Intel 530 SSD - TRIM settings

Intel 530 SSD - TRIM settings

Mesajde strike_gabriel » 16 Feb 2015, 14:13

http://www.auslogics.com/en/articles/ss ... rformance/

Make sure TRIM support is enabled

You probably know that when you delete files, they don’t get deleted immediately. The files stay where they are, but their index is changed so that the space they occupy is marked as free. When you write new files to the disk, the whole block of data gets scrubbed for the new files to be saved. This technology works well for HDDs. But SSDs store and overwrite data in a different way. Therefore, it’s best for the SSD to use TRIM command and scrub deleted files rather than perform an entire block erase when new data is written to the disk. TRIM command allows your operating system to inform your SSD drive which blocks of data are not in use anymore and can be wiped. Basically, TRIM helps to avoid write performance degradation thanks to the way it handles deletes and writes.

Windows 7 supports TRIM out of the box, but it’s still good to make sure TRIM support is enabled. Here is how you can do it:
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Re: Intel 530 SSD - TRIM settings

Mesajde strike_gabriel » 16 Feb 2015, 14:20

Launch the elevated command prompt by clicking on Start, typing cmd . exe in the Search box and pressing Ctrl+Shift+Enter"
In the command prompt window, type

fsutil behavior query disabledeletenotify

DisableDeleteNotify = 0 means that TRIM is enabled

and DisableDeleteNotify = 1 means that it’s disabled.

you will see on Screen like this

C:\Windows\sytem32>
and now you will write, fsutil behavior query disabledeletenotify
plus Enter
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Re: Intel 530 SSD - TRIM settings

Mesajde strike_gabriel » 16 Feb 2015, 14:28

http://www.oo-software.com/en/docs/whit ... od_ssd.pdf

Requirements and restrictions


In principle, the O&O Defrag TRIM functionality works independently of the operating system. Unlike
most manufacturers, all standard file systems of Windows are supported: not only NTFS, but also FAT/
FAT32, and exFAT (available since Windows Vista). However, the following requirements for hardware
and drivers must be met:

The SSD supports the TRIM command. This should be given to all current drives with the latest
firmware. At the time of publication of this white paper, the following SSDs or SSD controllers
support the TRIM command:


Intel X25-M and X18-M G2 G2 (“Postville”)
SSDs with Indilinx Barefoot (e.g. OCZ Vertex)
SSDs with SandForce SF1200 or SF1500 Force (e.g. OCZ Vertex 2)
SSDs with Samsung RBB (e.g. OCZ Apex, Samsung PB22-J)
Samsung 470
SSDs with the latest controllers from Toshiba
SSDs with the latest controllers from Marvell (e.g. Crucial RealSSD C300)
And much more! If in doubt, please contact the manufacturer!
SSD is attached to a SATA controller which runs in AHCI mode
Technically speaking, TRIM commands can also be run in the IDE mode, however, they will
block all the read and write commands of the system. Without AHCI, the system will literally
stop still during the implementation of TRIM for several seconds to minutes – and this is unac-
ceptable for our customers in our view.
Drives attached to RAID or SAS controllers are not supported
SSDs in RAID arrays are not supported
SATA drivers must be able to pass on TRIM commands to SSDs (ask the manufacturer if necessary)
Currently, only the latest drivers from Intel (iaStor) and the Windows native AHCI driver from
Microsoft (msahci) can pass on TRIM commands
Conclusion
The defragmentation of SSDs leads to no improvement in their performance, and may even nega
-
tively influence their life expectancy. As a result, such defragmentation must be avoided through
the automatic detection of SSDs by the operating system or the defragmentaion software. On the
other hand, the automatic and regular execution of the TRIM command increases SSD performance
and significantly extends its life span.
O&O Defrag provides both. It is therefore the optimization tool of choice - both for traditional hard
disks, as well as for SSDs. With O&O Defrag, you get an intuitive tool that optimizes all the drives on
your system and provides a sustained increase in the overall performance of any PC or server.
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