Path: csiph.com!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Paul Newsgroups: alt.os.linux Subject: Re: When I back-up .... Coping my Entire Internal HD to an external HD Date: Sat, 15 Mar 2025 14:57:43 -0400 Organization: A noiseless patient Spider Lines: 59 Message-ID: References: <5kv5alxctp.ln2@Telcontar.valinor> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Date: Sat, 15 Mar 2025 19:57:44 +0100 (CET) Injection-Info: dont-email.me; posting-host="b32e4e78c6414056bdb915def5502f81"; logging-data="121089"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18P4djHGHORgYYRU2mMIbazzBcZMxN7kWk=" User-Agent: Ratcatcher/2.0.0.25 (Windows/20130802) Cancel-Lock: sha1:2wEi/uR27rneArZSYKJ4ncCXSRg= In-Reply-To: Content-Language: en-US Xref: csiph.com alt.os.linux:81115 On Sat, 3/15/2025 2:22 PM, R.Wieser wrote: > Paul, > >> And that's why, if you look at the design of hot-plug >> devices, you will notice some contacts are longer than >> others and this is intended to make them "touch first" >> on insertion. > > I know, you know, and most likely others do too. > > And its the reason why you don't try to hot-plug a PATA drive. :-) > > Regards, > Rudy Wieser > > You *can* hot plug a ribbon cable drive. You need the right kind of housing with the right kind of connectors on either side, to do it. It can only be done safely, by using a housed drive, that slides into a special tray. The special tray goes to the end-connector on the IDE ribbon (jumpered Master) and the special tray stays attached to that cable all the time. The IDE housed drive, slides in or out of the tray. There is a little ceremony, during removal. This was not a popular activity at the time, and you may have a lot of trouble finding a Google image of the items in question. This article kinda hints at the detail. https://en.wikipedia.org/wiki/Parallel_ATA "Although CF can be hot-pluggable with additional design methods, by default when wired directly to an ATA interface, it is not intended to be hot-pluggable." It's the same for the PATA drive. The ribbon cable, considered by itself, is as the spec summary at the top says: General specifications Hot pluggable No But, by means of redesigning the connectors that mate between the housing that slides in and out, and the tray it rests in, it can be made hot-plug compatible. I had *absolutely no interest* in testing this, and did not buy samples of the housing as a result :-) It's like a bar bet, doing stuff like this. But a commercial interest, did sell housings to do this very thing. Even at the time these were for sale, the documentation was very poor. You could hardly tell what they were doing, at the interface level. Paul