Magnetic recording disk having a safe zone
View Patent ↗A disk drive having a magnetic recording disk with a safe zone is described. A surface texture of the safe zone induces the head to fly at a greater height than while over data zones of the disk.
1. A magnetic recording disk, comprising:
a first zone having a plurality of data tracks to store data; and
a second zone having a surface to increase a flight height of a head greater than when the head is over the first zone, wherein the first zone comprises a discrete track recording pattern and wherein the second zone has a planar surface relative to a surface of the first zone.
2. The disk of claim 1 , wherein the planar surface of the second zone has a cross-hatch texture.
3. The disk of claim 1 , wherein the planar surface of the second zone is substantially smooth.
4. The disk of claim 1 , wherein the planar surface of the second zone has a radial texture.
5. The disk of claim 1 , wherein the planar surface of the second zone has slanted grooves.
6. The disk of claim 1 , wherein the second zone is a safe zone.
7. The disk of claim 1 , further comprising:
a third zone where the head is to park when the magnetic disk is not operating.
8. The disk of claim 1 , wherein the head is in contact with the magnetic disk when over the first zone.
9. A magnetic recording disk, comprising:
means for storing data from a head at a flight height; and
means for increasing the flight height of the head using a surface texture of the disk.
10. The disk of claim 9 , wherein the means for increasing the flight height includes increasing air pressure between the magnetic recording disk and the head to increase the flight height of the head.