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how to clean up Omnistack /core 100% used.

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Occasional Contributor

how to clean up Omnistack /core 100% used.


Anyone here know how to clean up /core disk? 

Filesystem Size Used Avail Use% Mounted on
udev 56G 4.0K 56G 1% /dev
tmpfs 12G 8.3M 12G 1% /run
/dev/sda1 9.1G 5.2G 3.5G 60% /roroot
tmpfs-root 56G 164M 56G 1% /tmproot
overlay 56G 164M 56G 1% /
/root/dev/dm-3 453M 2.3M 423M 1% /mnt
/root/dev/sda2 923M 92M 768M 11% /var/log
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 56G 1.1M 56G 1% /run/shm
none 100M 0 100M 0% /run/user
/dev/sdb1 30G 165M 29G 1% /cfgdb
/dev/sdb2 40G 819M 39G 3% /ctrdb
/dev/sdb3 4.8G 27M 4.8G 1% /pico
/dev/sda3 524M 6.4M 518M 2% /boot/efi
/dev/mapper/vg0-core 101G 101G 0 100% /core


Re: how to clean up Omnistack /core 100% used.

That is not something it is safe to be playing with. If you are getting capacity warnings from the system you should open a support call.

While you CAN poke around inside the OVC now, that doesn't mean it is safe to do so. I have no idea what that LVM is used for, and the fact that it is full, absent an alarm, might not be an issue.

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Occasional Contributor

Re: how to clean up Omnistack /core 100% used.

Thanks John for the reply. 

New case 5337480575 has been logged for OVC - are running out of disk space and they advise below.

recommended to take a backup of the file through winscp, delete the folder which will give us disk space in OVC and recreate it .

I'm hesistant with the solution they provide as it may break OVC VM.



Re: how to clean up Omnistack /core 100% used.

/core is used for dumps  in the event of a crash the files gernerated are used for diagnostic purposes  and will persist across reboots.

The advice is good these files may be deleted without issue.Not sure if i would bother winscping the files most of them are old and the other logs used for diagnosise  will most likely have rotated,viewing the cores in isolation will not give a full picture.





I am an HPE employee
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Occasional Contributor

Re: how to clean up Omnistack /core 100% used.

This has been resolved. Thanks.


deleted the file "vmcore-incomplete" under /core/crash/2019XXX folder