On Dec 7 18:04, Corinna Vinschen via Cygwin wrote: > On Dec 7 15:35, Lavrentiev, Anton (NIH/NLM/NCBI) [C] via Cygwin wrote: > > Hi Corinna, > > > > I have a question about this tool getVolInfo that has recently "made the > > news". > > > > Just updated my version to the latest and tried it on my drive C:, and > > specifically this is what bugs me: > > > > $ /usr/lib/csih/getVolInfo.exe . > > ... > > SectorInfoFlags : 0x03 > > SSINFO_FLAGS_NO_SEEK_PENALTY : FALSE > > SSINFO_FLAGS_TRIM_ENABLED : FALSE > > > > I presume the values shown are described here: > > https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-fscc/3e75d97f-1d0b-4e47-b435-73c513837a57 > > > > But my drive (well, all NTFS) does have TRIM enabled: > > > > $ fsutil behavior query disabledeletenotify > > DisableDeleteNotify = 0 > > > > Which is also confirmed by other tools... (like SSD "dashboards" etc.) > > Yes, but! > > fsutil behavior query disabledeletenotify *only* shows if the OS > supports disabledeletenotify, i.e., TRIM, on a system-wide base(*). > It does *not* tell you if TRIM is really enabled on an existing > filesystem on any of your drives. > > 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. > > I have a laptop with a Samsung 830 SSD, and getVolInfo prints: > > SectorInfoFlags : 0x0f > SSINFO_FLAGS_NO_SEEK_PENALTY : TRUE > SSINFO_FLAGS_TRIM_ENABLED : TRUE > > I'm running a with NTFS and ReFS on virtual filebacked drives, ^^^ a Qemu/KVM VM
> the ReFS actually spanning two virtual drives. > > csih prints > > SectorInfoFlags : 0x0b > SSINFO_FLAGS_NO_SEEK_PENALTY : FALSE > SSINFO_FLAGS_TRIM_ENABLED : TRUE > > for the NTFS FS, and > > SectorInfoFlags : 0x03 > SSINFO_FLAGS_NO_SEEK_PENALTY : FALSE > SSINFO_FLAGS_TRIM_ENABLED : FALSE > > for the ReFS FS. Needless to say that on both systems, fsutil prints: Windows-10$ fsutil behavior query disabledeletenotify NTFS DisableDeleteNotify = 0 (Disabled) ReFS DisableDeleteNotify = 0 (Disabled) Windows-11$ fsutil behavior query disabledeletenotify NTFS DisableDeleteNotify = 0 (Allows TRIM operations to be sent to the storage device) ReFS DisableDeleteNotify = 0 (Allows TRIM operations to be sent to the storage device) > (*) FWIW, on Windows 11, this is even split into two values for NTFS > and ReFS separately. ...and on W10 as well. -- 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
