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Swapping hard drives on a Compaq/HP server

April 26, 2008 at 11:35 am · Filed under blades, rackmounts

http://e4services.homestead.com/files/Support/ProliantHardDriveInstallReplacement.html

Each SCSI channel on the controller supports up to 14 drives. Drives can be of the Wide Ultra3 or Wide Ultra2 type.

Each drive on a SCSI bus must have a unique ID value in the range 0 to 15 (except ID 7, which is reserved for controller use). This value is set automatically on hot-pluggable drives in ProLiant servers and storage systems, but values for other drives must be set manually.

  • Do not terminate the drives. HP and Compaq branded servers and internal cabling provide the required termination of the SCSI bus.
  • Do not use drives of different capacity in the same array. The excess capacity of larger drives cannot be used by the array and is wasted.
  • Do not use hot-pluggable drives on the same SCSI bus as non-hot-pluggable drives.

Always be careful when swapping or moving drives about. Using RAID as a backup procedure is something to think about, but do ensure you have an adequate backup, pressing F1 when you should have pressed F2 could be the difference between rebuilding the server and quickly rolling back those changes. This article goes over some of the topics in replacing hard drives in a Compaq/HP Proliant - if in doubt speak with your support team/vendor before proceeding and ensure the firmware is up to date.

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