I'm confused by your 'host adapter' questions. The SAN is an EMC device. The STK mainframe dasd is ESCON attached to the z800. 3 LPARS share 3 RVA's. Now that we are using snapshot we have 6 paths to each chpid. When we were testing we had 8. I'm pretty SAN illierate but I can ask the storage folks I'm just not sure what to ask.
"Ferguson, Neale" wrote: > How many paths to SAN switch? How many host adapators on the STK? How > many ranks are the SCSI disks split over? The HA is the real limiting > factor here. A maxed out ESS (i.e. all possible CHPIDs & HA in use to > disks split) is a capable of 250 MB/s (read) and about half that for > write. > > -----Original Message----- > We have 8 paths to each chpid on the mainframe dasd. > And I/O subsytem. > SAN is network and is fiber. > I had wondered if the paths had helped swing the stats. > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
