Peter,
I had this problem in 2 situations:
1. High inter-LIM traffic disturbs dump. Dump to be done late night.
2. Problems on HDU. Dusk to be unmount, reformatted and mount back.
To keep data in existing HDU (just in case), try to install new one and format it.
Regards
PS. If you don’t know how to change HDU procedure is this:
Blocking NIU/IPU-Port:
BLEQI:EQU=1-X-XX-0
FIMOE:SUBFS=SYSSUBFS11;
FIMOE:SUBFS=SYSSUBFS21;
IOSIE:NODE=SYSN,IODEV=SYSDISK1;
Change HDU
IOSII:NODE=SYSN,IODEV=SYSDISK1,SIPOS=3,SUBFS=SYSSUBFS11&SYSSUBFS21;
FICRI:SUBFS=SYSSUBFS11,SIZE=60;
Y;
FICRI:SUBFS=SYSSUBFS21,SIZE=60;
Y;
FIMOI:SUBFS=SYSSUBFS11;
FIMOI:SUBFS=SYSSUBFS21;
BLEQE:EQU=1-X-XX-0,ALLFM=YES;