windows 7

[Bandit1]

Heya.I have neither windows 7 rc nor an ssd,but i am planning this setup,as it makes sense to me for the most part.

I was wondering if anyone can say for sure if the windows 7 rc has more than just "some ssd improving" implements or a fully possible final release trim function?

2ndly,i can't find the other article i was reading,but it said a raid configuration would be defeating because a trim function in raid is not supported,then i come across this Text excerpt:

Do RAID configurations make sense with SSDs? Yes. The reliability and performance benefits one can obtain via HDD RAID configurations can be had with SSD RAID configurations.

So i am confused about that as well.

Thanks for responses.- 🙂

 

[taltamir]

that claim is refering to performance without TRIM... afaik trim isn't ready yet, but it will be soon.
Even without trim a vertex or an intel X25-M will be much faster than any regular drive, and windows 7 RC does correctly align them.

 

[Rebel44]

Windows 7 already has final version of TRIM.

For TRIM to work 3 things have to support it -
1. SSD (Vertex wil have new firmware which will support native TRIM - that firmware will most likely be available this month)
2. (ONYL FOR RAID) storage controller driver (I wasnt able to find out when they plan to release new drivers which will add TRIM support)
3. OS (Win 7 alresady support TRIM, Vista most likely will get TRIM support, XP wont get TRIM support, Linux will support TRIM, not sure about OSX)


Some info from Win 7 blog:
http://blogs.msdn.com/e7/archi...ives-and.aspx#comments

craigbarkhouse said:
Yes, Trim is already in the Win7 RC.
Trim is enabled by default but can be turned off. You can use the "fsutil behavior query|set DisableDeleteNotify" command to query or set Trim.
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Correct, if fsutil reports that "DisableDeleteNotify" is 0, then Trim is enabled. (The feature is sometimes referred to using different names: Trim == Delete Notification == Unused Clusters Hint.) The setting is written in terms of disabling something because we like to use values of 0 for defaults.

Have Trim enabled according to this setting, which you do, means that the filesystem will send Trim commands down the storage stack. The filesystem doesn't actually know whether this command will be supported or not at a lower level. When the disk driver receives the command, it will either act on it or ignore it. If you know for sure that your storage devices don't support Trim, you could go ahead and disable Trim (enable DisableDeleteNotify) so the filesystem won't bother to send down these notifications. However sending down the notifications is pretty lightweight and I haven't seen any performance improvement by disabling them, so I don't recommend disabling this setting. If you have an SSD which does support Trim, then you definitely don't want to disable it, because there are some performance gains to be had for leaving the setting in its default form.
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@m.oreilly:

Yes, fsutil shows the same value in the Beta and the RC, because Trim is supported and enabled by default in both the Beta and the RC. 😉

I should add that very few (if any) SSD drives in the marketplace today actually support Trim. Most of the ones that do are next-generation prototypes. But when they do become available, Windows 7 will take advantage.

- Craig (NTFS team)

 

[taltamir]

2. storage controller driver (I wasnt able to find out when they plan to release new drivers which will add TRIM support)

AFAIK there is no modifications neederd for the storage controller, only the OS and the Drive need to support trim, the controller just forwards it as it would any other command without understanding it...
Unless you mean hardware raid controller?

And yes, windows 7 RC supposedly has their supposedly final version of trim, but it is hard to test it without the native trim support on the vertex later this month.

although, there is already a vertex trim via software (that can install on vista and XP as well).

 

[Rebel44]

Originally posted by: taltamir

2. storage controller driver (I wasnt able to find out when they plan to release new drivers which will add TRIM support)

AFAIK there is no modifications neederd for the storage controller, only the OS and the Drive need to support trim, the controller just forwards it as it would any other command without understanding it...
Unless you mean hardware raid controller?

And yes, windows 7 RC supposedly has their supposedly final version of trim, but it is hard to test it without the native trim support on the vertex later this month.

although, there is already a vertex trim via software (that can install on vista and XP as well).

Yeah I was talking about RAID, but forgot to mention it 🙂

 

[alcoholbob]

I guess I'll have to swap my OS drive from Intel to Vertex if the new firmware will natively support Windows 7 TRIM! Damn Intel and your laziness.

 

[taltamir]

there is still a month until the vertex implements trim, lets wait until then to see if intel did or did not before condemning them.