of OpenSSH 10.3p1: ssh
-oHostKeyAlgorithms=+ssh-rsa \ -oRequiredRSASize=1024 -c 3des-cbc
Contacting SPARC T1 BMC
(might be out of date?) ssh -o Ciphers=aes128-cbc -o
KexAlgorithms=diffie-hellman-group1-sha1
Other random notes
- The SPARC T2/T3/T4 chips have two Instruction Fetchers/two Integer ALUs in every core. (More generally, there is one IALU every 4 threads for the T1 thru T5 generations; the number of threads per core has varied over time.) Rather than counting "cores", Linux counts the distinct caches connected to IALUs. For this reason, a T2 system that is 8 cores × 8 threads is actually reported as 16 cores × 4 threads.
- MD-RAID had a format change; Linux 7.0-created arrays cannot be read with 6.19.
- The T5240 has e.g. 6 disks and 1 DVD drive. One SCSI LUN naturally remains empty. Under Linux 6.x, 7.x, the mptsas driver is kinda really slow (~90s) to probe.