Masao Kitamura

/sbin/hdparm -tT /dev/sda

If your SSH public key authentication is failing with errors like this:

$ ssh -vvv myhost.com
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /home/kitamura/.ssh/id_dsa
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply

…try these permissions on the server:

server$ chmod go-w ~/    (same as 755)
server$ chmod 700 ~/.ssh
server$ chmod 600 ~/.ssh/authorized_keys

more troubleshooting tips