[Kojak]

I used to see 230 MB/s. Although their S.M.A.R.T. status shows they are healthy,
is it possible my V'raptors are beginning to fail ? Yes ? No ? Or perhaps they are testing
slower with nearly double the Data they once contained ?

[Match]

Or maybe they are just slowing a bit with age, as the platter surface degrades slightly, and the motors and bearings wear slightly, combined with the extra data on them, but as your not getting any unusual noises or read write errors I wouldn't have thought they are starting to fail.

also is this the system you have OC'ed, It might be just that it's taking a little longer to sync the clock signal and so increasing the access times slightly. Come to think about it when over clocking and pushing stability to it's limits it's little problems like this that create the instabilities.

But lets hope Dalo is around on Monday and see what he thinks

[Kojak]

Match, on 25 Jul 2010 - 10:19 AM, said:

Or maybe they are just slowing a bit with age, as the platter surface degrades slightly, and the motors and bearings wear slightly, combined with the extra data on them, but as your not getting any unusual noises or read write errors I wouldn't have thought they are starting to fail.

also is this the system you have OC'ed, It might be just that it's taking a little longer to sync the clock signal and so increasing the access times slightly. Come to think about it when over clocking and pushing stability to it's limits it's little problems like this that create the instabilities.

But lets hope Dalo is around on Monday and see what he thinks

Yeeeaaa... I'm only running a 30.3 % overclock on air...


P.S.

I dropped back to stock to test your idea.
It made no difference. I'd say they're getting a little tired.

[Match]

Quote

P.S.

I dropped back to stock to test your idea.
It made no difference. I'd say they're getting a little tired.

LOL so blinding you with Science don't work lol, TBH I think unless your prepared to do a low level format, and then test them were grasping at straws. but just because they are running a little slower than they were when new wouldn't cause me to think they were starting to fail.

[Kojak]

Match, on 25 Jul 2010 - 12:16 PM, said:

LOL so blinding you with Science don't work lol, TBH I think unless your prepared to do a low level format, and then test them were grasping at straws. but just because they are running a little slower than they were when new wouldn't cause me to think they were starting to fail.

Hmmm... Low level format... I like that idea. I'm gonna have to look into that.

[Match]

thinking about things the more data that is on a HDD the slower the read write speeds will be, as the outside of the platter has to spin at a faster speed to keep up with the inside and my understanding is that data is written to the outside tracks first so that you have faster read speeds for any OS that is put on them, and when it comes to writing it would take longer as the HDD would have to find space to write to.

Also I'll bet that your 10,000rpm Raptor's aren't quite running at 10,000rpm any more, as my understanding of electro magnets is that they become magnetised and weaker with use. so I think your slower read and write times would be a result of both the amount of data stored on the disk and wear on the moving components over time.

[Kojak]

Match, on 25 Jul 2010 - 12:59 PM, said:

thinking about things the more data that is on a HDD the slower the read write speeds will be, as the outside of the platter has to spin at a faster speed to keep up with the inside and my understanding is that data is written to the outside tracks first so that you have faster read speeds for any OS that is put on them, and when it comes to writing it would take longer as the HDD would have to find space to write to.

Also I'll bet that your 10,000rpm Raptor's aren't quite running at 10,000rpm any more, as my understanding of electro magnets is that they become magnetised and weaker with use. so I think your slower read and write times would be a result of both the amount of data stored on the disk and wear on the moving components over time.

Correct, you are.

[Dalo Harkin]

Raptors were great when they were fist introduced, but they are getting a bit long in the tooth now
There could be many factors affecting the drives speeds, do you have any of the 'power save' options on?
also never rely on just one monitoring piece of software.
if your after speed and depending on budget/requirements then go for SSD or if you dont want to invest in such a volatile priced product then opt for 10,000 or 15,000RPM older SCSI drives and a controller

Remember that if you have any other HDDs in your system and you are writing to one say a standard 7200RPM then you are limited by this devices speed and not the raptors.

[Kojak]

Dalo Harkin, on 26 Jul 2010 - 03:10 AM, said:

Raptors were great when they were fist introduced, but they are getting a bit long in the tooth now
There could be many factors affecting the drives speeds, do you have any of the 'power save' options on?
also never rely on just one monitoring piece of software.
if your after speed and depending on budget/requirements then go for SSD or if you dont want to invest in such a volatile priced product then opt for 10,000 or 15,000RPM older SCSI drives and a controller

Remember that if you have any other HDDs in your system and you are writing to one say a standard 7200RPM then you are limited by this devices speed and not the raptors.

I had my ST3250310NS in the case. It ain't dere no mo' ! 225 Read. 229 Write.

[Dalo Harkin]

Good

[Match]

Quote

Remember that if you have any other HDDs in your system and you are writing to one say a standard 7200RPM then you are limited by this devices speed and not the raptors.

OK Right then didn't know that, but I do now and noted for my new build next year, as I was planning on putting and old Sata II drive with a Sata III Drive looks like its an extra £51 for another Sata III Drive

And the Wifes PC gets my Old Sata II drives