search for: world_wide_name

...uniquely identifies the disk, offering a clear correspondence between physical and logical disks. Under CentOS, the WWN ID of detected disks can be found under /dev/disk/by-id. WWN stands for "World Wide Name". There's a Wikipedia article about it here: https://en.wikipedia.org/wiki/World_Wide_Name "hdparm - I" or even "smartctl? -a" will show which /dev/sdX or whatever corresponds to which WWN or other relatively stable ID types. The advantage of WWN is that the ID won't change if you connect the disk to a different controller, for example from a SAS one to a SATA on...

...uniquely identifies the disk, offering a clear correspondence between physical and logical disks. Under CentOS, the WWN ID of detected disks can be found under /dev/disk/by-id. WWN stands for "World Wide Name". There's a Wikipedia article about it here: https://en.wikipedia.org/wiki/World_Wide_Name "hdparm - I" or even "smartctl? -a" will show which /dev/sdX or whatever corresponds to which WWN or other relatively stable ID types. The advantage of WWN is that the ID won't change if you connect the disk to a different controller, for example from a SAS one to a SATA on...

>> #1. Map the physical drive slots to how they show up in FBSD so if a >> disk is removed and the machine is rebooted all the disks after that >> removed one do not have an 'off by one error'. i.e. if you have >> ada0-ada14 and remove ada8 then reboot - normally FBSD skips that >> missing ada8 drive and the next drive (that used to be ada9) is now