Intel SSD 530 NAND Write Problem

[fZhan14]

Hello, everyone:

I bought an Intel SSD 530 120G for my laptop several days ago. It worked well with the OS Win8.1 Pro x64.

When I paid attention to the NAND writes, something make me confused.

The situation is as follow:

The SSD with the OS is the first(primary) Disk, and the HDD is the second one. I have moved the cache of IE, chrome and Firefox to the Hard Drive using IE setting or mklink command, and verified it correctly. With the explorer working, the written data stream from cache is produced in the HDD partition theoretically, also I have got this conclusion through the System's Resource Monitor and the Diskmon from Microsoft website. When I cached several Movies embedded in any explorer without other operation separately, there are lots of written data traffic produced in the HDD partition, and just little data wrote in system disk(SSD), it's no doubt. Finally, each test(using one kind of explorer) improved less than 200Mb in Total Host Writes which is normal for system operating, but this process also consumed about 3Gb SSD's Total NAND writes in total in the CrystalDiskInfo 6.0.1. Also I have got the same result with the newly Intel SSD Toolbox, AIDA64 3.20 and CrystalDiskInfo 6.0.1. In fact, this written data traffic produced by explorer's cache in HDD is calculated into the SSD's total NAND writes.

Actually I'm not care of the SSD's wear, and I'm sure it couldn't reach the limited lifespan with normal usage until next generation product arrives. This accidental discovery confused me now, and the result above make me suspect the theory, Putting IE/Chrome or System cache into other medium/drive saving your SSD's wear.

Q:Here, I want to know what makes this strange condition happen, the drivers, system's bug, bad support for old mainboard, the system's setting&config or the special system log?

Testing condition:

Thinkpad R400(GM45 motherboard)/P8700/8Gb RAM/Intel 530 SSD+Hitachi 7k500/Intel 5300 AGN/Win 8.1 Pro X64 with the Win 8.1's Default config and drivers, except trunning the service Superfetch off mannually.

I could make sure the location of explorer cache(IE, Chrome, Firefox) in HDD, also the written data traffic in HDD, and the vast imprived NAND writes in SSD simultaneously.

Thanks for your help.

[ARu]

I also thinking about "device sleep", but after disabling it on Link Power Management and and disabling on Power Options, huge NAND writes it is certainly exists

[ASeva]

yeah its not help fix this problem

[ARu]

let's wait for updates from Intel is how fast they can fix this, if you will have any solution please write here as well

[ASeva]

i testing tonight device sleep timing.

intel530 have not bad timing but still erase nand

[JChil2]

I did a test today using PrimoCache. I set the deferred write to "infinite". No writes went to disk as they were all cached into memory.

"Total Host Writes" increased by 1 GB an hour while the "Total LBA's Written" were 0 over a period of around 6 hours.

I then flushed the cache and rebooted. The Total Nand Writes" did not increase when I flushed the cache (approx. .7GB) and did not change after reboot.

time 8:43

Total LBA's Written 0

Total Nand Writes 3,183

time 10:43

Total LBA's Written 0

Total Nand Writes 3,185

time 10:52

Total LBA's Written 0

Total Nand Writes 3,185

time 11:52

Total LBA's Written 0

Total Nand Writes 3,186

time 12:40

Total Nand Writes 3,187

Total LBA's Written 0

time 2:46

Total Nand Writes 3,189

Flush Cache

Total LBA's Written .7GB

Reboot

Total Nand Writes 3,189