Re: Write cache

[Andrew Dunstan <andrew(at)dunslane(dot)net>]

Tom Lane wrote:

> Andreas Pflug <pgadmin(at)pse-consulting(dot)de> writes:
>  
>
> > This would be the first time a SCSI disk lies about its write caching. 
> > There are plenty of low-cost (i.e. IDE) disks out there having a hidden 
> > write cache, but AFAIK a generic SCSI tool is usable to enable/disable 
> > the write cache.
> >    
>
> A SCSI disk shouldn't lie about write completion in any case; there's no
> need to because the interface spec is inherently multi-threaded (unlike
> IDE).  See past discussions.
>
>  
Unless I am reading it wrong,

http://www.fcpa.com/download/download/hard-drives/map10krpm-manual.pdf 
appears to suggest (page 5-21) that the write cache can be disabled. How 
I am not sure - maybe using one of the tools Andreas mentioned.

cheers

andrew