Not sure if it is useful. Will put a plug in for a rsync hard based backup system primarily focused on macOS. If it is speed you are after, then this is probably not the right / helpful tool. But feel free to pick out what ever is useful for you : http://www.lbackup.org
Henri > On 29/06/2020, at 7:29 AM, Matthias Schniedermeyer via rsync > <rsync@lists.samba.org> wrote: > > On 28.06.2020 16:46, Rupert Gallagher wrote: >> ????????????????????? Original Message ????????????????????? >> On Sunday 28 June 2020 13:58, Matthias Schniedermeyer <m...@citd.de> wrote: >> >> destination: >> ST5000LM000-2AN1 sata hdd >> Writing speed : 74 MB/s >> Reading speed : 89 MB/s > > And this HDD is a SMR model(*) on top of beeing a 4k sector model emulating > 512 byte sectors. > So alignment needs to be correct and the filesystems must use 4k sectors. > > This HDD is NOT suitable for beeing used for small files and a hardlink-farm. > > SMR HDDs only reach best performance if used "like a tape drive" with large > and linear writing. > > I use SMR HDDs myself and only use them for "really large" files (>500MB per > file), otherwise they perform very poorly. > I also align my partitions correctly and set XFS to "4k sector"-size. > Which nowadaya means: I use 4k sectors for anything. As i only have been > using 4k sector HDDs for nearly as long as they are on the market (IIRC >1 > decade). > Also SSDs are usually optimized for 4k sectors too. > > > *: > https://en.wikipedia.org/wiki/Shingled_magnetic_recording > > > -- > > Matthias > > -- > Please use reply-all for most replies to avoid omitting the mailing list. > To unsubscribe or change options: > https://lists.samba.org/mailman/listinfo/rsync > Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html -- Please use reply-all for most replies to avoid omitting the mailing list. To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
