presto man page on OpenBSD

presto man page on OpenBSD

Printed from http://www.polarhome.com/service/man/?qf=presto&af=0&tf=2&of=OpenBSD

PRESTO(4)	      OpenBSD Programmer's Manual (SPARC)	     PRESTO(4)

NAME
     presto - Prestoserve battery-backed memory

SYNOPSIS
     presto* at sbus?

DESCRIPTION
     The Legato Prestoserve NVRAM cards used to be part of the ``NFS
     accelerator'' product, which used the cards memory as an NFS-dedicated
     cache, increasing performance of NFS servers exporting filesystem as NFS
     protocol, version 2.

     The presto driver does not attempt to achieve such a behaviour, which is
     questionable with the advent of NFS protocol, version 3.

     Instead, it will provide direct access to the NVRAM, as a block device.

FILES
     /dev/prestoup	block mode Prestoserve card number u, partition p
     /dev/rprestoup	raw mode Prestoserve card number u, partition p

SEE ALSO
     intro(4), disklabel(5), disklabel(8), MAKEDEV(8)

BUGS
     The NVSIMM flavour, designed for SPARCstation models 10 and 20, is not
     supported yet.

OpenBSD 4.9			 July 11, 2010			   OpenBSD 4.9

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