Guidelines To Replace A Physical Disk Or Physical Device

A replacement disk may not be the same model as the physical disks or devices in the storage enclosure. Use the following guidelines when replacing a disk:

  • A drive within an array must be replaced with a drive of equal or greater capacity.
  • Consider the bus speed while replacing a drive. Replacing drives with equal or greater bus speeds within the same array is supported. You can use both 3GB and 6GB drives in the same array. However, it is not recommended to replace a 6GB drive with a 3GB drive. Although it is fully functional, the performance could be impacted. Replacing 3GB drives with 6GB drives is supported. This occurs more frequently as legacy parts are depleted and warranty service is required.
  • Consider the Revolutions Per Minute (RPM) while replacing a drive. Replacing drives with equal or greater spindle speeds within the same array is supported. You can use both 10000 RPM and 15000 RPM drives in the same enclosure. However, it is not recommended to replace a 15000 RPM drive with a 10000 RPM drive. Although it is fully functional, the performance could be impacted. Replacing 10000 RPM drives with 15000 RPM drives is supported. This scenario occurs while replacing parts from service inventory due to part unavailability.
  • SAS and SATA drives on the same backplane but not within the same virtual disk.
  • Solid-State Disks (SSD) and Hard Disk Drives (HDD) on the same backplane but not within the same virtual disk.