by IBM » Fri Nov 20, 2009 5:20 pm
In Windows 7, Microsoft unveils substantial increases in read and write speed of SSDs. Windows 7 will partition the Solid State Disk drives to reduce the duplicate read-write cycles. When Win 7 detects a Solid State Disk drive, it will automatically turn off defragmentation because it can reduce the lifespan of SSD. Read times are often boosted when drives are defragmented, but since flash memory already has a high read rate and slow write rate, defragment is not necessary for SSDs.