Maybe it's a stupid question but...

A RaQ4 ronly comes with a power supply of 50Watts

So, if you change the HD's (5400rpm) of RaQ4r with a 7200rpm one, will it lead to power problems?

I'm not thinking of changing the disks to improve the speed, but simply if one of my disks fails, I want to be sure a 7200rpm disk won't give me problems...

Even if one disk is a 5400rpm one, and the other a 7200rpm...?

Greetz;

Fiberoptic

Originally posted by FiberOptic
Maybe it's a stupid question but...

A RaQ4 ronly comes with a power supply of 50Watts

So, if you change the HD's (5400rpm) of RaQ4r with a 7200rpm one, will it lead to power problems?

I'm not thinking of changing the disks to improve the speed, but simply if one of my disks fails, I want to be sure a 7200rpm disk won't give me problems...

Even if one disk is a 5400rpm one, and the other a 7200rpm...?
Greetz;
Fiberoptic

The Raq4r OS will not like you using a 7200 & a 5400 drive together. It'll rebuild the Raid drive everytime you reboot. The Drives need to be EXACTLY the same Size, make, model. Yadda...Yadda...Yadda

I believe the PowerSupply will support the 7200k drives, but they do run hotter then 5400k drives. So you may be faced with a thermal issue if you decide to run 2 7200k drives.

So...

if one of my disks fails...
and I replace that one using another MAXTOR 30GB driver instead of the seagate one... I won't fuction??? (Got TERRIBLE experiences using SEAGATE)



grrrrrrmmm

So, It would be good if I order another disk of exactly the same type (seagate 30GB 5400RPM) cause I don't believe they'll be available for a long time...

Greetz...

It would be smart to have an exact identical spare available. Small price to pay for such good insurance.

One minor correction, the power supply in your RaQ4 is a 60W power supply.

Here are some power requirements for a standard Maxtor 5400rpm drive I frequently use:

Spin up 27W
idle/seek 4-6W

And for a 7200rpm Barracuda:

Spin up 41W
idle/seek 7-10W

You power supply could probably handle one, but two would be pushing the envelope. And that doesn't take into account the additional cooling requrements from the excess heat. While I'm sure there are those that are already running a pair of 7200's and claiming it works fine, there's no doubt that they will eventually see reduced component life (power supply, etc.) from the continual strain.

Brandon

Originally posted by FiberOptic
So...

if one of my disks fails...
and I replace that one using another MAXTOR 30GB driver instead of the seagate one... I won't fuction??? (Got TERRIBLE experiences using SEAGATE)


Correct.... Upon boot, Cobalt will see that the drives are not IDENTICAL and assume a problem between the drives. Cobalt will Re-Mirror the secondary drive from the primary drive. After this re-mirror, everything will function correctly.....until the next boot.

Here's the "gotcha Ya" ..... If the primary drives fails after boot and after the OS has started the Re-Mirror process.... You lose!

The drives must be the EXACT same size, make & model. I have found the same to be true with different model Maxtor 40gb drives. I know for a fact that Maxtor has at least 3 different models of 40gb 5400k IDE drives. each just a tad different.

Go Figure!!

Pfffffffffffffffffff :-(

So...
My RaQ4r is 1.5 years old...

Finding the same type/make of that F*cking Seagate will be almost impossible I guess...

Perhaps I might better buy 3 new 5400RPM disks...
2 to replace the current drives...
and one for the case when one fails...

I'm not so stupid to do this while I got much sites running on it, but at the moment he's not in use so that's the right time to clean it ... and ... replace disks :)

I did also want to install 7200 rpm disks but my reseller said that it wouldn't help as the Raq4i (i for me, not sure about the r) was ATA-33 only.

Thus you put in a 7200 rpm wouldn't help right? It would revert back to ATA-33 even if you use an ATA-66 compatible harddisk.

Note that if you use a 7200rpm and an 5400rpm harddisk on the same IDE bus/cable they both would slow down to the 5400rpm speed.

Please do correct me if I am wrong. :)

I'd also recommend that you use a 5400rpm Maxtor drive. As has already been mentioned, the 7200rpm drive is likely to have a shorter MTBF (under the conditions that it's to be used under in a server) and will place an increased burden on other components.

The Maxtor 5400rpm drives seem to be well liked and have proven themselves reliable for this type of use. I've only heard bad stories about IBM drives (though they have their followers) so wouldn't personally use them. I've had limited experience with the Seagate drives, but I guess people tend to settle on a make that they know.

You should always check the manufacturers recommendations for a particular drive spec too. Amazingly these days, there are plenty of drives not recommended for 24 hours continuous access (I did mention I didn't like IBM already, didn't I? ;) )

Would you be looking to sell you're old hard disks FiberOptic ? If they would work in my NasRaq i'd be interested in them if you were considering selling them. Are you in the UK ? What size are they 30gb ?

Please email me if you are interested

daleks_have_lumpy_bits@yahoo.com

Cheers

Dalek :D

Hy,

I live in belgium, and 2 new HD's of 40GB costed me only €200 so don't hesitate and buy new ones from a local shop...

Do you know if 40gb drives would work in a Nasraq m8 ???

Dalek

Normally a bios only has an 8GB and 42GB limit.

So, if it can handle a 9GB HD, It won't have any problems with a 40GB...


Just try it out...

Normally a bios only has an 8GB and 42GB limit. Well, consider the >32GB issue with a RaQ3, that invalidates your statement, doesn't it.

Ow, I didn't know RaQ3 has a problem with >32GB disks...

But normal PC's have the limits of above