Barracuda 7200.7 sata 160gb noise.

[Fred]

but rather simply to change settings.

If it can't even tell you the correct information
then how would it be able to change settings?

Just issue the command to change the AMM state,
even when the drive doesnt claim to support AMM.

Hitachi is not Seagate. Seagate is not
Hitachi. They are competing companies.

In fact Hitachi's Feature Tool will toggle various
features in other manufacturer's drives.

If Seagate drives are noisy or slow and can't be adjusted
while Hitachi drives can, that is to Hitachi's benefit. So why
would they make a tool that worked with Seagate drives?

Yes, you can make a case that a manufacturer's tool
should only do anything on one of their drives. Some
manufacturers choose not to write the tools like that.
Not just Feature Tool but quite a few diagnostics will
do some tests on other manufacturer's drives.

In fact Feature Tool DOES change the AMM mode on
the earlier Seagate drives that do report that they support
AMM, even if you could make a case for not doing that.

If the two drives work identically in some particular
regard then the Hitachi tool will work with both.

And a tool can obviously be written so that it will
attempt to change a particular feature, even if
the drive doesnt claim to support that feature.

If Seagate changes the way a particular feature is implemented
then Hitachi has no reason to change their utility accordingly

Yes, but that may happen anyway, if the tool was
originally written so that it did change the AMM mode
even when the drive doesnt report that it supports AMM.

and every reason to not do so.

In fact Feature Tool DOES change the AMM mode on
the earlier Seagate drives that do report that they support
AMM, even if you could make a case for not doing that.

So the fact that Hitachi utility does not do whatever
you want it to do with a Seagate drive just tells you
that Seagate drives are different from Hitachi drives.

In fact Feature Tool DOES change the AMM mode on
the earlier Seagate drives that do report that they support
AMM, even if you could make a case for not doing that.

 

[Rod Speed]

One last point - what amazed me about the VII I got is that it did
not have that thick rubber sleeve that a V Seagate drive of mine had.
Correct.

Maybe heat is an issue - I don't know - but I suspect one
of those rubber sleeves would have reduced any noise.

Yeah, good point.

Be interesting to see how the new Samsungs turn out on noise.

 

[Jaime]

Well I fianlly brought this drive and now wish I hadnt. The
idle

work?

Fraid not. You basically need one that will change the AMM setting
with SATA drives even when the drive doesnt report supporting AMM.
I'm not aware of one that does that, but its technically trivial to implement.

Maybe Svend might add that to his in the circumstances.

AFAIK I think HDPARM will do this for me, I hope. I'm just downloading a new
enought distribution of linux that has support for my sata controller
(hopefully). Then I (we) will find out if it will do this. If it does then
HDPARM is potentially very useful to many people.

If theres an easier tool or one someone can write then I'd apreciate the
info.

Thanks

Jaime

 

[John Smith]

Can someone explain to me, like Dummies style, what this AMM mode/state is
and some background on how you can gets HDs either to perform faster or to
reduce performance so that you have a quieter drive?

I had never heard of this prior to this thread.


J.

but rather simply to change settings.

If it can't even tell you the correct information
then how would it be able to change settings?

Just issue the command to change the AMM state,
even when the drive doesnt claim to support AMM.

Hitachi is not Seagate. Seagate is not
Hitachi. They are competing companies.

In fact Hitachi's Feature Tool will toggle various
features in other manufacturer's drives.

If Seagate drives are noisy or slow and can't be adjusted
while Hitachi drives can, that is to Hitachi's benefit. So why
would they make a tool that worked with Seagate drives?

Yes, you can make a case that a manufacturer's tool
should only do anything on one of their drives. Some
manufacturers choose not to write the tools like that.
Not just Feature Tool but quite a few diagnostics will
do some tests on other manufacturer's drives.

In fact Feature Tool DOES change the AMM mode on
the earlier Seagate drives that do report that they support
AMM, even if you could make a case for not doing that.

If the two drives work identically in some particular
regard then the Hitachi tool will work with both.

And a tool can obviously be written so that it will
attempt to change a particular feature, even if
the drive doesnt claim to support that feature.

If Seagate changes the way a particular feature is implemented
then Hitachi has no reason to change their utility accordingly

Yes, but that may happen anyway, if the tool was
originally written so that it did change the AMM mode
even when the drive doesnt report that it supports AMM.

and every reason to not do so.

In fact Feature Tool DOES change the AMM mode on
the earlier Seagate drives that do report that they support
AMM, even if you could make a case for not doing that.

So the fact that Hitachi utility does not do whatever
you want it to do with a Seagate drive just tells you
that Seagate drives are different from Hitachi drives.

In fact Feature Tool DOES change the AMM mode on
the earlier Seagate drives that do report that they support
AMM, even if you could make a case for not doing that.

 

[Jaime]

Can someone explain to me, like Dummies style, what this AMM mode/state is
and some background on how you can gets HDs either to perform faster or to
reduce performance so that you have a quieter drive?

I had never heard of this prior to this thread.

AFAIK its a way of changing the head movement algorithms of the drive so
that it moves position differently, either performing faster or decuding the
noise that it makes. A utility is needed to change this however due to a
patent dispute seagate no longer provide one. AFAIK the only way to change
this is with the hitatchi tool mentioned or with linux hdparm, intel
application accelerator has the option for this under windows on intel ide
controllers however I tried on my cuda 4's ad it didnt want to change their
state. The difference in performance and noise of the setting of the AMM is
ntirerly dependent on the model of the drive (and possibly the specific
drive ? ) some drive alow changes in small increments (128 - 256 setting
IIRC) others have only 2 settings, fast and noisy or quiet and slow. On most
disks the performance penalty doesnt seem to be hughely significant for most
people.

Jaime

 

[John Smith]

Thanks - that explains it.

J.

AFAIK its a way of changing the head movement algorithms of the drive so
that it moves position differently, either performing faster or decuding the
noise that it makes. A utility is needed to change this however due to a
patent dispute seagate no longer provide one. AFAIK the only way to change
this is with the hitatchi tool mentioned or with linux hdparm, intel
application accelerator has the option for this under windows on intel ide
controllers however I tried on my cuda 4's ad it didnt want to change their
state. The difference in performance and noise of the setting of the AMM is
ntirerly dependent on the model of the drive (and possibly the specific
drive ? ) some drive alow changes in small increments (128 - 256 setting
IIRC) others have only 2 settings, fast and noisy or quiet and slow. On most
disks the performance penalty doesnt seem to be hughely significant for most
people.

Jaime