Gentlemen,
Aram is right, the number of red/write cycles on a SD device is long enough. It
will outlast 5 generations of bigger/quicker cards..
In fact, the operation of reformating is just the rewriting of a new FAT (File
access table) onto the begining of space available. The rest of the mapped
space is left untouched.
If a cell of the SD device weakens, it is declared as "unavailable" and the
system will skip it and it goes to another free one.
This mecanism was really important back in the days when vibrations would lead
to the reading/writing head accidentally "lands" onto the surfaceof a spinning
disk.
But a SD card has virtually no mechanical interface, if it dies, it will be
probably be the fault of the camera/storage interface circuit. And as it is
made of transistors, it will last a while.
some 10 years ago, I had one USB stick (same technology as SD card) that died.
But I used it for two years as my main Ubuntu drive and obviously it had
reached the write cycle limitation in some special areas (typically the /tmp ).
But since, the devices have improved.
Reformat as much as you want Peter, you'll get tired of it before the card dies
🙂
#-----------------------------------
From : Xavier F. BILLE
mail : hot_billexf@xxxxxxxxxxx<mailto:hot_billexf@xxxxxxxxxxx>
Maisons Alfort - France
________________________________
From: leicareflex-bounce@xxxxxxxxxxxxx <leicareflex-bounce@xxxxxxxxxxxxx> on
behalf of Aram Langhans <leica_r8@xxxxxxxxxxx>
Sent: Monday, February 10, 2020 1:42 AM
To: leicareflex@xxxxxxxxxxxxx <leicareflex@xxxxxxxxxxxxx>
Subject: [LRflex] Re: Does Re-formating An SD card Between Two Different
Cameras Degrade The Card
Hi Peter. I am not sure the answers you have received really answer your
question. All SSD devices have a limited write cycle life span. Every time
you write to one of them, it shortens the lifespan. Not when you read from
them. So, yes, formatting and indeed using the card shortens its lifespan,
but that lifespan is considerable, so I don't think you will ever see the
end of the lifespan effected by the number of write/format cycles you
subject it to. It will probably outlive you by a generation or so. Of
course, there are other ways it can fail, both mechanical and
electromagnetic abuse. They are rather flimsy little buggers, aren't they?
I am always afraid I will snap one in two if I push it too hard into my
laptop. Or if I forget it is in there as it sticks out the side a bit and
could easily catch on something and possibly snap.
I do agree that if you format it in the camera you are using, you will have
less problems than trying to format it on a computer.
So, shoot away, format away, and have fun.
-----Original Message-----
From: Peter Stevens (Redacted sender "fritzj3" for DMARC)
Sent: Sunday, February 09, 2020 11:56 AM
To: Leicareflex Photo Group
Subject: [LRflex] Does Re-formating An SD card Between Two Different Cameras
Degrade The Card
Hi. Technical question for y’all. Can a person use one specific individual
SD card in multiple camera brands? If you have an SD card being used in one
camera body, say an Olympus, and you take that card out of the Oly and
install it in say a Panasonic and re-format in the Panasonic, does the card
suffer any degradation in performance or capacity? Can you then go back to
the Oly and re-format in the Oly without harm? Thanks.
Best regards,
Peter S.------
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