Hi Anton
Need urgent help
I am using San Disc 16 GB Micro SHDC and recently it went berzerk and i couldn’t write or delete anything from it. I ran Pocket Professional and it read - FAT Tables mismatch. i then downloaded demo version of Scan Disk and checked for Disk errors….
as Guessed, it said FAT Tables mismatch and gave option to correct it. I checked 1st option….i think keeping Work FAT tables as master…..ne ways, i started this yesterday night at 9 pm and it has completed only 30% till now (16 hrs). It says time left is “1 day 1 hrs”. It has synchronized 1210 sectors out of total of 3797 sectors.
My question is -
1. Is it normal to take such a long time to correct FAT tables.
2. Can i stop it and resume again later and it will start from Sector 1211. Reason is, i will rather run it every night and stop it in the morning, so as to use phone for normal operations in the morning and run Scan Disk in the night
3. Is their any desktop application, which can do it much faster.
4. What all should i do with the Memory Card after synchronizing - format, fragment, defragment etc to ensure smooth running henceforth

sorry for a longish post, but i am too confused and concerned for loosing 16 GB of data and memory card

~
Sumit

Sumit Jain - 11 July 2009 12:55 AM

Hi Anton
Need urgent help
I am using San Disc 16 GB Micro SHDC and recently it went berzerk and i couldn’t write or delete anything from it. I ran Pocket Professional and it read - FAT Tables mismatch. i then downloaded demo version of Scan Disk and checked for Disk errors….
as Guessed, it said FAT Tables mismatch and gave option to correct it. I checked 1st option….i think keeping Work FAT tables as master…..ne ways, i started this yesterday night at 9 pm and it has completed only 30% till now (16 hrs). It says time left is “1 day 1 hrs”. It has synchronized 1210 sectors out of total of 3797 sectors.
My question is -
1. Is it normal to take such a long time to correct FAT tables.
2. Can i stop it and resume again later and it will start from Sector 1211. Reason is, i will rather run it every night and stop it in the morning, so as to use phone for normal operations in the morning and run Scan Disk in the night
3. Is their any desktop application, which can do it much faster.
4. What all should i do with the Memory Card after synchronizing - format, fragment, defragment etc to ensure smooth running henceforth

sorry for a longish post, but i am too confused and concerned for loosing 16 GB of data and memory card

~
Sumit

Hi Sumit Jane,
It is definitely not normal. 3797 sectors is approximately 2MB of data that needs to be read and then rewritten to the failed FAT table. Data is processed sector by sector and that could slow things a bit but 1 day?! Has this card experienced slowdown issues or failures before? Sounds like a hardware problem but could be anything else. Under no circumstances should you stop the FAT synchronization or the data on the card will be lost. Please allow the sync to finish.

After you sync the FAT tables run ScanDisk again to make sure there are no other issues left. Then you can defragment the card. I don’t think formatting is needed unless you wish to change the cluster size. I would recommend formatting with FAT32 and a large cluster size like 2K, 4K, 8K or even 16K or 32K. That will align clusters with flash blocks and will significantly improve write performance.