We have a set of scripts that Setup the WHOLE multipath SAN disk for us. >From the chccwdev, zfcp_*, to fdisk and format and multipath setup and mount (Yes the WHOLE thing). We have found by placing sleep for 15 seconds between commands , especially the hardware level ones, increased our reliability for success.
Ben Duncan - Business Network Solutions, Inc. 336 Elton Road Jackson MS, 39212 "Never attribute to malice, that which can be adequately explained by stupidity" - Hanlon's Razor > -------- Original Message -------- > Subject: Re: Synchronous option for chccwdev -- was there a resolution? > From: David Boyes <[email protected]> > Date: Fri, July 27, 2012 9:05 am > To: [email protected] > > > > On which distro do you have problems with chccwdev? > > [snip] > > ..which appears to work fine. > > It's not a distribution issue; it's a timing-dependent issue that has to do > with how quickly your hardware responds. Your script will work *most* of the > time -- except when it doesn't. > Easy way to reproduce the problem is to try your script on a zPDT or a > heavily loaded system where the response to requests may not be immediate. > The udev settle command isn't a reliable indicator that the device is > available. > > I'm looking for a reliable method that works all the time. > > ---------------------------------------------------------------------- > 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 more information on Linux on System z, visit > http://wiki.linuxvm.org/ ---------------------------------------------------------------------- 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 more information on Linux on System z, visit http://wiki.linuxvm.org/
