Elevator drive with increased reliability
A recording system for a heat assisted magnetic recording hard disc drive (HDD) includes a head suspension pair including a first head/slider facing a first direction, and a second head/slider facing an opposite direction from the first head/slider. A number of near field transducers (NFTs) are disposed on each of the first head/slider and the second head/slider.
1. A recording system for a heat assisted magnetic recording hard disc drive (HDD), comprising:
a head suspension pair including a first head/slider facing a first direction, and a second head/slider facing an opposite direction from the first head/slider; and
a plurality of near field transducers (NFTs) on each of the first head/slider and the second head/slider.
2. The recording system of claim 1 , wherein each of the plurality of NFTs is configured to operate with multiple writers.
3. The recording system of claim 1 , wherein each plurality of NFTs comprises two NFTs.
4. The recording system of claim 1 , wherein each plurality of NFTs comprises three NFTs.
5. The recording system of claim 3 , wherein the plurality of NFTs is mounted on a single submount.
6. The recording system of claim 3 , wherein each of the plurality of NFTs is mounted on its own individual submount.
7. The recording system of claim 1 , wherein each of the plurality of NFTs comprises a laser source and the laser sources are mounted on a single submount.
8. The recording system of claim 1 , wherein each of the plurality of NFTs comprises a laser source and each laser source is mounted on its own individual submount.
9. The recording system of claim 1 , wherein the head suspension pair is mounted in an elevator style HDD.
10. A data storage device comprising:
a plurality of heat assisted magnetic recording (HAMR) data storage media;
a head stack assembly (HSA) including HAMR heads for reading data from and/or writing data to the data storage media; and
an elevator system for moving the HSA to engage the data storage media;
each HSA comprising:
a head suspension pair including a first head/slider facing a first direction, and a second head/slider facing an opposite direction from the first head/slider to engage top and bottom surfaces of data storage media; and
a plurality of near field transducers (NFTs) on each of the first head/slider and the second head/slider.
11. The data storage device of claim 10 , wherein each of the plurality of NFTs is configured to operate with multiple writers.
12. The data storage device of claim 10 , wherein each plurality of NFTs comprises two NFTs.
13. The data storage device of claim 12 , wherein each of the plurality of NFTs is mounted on a single submount.
14. The data storage device of claim 12 , wherein each of the plurality of NFTs is mounted on its own individual submount.
15. The data storage device of claim 10 , wherein each of the plurality of NFTs comprises a laser source and the laser sources are mounted on a single submount.
16. The data storage device of claim 10 , wherein each of the plurality of NFTs comprises a laser source and each laser source is mounted on its own individual submount.
17. A method of operating a data storage device having heads for heat assisted magnetic recording, the method comprising:
operating a first near field transducer (NFT) of a plurality of NFTs on each of a plurality of sliders for reading and/or writing data to the data storage device; and
operating a second NFT of the plurality of NFTs on an individual slider of the plurality of sliders when a criterion for no longer using the first NFT is met.
18. The method of claim 17 , wherein the criterion is a predetermined degradation of operation of the first NFT.
19. The method of claim 17 , wherein the criterion is failure of the first NFT.
20. The method of claim 17 , wherein the criterion is a predetermined temperature of the first NFT.