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Format HDD or SSD too much, is it a bad thing? - Page 3

post #21 of 26
Quote:
Originally Posted by DuckieHo View Post
No.... reformating will NOT degrade performance. It will use up write cycles though.

It's not the reformat itself, it's that you tend to write a bunch of data afterwords.
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post #22 of 26
Quote:
Originally Posted by Kramy View Post
Many other SSDs will buffer the writes until there are enough to fill a whole NAND cell.
How do you know this? ...and I highly doubt this since this isn't the cause of the performance problem. The performance problem occurs when there is a dirty page in a block and the controller wants to write to that page. It is not due to individual writes within a block.

Note the writes to pages within a block: http://www.anandtech.com/show/2738/8


Quote:
Originally Posted by Kramy View Post
I don't have a huge amount of experience with SSDs. I've never even owned an Intel one. But all the 30GB Indilinx SSDs I purchased (~3) are now dead.

What OS is your HTPC running? Your SSD probably isn't brutalized like a desktop OS drive.
W7 running 24/7.


Quote:
Originally Posted by Crazy9000 View Post
It's not the reformat itself, it's that you tend to write a bunch of data afterwords.
You tend to write a bunch of data afterwards... but it really isn't that much. After installation of OS, you might write a few more GBs but it really is something like .1% life of the NAND cells.
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post #23 of 26
Quote:
Originally Posted by DuckieHo View Post
How do you know this? ...and I highly doubt this since this isn't the cause of the performance problem. The performance problem occurs when there is a dirty page in a block and the controller wants to write to that page. It is not due to individual writes within a block.
Press releases. Some SSDs added capacitors to the PCBs to ensure there was no data loss from buffering writes.

Quote:
Originally Posted by DuckieHo View Post
Note the writes to pages within a block: http://www.anandtech.com/show/2738/8
Oh oh! Apparently I was wrong about how NAND writes work. I didn't realize empty parts of a cell could be written without erasing the whole cell.

Even so, with large 128KiB-256KiB blocks "write amplification" is still a big issue.
     
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post #24 of 26
Something like the 128GB+ M4 has a 72 TB write life rated by Crucial.
Therefore, you could put on a 16 GB Windows installation 4608 times, for argument's sake.
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post #25 of 26
Or just break the habit of reinstalling windows? Reformatting/reinstalling windows isn't necessary every few months. Most of the time when people "repair" a pc by just formatting the HD/reinstalling the OS, it is completely unnecessary.
post #26 of 26
Quote:
Originally Posted by Kramy View Post
Press releases. Some SSDs added capacitors to the PCBs to ensure there was no data loss from buffering writes.
That was for controllers that used DRAM cache. This was to buffer writes of working sets. HDDs use DRAM for the same thing. Where does it say the controller waits to concatenate writes together? What's the purpose?


Quote:
Originally Posted by Kramy View Post
Even so, with large 128KiB-256KiB blocks "write amplification" is still a big issue.
Not really since page sizes are 4 kilobytes.
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