Koen,
what I was talking about is when the Symmetrix box is the network
replacement.

Mainframe <-Escon-- Symmetrix box <-SCSI -- HP/UX? <--SCSI<--localfile
on nonSymmetrix

The governing speed above is the slowest I/O above.  In the above, the
slowest xfer might be the nonSymmetrix file read?

Dave Sanders
Sr. Technical Consultant
Mass Mutual/The Blue Chip Co.

> -----Original Message-----
> From: Koen Leeten [SMTP:Koen_Leeten AT CEM DOT BE]
> Sent: Thursday, February 19, 1998 3:57 AM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      Re: high speed connectivity to OS/390
>
> Dave esconspeed(17M) for data on the symmetrix box should be ok since
> it is
> esconconnected to the mainframe but once your files aren't on the
> symmetrix
> box  i would think your speed drops to your networkspeed. So the only
> advantage is to local servers with there data on the symmetrix box.
> greetings, Koen