Re: Sharing filesystems between Linux guests

[Barany Sandor <bs@tud.at>]

You can share your minidisks, but it is impossible to disable caching in the
way you want. Caching buffers is a core design decision of UNIX/Linux.
However, you do not need to disable it. The usual trick is to mount all
shared filesystems read-only. 

See one of the classical white papers on the topic - from Oct 2000 -  at
http://www.ibm.com/servers/eserver/zseries/library/whitepapers/pdf/trilogy_technical_notes.pdf

Cloning of a master image set makes also a heavy use of the idea of dasd 
sharing, iyou can read a lot of about it in the following redbooks:

Linux on IBM  zSeries and S/390: ISP/ASP Solutions
Linux on IBM  zSeries and S/390: Performance Measurement and Tuning

Sándor Bárány
-- 
          "Growing Old is Mandatory, Growing Up is Strictly Optional"