Let's say I had a file server running from a complact flash card.
After an year I had errors, so I did a fsck, I found lots of errors, I've fixed but then the CF seemed unreliable (more errors appeared after every fsck).
So my question is: If I have a CF on da0 and I
after that it is possible somehow to check if the card is still reliable?
What should I use? Should I newfs the CF and then fsck it?
It is possible to know what parts of CF are burned?
I think some parts are bad on some of my CFs, at beginning. Is there such thing as beginning of a CF? On a hard drive If I destroy boot sector the hard will not boot. If I destroy more at beginning of hard drive I will not be able to properly format (this might be valid for older hard drives). So how things are with CF?
If I use a small FreeBSD written at first 100 MB of a 4 GB flash card and I rewrote those first 100MB every time until that area is burned, what will happen next? Will the CF allocate/use automaticaly the next 100MB ? I will still be able to boot?
CF and SD manufacturers advice us not to delete single files from a CF/SD but to wait to fill it up and then format it (for example when we use a SD on a digital camera). That way SD/CF will last longer?
Tell me more about your experience with CF/SD on FreeBSD. (I've used CF for partitions mounted rw with noatime).
thank you and best regards
After an year I had errors, so I did a fsck, I found lots of errors, I've fixed but then the CF seemed unreliable (more errors appeared after every fsck).
So my question is: If I have a CF on da0 and I
dd if=/dev/zero of=/dev/da0after that it is possible somehow to check if the card is still reliable?
What should I use? Should I newfs the CF and then fsck it?
It is possible to know what parts of CF are burned?
I think some parts are bad on some of my CFs, at beginning. Is there such thing as beginning of a CF? On a hard drive If I destroy boot sector the hard will not boot. If I destroy more at beginning of hard drive I will not be able to properly format (this might be valid for older hard drives). So how things are with CF?
If I use a small FreeBSD written at first 100 MB of a 4 GB flash card and I rewrote those first 100MB every time until that area is burned, what will happen next? Will the CF allocate/use automaticaly the next 100MB ? I will still be able to boot?
CF and SD manufacturers advice us not to delete single files from a CF/SD but to wait to fill it up and then format it (for example when we use a SD on a digital camera). That way SD/CF will last longer?
Tell me more about your experience with CF/SD on FreeBSD. (I've used CF for partitions mounted rw with noatime).
thank you and best regards
