On Fri, June 10, 2011 11:18 am, Phil Schaffner wrote: > For the inspection of the docs group: > > http://wiki.centos.org/TipsAndTricks/IdentifyHardDisk hdparm -I fails on 4 of my machines with SATA disks attached to 3ware RAID controllers in JBOD configuration and a fifth one with SCSI disks attached to an LSI Logic RAID controller (JBOD as well) with the following message: [root at host ~]# hdparm -I /dev/sd? /dev/sda: HDIO_DRIVE_CMD(identify) failed: Invalid argument /dev/sdb: HDIO_DRIVE_CMD(identify) failed: Invalid argument Might be good to include a note that the command does not work for all disk/controller configurations.