Re: Periodic refresh (or rwrite?) of data on an SSD (was: Re: Recommended SSDs and 4-bay internal dock)

2023-01-14 Thread Jeremy Nicoll
On Sat, 14 Jan 2023, at 15:49, Dan Ritter wrote: > Let's separate the problem into three cases: > > - I recently deleted some files, I want them back. (Same as "I > recently changed some files, I want the old versions.") > > - I have lost a filesystem for some reason, I want it restored. > > - I n

Re: Periodic refresh (or rwrite?) of data on an SSD (was: Re: Recommended SSDs and 4-bay internal dock)

2023-01-14 Thread Dan Ritter
Jeremy Nicoll wrote: > On Fri, 13 Jan 2023, at 15:33, rhkra...@gmail.com wrote: > > The whole issue makes me wonder if, say, I should plan on having several > SSDs for each set of backup data (I mean separately from the common- > sense approach of having more than one copy of anything anyway).

Re: Periodic refresh (or rwrite?) of data on an SSD (was: Re: Recommended SSDs and 4-bay internal dock)

2023-01-14 Thread Jeremy Nicoll
On Fri, 13 Jan 2023, at 15:33, rhkra...@gmail.com wrote: > I've read some of that article, or, I guess, really the abstract and the > section labeled "Content" on that page: > > https://www.ibm.com/support/pages/potential-ssd-data-loss-after-extended-shutdown Is there a longer article? I have t

Re: Periodic refresh (or rwrite?) of data on an SSD (was: Re: Recommended SSDs and 4-bay internal dock)

2023-01-13 Thread Linux-Fan
rhkra...@gmail.com writes: On Wednesday, January 11, 2023 12:20:05 PM Linux-Fan wrote: > > Or does one need to read every byte, allocated or not? > > AFAIK one needs to _power_ the device every once in a while and keep power > connected for some time. Then, the controller can dos all the necessa

Periodic refresh (or rwrite?) of data on an SSD (was: Re: Recommended SSDs and 4-bay internal dock)

2023-01-13 Thread rhkramer
On Wednesday, January 11, 2023 12:20:05 PM Linux-Fan wrote: > > Or does one need to read every byte, allocated or not? > > AFAIK one needs to _power_ the device every once in a while and keep power > connected for some time. Then, the controller can dos all the necessary > actions in the backgroun