UFS How to split vinumdrive?

G

gulli

I would like to kindly ask you, whether is possible to split/decrease already created vinumdrive?

I need handover few GB from vinumdrive1 for UFS. To have some GPT free.
Code: 
=>          34    102399933  ada0  GPT    (48G)
   98566306    3833661             - free -  (1.8G)
Code: 
D vinumdrive1           State: up       /dev/da1p1      A: 1575567/1716879 MB (91%)
 
Shrinking a partition is quite a dangerous exorcise. But I would suggest reinstalling or at least completely removing gvinum(8) as it's going to be removed in a future version. Besides that, what's the point of using a gvinum(8) volume if it only has one disk/partition?

Code: 
DEPRECATION NOTICE
     gvinum and associated geom(4) kernel support is deprecated, and may not
     be available in FreeBSD 14.0 and later.  Users are advised to migrate to
     gconcat(8), gmirror(8), gstripe(8), graid(8), or ZFS(8).  More
     information is available at
     https://wiki.freebsd.org/DeprecationPlan/gvinum.
 
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