From: Arno on
Timothy Daniels <NoSpam(a)spammeknot.biz> wrote:
> "Lynn McGuire" wrote:
>>> That hybrid RAID system sounds intriguing (out of my league, but
>>> still intriguing). Was all the software/firmware commonly available,
>>> or did you author some of it yourself? Care to share pointers with
>>> others here who might want to do the same or similar?
>>
>> Also see this new Seagate hybrid hard drive:
>> http://www.newegg.com/Product/Product.aspx?Item=N82E16822148591

> Seagate Momentus XT ST95005620AS 500GB 7200 RPM 32MB Cache
> 2.5" SATA 3.0Gb/s with NCQ Solid State Hybrid Drive for $135 plus
> applicable state tax plus $6.30 shipping. Nice price point.

> *TimDaniels*

$60 for a 4GB SSD. Nice racket Seagate has going there.
Also don't expect wonders with an SSD this small, this
is still fundamentally a HDD.

Arno
--
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno(a)wagner.name
GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans


From: DevilsPGD on
In message <8c9qtlF5foU1(a)mid.individual.net> Arno <me(a)privacy.net> was
claimed to have wrote:

>Timothy Daniels <NoSpam(a)spammeknot.biz> wrote:
>> "Lynn McGuire" wrote:
>>>> That hybrid RAID system sounds intriguing (out of my league, but
>>>> still intriguing). Was all the software/firmware commonly available,
>>>> or did you author some of it yourself? Care to share pointers with
>>>> others here who might want to do the same or similar?
>>>
>>> Also see this new Seagate hybrid hard drive:
>>> http://www.newegg.com/Product/Product.aspx?Item=N82E16822148591
>
>> Seagate Momentus XT ST95005620AS 500GB 7200 RPM 32MB Cache
>> 2.5" SATA 3.0Gb/s with NCQ Solid State Hybrid Drive for $135 plus
>> applicable state tax plus $6.30 shipping. Nice price point.
>
>> *TimDaniels*
>
>$60 for a 4GB SSD. Nice racket Seagate has going there.
>Also don't expect wonders with an SSD this small, this
>is still fundamentally a HDD.

You're not buying a 500GB 7200rpm drive and a 4GB SSD. Rather, you're
buying those components, plus Seagate's logic to give you the best
possible performance out of those components.

You might be paying more than the individual components would cost, but
from the reviews I've read, if you can't justify a SSD (or have a user
who can't grasp managing a SSD and 7200 rpm drive in the same system),
it looks like this drive is a reasonable compromise.
From: Arno on
DevilsPGD <Still-Just-A-Rat-In-A-Cage(a)crazyhat.net> wrote:
> In message <8c9qtlF5foU1(a)mid.individual.net> Arno <me(a)privacy.net> was
> claimed to have wrote:

>>Timothy Daniels <NoSpam(a)spammeknot.biz> wrote:
>>> "Lynn McGuire" wrote:
>>>>> That hybrid RAID system sounds intriguing (out of my league, but
>>>>> still intriguing). Was all the software/firmware commonly available,
>>>>> or did you author some of it yourself? Care to share pointers with
>>>>> others here who might want to do the same or similar?
>>>>
>>>> Also see this new Seagate hybrid hard drive:
>>>> http://www.newegg.com/Product/Product.aspx?Item=N82E16822148591
>>
>>> Seagate Momentus XT ST95005620AS 500GB 7200 RPM 32MB Cache
>>> 2.5" SATA 3.0Gb/s with NCQ Solid State Hybrid Drive for $135 plus
>>> applicable state tax plus $6.30 shipping. Nice price point.
>>
>>> *TimDaniels*
>>
>>$60 for a 4GB SSD. Nice racket Seagate has going there.
>>Also don't expect wonders with an SSD this small, this
>>is still fundamentally a HDD.

> You're not buying a 500GB 7200rpm drive and a 4GB SSD. Rather, you're
> buying those components, plus Seagate's logic to give you the best
> possible performance out of those components.

Which is rather limited. Also I seriously doubt the "best possible".
It will be something that is showy on benchmarks (and optimized to
be) and will give somerather limited boost on actual usage. Of course,
if you always only use the same 2-3GB of the disk, it will be fast,
but then getting a small (say, 30GB) SSD would have been as fast or
faster at the same price, and that for all 30GB of it. For
large accesses or repetitive accesses that exceed a 4GB window,
the hybrid disk can basically do nothing and may even slow things
down due to trashing.

> You might be paying more than the individual components would cost, but
> from the reviews I've read, if you can't justify a SSD (or have a user
> who can't grasp managing a SSD and 7200 rpm drive in the same system),
> it looks like this drive is a reasonable compromise.

This is a laptop drive. For this special case only, it does make
some limited sense as you cannot put two drives into most
laptops. For the general case getting both a 500GB drive
and a 30GB SSD and then putting OS and often accessed data on
the 30GB SSD will cost about the same and be far more effective.

Given what the 4GB SSD costs Seagate and what they can charge
for it, it is quite clear why Seagate marketing is hyping this
thing.

Arno

--
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno(a)wagner.name
GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans
From: Percival P. Cassidy on
On 08/05/10 01:32 pm, Timothy Daniels wrote:

>> Intel 160 GB ssd drive now $425:
>> http://www.newegg.com/Product/Product.aspx?Item=N82E16820167017
>>
>> OK, this is getting very close to my buy point. Very close.

> Personally, I'd get two (one for the page file). :-)

It was suggested to me recently that, because of the finite number of
writes that SSDs will survive, the only thing for which they are really
suitable is something that will seldom be written but frequently read --
i.e., the OS itself.

Perce
From: Lynn McGuire on
> It was suggested to me recently that, because of the finite number of writes that SSDs will survive, the only thing for which they
> are really suitable is something that will seldom be written but frequently read -- i.e., the OS itself.

And that number of finite writes is ?

Lynn