SD card question

Yesterday morning I accidentally pressed the wrong button on my S9, and I gave permission to the machine to rewrite my SD card. oops. I can't see too well in the morning.
Well, of course, no data showed up. So I thought.........hey........I can just use a different SD card and it will retrieve the night's data. But that didn't work either.
Can we only download each night's stats just once?

Also.....just to be absolutely sure........no matter how much I download data or "rewrite" my card.......when I take that card to the doc's office, he will still be able to see all my info for 6 months.......right?

Thanks!

Country4ever wrote:Yesterday morning I accidentally pressed the wrong button on my S9, and I gave permission to the machine to rewrite my SD card. oops. I can't see too well in the morning.
Well, of course, no data showed up. So I thought.........hey........I can just use a different SD card and it will retrieve the night's data. But that didn't work either.
Can we only download each night's stats just once?

The last seven days of high resolution wave flow data and the detailed data for the last 30 days are both written directly to the SD card. So if the SD card is wiped, the data that draws the daily graphs is lost.

365 days of summary data (usage and summary numbers for AHI and leak) are stored on board the S9 and will be written to a new SD card (or rewritten to the old one) when the blank SD card is inserted into the machine.

Also.....just to be absolutely sure........no matter how much I download data or "rewrite" my card.......when I take that card to the doc's office, he will still be able to see all my info for 6 months.......right?

Thanks!

The S9 itself overwrites the high resolution data every seven days and the detailed data every 30 days. When you take the card into the doc's office in 6 months he will see:

• all the summary data for the last 365 days (regardless of how often you rewrite the SD card)
• all detailed data (except the wave flow) for the last 30 days (provided the card was NOT rewritten in the 30 days prior to the visit)
• all the high resolution wave flow data for the last 7 days (provided the card provided the card was NOT rewritten in the 7 days prior to the visit)

It's also worth pointing out that if the card is NOT in the S9 when you are using it, the detailed data and the high resolution wave flow data for the night are lost---they are recorded directly to the SD card and if the SD card is not in the machine, the data cannot be recorded.

Finally it's worth point out that for the S9 machines, if the high resolution data is not available, all Sleepy Head will show is the summary data. If the detailed data is not available, then SleepyHead may not show any data at all for that date.

Thanks Robysue.

I'm sorry I am having trouble with this.
So are you saying that after I rewrote the SD card, and then put in a new card, the data for the night before should have shown up? Well, it didn't.
What might that mean?
Thanks!

Country4ever wrote:Thanks Robysue.

I'm sorry I am having trouble with this.
So are you saying that after I rewrote the SD card, and then put in a new card, the data for the night before should have shown up? Well, it didn't.
What might that mean?
Thanks!

Which data and where are you looking for it?

In SleepyHead? All the detailed data is LOST, and hence NOTHING will show up in SleepyHead because SH needs that detailed data to show anything at all for the S9 machines. You'll get some kind of messsage from SH saying there is no data for the night.

In ResScan? The summary data---the overnight AHI, the median and 95% leak rates, the median and 95% pressure levels (if you are using Auto), and the usage data will show up in ResScan. So you'll get "bar graph" data for the night on the summary charts in ResScan, but you won't get any detailed data graphs for the individual night.

On the S9's LCD? Everything that was there before the re-write should still be there on the LCD---provided you check the machine's LCD before noon---the daily LCD data is reset to 0 at noon each day.

When you erase the SD card all the

Country4ever wrote:after I rewrote the SD card, and then put in a new card, the data for the night before should have shown up? Well, it didn't.

Erasing the SD card..this happens
all prior detailed data that might be on there goes away.
When you put the blank SD Card back in the machine the S9 will write to that blank SD card what it has stored (Robysue explained what it stores) back to the SD card.
The only part of the prior night's worth of data that will be thus available is the hours of use and AHI average and a bit of other statistics. SleepHead needs those other missing data files to show anything...so to SleepyHead it appears as though the machine hasn't been used.

Now Resscan doesn't happen to need all those various detailed data files to show summary usage statistics (so your DME who uses ResScan still can see that you are using the machine) so all is not lost but the detailed stuff is lost.

I am wondering why you are getting the prompt to erase the SD card. That doesn't happen unless something changed something on the SD card so that the S9 won't accept it.

If the SD card is not in the S9 all night...you won't have those detailed files put on the SD card...in SleepyHead that means you will likely have a big goose egg for usage.
When you erased the card and then put it back in the machine...no way for it to put those detailed files back on the SD card because they were there (if the SD card was in the S9 but you erased the card) or if the SD card had been left out of the machine. The machine doesn't store those files.
What it does store on the machine to put onto any SD card is enough to satisfy insurance requirements.
Unfortunately what it stores on the machine isn't enough to get SleepyHead to show anything.

You don't have ResScan do you? It will show a brief statistics page for usage for the night's that SleepyHead doesn't show anything.

But when you erase the card and then go put the SD card back into the machine..it can't pick up those detailed data files from the night before because they aren't on the S9. It can only start putting the detailed files on to the machine tonight forward...assuming you aren't getting that "Do you want to erase" message again and that shouldn't be happening often at all.
I have seen it only once in nearly 2 years of S9 use and that was not long ago when I had messed with the SD card doing something.

Pugsy wrote: I am wondering why you are getting the prompt to erase the SD card. That doesn't happen unless something changed something on the SD card so that the S9 won't accept it.

The OP erased the card by mistake when she wasn't fully awake according to the original post:

Country4ever wrote:Yesterday morning I accidentally pressed the wrong button on my S9, and I gave permission to the machine to rewrite my SD card. oops. I can't see too well in the morning.

robysue wrote:The OP erased the card by mistake when she wasn't fully awake according to the original post:

Yeah...but why was that even a choice made available to her in the first place? It isn't something that is offered every time the SD card gets put in that slot. I have seen it only once myself.
Something changed on the SD card for the S9 to offer that choice.

That choice only pops up when a SD card gets inserted and the S9 doesn't like it.
Why would someone be inserting a SD card while not fully awake...the SD card should have been in the machine all night.

Are you leaving the SD card in the machine at all times except for data retrieval???
It HAS to be in the machine all night.
You can't treat it like you did the S8 smart card and just pop the Smart card in and have it write to the Smart Card and get all the detailed stuff.

SleepyHead...won't see a thing at all if you don't leave the SD card in the machine.
ResScan will see things that SleepyHead won't see but you still would have extremely limited data...

What are you doing to get the prompt to erase the SD card pop up? That simply doesn't happen unless the S9 doesn't like what it sees on the SD card.
What is the operating system on your computer?
Are you using the lock to change to "read only" mode on the SD card?....if not I would suggest you do that.

Pugsy wrote:

robysue wrote:The OP erased the card by mistake when she wasn't fully awake according to the original post:

Yeah...but why was that even a choice made available to her in the first place? It isn't something that is offered every time the SD card gets put in that slot. I have seen it only once myself.
Something changed on the SD card for the S9 to offer that choice.

I wonder if the OP got into the clinical configuration menu by mistake and selected "Erase Data". That would erase the compliance data on the machine's internal memory as well as the SD card's data according to the S9 Clinical menu. That would also explain a sudden disappearance of all data even from the machine's LCD.

robysue wrote:I wonder if the OP got into the clinical configuration menu by mistake and selected "Erase Data". That would erase the compliance data on the machine's internal memory as well as the SD card's data according to the S9 Clinical menu. That would also explain a sudden disappearance of all data even from the machine's LCD

I wondered that too...but man I just don't see how someone would get there and not be fully awake to find it.
Heck, I have to stop and think how to get there every time I want to think about where that function is. No way could I get there half awake.

She had a problem not long ago with getting the "invalid card" message...so my question is why the invalid card do you want to erase message..is even popping up and what was done half asleep.
At the most half asleep all a person should be doing is removing the SD card to take it to the computer....not inserting it.

Okay..........I WAS fully awake, but have some vision problems when I first get up. Plus, I was sitting in a chair, leaning over to read what was on the screen, and I mis-read things.
Yes, I know the card HAS to be in the machine while I'm asleep to get sleepyhead info. I'm having major mentation problems and it's frustrating as hell to not always understand things.....especially computer things.
So.........I woke up, got up, sat in my chair, leaned over to look at the data on my S9 machine, and sometimes I forget what combo of buttons to press to just get info. I have to do 2 different combos, in order to get the AHI and then the Leak Rate. I may have accidentally gotten into the clinicians menu, and that's why that option to rewrite came up.

I understand why the card could no longer give Sleepyhead any info.........the card was blank.
BUT..........why wouldn't a new card put in, be able to retrieve that same info?

I understand everything else you guys have said........except that. It appears that one can download the data for sleepyhead.....just once and no more......even if it was 10 minutes later, and with a different SD card.
If I sound frustrated, it's because of me, and not you guys. I appreciate your patience, for sure!

Country4ever wrote: I understand why the card could no longer give Sleepyhead any info.........the card was blank.
BUT..........why wouldn't a new card put in, be able to retrieve that same info?

The machine will write what it stores in its memory to the blank SD card...but SleepyHead can't calculation anything without all the data files being present and the S9 doesn't store anything but summary usage stuff to be put on the SD card.
SleepyHead can't show anything because all the files it needs to show anything aren't on the SD card.
ResScan would show the summary usage though. So it's not so much it isn't there...SleepyHead just can't use what is on the card.

Now if you did stumble into the clinician's menu area on the S9...and told it to erase the machine...then everything that the machine had stored (which is only the summary data) will be gone...so nothing at all would be available to be written onto a blank SD card and in that case...even the summary stuff is gone and even ResScan would have a problem.
If you did this....and your SD card is blank...your DME will also see no usage because when the S9 erases the data...the slate is wiped totally clean.

So in short...when the S9 erases a SD card...that's not the same as erasing the therapy hours/data that gets done in the clinical set up menu.
If the SD card gets erased...we still have summary usage available but SleepyHead won't see it.
If the S9 itself gets erased via the clinical setup menu...all past usage is gone....and if the SD card is also blank..double whammy.

Okay..............I think I'm getting close to understanding.
Are you saying that the first time (before I messed up), all the data that sleepyhead needed was the on the SD card. But since it was cleared......it is all gone from the card........but the stuff the Doc looks at is still on the cpap machine's computer (and would only be erased if I chose the "erase all data" file? ) But what I'm still having trouble with is that if the machine gave up the info once to the SD card (that sleepyhead uses), why wouldn't it keep it? Is the stuff that sleepyhead uses (and I'm assuming the Rescan uses) only given to a card once?
I'm really sorry I'm having trouble with this.

Country4ever wrote:the stuff the Doc looks at is still on the cpap machine's computer (and would only be erased if I chose the "erase all data" file? )

Unless you go into the clinical menu setup area on the machine itself...special area...the data on the machine that it saves is untouched.

When you get the "invalid card...do you want to erase" message when you insert the SD card that is for the SD card only...doesn't do a thing to the data on the machine but remember the data stored on the machine is limited.

SleepHead needs everything...and what is stored on the machine isn't enough for SleepyHead to do anything at all.
ResScan can give a summary report even if the detailed files are absent because it doesn't need everything to do just a little.

Country4ever wrote:But what I'm still having trouble with is that if the machine gave up the info once to the SD card (that sleepyhead uses), why wouldn't it keep it? Is the stuff that sleepyhead uses (and I'm assuming the Rescan uses) only given to a card once?

It would be kept on the SD card if you didn't erase it (assuming the card was in the machine all night).
The problem is not that the machine is only writing to the card once and your download is doing anything with that data on the SD card making it go away..it isn't.

The problem is...SleepyHead can't read anything if the machine hasn't written all the files to the SD card and when you erased the card and put it back in the machine...what was stored on the machine wasn't enough for SH to use.
so it looks like ...from SH perspective...nothing is on the card but unless the entire machine got erased (only can be done from within the clinical setup menu) prior usage is there and is on the SD card but SleepyHead is clueless.

So I don't know what you have done...did you erase the machine via the clinical setup menu? Or did you just erase the SD card? We can't figure out what you did using SleepyHead. Of that I am certain because once that SD card gets cleaned up or a new card is used...SleepyHead is useless because it absolute will show no usage if the full data files aren't put on the SD card and the S9 only does those files when the SD card is in the machine. Any days of use that don't have those files...SH will show no usage..period.
ResScan will show the usage though.

Okay........let me put it this way. And maybe my thinking is wrong.

The S9 will take information during the night on its computer and if an SD card is in there, it downloads everything. But......sleepyhead can only extract a certain type of info from that card, which is what we see with the Sleepyhead software. This information had to be on the cpap machine's computer, or it wouldn't have downloaded it, right?

So......if the data was on the card,then I mistakenly erased it, why can't another card still download that data? Isn't it still in the machine??

I know.........this is getting silly..........but I just don't get it!!

It would be different if all the data was ONLY on the SD card.........but it's in the machine too, right?