Michael, On Friday, 2020-11-27 19:07:17 +0000, you wrote:
> ... > A 4k block size is recommended for ntfs-3g which is the default sector > created > by fdisk and friends on Linux these days. This will align your partition > optimally. In addition, mkfs.ntfs will use 4096 bytes as the default cluster > size, so you should be good in that respect. > > Another setting you may want to try is mounting the USB with 'big_writes' - > check the man page. This should help particularly with large files, which > will use larger blocks up to 128KB when copying data to the NTFS. Both, the VeraCrypt command line (--fs-options=big_writes) and the Vera- Crypt GUI (under "Settings --> Preferences") allow setting this mount option. But $ mount | grep veracrypt never shows it, initially causing me to erroneously believe it wasn't set and to try finding on the web another way of setting it. By pure chance I finally found out that $ ps -ef | grep veracrypt lists a "/usr/sbin/mount.ntfs" task which shows the options really in effect. However, I haven't yet had the time to test the effect of this option when writing plenty of really big files. I will report on that later. Sincerely, Rainer
