WD Purple 5400 or 7200

Generally, two WD purple 4TB will be less than one 8TB, two 6TB less than one 12TB. Put half your cameras on one drive, the other half on the other, and not risk losing everything when your one 10/12TB drive fails.

Also, that way you have half the bandwidth writing to each drive, instead of full bandwidth writing to one drive.

These larger capacity drives are for people running out of physical space for drives.
 
Those buying a 10TB or 12TB WD Purple HDDs have a choice of spin speeds, 7200 RPM or 5400 RPM. Do the advantages of 7200 justify the disadvantages, in reliability, life expectancy, heat, power consumption etc. Presumable WD thought there was a market for those who saw an advantage in a 7200 RPM drive over a 5400 RPM drive, or was it just spin?
 
I run Dell Optiplex 7040 i7-6700 machines for Blue Iris: one at home and another at work. One has a 7200 rpm WD Purple, the other has a 5400 rpm WD purple drive. I'can't tell the difference between the two. But we all know that "more is better," so go with the 7200 drive. smiley2.gif
 
I just changed the setup on my BI PC. As the price of SSDs has dropped I have added a second ssd (232GB) . The BI new folder uses 200 GB of the SSD. I now have a BI stored folder on the WD purple. I believe this will reduce the activity on the WD, as it will only be writing complete files. The ware on the SSD is not a concern as the prices continue to drop. But it will be interesting to see how long it lasts.
 
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DmaxDually said:
Ok Thanks..Yes I was looking on WD website and noticed there is no 7200 purple. I will get the WD purple 8TB 5400 drives..
Click to expand...

They have 7200 on their site now...
Model # Capacity Interface RPM Class Cache
WD121PURZ 12TB SATA 6Gb s 7200 rpm 256MB
WD100PURZ 10TB SATA 6Gb s 5400 rpm 256MB
WD101PURZ 10TB SATA 6Gb s 7200 rpm 256MB
WD80PURZ 8TB SATA 6Gb s 5400 rpm 128MB
WD81PURZ 8TB SATA 6Gb s 5400 rpm 256MB

.... more in the list on their site. According to their site 7200 rpm/256MB only starts at 8TB

I went with the WD101PURZ - 10TB / 7200rpm / 256MB - we will see how it lasts. It will be recording 24/7.

Walrus said:
Generally, two WD purple 4TB will be less than one 8TB, two 6TB less than one 12TB. Put half your cameras on one drive, the other half on the other, and not risk losing everything when your one 10/12TB drive fails.

Also, that way you have half the bandwidth writing to each drive, instead of full bandwidth writing to one drive.

These larger capacity drives are for people running out of physical space for drives.
Click to expand...

Great idea. Probably a better idea and thought about 2 6 TB but there was no 7200 rpm and only 5400.

I am trying to keep the BI5 Gods happy and prevent any issues by going with their Recommended Specs on the BI website:

Intel core i7 with QuickSync for hardware decoding

8GB or more RAM

Microsoft Windows 10 64 bit

nVIDIA graphics adaptor for efficient screen display

7200+ RPM drives and/or SSD drive
 
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I bought 8 TB Purple 7200. Seems the line is being updated.

WD Purple WD82PURZ 8 TB Hard Drive - SATA (SATA/600) - 3.5" Drive - Internal - 7200rpm - 256 MB Buffer
 
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I am in the same boat as other here. Need a new storage drive as my desktop drive, not surprisingly, shit the bed.

I was curious about the new 8TB WD purple drive (WD82PURZ) and came across the WD datasheet and it is interesting that the new drive uses approx the same power but has updated firmware (what is different I don't know) but according to the WD dataheet can have twice the number of drives in an array, supports AI streams, whatever that is, has twice the annualized workload and one order of magnitude less read/write errors as the previous drive so.....

I realize that a lot of this is marketing wank but all figures being the same or better, I am going to go for the new model.

Oh, and it's also less expensive than the WD81PURZ it is apparently replacing so a win there as well.
 
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I reached out to Western Digital on 5400 vs 7200.
They said the 7200 obviously offers faster reads and writes and are more suited to run an OS, execute programs quicker, and transfer files,
He said the 7200 uses more power, more heat, and their lifespan can turn out to be shorter than a lower RPM drive.
He said the 5400 uses less power, less heat, and is quieter.

If you are looking for performance, get the 7200.
Otherwise, if you are looking to storage data such from cameras, he recommended the 5400.
 
Dseg42 said:
I...He said the 7200 uses more power, more heat, and their lifespan can turn out to be shorter than a lower RPM drive.
He said the 5400 uses less power, less heat, and is quieter...
Click to expand...

Every one of those points is directly contradicted by the official WD data sheet for their purple drives for the 8TB size. Haven't researched the other sizes but would expect similar results.

The only point I may agree on is shorter lifespan HOWEVER this is not substantiated by their own test data and the warranty is the same in any event so really not relevant.

Doesn't mean the data sheet is correct but I would believe that before a phone droid.
 
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