Certain hard disk drive types have been discontinued due to the end of production at HP's hard disk drive suppliers. HP is using 18GB hard disk drives as repair parts to replace the 4GB and 9GB hard disk drives in almost all applications with the exception of any configurations using the HP Disk Array Controllers (HP Mylex Card Product numbers C3609A and C3610A). The HP Disk Array requires the exact capacity hard disk drive for replacement or a complicated upgrade of the controller (see other support document titled “”) or a complete replacement of the controller with the NetRAID 3Si controller avaiable HERE Related document "Replacing a Low Capacity Drive with a Large Capacity Drive on an Existing Array on an AMI RAID Controllers"

Due to the relatively short production life of hard disk drives and the discontinuance of 4GB and 9GB 10K RPM hard disk drives, HP supports the use of the 18GB 10K RPM hard disk drives to replace defective 4GB and 9GB hard disk drives, except for array configurations based on the original HP Disk Array Controllers (HP Mylex DAC Product numbers C3609A and C3610A). Currently the 18GB disks, through current data density technology, are 36GB in capacity, a disk manufactured from a single plater disk. So we now support 36GB hard drives replacing all smaller capacity drives

Any configurations using the HP Disk Array require the exact capacity hard disk drive for replacement.

These HP Disk Arrays Controllers were last sold in August 1997.

The 36GB 10K RPM Ultra-3 U320 drives has been fully qualified as a functional equivalent under the following configurations:

• Mixing 4, 9, 18GB and 36GB with a combination of 7200 RPM and 10K RPM drives
• Mixing 4, 9, 18GB and 36GB in these RAID configurations:
  • Embedded HP NetRAID controller
  • HP NetRAID controller
  • HP NetRAID-1 controller
  • HP NetRAID-1m controller
  • HP NetRAID-1si controller
  • HP NetRAID-2m controller
  • HP NetRAID-3si controller
  • HP NetRAID-4m controller
• Mixing 4, 9, 18GB and 36GB on all SCSI controllers

See Details for a complete list of replacement part numbers.

If you have an HP Disk Array controller:

• HP has reserved the 4GB and 9GB hard disk drives for replacement. Therefore, mention the fact that you have the HP Disk Array Controller that requires the exact replacement part.

If you have any other controller:

• For the embedded HP NetRAID, NetRAID-1, NetRAID-1si, NetRAID-3si, NetRAID-1m, NetRAID-2m:
  • If the array structure has not changed with at least one of the original capacity drive still in the array, no special action is required.
  • If all the original drives have been removed, installed with larger capacity drives, initialized for the array and restored from backup, no special action is required.
  • There is a special case if all of the original-size drives were removed one by one (therefore, keeping the array intact) and an additional array is to be added. The HP NetRAID Assistant or NetRAID Express Tools utility will require that the unused space on the original array configured prior to configuring the new array.

Use the following part numbers:

D9419Ao for Hot Swap:

• D7175A and D7174A - 18GB Ultra2
• D6107A - 9GB 10K RPM Ultra-2
• P1168A - 9GB 10K RPM Ultra-2
• D6106A - 9GB 7200 RPM Ultra-2
• P1217A - 9GB 7200 RPM Ultra-3
• D6104A - 4GB 7200 RPM Ultra-2

P2474Ao for Hot Swap:

• P2473A - 18GB 10K RPM Ultra-3
• P2472A - 9GB 10K RPM Ultra-3

D7176Ao for non-Hot Swap:

• D7049A - 9GB 10K RPM Ultra-wide
• P1214A - 9GB 10K RPM Ultra-3
• D7176A - 18GB 7200 RPM Ultra-wide
• D4911A - 9GB 7200 RPM Ultra-wide
• P1215A - 18GB 7200 RPM Ultra-3
• P1213A - 9GB 7200 RPM Ultra-3
• D4910A - 4GB 7200 RPM Ultra-wide

This information is subject to change without notice and is provided "as is" with no warranty. e4ServicesInc.com shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this material.