[Bug 1675770] Re: lvcreate cannot use more than 8 stripes

[ChristianEhrhardt]

To easily check this without an unlikely number of devices one can
easily follow the path we use for quick tests, here modified for this
case:

$ WORKDIR=$(mktemp -d)
$ for i in $(seq 1 64); do
$   dd bs=1M count=64 if=/dev/zero "of=${WORKDIR}/dev${i}"                       
$   sync                                                                         
$   sudo losetup "/dev/loop${i}" "${WORKDIR}/dev${i}"
$ done
$ sudo vgcreate --verbose testvg /dev/loop[1-9]*
$ sudo lvcreate --extents "128" --stripes "64" --name testlv testvg

With that I could confirm zesty being affected and X/Y being ok.

** Changed in: lvm2 (Ubuntu)
       Status: New => Triaged

** Changed in: lvm2 (Ubuntu)
     Assignee: Skipper Bug Screeners (skipper-screen-team) => ChristianEhrhardt (paelzer)

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https://bugs.launchpad.net/bugs/1675770

Title:
  lvcreate cannot use more than 8 stripes

Status in Ubuntu on IBM z Systems:
  New
Status in lvm2 package in Ubuntu:
  Triaged

Bug description:
  Trying to create a logical volume with 64 stripes. Get the error message 
  Using default stripesize 64.00 KiB.
    Only up to 8 stripes in striped supported currently
    Run `lvcreate --help' for more information

  Problem fix available at : https://sourceware.org/git/?p=lvm2.git;a=commit;h=2fcbe34fe85fa57e1e2835dfba95fa21387377b6
   
  ---uname output---
  Linux s42lp01 4.10.0-8-generic #10-Ubuntu SMP Mon Feb 13 14:06:04 UTC 2017 s390x s390x s390x GNU/Linux
   
  Machine Type = z systems: Type 2964, Model 701 NC9 
   
  ---Debugger---
  A debugger is not configured
   
  ---Steps to Reproduce---
   lvcreate --extents "65536" --stripes "64" --name "LogVol00" vg00

  Userspace tool common name: lvcreate  
  The userspace tool has the following bit modes: 64-bit 
  Userspace rpm: lvm2
  Userspace tool obtained from project website:  na
   
  Already fixed upstream. Will this be integrated into Ubuntu?

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