IBM서비스중 CRU 1과 CRU 2의 차이점

CRU는 고객이 직접 교체하는 부품
예를 들면 하드 , 메모리 , 같은 부품을 CRU로 구분합니다
CRU1은 툴이 필요없고
CRU2는 나사 4개정도 ^^ 이건 요청하면 IBM에서 도와줍니다.

아래 구분이 있길래 찾아봤네요

Notes:

1. Field Replacement Units (FRU) that are identified in the CRU column by 1 or 2 are Customer Replaceable Units.

• Each FRU is available for all types or model, unless specific types or models are specified.

• A CRU (Customer Replaceable Units) is identified 1 or 2 in the CRU ID column. 1 means that the part is a Tier 1 CRU; 2 means that the part is a Tier 2 CRU. An N in the CRU ID column means that the part is not a CRU.

  • Tier 1 CRU:
    • No tools required.
    • A coin or a thumb screw is acceptable.
    • Minimal technical expertise is required.
    • Minimal problem determination is required-less than five minutes.
      
  • Tier 2 CRU:
    • Up to 4 screws or fasteners have to be removed.
    • Some technical experience is required.
    • IBM Support Center assistance may be used.
    • Problem determination can be done by customer, either on site or with IBM Support Center assistance.