256 channels would be my guess. SCSI over FCP gives better performance than emulated ECKD as well. See Neale's presentation on the web site.
Mark Post -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of McKown, John Sent: Friday, February 20, 2004 1:13 PM To: [EMAIL PROTECTED] Subject: Re: z/VM access to EMC (was: Accessing DASD on a Shark from Linux under z/VM) -snip- I'm curious. One of the benefits touted, and true, about Linux on zSeries vs. some other platform, is the zSeries' strength in I/O. Is this still true with FCP attached SCSI DASD? Why would the zSeries drive SCSI DASD better than Intel or Sun? -- John McKown Senior Systems Programmer UICI Insurance Center Applications & Solutions Team
