invalid volume file count
Running Onyx, it tells be my disk needs repair
disk utility/disk repair (run from separate boot drive) gives me this result:
invalid volume file count
it should be 689947 instead of 689948
Disk Utility successfully repaired the disk.
I've read other posts similar to this, none of which answers my questions:
1. What is causing this? It's the second time this month this has occurred, never before in six years.
2. What steps do I take to prevent recurrence?
Thanks.
joe