Re: Seagate ST6000DM003-2CY186 "flapping". Disconnecting and reconnecting randomly.
Daniel Lysfjord <[email protected]>
| Newsgroups | gmane.os.freebsd.questions |
|---|---|
| Message-ID | <[email protected]> |
On 2026-08-12 16:12, John Gaskill wrote: > IIRC, in the early days of so called SMART technology, it's purpose was > to save wear and tear on > users and machines with limited intelligence or understanding of how > systems worked, by > occasionally conducting self-tests of the drive and reporting to the > user if problems were coming > up shortly. Unfortunately, it didn't always work, and reported lots of > false "imminent deaths." It's a way to *report* data to userspace. Self-tests and other thingymabobs are configurable, yes. Never seen them enabled by default. Though, I have never used the manufacturers software packages for Windows, so.. YMMV? > > MTBFs in those days were shorter than now, though still quite long in > general absolute terms. > > However, like MS bloatware overloading RAM and drives, SMART technology > could be wrong > in its assessments of the hardware is it supposed to safeguard. > > As disk drives increased in capacity and got less expensive, marketing > wars erupted and SMART > technology seemed to be a way to get consumers to upgrade. > > What you perceive as "flapping", disconnecting and reconnecting > randomly may simply be > the drive going through its self-test paces which would have to take > awhile for a 6TB drive. His disk disconnects from the system. An online self-test will *never* (bar any extremely severe bugs in the firmware) pull the drive offline. > > > On Tuesday, August 11, 2026 at 09:20:53 AM PDT, Daniel Lysfjord > <[email protected]> wrote: > > On 2026-08-11 16:46, John Gaskill wrote: >> As long as I have disabled any SMART drive technology at the UEFI/BIOS >> level on any >> computer I have owned, there has never been a drive failure or >> problem. >> >> I assume your drive SMART technology functions are also disabled? > ----8<----snip---->8------ > > Why would I? It's part of the drives firmware, and none of my computers > takes any actions based on those numbers.