I'm doing some research on
HP HDD SAS 900G 6G/s 10K-RPM 2.5" hard-drives for a purchase order. On Amazon or Ebay there are all kinds of part numbers and/or spare numbers for example
619291-B21 619463-001 619286-004 which add to my confusion.
My question is: how do part number and spare number affect the quality of the product. Should I be worried about part numbers when purchasing server hard-drives?