Raid5 and removing devices

[orinoco]

Hello,

I have a question about raid5 and possibly removing a disk outside of the raid.

For example the following disk-setup:

/dev/sda1 -> boot-drive
/dev/sdb1 -> member of a raid5 /dev/md0
/dev/sdc1 -> another member of /dev/md0
/dev/sdd1 -> another member of /dev/md0

What will happen to the raid5 if I remove the first disk /dev/sda?

I assume that the device names will be shifted. Will this affect the raid5?