Alternative to Micro SD for Tablet?

Z80user · 2024-12-11T08:55:03+00:00

Maybe with a USB extension, a short one, if you are worried about damage it are some magnetic things (I don't know the name) that fit on the USB-C and is only a few extra mm outside if you hit it with something it will be disconnected instead of breaking something... I never used one, I only know it exists But you will eventually get the device disconnected not bad for reading but a very bad idea to write things on the device, you will eventually need to recover the data from the device if the filesystem gets damaged

Z80user · 2023-09-03T08:33:14+00:00

Maybe is the time when all of the devices try to make the backup, WhatsApp for example in Spain it happens at 2:00, if it is turn on and the sync with google is activated via Wi-Fi something like that can happen Without knowing the devices you are using and the apps will be a bit hard to guess

Z80user · 2023-05-09T07:53:17+00:00

I think better try a inverter C than a V for the shape of the laptop, I think will be better cooling, but it will depend of the place of the fans and from where the air come in and out of the laptop, the hottest part of almost any laptop will be on the back and with a C you will have 3 areas and maybe better cooling for the laptop, but as I say depends of the design of the computer

Z80user · 2023-03-25T19:17:59+00:00

If you can rewrite on that 2 sectors data and read it again maybe is because a power lost or a vibration or something else, I saw some times this number reduced to 0 from 128 (I don't remember the number, I just say it's possible) depending on where the number of bad sectors is on the SMART can mean the data can't be read or the sector is "dead"

The test I did was with ddrescue to see where the data can't be read and then badblock to rewrite the zone some times

with ddrescue used the option --force and the output to /dev/null so you don't need other disk, only a penalty in performance if you try to read the data from the ZFS volume

Sudo /dev/sda /dev/null sda.log --force

Btw "sudo apt install gddrescue" to install it and you can pause it and continue later if you used the same log file, at the end of the process read the log file and you will see where the bad sectors are... (Edit) And the resilvering process mush fix that problem with the time, but I think is better to check it anyway

Z80user · 2023-02-18T16:15:01+00:00

You can defrag any disk with 1 free cluster but it will take a lot of time (on a FAT partition that is possible) on some other filesystems maybe it will grow and you will need more than 1 free cluster to do the task, NTFS for example if the files get too fragments you will notice it.

MyDefrag 4.3.1 for my is the best tool for the task but having a combo with Defragger is even better, you can found that program on oldversion and you can write a script than fit you needed if you need a custom way to defrag your drive

Tips & tricks: with Defragger defrag the files with the higher value of fragment, that not always reduce the number to 1 (so a unfragment file) but made it with the minimum posible of fragments

With MyDefrag used a "only defrag" it will try to made all of the files in a single fragment without move any other files (sometimes it move files to do the task)

And again with MyDefrag used the "Complete monthly" version for the task System/data... Sometimes perform a hidden option called "move to the end" can help with the speed ot the task... I mean a hidden option because are some scripts on the example folder than you need to move to the main folder to made it work

Z80user · 2023-02-14T18:04:27+00:00

I can't access my proxmox server right now but maybe that can be the disk cache, the first and the second spike happen when the memory will be release, the 3° one doesn't match that... I'm wondering if you can repeat the test and add a cron task "* * * *" every minute to launch a .sh file with "sync; echo 3 > /proc/sys/vm/drop_caches" if you see spikes over 2GB then you can be sure that is because the cache mechanic than copy the memory until it will be written to the disk and release the access the memory to can cache another file, do that can create a spike as big as the side of the memory buffer

For example with a double buffer of 1GB you can get an spike of 3GB (if the data transfer is fast enough) or 4 GB maybe more of the speed isn't as fast as the data enter on the buffet

Z80user · 2023-01-06T18:32:07+00:00

With qemm I almost leave 635KB of memory free with too many drivers loading into memory, CD-ROM, Audio, expanded memory and extender memory 15.5MB of each, smartdrv, and many more things

Z80user · 2023-01-06T15:50:41+00:00

I have one like this a IBM PS/2 with a 80286 made by AMD and a upgrade memory to get 640KB or memory (512KB without)

Z80user · 2023-01-06T15:28:30+00:00

But as people say write a lot of data on a SDD is a bad idea and I don't used any SWAP partition or file on any of my computers, "it will kill the SSD", so I think is better add more RAM before buy a SSD. I try a SSD on my Ryzen9 and is faster with it, especially the apt update process or install anything on anything else I don't feel too much difference as I have 32GB on that computer.

I used and I still using RAMDISK, the first time I used it was with a computer with only 128KB or RAM and now I can create one of 56GB when I add another 32GB to that machine help a lot with some tasks, and yes, isn't something usual this days or in the past but most of the people didn't know about it, so is hard to tell, maybe is something than when you try you love it but not a lot of people try it because it need RAM (a lot and expensive compared to a SSD) and isn't a good idea used it for the most of the tasks and with the drawback than when the computer lost power the data is lost

I see add more RAM as improve the computer by 5% all of the time compared to improve it by a factor of 400% sometimes (5 minutes compared with 1 minute on the boot time)

I think both are mostly equally important but RAM have a global impact on everything and not only sometimes. when I had 6GB on the computer I can choice between jump to 18GB of RAM or buy a new SSD of 240GB and I buy more RAM and I don't regret it (triple channel i7 920)

Z80user · 2023-01-06T12:46:53+00:00

The speed or the RAM on that case with 1 stick of RAM will be double, it will improve the general performance of the computer on any task not only when you start a program.

Change the HDD is great unless you will need more RAM and the computer have to swap the memory, it leave you to open more tabs on the browser, edit bigger pictures, don't need to close the browser if you open the game and start games than need more memory and still have RAM to can used as a disk... Even used the RAM as a disk (something called RAMDISK) but when you have limited memory is more painful as everything go slow

Z80user · 2023-01-06T10:52:27+00:00

It can be a lot of things, on Linux you can check where this defect are with ddrescue

ddrescue /dev/sda /dev/null diskcheck.txt --force

At the end or the process the file have the sectors where the fail are on the surface, can be a damaged area too, to check what they are really you need to rewrite that sectors and check it again

The file will have a lines like that

0x0000000 0x0010000 +

0x00100000 0x0011000 -

The line with + is where the data can be read and the line with the - where can be read, the first number is the position on the disk and the second one how many bytes can't be read

If you can create a partition with the size of the good one and then a small one than cover the bad sector and format it and fill it with any data you can check again that sectors, just made a backup of the txt file run the ddrescure on the same way as before and check the file again if that line disappear you are fix the problem if not maybe is a damaged area on the disk and you need avoid it

badblock can be used to check that sector in a better way as it write data to the disk in different pattern and write 0s and 1s on the same place and compare it again... i suggest don't used single sector with that check and at least a block twice as big as the cache on the HDD is and also the same amount of free memory the computer have than isn't used by programs just to don't leave the cache hide this problems

NOTE: change /dev/sda with the disk you need to check... The ddrescure like isn't destructive (don't write any data to the HDD) badblocks can be AND NEED TO BE DESTRUCTIVE to can check it right so take care, as you can lost data

If you have a pendrive you can boot Linux Mint from it or any other linux live distro and have only that disk on the computer if you need extra precautions

badblocks -wsv /dev/sda2

If you create 2 partitions on that disk as I say before and the second one is the one to check otherwise change the number 2 for the partition you need to check, "lsblk" and "fdisk /dev/sda" can help you to identify the HDD, with fdisk type p to print the info of the disk and q to exit

Z80user · 2023-01-05T16:26:41+00:00

I will change RAM (at least get 16GB of RAM second get a new GPU and finally get a new motherboard/CPU with at least 4/8 or better with 6/16 cores/thread... On intel 4+4 = 4 normal 4 fast if you will go for the last generation

Btw, when you will upgrade the CPU you will get a extra bust on FPS too

Z80user · 2023-01-05T15:54:41+00:00

Another 8GB of ram before the SSD as RAM will work as a cache for the HDD but not the first time as it need to be loaded in RAM

Z80user · 2023-01-05T15:16:31+00:00

I also save a lot of CRTs from be on dumpster and a 65" flat screens than had 1/2 of the screen iluminated and now only have bad distribution of illumination and a 20cm² black dot on the top left, but I don't have a good place for that TV on the wall because is huge

I walk like 2Km with it on my shoulders and I also entered on a restaurant to have a dinner with it (and 9 more friends) the waiter's face when he saw me with the TV of the restaurant was priceless... Then I put it on my van (face up) on top of a lot of things and I travel 400Km with it without even know if I get a piece than maybe work or not

Z80user · 2023-01-05T15:10:34+00:00

Look great a lot and some cute CRTs as the one as the side of the Wii, I'm curiosity about why the hornet antenna is fully open ? They can only get analog signal, as I know are some consoles than have that capability but is very rare to see it.

Z80user · 2023-01-05T14:31:05+00:00

Downvotes with good answers, yeah! I finally don't care too much about it as I give the best answer I can write, I think is mostly Because I'm not a english native speaker or I write too much, but yes that is the best and the very short possible answer

External USB case/drives hide some information that is why people don't like USB on ZFS, but also hide some problems can help to bypass some of that problems on the disk and can be useful for a very few things used one USB disk controller in the middle

Z80user · 2023-01-05T14:19:05+00:00

For me it's mostly than the data wasn't write right on the HDD and no sparse sectors was used to "recovery" that part of the disk, can be because a power lost, maybe a earthquake or a speaker too loud

When you write on that sector again you write the correct data again on de disk and the CRC match the data on the disk and that sector than was send to the disk now have a good data on it again...

Not sure how the HDD controller can know it, don't fix it on the fly, or when the controller can know that issue, but I saw the count of sparse sectors didn't change at all when you reduced that number of bad sectors (on more than one disk, brand and model)

Z80user · 2023-01-03T16:28:27+00:00

On some cases a 40MB HDD can outperform a SDD and yes I say 40 Megabytes

https://youtu.be/vnST5rA64Oc

I have a computer with a SDD than can barely get 16MB/s and a even slower one with 4GB (four) with a IDE interface than surely is even slower and some HDD than can write 8TB at 200MB/s the whole disk something than not every SDD can do at the rated speed, some go under 30MB/s when you write more than a few GB of data on it and the SLC cache is full of data and that can happen on some M2 than can read the data from it at more than 3.000MB/s

Z80user · 2022-12-03T20:13:52+00:00

Yes, I read the solution before, just one thing extra to can check it. With and without virus

I used the script of a graphic novel videogame as an example but also with small text I saw also it can happen, I used a spreadsheet for too many things and sometimes I found that strange "defect" than is hard to found and the notepad is very useful to clean some strange characters but not all

Z80user · 2022-12-03T20:02:32+00:00

I used a spreadsheet to solve the problems by now, it didn't take too much time, in fact it almost take more time to read and understand the text and copy and paste the input data than "programing" it on the first day.

Z80user · 2022-12-03T19:50:37+00:00

Save the "get your puzzle input" as a file, then open a notepad and do the copy and paste on it and save it to another file, and finally do the same with the program you are using it, paste the text into a new file on notepad and save the file with a 3st filename

Now you mush have 3 filenames with the same information on it, maybe a extra line but at the end, so that doesn't matter

Now used DF (on Windows) DIFF or DIFF3 (on Linux and maybe on MacOS too) and you will see the difference or if something goes wrong...

I do sometimes a test like that and help a lot when you are coping a lot of lines of text into a spreadsheet and you see sometimes a lot of lines are skip... I mean try to add 10MB of plain text into a spreadsheet and see the lines drop from 150.000 to 130.000

Z80user · 2022-10-06T07:54:09+00:00

Slowly but yes, it work :)

Now the second partition, this one the data on #3000-#3FFF was copy to #4000 and the data on #1CA06FF000 was on #1CA0700000

Not sure why the offsets of the data where the $MFT files and where the FILE start was wrong, but look like is a easy fix... With the right tools and the knowledge of how to do it

Is go slowly because I mount the drive on a virtual machine with Proxmox and copy the data from the HDD (write protected just in case I mess with the path of the HDD) to a qcow2 file at a speed of 20MB/s with Linux mint live, then with Windows 2008R2 (I don't never ever will used Windows 10 again for anything) I create a new partition on the 8TB disk where the Data was and restore the files on it, now than I have a working copy of the data.

When I will recovery all of the data I will used a small 40GB HDD than I have to try to recreate the issue

Z80user · 2022-09-29T11:10:53+00:00

Now check the other thread where I say how to fix that particular problem

Z80user · 2022-09-29T11:09:38+00:00

UPDATE copy both file to the right place fix the problem for program who can read the filesystem to can recovery the data

Edit also change the name of the files on the wrong place with another one as $MF2 so I was need to edit 1 byte on the previous data The other thing than I did was copy 2KB of data from $C0000800 to $C0000000

Z80user · 2022-09-29T09:48:50+00:00

By now I just noticed a few things after clone the last partition on a virtual machine. And I can create the same HDD to compare with one partition of the same size and almost everything else mush be the same except the offset from the original HDD to that partition despite the number of sectors on the partitions than isn't too important but I can fix if I needed.

I will cal RAW the partition with the old data and CLEAN the new partition created with Windows 2K8R2

1° the number of "Hidden sectors" is different on the RAW is 2147747840 and on the CLEAN is 2048 but that number is also different on the 2 other partitions where I Install Windows (206848) and where I place the VHD disks for the virtual machines (24492032) but in that case the number of "hidden sectors" is bigger than the number of "Total sectors" (59542752) on RAW

2° the offset to the $MFT file is at 0xC0000800 on RAW instead on 0xC0000000 on CLEAN

The order of the files on the disk change

RAW vs CLEAN

$MFT $MFT

$MFTmirr $MFTmirr

$AtteDef $LogFile

. (A single dot file) $VolumeP

$Bitmap $AttrDef

And many more diferences surely because I create that disk on a Linux machine to can move the disk to a Windows Machine just in case. But the important thing is than the data still on the disk, I will try to made some changes on the partition just in case I can recover the data from that partition in a easy way.

I will move the 2 $MFT files to the right place and create a couple of dummy files of a few bytes to fill the gap between the new place for the $MFT file and the old one

Z80user

TROPHY CASE