Difference between revisions of "RA92 disk drive"

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1.506 GB (formatted) [[SDI]] [[Winchester disk]].  
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The '''RA92 disk drive''' was a 1.506 GB (formatted) [[Standard Disk Interconnect]] [[non-removable-media disk]] from [[Digital Equipment Corporation|DEC]]. It is member of the [[Digital Storage Architecture]] family. It was internally operated by three [[microprocessor]]s.
 
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* 1.987 GB (un-formatted)
 
* 3,099 User Cylinders
 
* 3,099 User Cylinders
 
* 14 Heads (13 data + 1 servo)
 
* 14 Heads (13 data + 1 servo)
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* 2,942,849 User Blocks
 
* 2,942,849 User Blocks
 
* 16 ms Average Seek
 
* 16 ms Average Seek
* 8.33 ms Average Latency
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* 8.81 ms Average Latency
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* 26.56 cm x 22.19 cm x 68.47 cm Size
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* 31.8 kg/ 70 lbs Weight
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The RA92 can also be connected in a dual-[[hardware port|port]] arrangement, permitting its use by two [[device controller|controllers]].
  
 
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[[Category:MSCP Disk Drives]]
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==External links==
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* [http://www.vaxhaven.com/images/4/42/EK-ORA90-UG-002.pdf RA90/RA92 Disk Drive User Guide] (EK–ORA90–UG–002)
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* [http://bitsavers.org/pdf/dec/disc/ra90/EK-ORA90-SV-003_RA90_RA92_Service_Jun90.pdf RA90/RA92 Disk Drive Service Manual] (EK-ORA90-SV-003)
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* [http://www.vaxhaven.com/images/8/81/EK-RA90H-IN-002.pdf RA90/RA92/H9643 Cabinet Installation Guide] (EK-RA90H-IN-002)
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[[Category: MSCP Disk Drives]]
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[[Category: DEC Non-removable-media Disks]]

Revision as of 17:19, 17 August 2023

The RA92 disk drive was a 1.506 GB (formatted) Standard Disk Interconnect non-removable-media disk from DEC. It is member of the Digital Storage Architecture family. It was internally operated by three microprocessors.

  • 1.987 GB (un-formatted)
  • 3,099 User Cylinders
  • 14 Heads (13 data + 1 servo)
  • 73 Sectors (+ 1 spare)
  • 2,942,849 User Blocks
  • 16 ms Average Seek
  • 8.81 ms Average Latency
  • 26.56 cm x 22.19 cm x 68.47 cm Size
  • 31.8 kg/ 70 lbs Weight

The RA92 can also be connected in a dual-port arrangement, permitting its use by two controllers.

External links