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

Quick question, after installing the add-on and rebooting twice, my fan speed was upward of 2100. When I wnet back to check it I found that it occasionally was slightly lower, e.g. 2083. Is this normal? Just curious since I thought the add-on changed the min rpm to 2100.

Also, I want to thank you for answering all our questions so promptly. The feedback in this forum is generally excellent and particularly so on this issue. I recently purchased my first Infrant product, an NV+. It is reassuring to see the way you handled this product issue. Thanks.

ggemelos wrote:
Quick question, after installing the add-on and rebooting twice, my fan speed was upward of 2100. When I wnet back to check it I found that it occasionally was slightly lower, e.g. 2083. Is this normal? Just curious since I thought the add-on changed the min rpm to 2100.

Yes, that's normal. The speed may change slightly and the fan monitoring system will push it back to where it should be on a regular basis.

Also, I want to thank you for answering all our questions so promptly. The feedback in this forum is generally excellent and particularly so on this issue. I recently purchased my first Infrant product, an NV+. It is reassuring to see the way you handled this product issue. Thanks.

You're welcome! It's never easy to get a lot of customers to follow a service action, but we're serious about data integrity and avoiding unnecessary downtime. As mentioned in a previous post, we've seen less than 1% of systems getting a premature PSU failure, but that's still too high as the experience of having to go through the RMA process to get it replaced is something we all definitely want to avoid.

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. 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.

Yes, but the air has to get into the box somewhere, right? :)

All kidding aside, cooling a heterogeneous combination of components is a complex affair, and mixes of push and pull fans are used by a lot of hardware devices.

The dust filter is a nice feature, but dust build up is less of a source of problems to me than heat, and loss of the intake dust filtering is a smaller matter to me than loss of power supply (or especially drives!).

BTK* - Maybe the next generation of hardware should have a heavier duty fan (or combination of fans) that run/runs at a quiet speed all of the time. Once a month, it activates a blow-it-out-the-rear** mode and spins up to 10,000rpm to dislodge the dust. Add a speaker so that it can play cough-cough.mp3 and it might even reduce the number of smokers worldwide by a slight amount.

:) :) :)

-brendan

* back to kidding

** maybe a poor choice of phrasing?

bhoar wrote:
BTK* - Maybe the next generation of hardware should have a heavier duty fan (or combination of fans) that run/runs at a quiet speed all of the time. Once a month, it activates a blow-it-out-the-rear** mode and spins up to 10,000rpm to dislodge the dust. Add a speaker so that it can play cough-cough.mp3 and it might even reduce the number of smokers worldwide by a slight amount. :) :) :) -brendan

Yeah I can just imagine all the heart attacks caused by the fan speeding up to 10K, not to mention a big dust bunny on the wall :lol:

yoh-dah wrote:
Yeah I can just imagine all the heart attacks caused by the fan speeding up to 10K, not to mention a big dust bunny on the wall :lol:

Thar' she blows!

-brendan

yoh-dah wrote:
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.

After installing this I can't find where to set the fan speed. Enlightenment needed. :)

JasonG wrote:
yoh-dah wrote: 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. After installing this I can't find where to set the fan speed. Enlightenment needed. :)

Oops, I think I may have mentioned incorrectly that it was in the Health tab earlier. It's in the power management tab.

Gotcha, thanks 8)

What about just putting the orginal fanned power supply back in (for those of us who have replaced the original supply). The minute I received my "retrofit fanless supply kit" and noticed it was nothing more than the original supply with the fan and cover removed I figured it was going to have heat issues long term.

Would returning back to the original power supply be the ultimate preferred solution? I've had enough trouble with my 3 Ready NAS units already.

Yes, I still have my "fanned" PSU. Should I just put that back in instead?