Service Action to Prevent PSU Failures in ReadyNAS NV/NV+

samundsen wrote:
Btw, I tried to remove some of the dust screen... but that stuff seem to be glued to the door, and would be very hard to remove.

You have to play around with it a little to pull it off. A safety pin might do the trick for you.

I'm concerned about the fan reversal procedure.... I've just never seen computer hardware that blow air into the system, all the PCs, servers and storage systems I work with all pull hot air out.

Actually one of our earlier boxes, the ReadyNAS X6, has a fan in the front that blows into the drives.

So you replaced a power supply that had a fan with a fanless power supply (probably to reduce noise levels), now that appears to have not been a very smart move.... and you either increase the RPM of the one fan left, or reverse the airflow because power supplies are failing.... Don't think I have ever heard anything quite like this before.

Going fanless in the PSU reduces the high pitch noise that the small fan generated. Raising the RPM on the larger fan is not as noticeable -- more of a lower-pitch hum. In any case, you can try reversing the fan if the ReadyNAS is situated in the same vicinity where you may notice it.

Sorry to be pesky but...

SJMarty wrote:
After installing via local update and rebooting, I received this message in a pop-up window when I accessed via FrontView... This add-on (Enhance_NV_Thermal_Characteristics) does not apply to this system. [Thu Apr 19 21:25:53 EDT 2007]

What should I do at this point?

yoh-dah, just curious...

What are the new ReadyNAS NV+ units being shipped with:
1. The higher speed fan setting
2. A fan that draws air in from the back
3. Both?

Thanks

Well, the title says it all. Noise is a big issue for me (I just rebuilt, with help, a new pc so that it will be quiet).

So I reversed the fan, but the NAS+ is now idling only a fraction of the time it did before, so maintaining idle speed wasn't much help.

The room itself has good airflow and isn't hot (yet- summer is coming). The NAS is on a board on the floor (not on the carpet), with nothing nearby to restrict airflow.

Can I mount bigger fans or additional low speed fans to keep RPM and dB down? What about using a Scythe or similar ultra-quiet fan? Would this work? Do you have better suggestions?

Thanks.

SJMarty wrote:
Sorry to be pesky but... SJMarty wrote: After installing via local update and rebooting, I received this message in a pop-up window when I accessed via FrontView... This add-on (Enhance_NV_Thermal_Characteristics) does not apply to this system. [Thu Apr 19 21:25:53 EDT 2007] What should I do at this point?

There's a EnableFanMinRPMOverride addon at http://www.infrant.com/wiki/index.php/Add-Ons that allows you to override the minimum fan RPM. You can install this and manually set it for 2100. This will essentially do the same thing.

Krusher wrote:
yoh-dah, just curious... What are the new ReadyNAS NV+ units being shipped with: 1. The higher speed fan setting 2. A fan that draws air in from the back 3. Both? Thanks

New ReadyNAS NV+ that will get into the field will be shipped with 2100 min RPM.

bashkin001 wrote:

Well, the title says it all. Noise is a big issue for me (I just rebuilt, with help, a new pc so that it will be quiet). So I reversed the fan, but the NAS+ is now idling only a fraction of the time it did before, so maintaining idle speed wasn't much help. The room itself has good airflow and isn't hot (yet- summer is coming). The NAS is on a board on the floor (not on the carpet), with nothing nearby to restrict airflow. Can I mount bigger fans or additional low speed fans to keep RPM and dB down? What about using a Scythe or similar ultra-quiet fan? Would this work? Do you have better suggestions? Thanks.

If you take out the black mesh behind the grill, you'll find the fan speed go back to idle. Try opening the door and you'll see the fan speed go down after awhile. When taking out the mesh, use a safety pin and tug the mesh gently out from the back of the door.

On my NV+, the entire grill piece can be removed from the door, allowing one to remove the mesh. Simply apply gentle pressure against the exposed grill sections from the back of the door until it pops out.
My mesh did have some dust on the front of it - matching the pattern of the grill and back of the door.

leong wrote:
On my NV+, the entire grill piece can be removed from the door, allowing one to remove the mesh. Simply apply gentle pressure against the exposed grill sections from the back of the door until it pops out. My mesh did have some dust on the front of it - matching the pattern of the grill and back of the door.

If you choose to do this, do so carefully. We typically don't recommend this because some grills can be stuck in the frame pretty good, and we wouldn't want you to break off the door by accident.

yoh-dah wrote:
New ReadyNAS NV+ that will get into the field will be shipped with 2100 min RPM.

Earlier you said that reversing the fan provides better cooling.

How will new NV+ units be shipped from the factory? (i.e. which of the following will be true)

Minimum 2100 RPM fan speed?
Reversed fan?
No mesh on front door?

Will a future firmware update enforce this without an add-on?

I want my ReadyNAS NV+ to be both reliable and quiet, but if I had to trade one for the other, I'd pick reliability.

I feel most confident doing the same thing here that you are going to do with your newly shipped boxes. Can you clarify?