Celerra can store two complete 1 GB dump files and four partial dumps in memory slots marked for this purpose. Once the slots
are marked in use as a result of previous memory dumps, future panic dumps cannot be stored and are lost from memory.
The only way to allow for future memory dumps to be saved are to free the memory slots by "marking" them as available for reuse.
Cleaning up memory slots from Celerra by producing dump files:
1. Check Linux Control Station /nas/var partition to make sure that at least 1 GB of room is available:
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/ndf1 1.7G 46M 1.6G 3% /nas/var
2. Run following command with appropriate switches:
#/nas/sbin/dump_slot -v -F [full dumps] | -v [partial dumps]
Creating dump file "/nas/log/slot4.dump0"
Note: A dump is created in /nas/log directory by default. Use -d switch followed by path to redirect dump to an alternate directory, such as /nas/var/dump.
3. Answer Yes to all questions except if you do not want to continue with a second dump at the same time. ["Continue Y/N"], answer "N" to breakout of the script.
4. After you are done clearing the slots, use the following commands to ensure that the slots are marked so that future dump files can be written:
# /nas/sbin/dump_slot -c 0
# /nas/sbin/dump_slot -c 1
# /nas/sbin/dump_slot -c 2
Also refer to Knowledgebase solution ID emc95870 for more information on the issue.