Re: Summary of the Multi-Path BOF at OLS and future directions

Christoph Hellwig
2003-08-08T12:15:46Z

On Fri, Aug 08, 2003 at 08:13:11AM -0400, jansen, frank wrote:
> The delineation between the EMC boxes that require vs. not require
> a "TRESPASS" command lies not with their age, but rather their family.
> The CLARiiON family of Storage Arrays require a "TRESPASS" command to
> move a LUN from one redundant Storage Processor (SP) to another. On the
> other hand, Symmetrix Storage Arrays do not use any such behavior. In
> a nutshell, the Symmetrix is active on all paths, on which the LUN is
> presented, whereas the CLARiiON is active on one SP and passive on the
> other SP.

So it's rather DG arrays vs EMC ones, ok.