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QNAP TS-453A 4-Bay Professional-Grade Network Attached Storage TS-453A-4G-US $429

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Price dropped over $100! Great NAS if you're looking to upgrade or get into a new NAS.

https://smile.amazon.com/QNAP-Pro...B017YB7T6U
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#2
My data needs are currently 4 Tb and I am looking to build a NAS this BF. I am looking to build a Raid 5 with 3 X 3 TB drives so I can have 6 Tb of space.

If I buy this 4 bay NAS what options should I go with so I dont spend too much and still keep my data around 6 Tb? Thanks.
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#3
Great catch on the price drop! In 4 one!
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#4
Quote from purple
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My data needs are currently 4 Tb and I am looking to build a NAS this BF. I am looking to build a Raid 5 with 3 X 3 TB drives so I can have 6 Tb of space.

If I buy this 4 bay NAS what options should I go with so I dont spend too much and still keep my data around 6 Tb? Thanks.
Raid 10 4X3TB drives enjoy the benefits of great redundancy that can take multiple disk failures which Raid 5 cannot, and also enjoy great READ and Write performance which Raid 4 does not offer and you get your 6TB of space.
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#5
Quote from purple
:
My data needs are currently 4 Tb and I am looking to build a NAS this BF. I am looking to build a Raid 5 with 3 X 3 TB drives so I can have 6 Tb of space.

If I buy this 4 bay NAS what options should I go with so I dont spend too much and still keep my data around 6 Tb? Thank
The 4 bay should work for your needs but I wouldn't go with 3TB drives. It's much better to start off higher so that you have the space. 3x6TB drives will net you around 11-12gb in Raid 5.

I personally run a Qnap with 5x6TB drives in Raid 6. I have about 12TB of storage (I padded extra options so I lose a few TBs). I have room for 3 more spindles and 4 more SSD's. If you need more storage, I think this model can use the drive bay extender but I'm not sure.

One other thing to note: This device is "professional" but it's running an Intel Celeron. It may not be able to truly decode like the higher up systems.
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#6
Quote from PeteyTheStriker
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Raid 10 4X3TB drives enjoy the benefits of great redundancy that can take multiple disk failures which Raid 5 cannot, and also enjoy great READ and Write performance which Raid 4 does not offer and you get your 6TB of space.
You only get protection from multiple disk failures if you get lucky and only one drive fails in each mirrored set. If both drives fail on the same mirrored set you just lost your array, exactly like you would have in RAID 5 - so you paid for an extra drive that didnt buy you any more redundancy. So if speed isn't super important go with RAID 5 and keep an eye on your array.
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Last edited by hugonher October 19, 2017 at 10:49 AM.
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#7
i have had my NAS Ts 509 Pro Raid 5 since 2010/


i will never go with another nas/qnap has been great
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Gone before i had a chance, even with the alert. That sucks.
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#9
Quote from hugonher
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You only get protection from multiple disk failures if you get lucky and only one drive fails in each mirrored set. If both drives fail on the same mirrored set you just lost your array, exactly like you would have in RAID 5 - so you paid for an extra drive that didnt buy you any more redundancy. So if speed isn't super important go with RAID 5 and keep an eye on your array.
That is true but thats still better odds, not to mention you get the better write and read performance.
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#10
Quote from hugonher
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You only get protection from multiple disk failures if you get lucky and only one drive fails in each mirrored set. If both drives fail on the same mirrored set you just lost your array, exactly like you would have in RAID 5 - so you paid for an extra drive that didnt buy you any more redundancy. So if speed isn't super important go with RAID 5 and keep an eye on your array.
The other consideration which I've read about but have not experienced myself is that it is not uncommon to have errors when you rebuild a raid 5 or 6 array. The controller needs to read data off of all drives in order to rebuild the lost drive. People seem to have less failures when rebuilding a RAID 10 array from what I've read on difference forums. That is why I use a RAID 10 even though I get less storage space out of my drives. Has anyone experienced errors and rebuilding raid 5 or 6 arrays?
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Last edited by xanthamn2 October 19, 2017 at 11:19 AM.
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#11
Quote from purple
:
My data needs are currently 4 Tb and I am looking to build a NAS this BF. I am looking to build a Raid 5 with 3 X 3 TB drives so I can have 6 Tb of space.

If I buy this 4 bay NAS what options should I go with so I dont spend too much and still keep my data around 6 Tb? Thanks.
If you are just going to use it for storage and not for running Plex, I would suggest going with the QNAP TS-431P. It's only $267 at Newegg [newegg.com] and has been as low as $220. I run one now and it has been great.

As to HDDs, as others have said, go for more storage. Get at least 4TB drives if not 6TB or 8TB. HGST preferred but they will cost you more (and run a little bit louder if that matters to you).
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#12
Quote from xanthamn2
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The other consideration which I've read about but have not experienced myself is that it is not uncommon to have errors when you rebuild a raid 5 or 6 array. The controller needs to read data off of all drives in order to rebuild the lost drive. People seem to have less failures when rebuilding a RAID 10 array from what I've read on difference forums. That is why I use a RAID 10 even though I get less storage space out of my drives. Has anyone experienced errors and rebuilding raid 5 or 6 arrays?
Have not used RAID 6 much at all actually, but Raid 5 is usually pretty stable, not major issues in rebuilds. Its always good practice to have a external drive backing up the whole array for real redundancy which is what I do, just in case. Yes I know its a lot of drives but if your data is important you need to pay the price.
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Quote from BigBigBlake
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Gone before i had a chance, even with the alert. That sucks.
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#14
There can be bit rot and data errors with any RAID restores. Remember, RAID is not backup. It's fault tolerance. Always backup your data to another media. Personally I backup my extremely important files to an external USB and cloud storage. If my raid dies, I have onsite and offsite restore options.

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#15
I bought it. Been waiting forever for a QNAP deal to come along. QNAP experts, is this a good deal?
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