IBM DS6000 Series Parts installation and repairs, Parts replacement, CRU parts versus FRU parts

additional guidance on the CRU replacement procedure is required. This includes a situation in which it is unclear which CRU has failed. This will prevent an incorrect maintenance procedure from taking place. After the defective CRU has been replaced, the CRU fault indicator will turn off. Pressing the Remind button will have no effect on the state of the CRU Endpoint Indicator.

3.5.4 Parts installation and repairs

The DS6000 has been designed for ease of maintenance. This allows the user to perform the vast majority of service tasks.

Parts replacement

With the DS6000, an IBM Systems Service Representative (SSR) is not needed to perform the majority of service tasks required during normal operations. Using light path diagnostics it is possible for the user to perform problem determination, parts ordering, and parts replacement.

CRU parts versus FRU parts

Within all IBM machines, spare parts are divided into two categories: CRU parts (customer replaceable units) and FRU parts (field replaceable units). If a part is designated a CRU, this implies that it can be safely and easily replaced by an end user with few or no tools. If a part is designated a FRU, then this implies that the spare part needs to be replaced by an IBM Service Representative. Within CRU parts, there are currently two tiers: Tier 1 CRUs are relatively easy to replace, while Tier 2 CRUs are generally more expensive parts or parts that require more skill to replace.

Tier 1 CRU parts:

￿Battery backup units

￿Cables - Ethernet, serial, fibre optic, and power

￿Disk drive modules

￿Operator panels - front and rear display

￿Power supplies

￿RAID controller and SBOD controller cards

￿SFPs (2Gbps small form factor plugable fibre optic units)

Currently the only Tier 2 CRU is the entire chassis for either the storage or expansion enclosures. There are currently no FRU parts for the DS6000.

While the DS6000 is under warranty, IBM will ship a replacement CRU to the machine location free of charge, provided the machine is located in a metro area that is serviced by IBM. You should check with your IBM sales representative or IBM Business Partner for details. Installation of Tier 1 CRUs is the customer’s responsibility. If an IBM SSR installs a Tier 1 CRU at the customer’s request, there will be a charge for the installation. However, for machines with an on-site same-day response service agreement, IBM will replace a Tier 1 CRU at the customer’s request, at no additional charge. The customer may choose to install a Tier 2 CRU themselves, or request IBM to install it, at no additional charge. When the customer calls in for service and the problem can be fixed by a Tier 2 part, the customer is given the choice to decide at that point if they have the skills on hand to replace the part.

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