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  • Oh. Spock w/cache and 256K by 18 bits [take me to Bermuda !]

    From Louis Ohland@21:1/5 to All on Wed Feb 1 07:35:15 2023
    https://www.ardent-tool.com/docs/pdf/ibm_scsiwc_trm.pdf

    page 9

    Disk Cache
    The disk cache keeps frequently-used SCSI device data available for
    immediate transfer to the system. The disk cache also holds data
    until it can be transferred to the system by the system interface/bus
    master DMA controller. The disk cache is organized as 256K by 18
    bits, including two parity bits, for a total of 512K bytes (K = 1024).


    https://www.ardent-tool.com/76_77/Bermuda.html#Bermuda_Planar

    U23 HM514280ALJ8 256Kx18 DRAM

    Sooo... looks to me that the Bermuda fully resembles Spock with 512K
    cache...

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  • From IBMMuseum@21:1/5 to All on Wed Feb 1 09:56:52 2023
    Sooo... looks to me that the Bermuda fully resembles Spock with 512K
    cache...

    ...and the Gearbox 800 DASD card, along with the 9585 'X' planar...

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  • From Louis Ohland@21:1/5 to IBMMuseum on Wed Feb 1 16:09:38 2023
    Just a relief after suggesting a Bermuda as a good platform.

    IBMMuseum wrote:
    Sooo... looks to me that the Bermuda fully resembles Spock with 512K
    cache...

    ...and the Gearbox 800 DASD card, along with the 9585 'X' planar...


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