Thank you for your prompt reply! > TRIM is only enabled on a filesystem, if the underlying drive > actually supports TRIM. The majority of SSDs support it, but not > necessarily all SSDs. > > The above values, in particular SSINFO_FLAGS_NO_SEEK_PENALTY being > FALSE, indicate that your drive is actually not an SSD, but a rotating > harddisk, or it's an SSD which fakes to be a rotating harddisk.
Well, I don't have any rotating HHDs in my computer. 4 of my SSDs report this: TRIM Command: Supported (Deterministic Read After TRIM, Words = 0) and the last one (an older drive, indeed) report this: TRIM Command: Supported (Indeterminate Read After TRIM) But my C: drive (where Cygwin is installed) is a newer drive (one of those 4). That's odd. Also, the fact that I am unable to restore any files after deletion (all contents become 0), just experimenally supports the fact that the drives do trim the deleted sectors. (And no, I do not have any secure deletion or anything like that enabled; when this PC had HDDs in the past, the files were perfectly recoverable.) Anton Lavrentiev Contractor NIH/NLM/NCBI -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
