iHeartMacs
Explorer
- Joined
- Oct 5, 2017
- Messages
- 56
I have a couple cans of anti static spray.
Sent from my SAMSUNG-SGH-I537 using Tapatalk
I just use BOUNCE!
I have a couple cans of anti static spray.
Sent from my SAMSUNG-SGH-I537 using Tapatalk
My Primary NAS is a similar build. One of its most important tasks is as a Time Machine target for a bunch of macs.
Currently I'm working on a 10gbe upgrade for it, as it means being able to service up to 10 clients simultaneously at full gbit speed each.
Time machine writes are temporarily cached in ram before being flushed to disk. No need for ssd cache.
Would recommend either 6-way or 8-way RaidZ2 vdevs in a 24 bay backup device.
No, 110 degrees is way too hot. You have to keep the input air on the server cool enough that it can cool the internal components. After adjusting the fans in my server, it is quiet enough that I keep it in my office about 8 feet from my desk and it is perfectly tolerable.I know these are extremely loud. I've read about changing out the fans or putting a fan controller on the stock fans. I'll read more into that. I originally wanted to keep this in the office that has AC but the noise would be unbearable. I'm trying to make a judgement call on what would be better. I can have quite fans that might compromise integrity of the machine (if I don't research the hell out of it first) in a 24/7 AC's office or put it in a well ventilated server closet that might reach 110 degrees.
Please let us know what brand of drives you intend to buy. I need to buy some stock in that company - I'll get rich off the number of drives you'll buy.or put it in a well ventilated server closet that might reach 110 degrees.
Yeah I was being facetious but probably to tired to try and express sarcasm in text. I'll most likely have to get some sort of AC in the closet. :(Please let us know what brand of drives you intend to buy. I need to buy some stock in that company - I'll get rich off the number of drives you'll buy.
My home server closet with dedicated A/C stays at 70F. The drives all run around 40C, or 104F. That's all Supermicro gear with their fans, running at whatever speed the system decides is proper. So, the drives are 34F above ambient. In your world, that would put you at 144F or 62C.
Refer to page 6 of this document, and watch the failure rate skyrocket with drive temps north of 50C:
https://static.googleusercontent.com/media/research.google.com/en//archive/disk_failures.pdf
Messing with the fan speeds of a chassis that is designed for high static pressure fans is dangerous.
https://forums.freenas.org/index.ph...-hds-recommendations.24453/page-4#post-255614
https://forums.freenas.org/index.ph...n-1st-freenas-build.28814/page-11#post-300857
https://forums.freenas.org/index.php?threads/replacement-of-fans-fan-0126l4.43712/#post-289354
etc
The reason the fans are noisy is because they're pouring a lot of energy into making a low pressure zone that causes air to seep through the minuscule gaps around your hard drives to cool them. The fix isn't to sabotage the fans, because that only sabotages your cooling and slows or stops the air from flowing around some of your drives. The fix is to do something rational to cool. You can use a larger (probably non-rackmount) chassis with larger 120mm fans and drives mounted in 5.25" HH bays, as an example. As an alternative, you can also get a 24 bay rackmount chassis and put 12 drives in it in a staggered pattern that avoids having two drives stacked on top of each other, making sure to include the Supermicro slot blanks, which reduces the heat load and offers larger spaces for cooling, so you can probably mess with the fans on that somewhat and still be safe. This works pretty well but isn't as good as a properly-built system.
Hi, I ended up getting that one just for myself. Should I spend the time to crossflash the LSI 9210-8i or should I just get the LSI 9211-8i and call it a day?That unit has a hardware RAID controller that would need to come out and be replaced by a plain SAS HBA. You might want to go with this model instead, and it is less expensive:
https://www.ebay.com/itm/Supermicro...ore-128gb-24-Bay-JBOD/372154285756?rmvSB=true
The physical layout of the two cards is different, where the connectors are, but they are virtually identical in the ways that matter. If you flash the IT mode firmware on the one you got, it should be fine.Hi, I ended up getting that one just for myself. Should I spend the time to crossflash the LSI 9210-8i or should I just get the LSI 9211-8i and call it a day?
The physical layout of the two cards is different, where the connectors are, but they are virtually identical in the ways that matter. If you flash the IT mode firmware on the one you got, it should be fine.
PS. The biggest difference is that the 9210 was only sold as an OEM part.
https://www.broadcom.com/products/storage/host-bus-adapters/sas-9210-8i#overview
A switch like this would probably do great for you: https://www.neweggbusiness.com/product/product.aspx?item=9b-33-150-165
You might be able to fine one a little less expensive, but this one has four SFP+ ports and all you need to do is put a Chelsio SFP+ adapter in the NAS. Then all the 1GB clients could access the NAS at full speed and you have three more ports for 10GB connections if you have certain clients or other servers that need the speed.
The Ubiquity switch has two SFP+ (10GB) ports and two SFP (1GB) ports. How many ports do you need to be 10GB is the question?Hi Chris,
I'm finally getting my 10GB setup. If I get a switch with SFP not SFP+ do I need anything other than the Chelsio card? I'm thinking about this Switch. https://www.amazon.com/Ubiquiti-Uni...520213949&sr=8-6&keywords=ubiquity+switch+poe and the S320E-SR-XFP Chelsio card. This means I'd just get an SFP cable and plug and play?
The Ubiquity switch has two SFP+ (10GB) ports and two SFP (1GB) ports. How many ports do you need to be 10GB is the question?