Comment 2 for bug 1332722

My drive showing the issue is a spinning drive... It's a Western Digital 3TB SATA WD30EZRX.

Filesystem doesn't seem to matter. The drive has a number of partitions; ext4, NTFS. My issue - the drive intermittently disconnecting and reconnecting - happens regardless of the activity... Using dd to write to the partition raw, copying files to a mounted ext3 or NTFS partition. Problem seems to be more related to the throughput being experienced. I've got nothing definitive, but I get the *feeling* it might happen when either there is high usage (i.e. performing a dd or copy operation that is going at full speed) or perhaps when usage drops off (a copy operation is happening and another process needs to use CPU for a moment).

I'm open to providing more information or tests if requested, but I do need some guidance about the useful information to provide as I'm a beginner at hardware issues in Linux.