Extract from /var/log/messages:
Jul 12 19:25:45 xxxxxxxx vxfs: [ID 702911 kern.notice] NOTICE: msgcnt 560 mesg 001: V-2-1: vx_nospace - /dev/vx/dsk/sasappp_pzm_dg/pzmvol file system full (4096 block extent)
Jul 12 19:25:45 xxxxxxxx vxfs: [ID 702911 kern.warning] WARNING: msgcnt 561 mesg 031: V-2-31: vx_disable - /dev/vx/dsk/sasappp_pzm_dg/pzmvol file system disabled
Jul 12 19:25:45 xxxxxxxx genunix: [ID 723222 kern.notice] 000002a11484f2d0 vxfs:vx_disable+74 (64027defe000, 6402ba85e1c4, df0000, 0, 6402ba85e1c4, 6401db8c8340)
Jul 12 19:25:45 xxxxxxxx genunix: [ID 723222 kern.notice] 000002a11484f380 vxfs:vx_idalloc_off1+3c4 (640276745018, 1c, 0, 2a11484f49c, de2000, 2a11484f490)
The cause is the dalloc feature of Veritas Filesystem. In the fix, the feature is disabled if the filesystem becomes full, but enabled again once space is freed up within the filesystem.
VxFS 7.3.1.3202 was supplied to address. Please refer to Veritas Technical Support for the fix.