Change Volume Serial Number Linux
How to change Hard Disk's Volume Serial Number (Volume ID) Last updated on March 3rd, 2016. The Volume Serial Number (also known as VSN) is a unique serial number that is assigned to an optical disk (CD or DVD) or a hard drive after formatting. A volume serial number is a serial number assigned to a disk volume or tape volume. It originated in 1950s in mainframe computer operating systems. In OS/360 line it is human-configurable, has a maximum length of six characters, is in uppercase, must start with a letter, and identifies a volume to the system in unique. Use the fdasd command to manage partitions on ECKD™-type DASD that were formatted with the compatible disk layout. With fdasd you can create, change, and delete partitions, and also change the volume serial number. Fdasd checks that the volume has a valid volume label and VTOC. If either is missing or incorrect,.
I) The software will generate a (random) logical number to identify the disk, I guess that number will only change when you clean the mbr and start from scratch.
II) Yes.
III) Both are possible to change but I'd say the only one that is relatively safe to change is (I), as far as I know there is no standard tool or method to change (II). Wavetek 184 manual.
Change Volume Serial Number Linux 10
IV) For (I) maybe no big peril unless some software relies on that number to work. For (II) it's a whole different can of worms, for one to change the 'hardcoded' serial number you would have to get 'console' access to the HD controller and ask it to change the serial number. This is not supported in any way and I'd say manufacturers don't even want people (and other manufacturers) to access this because end users being able to have direct access to such low level control would certainly lead to people bricking their HDs and because some parameters that can be obtained could provide hints to the competition about how some things are done.
Change Volume Serial Number Linux Version
V) Those are retrieved from the firmware so those are the 'hardcoded' serial and model number, just like the label says.