Ah, yes, so Q DASD FREE will report on free space... but will it return CONTIGUOUS free space (ISTR minidisk granularity is in "cylinders")? Or will it just be the count of cylinders (or whatever "granularity" the device, like FBA, which might not be reported in cylinders) that haven't been allocated somewhere within the knowledge of the z/VM system?
A long time ago in an OS far far away from z/VM -- Exec 8, as if anyone here has any experience with it -- had an "extended acquire" that would guarantee contiguous space... if it could be acquired. [VOICE SOUNDS_LIKE="Harrison Ford"]"DASD ain't like DOS partitioning, boy!"[/VOICE] I will grant that my first experience with a logical volume manager (in AIX 3.2.5) had me bufuddled until I felt like I'd found the Holy Grail. There had been too many times before-- in various UNIX systems-- that I only had caught the Holy Hand Grenade of Antioch as it was ticking down. -soup On Sat, Jun 21, 2014 at 9:27 PM, Scott Rohling <[email protected]> wrote: > Normally - the z/VM sysprog would have a good handle on that... All anyone > can say is that QUERY DASD FREE just shows you what is 'currently' NOT in > use by this system or a guest. It could be in use by another LPAR - it > could be used by a guest that isn't currently running. In my various > customer sites, we usually label the DASD to show it's available (AVxxx or > FRxxxx). But whoever manages the DASD on z/VM should know all this. If > that job has fallen to you - then we at least need to understand your > environment in some detail to help you find out what you can safely use. > > Scott Rohling > > > On Sat, Jun 21, 2014 at 6:18 PM, Cameron Seay <[email protected]> wrote: > > > Thanks Scott. What information is needed. There has to be a way to > > determine which volumes you can use. > > > > Thanks again. > > > > > > On Sat, Jun 21, 2014 at 9:05 PM, Scott Rohling <[email protected]> > > wrote: > > > > > Sorry - should have been 'DASD which is currently NOT in use by a user > or > > > the system'.. > > > > > > Scott Rohling > > > > > > > > > ---------------------------------------------------------------------- > > > 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/ > > > > > > > > > > > -- > > Cameron Seay, Ph.D. > > Department of Computer Systems Technology > > School of Technology > > NC A & T State University > > Greensboro, NC > > 336 334 7717 x2251 > > > > ---------------------------------------------------------------------- > > 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/ > -- John R. Campbell Speaker to Machines souperb at gmail dot com MacOS X proved it was easier to make Unix user-friendly than to fix Windows "It doesn't matter how well-crafted a system is to eliminate errors; Regardless of any and all checks and balances in place, all systems will fail because, somewhere, there is meat in the loop." - me ---------------------------------------------------------------------- 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/
