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How do I make Solaris2 use my old ADAPTEC ACB-4000 and Emulex MD-21 diskcontrollers?

April 26, 2017acb-4000 Adaptec emulex md-21 solaris2

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How do I make Solaris2 use my old ADAPTEC ACB-4000 and Emulex MD-21 diskcontrollers?

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As with any hardware addition, first try the obvious (boot -r after installing and power-cycling everything). The adaptec is no longer supported; man -s7 sd no longer even lists it! So I guess they go over the cliff. Either that, or take the drives out and put them on a PC, where ST506 MFM drives are still supported. The MD21 should work, though some people report that SCSI doesn’t work in 4/260 boxes (bug-id #1118752), but that’s fixed in 2.3 and later.