Unix Admin Reference : Replace DIMMs on Sun Fire T1000/T2000

On Sun Fire T1000/T2000 field could replace DIMMs individually, it is not required to replece
DIMMs by pair or bank.


For Sun Fire T1000

  • 2 Ranks per channel (Rank0 – 2xDIMMs, Rank1 – 2xDIMMs).
  • 4 DIMMs slot per channel – max total 8xDDR-2 DIMMs in 2 channels)
  • All channels must be populated in the same way (Both Rank0 and Rank1, OR Rank0 ONLY – min of 4xDIMMs)
  • All DIMMs must be identically sized

So Memory DIMMs must be installed four at a time (with one pair on each controller). All DIMMs must have identical capacity. Two basic memory configurations are supported: 4-DIMM or 8-DIMM

For Sun Fire T2000


  • 2 Ranks per channel (Rank0 – 2xDIMMs, Rank1 – 2xDIMMs).
  • 4 DIMMs slot per channel – max total 16xDDR-2 DIMMs in 4 channels)
  • All channels must be populated in the same way (Both Rank0 and Rank1, OR Rank0 ONLY – min of 8xDIMMs)
  • All DIMMs must be identically sized

So Memory DIMMs must be installed eight at a time (with one pair on each controller). All DIMMs must have identical capacity. Two basic memory configurations are supported: 8-DIMM or 16-DIMM

The Tx000’s DIMM modules are provided as pair when ordered with the option number, shown in the Sun System Handbook:

  • X7800A Buy 1GB (2 ? 512MB DDR2) Memory Expansion Kit, RoHS:Y
  • X7801A Buy 2GB (2 ? 1GB DDR2) Memory Expansion Kit, RoHS:Y
  • X7802A Buy 4GB (2 ? 2GB DDR2) Memory Expansion Kit, RoHS:Y
  • X7803A Buy 8GB (2 ? 4GB DDR2) Memory Expansion Kit

When a DIMM failure occurs, we can order single DIMM as CRU using the ‘spares ordering process’. And those CRU are also provided as one DIMM base in SSH:

  • 370-6207 512MB DDR2 DIMM, 533 MHz, RoHS:Y
  • 370-6208 1GB DDR2 DIMM, 533 MHz, RoHS:Y
  • 370-6209 2GB DDR2 DIMM, 533 MHz, RoHS:Y
  • 370-6210 4GB DDR2 DIMM, RoHS:Y

Tx000 also support mixing DIMMs from different vendors and it is not required to replace those DIMMs by pair.


Ramdev

Ramdev

I have started unixadminschool.com ( aka gurkulindia.com) in 2009 as my own personal reference blog, and later sometime i have realized that my leanings might be helpful for other unixadmins if I manage my knowledge-base in more user friendly format. And the result is today's' unixadminschool.com. You can connect me at - https://www.linkedin.com/in/unixadminschool/

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