[Info-vax] KZPAC / RAID Array 230 questions

[Alan Frisbie]

I recently acquired a DS20 with a KZPAC (RAID Array 230/Plus) SCSI
controller.  The firmware "show config" command also reports it as
a Mylex DAC960.

The DS20 QuickSpecs show the KZPAC as a supported option, but says
that 18.2 GB (or greater) drives are not supported.  Elsewhere, it
says that RAID sets can only be up to 32 GB.

Does anyone know the reason for these restrictions?  The manual for
the Mylex DAC960 says that it supports drives up to 2 TB, although
this might be for a later firmware version.

Oddly, the RAID Array 230/Plus User's Guide (AA-R07GA-TE) makes
no mention of these restrictions.  Are they real?  Are they a
function of the DS20 firmware or VMS version (QuickSpecs says a
minimum of v7.1-2)?

Were there any later updates that removed these restrictions?

Can someone please enlighten me?

Thanks,
Alan Frisbie