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[2003:df:704:24d0:d8fc:6ebd:f7c6:fa15]) by smtp.gmail.com with ESMTPSA id dx7sm5608986ejb.120.2020.12.05.10.07.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 05 Dec 2020 10:07:52 -0800 (PST) From: Dr Rainer Woitok X-Google-Original-From: Dr Rainer Woitok Received: by tux (sSMTP sendmail emulation); Sat, 05 Dec 2020 19:07:51 +0100 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <24523.52343.49602.311308@tux.speedport.ip> Date: Sat, 5 Dec 2020 19:07:51 +0100 To: gentoo-user@lists.gentoo.org, Michael Subject: Re: [gentoo-user] Is there a way to misconfigure USB ports in the kernel? In-Reply-To: Msg <1704314.3VsfAaAtOV@lenovo.localdomain> of 2020-11-27 19:07:17 +0000 from confabulate@kintzios.com References: <24510.38475.914653.374734@tux.speedport.ip> <1811573.taCxCBeP46@lenovo.localdomain> <24513.8921.552468.210937@tux.speedport.ip> <1704314.3VsfAaAtOV@lenovo.localdomain> X-Mailer: VM 8.0.12-devo-585 under 21.5 (beta34) "kale" XEmacs Lucid (x86_64-pc-linux) X-Archives-Salt: bbb7733e-c4a2-4d15-8f6d-0d7af7b0e66c X-Archives-Hash: 444a3ca781ddfe04b9a244d5ed0c0b69 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