Path: csiph.com!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Lawrence D'Oliveiro Newsgroups: alt.os.linux Subject: Re: When I back-up .... Coping my Entire Internal HD to an external HD Date: Mon, 24 Mar 2025 23:20:34 -0000 (UTC) Organization: A noiseless patient Spider Lines: 13 Message-ID: References: <5kv5alxctp.ln2@Telcontar.valinor> <7t5malx9rp.ln2@Telcontar.valinor> <1vsvalx2ng.ln2@Telcontar.valinor> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Tue, 25 Mar 2025 00:20:34 +0100 (CET) Injection-Info: dont-email.me; posting-host="c7e10768ad7fee0a275def779eb24bab"; logging-data="2070942"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/RYO9tCOVlHHoQ5+OrA6F8" User-Agent: Pan/0.162 (Pokrosvk) Cancel-Lock: sha1:glZLrMvkdKiDDLsCd6KJR19lSCg= Xref: csiph.com alt.os.linux:81182 On Fri, 21 Mar 2025 11:51:45 +0100, Carlos E.R. wrote: > On 2025-03-20 23:01, Lawrence D'Oliveiro wrote: > >> But SSDs are also built on flash memory technology; do you disable >> journalling on those as well? > > No, they have wear levelling, and an expected lifetime with normal usage > patterns that is quite long. Fun fact: SSDs at a low level resemble what’s called a “log-structured” filesystem. This is what happens when you have a filesystem that is all journal, getting rid of the conventional filesystem part altogether.