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Trim support

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August 19, 2010 9:42:31 AM

Hello Toms need your help on setting up and maintaining Trim for my 64gb ssd. Im new to this you help would be appreciated, and be gentle as its alllll new. My os is on the ssd and I have a data 750gb hard drive

Windows 7 ultimate
Kingston ssdnow v series 64gb

More about : trim support

a b G Storage
August 19, 2010 12:31:04 PM

Windows 7 automaticaly sets up trim on your SSD.... nothing for you to do or adjust. Just make sure your BIOS is set to AHCI mode before installing your SSD.

Here is a link to help if you set up your drive in IDE mode and now want to switch to AHCI.

http://support.microsoft.com/kb/922976/en-us
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August 19, 2010 8:03:54 PM

anonymous1 said:
Windows 7 automaticaly sets up trim on your SSD.... nothing for you to do or adjust. Just make sure your BIOS is set to AHCI mode before installing your SSD.

Here is a link to help if you set up your drive in IDE mode and now want to switch to AHCI.

http://support.microsoft.com/kb/922976/en-us



So if I set up the os on the ssd from the beginning I have nothing to worry about? How can I see if it is monitoring?
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a c 99 G Storage
August 21, 2010 12:00:37 AM

Try this website: SSD Support...

In the middle of the article is a way to check if TRIM is enabled.
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August 21, 2010 8:57:25 AM

foscooter said:
Try this website: SSD Support...

In the middle of the article is a way to check if TRIM is enabled.



Thanks for that info I will check into that, and let you know
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August 22, 2010 7:22:27 AM

Thanks all i got my answer. I appreciate everyone
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August 29, 2010 4:03:48 AM

Best answer selected by miwanuma.
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a b G Storage
August 29, 2010 4:16:20 AM

A correction for that linked post on sevenforums.com: Windows will report that TRIM is enabled even if the SSD doesn't support it. If it sees a HDD with a rotational speed of 0 (ie. an SSD), TRIM gets enabled. I don't know how old that drive is or what firmware version it is running, so I'd Google around and ensure that it does in fact support TRIM.
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August 30, 2010 1:45:03 AM

randomizer said:
A correction for that linked post on sevenforums.com: Windows will report that TRIM is enabled even if the SSD doesn't support it. If it sees a HDD with a rotational speed of 0 (ie. an SSD), TRIM gets enabled. I don't know how old that drive is or what firmware version it is running, so I'd Google around and ensure that it does in fact support TRIM.



Sorry but, I am new to this where can I find out software ver. for my Kingston v-series
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a b G Storage
August 30, 2010 1:50:51 AM

Download CrystalDiskInfo (not CrystalDiskMark). It will tell you plenty of information about your SSD, including the firmware version. You'll need to look up the manufacturer's website (and perhaps forums) to find out what version first enabled TRIM.
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a c 99 G Storage
August 30, 2010 6:06:43 PM

randomizer said:
A correction for that linked post on sevenforums.com: Windows will report that TRIM is enabled even if the SSD doesn't support it. If it sees a HDD with a rotational speed of 0 (ie. an SSD), TRIM gets enabled. I don't know how old that drive is or what firmware version it is running, so I'd Google around and ensure that it does in fact support TRIM.


Thank You randomizer. That is correct. Even though my SSD's are in a RAID 0, TRIM still comes back as "enabled" even though it's unsupported for any RAID array.

Thanks for the advise on CrystalDiskInfo, too.

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September 3, 2010 12:03:32 AM

Thank you Very much for that info.
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September 3, 2010 12:17:25 AM

randomizer said:
Download CrystalDiskInfo (not CrystalDiskMark). It will tell you plenty of information about your SSD, including the firmware version. You'll need to look up the manufacturer's website (and perhaps forums) to find out what version first enabled TRIM.


If I am reading correctly this supports trim correct??



----------------------------------------------------------------------------
CrystalDiskInfo 3.7.0 (C) 2008-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/


-- Disk List ---------------------------------------------------------------
(1) KINGSTON SNV425S264GB : 64.0 GB [0-0-0, pd1]
(2) Hitachi HDS721075CLA332 : 750.1 GB [1-1-0, pd1]

----------------------------------------------------------------------------
(1) KINGSTON SNV425S264GB
----------------------------------------------------------------------------
Model : KINGSTON SNV425S264GB
Firmware : C091126a
Serial Number : 07MA10007924
Disk Size : 64.0 GB (8.4/64.0/64.0)
Buffer Size : Unknown
Queue Depth : 1
# of Sectors : 125045424
Rotation Rate : ---- (SSD)
Interface : Serial ATA
Major Version : ATA8-ACS
Minor Version : ----
Transfer Mode : SATA/300
Power On Hours : 249 hours
Power On Count : 359 count
Temparature : 38 C (100 F)
Health Status : Good
Features : S.M.A.R.T., APM, 48bit LBA, TRIM
APM Level : 0000h [OFF]
AAM Level : ----

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a b G Storage
September 3, 2010 12:28:46 AM

It appears that it does based on the information I've seen online. The "Features" section there simply checks if the firmware has the TRIM flag set to true, which means that the firmware reports that it supports TRIM, but doesn't necessarily mean it does. Isn't ambiguity great? :D 
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September 3, 2010 4:38:15 AM

lol yes it is... I will look into my kingston specs and see. Thank you!
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September 3, 2010 9:04:21 AM

Solved it does support it!!
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September 4, 2010 7:06:36 AM

randomizer said:
It appears that it does based on the information I've seen online. The "Features" section there simply checks if the firmware has the TRIM flag set to true, which means that the firmware reports that it supports TRIM, but doesn't necessarily mean it does. Isn't ambiguity great? :D 


Used crystal disk info to check the status of a couple of ssd i have. 1 ssd comes up unknown. How do i wipe this disk and start it over. I have a 120gb ssd that has 112gb avail, and a 64 with 59gb avail. (both come up unknown as my other 2 show good. I saw something called hdderase and tried to put the boot disk together, but i just cant figure it out for the life of me. suggestions
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a b G Storage
September 4, 2010 9:37:46 AM

I have not seen this posted anywhere else but I can't think of any reason why it would not work. That said, I'm pulling this out of the air nonetheless. Connect the drive to another PC running Windows and quick format it just as you would any other drive. The download and run this program: http://www.mediafire.com/file/54zcb976doxnn5l/FreeSpace...

Ensure that the correct SSD is selected in the drop-down, check the box that says "with FF" (<--- don't forget this step) and then run the cleaner. The progress bar "finishes" multiple times for some reason. This program will write a file to the drive of expanding size until the entire capacity is filled before deleting it again. The "with FF" option ensures that the program writes logical 1's to the drive instead of 0's, which is effectively the same as erasing used blocks (since 1 represents the reset state of a cell), while 0's is what a standard full format or a run with HDDErase would use, which causes excess writes to the drive and requires that all blocks then be reset.
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September 4, 2010 7:46:43 PM

Will give that a try thanks so much as I am new to the ssd thing...
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September 5, 2010 8:08:42 AM

randomizer said:
I have not seen this posted anywhere else but I can't think of any reason why it would not work. That said, I'm pulling this out of the air nonetheless. Connect the drive to another PC running Windows and quick format it just as you would any other drive. The download and run this program: http://www.mediafire.com/file/54zcb976doxnn5l/FreeSpace...

Ensure that the correct SSD is selected in the drop-down, check the box that says "with FF" (<--- don't forget this step) and then run the cleaner. The progress bar "finishes" multiple times for some reason. This program will write a file to the drive of expanding size until the entire capacity is filled before deleting it again. The "with FF" option ensures that the program writes logical 1's to the drive instead of 0's, which is effectively the same as erasing used blocks (since 1 represents the reset state of a cell), while 0's is what a standard full format or a run with HDDErase would use, which causes excess writes to the drive and requires that all blocks then be reset.



Hi thanks for the info I ran the program and I still have that 5gb gap on one ssd. Thanks for your help and it still says unknown on crystaldisk. Again Thank you VERY much for your suggestion.
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a b G Storage
September 5, 2010 8:26:30 AM

I must be blind and didn't read your problem correctly. Try deleting all partitions and re-creating them (you can do this in the Windows installer if you want, just make sure you use Vista or Win 7 to do it otherwise there's more work involved). At least your drives will be restored to full performance after doing all that :D 
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September 5, 2010 10:03:50 AM

randomizer said:
I must be blind and didn't read your problem correctly. Try deleting all partitions and re-creating them (you can do this in the Windows installer if you want, just make sure you use Vista or Win 7 to do it otherwise there's more work involved). At least your drives will be restored to full performance after doing all that :D 


I ran windows seven disk, as if I was going to install windows as I run through setup it sees my os drive (a new 128gb ssd) and the 64gb ssd.

I choose the 64gb drive and it only sees 59.5gb of the 64gb drive. Choose format and it formats the 59.5 section. no issues there. I'm wondering what happened to 5gb of space.

Here is a snip of the disk properties. (This is a 64gb drive)

http://img718.imageshack.us/content_round.php?page=done...

http://img718.imageshack.us/img718/9763/capturessd.png


This is the crystal disk report

http://a.imageshack.us/img839/6094/capturessdcrystal.pn...
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a b G Storage
September 5, 2010 10:10:08 AM

Don't format it, delete the partition. Then create a new one in its place. Formatting won't change the size, it will simply erase the MFT for that volume.
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September 5, 2010 10:28:35 AM

randomizer said:
Don't format it, delete the partition. Then create a new one in its place. Formatting won't change the size, it will simply erase the MFT for that volume.



Sorry for this stupied question but how do I delete partition?? (I see 1 59gb volume)

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a b G Storage
September 5, 2010 10:33:08 AM

You should see an option to delete it near the bottom. It might be hidden under the "advanced" options, which can be enabled by clicking the option on the right hand side at the bottom (as shown below):



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a b G Storage
September 6, 2010 1:16:04 AM

Ok, well that seems fairly normal since a 64GB drive is really a ~60GB drive due to the units used to calculate drive capacity. Most manufacturers assume that 1MB = 1000kB when rating their drives but in reality 1MB = 1024kB so the formatted capacity is smaller. I suspected that this might have been the case with the 64GB drive but the other one seems odd. I assumed the other drive was labelled as a 128GB drive which would format to around 120-122GB, not 112GB, unless my maths is wrong or I'm reading your posts wrong.
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September 6, 2010 3:07:38 AM

randomizer said:
Ok, well that seems fairly normal since a 64GB drive is really a ~60GB drive due to the units used to calculate drive capacity. Most manufacturers assume that 1MB = 1000kB when rating their drives but in reality 1MB = 1024kB so the formatted capacity is smaller. I suspected that this might have been the case with the 64GB drive but the other one seems odd. I assumed the other drive was labelled as a 128GB drive which would format to around 120-122GB, not 112GB, unless my maths is wrong or I'm reading your posts wrong.



Ok i can accept it... lol One last question kingston ssd now series supports trim (my other 64gb does) when I looked at crystal disk trim was not in bold like SMART is. My other kingston 64 SMART and TRIM is bold. Why would crystal disk read it as unknown..
pic...

http://a.imageshack.us/img839/6094 [...] rystal.png
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a b G Storage
September 6, 2010 5:17:23 AM

You'll have to fix that link :)  I can guess what it looks like though. CDI simply reports what firmware flags tell it. If the firmware says it doesn't support TRIM then CDI will say the same. The flags aren't always right though, because the firmware developers may not have set them correctly. It's rather difficult to know if TRIM commands ever reach the drive, and impractical to find out if the drive actually performs any action after receiving the command.** Check and see if there are any firmware updates available for your drive (CDI reports the current version). They should be posted somewhere on the Kingston website, else you may want to check their official support forums if they have any as some manufacturers post the most recent updates their long before they hit the main site. You will also find out if the firmware has problems from the forums.



** You could benchmark the drive, then fill the drive with data and delete a few GB and benchmark it again. If the performance is significantly worse, TRIM is not working. If it's fairly similar, TRIM is working. Of course you're wearing the drive down a bit by doing this.
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September 6, 2010 5:46:18 AM

randomizer said:
You'll have to fix that link :)  I can guess what it looks like though. CDI simply reports what firmware flags tell it. If the firmware says it doesn't support TRIM then CDI will say the same. The flags aren't always right though, because the firmware developers may not have set them correctly. It's rather difficult to know if TRIM commands ever reach the drive, and impractical to find out if the drive actually performs any action after receiving the command.** Check and see if there are any firmware updates available for your drive (CDI reports the current version). They should be posted somewhere on the Kingston website, else you may want to check their official support forums if they have any as some manufacturers post the most recent updates their long before they hit the main site. You will also find out if the firmware has problems from the forums.



** You could benchmark the drive, then fill the drive with data and delete a few GB and benchmark it again. If the performance is significantly worse, TRIM is not working. If it's fairly similar, TRIM is working. Of course you're wearing the drive down a bit by doing this.



Thank you for all your time you have gone way above the call of duty for me I thank you very much!!
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a b G Storage
September 6, 2010 5:54:26 AM

No problem :)  In the end, the best thing to do is just use your drive. Many people worry and tear their hair out over every benchmark run because they think their performance is not "right," but you'd never see them do it on a HDD. My drive had a number of issues with early firmware versions, and performance was going down 80% in some cases. Did I notice it in real world usage (light usage mind you)? Nope, not at all. An SSD is so much faster than a HDD that slow is fast and fast is...

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September 6, 2010 6:06:23 AM

lmao great picture... I guess your right it is faster.. It's people like you here that have moved me from changing a laptop hard drive, to building my first desktop and tuning it. So again thank you so much again!!
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