sudo blkid
/dev/sda1: UUID="EE642B77642B4227" TYPE="ntfs"
/dev/sdb1: UUID="35c6b2bd-4bc5-464f-9e19-ef7ebc2020be" SEC_TYPE="ext2" TYPE="ext3"
/dev/sdb5: UUID="eaf4716c-4923-4ccb-a32f-e8c2fffc1ce6" TYPE="ext3"
...

# lspci
02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6200 (rev 35)# sudo vim /etc/modprobe.d/intel-5300-iwlagn-disable11n.conf
options iwlagn 11n_disable=1sudo apt-get install fpingfping -g 192.168.1.100 192.168.1.200sudo hdparm -i /dev/sdXsudo hdparm -i /dev/sdX