Shiyao Wang's questions

I have a router with DHCP Option3(Router) set, and it works well.

My Ubuntu22.04 machine was able to configure the default route automatically.

Yesterday, I configured DHCP Option121 (Classless route) on my DHCP Server.

After this configuration change, my Windows machine was able to get both configuration information (3 and 121) from DHCP.

However, my Ubuntu22.04 machines dropped configuration information from Option3 and no default route is configured.

I wonder if this is by design? Or did I misconfigure anything?

I'm using Windows Storage Space with multiple hard drives.

If I create multiple virtual disks, then delete some of them, and resize some of them, will the virtual disk be finally divided into multiple fragments and will these fragments be located everywhere across all these hard drives?

For example: If VirtualDisk1's first 1TB is located at the beginning of PhysicalDrive4, and VirtualDisk1's second 1TB is located at the end of PhysicalDrive4, VirtualDisk1's last 3TB is on PhysicalDrive5, and VirtualDisk2, VirtualDisk3, etc.

Demonstration picture of such fragmentation

I wonder if such fragmentation will cause performance issues and how does Windows deal with such situations and how does Windows optimize storage space for this scenario?