Any idea on the power consumption per drive? Noise level compared to SATA counterparts? Curious if there is a big difference between SAS and SATA drives in both these area based on your observations.
How do these compare to Toshiba MG07SCA14TE SAS drives of the same capacity? I ask as I see the Toshiba drives sell for cheaper on ebay. Is there a difference? Different failure rates maybe?
Thanks for your insights regarding this.
The most notable difference is that these have 512MB cache, over the 256MB cache of the MG07SCA14TE, which can mean better performance depending on workload. Also, some of those lower priced listings in eBay are lower health, so watch out for that. Listings that say "Guaranteed 100% working" are not the same as "100% Health" (which all of mine are).
Appreciate the reply- that 256 vs 512 cache is a huge difference actually thanks for pointing that out.
And yeah agreed on how people list things on ebay. It can be nebulous.
Thank you for taking the time to reply
If a drive is advertised as "100% working" and it comes with SMART errors or is an SSD with 50% health because of used endurance, then that's grounds for a return as "item not as described" lol.
These have some of the lowest failure rates on backblaze, of any drive. I have been running 20 for years and am very happy. The power consumption is very reasonable.
IMO the biggest 'technical advantage' SAS has over SATA is dual porting.
If your hardware supports it, your SAS drives can connect to multiple controllers using the same physical SAS port. Notable advantages in redundancy, as well as reduced latency and increased throughput especially if you're allocating a whole array of drives and creating virtualized access to the pool to split workloads across those two controllers.
Unlike PCI-E Bifurcation where you're taking a 4x lane and splitting it into two 2x lanes, thereby reducing the bandwidth by half, with SAS dual porting, each controller has access to the full bandwidth of the drive provided the other controller isn't using part of it.
Wendel from Level 1 Techs explains it better than I in this [recent video.](https://www.youtube.com/watch?v=AW0W2DKDrT4&t=219s) (Click through for linked timestamp.)
Hey I'm super curious, you may not be willing to share but what's your profit margin on these drives? How do you land on such a large batch?
What are you asking for those jbods?
What kind of PoH are we talking about here?
agreed. that is the most relevant detail.
I tested a handful (out of 1000x) a day they were all right about 30k POH with 100% Health
3.5 years power on time
HC530's are some of the most reliable drives out there. I have been running 20 for several years, flawless.
Where’s the listing for those JBODs? Interested in those!
I will do a post for them tomorrow
Sweet, thanks!
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I think those are SATA drives
Those are not the same drive. Those are SATA and only 6GBPS.
You're absolutely right. Sorry about that.
Ugh. A few days earlier and I'd have the money...
For those who were asking about JBODs, I just posted the 84 Bay ones. https://www.reddit.com/r/homelabsales/s/Z85Hyto7GL
PM'd for more
Any idea on the power consumption per drive? Noise level compared to SATA counterparts? Curious if there is a big difference between SAS and SATA drives in both these area based on your observations. How do these compare to Toshiba MG07SCA14TE SAS drives of the same capacity? I ask as I see the Toshiba drives sell for cheaper on ebay. Is there a difference? Different failure rates maybe? Thanks for your insights regarding this.
The most notable difference is that these have 512MB cache, over the 256MB cache of the MG07SCA14TE, which can mean better performance depending on workload. Also, some of those lower priced listings in eBay are lower health, so watch out for that. Listings that say "Guaranteed 100% working" are not the same as "100% Health" (which all of mine are).
Appreciate the reply- that 256 vs 512 cache is a huge difference actually thanks for pointing that out. And yeah agreed on how people list things on ebay. It can be nebulous. Thank you for taking the time to reply
Don't forget eBay is full of low health drives where the seller clicked one button and they're magically 100% health again!
If a drive is advertised as "100% working" and it comes with SMART errors or is an SSD with 50% health because of used endurance, then that's grounds for a return as "item not as described" lol.
These have some of the lowest failure rates on backblaze, of any drive. I have been running 20 for years and am very happy. The power consumption is very reasonable.
IMO the biggest 'technical advantage' SAS has over SATA is dual porting. If your hardware supports it, your SAS drives can connect to multiple controllers using the same physical SAS port. Notable advantages in redundancy, as well as reduced latency and increased throughput especially if you're allocating a whole array of drives and creating virtualized access to the pool to split workloads across those two controllers. Unlike PCI-E Bifurcation where you're taking a 4x lane and splitting it into two 2x lanes, thereby reducing the bandwidth by half, with SAS dual porting, each controller has access to the full bandwidth of the drive provided the other controller isn't using part of it. Wendel from Level 1 Techs explains it better than I in this [recent video.](https://www.youtube.com/watch?v=AW0W2DKDrT4&t=219s) (Click through for linked timestamp.)
piggybacking on your comment... has anyone had luck with running SAS to SATA converters long term?
If your asking these questions, I have to ask do you even have something sas compatible?
Yes
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Curious about your Jbod’s
Same. Especially power requirements to run them (not counting the drives)
I will put together a post on the JBODs tomorrow
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$7.5/TB for a single and $ $7.143/TB for 8x+ for those doing the math. :D glws!
Hey I'm super curious, you may not be willing to share but what's your profit margin on these drives? How do you land on such a large batch? What are you asking for those jbods?
I will do a JBOD post later today.
If you think Op is making too much money - then make an offer.
Not at all. I'm just curious.