[Solved] Seagate ST3000DM001-9YN166: Load Cycle Count

intothevoid wrote:

The problem appears isolated to the disk test. So that would seem to rule out the supply and the contacts - they wouldn't mysteriously heal when the test completes. It is conceivable that the disk test includes some commands that provoke the drive to fail. For instance, malformed/illegal commands, or perhaps legal but unusual commands that the drive firmware doesn't handle properly. I'd suggest a support case. In the meantime I would simply not run that test! And record/track the current counts and confirm that they never increase in normal operation. Is that test run automatically at boot, or on a schedule? I've never manually triggered it. Both times my drive 'failed' (and had a higher command timeout value afterwards) the NAS was in normal operation. EDIT: Included quote for top of page clarity.

I believe he means the "full disk test" function on the boot menu, which is described in the V2 hardware manual. If so, that test is only done upon request.

It looks to me like there is more than one issue here related to command timeouts for this disk model. For some, the command timeout errors in the alerts/log appear to be false (at least the count is reported as 0 when looking directly at the SMART stats). Others have some real command timeout errors, but the count in the alert is wrong. In spett's case, the timeout counts (though huge) are confirmed when looking directly at the SMART stats, and these counts only go up when he manually runs a disk test on the ReadyNAS.

I'm not sure how to untangle this now, since we have several folks seeing different things posting on the same thread (whose title is not about command timeouts at all!).