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SSD RAID 0 with two other HHD drives that are not part of the RAID 0

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  • NAS / RAID
  • Storage
  • SSD
Last response: in Storage
August 24, 2013 3:19:11 PM

Can I use a SSD RAID 0 setup with two other HHD drives that are not part of the RAID 0

More about : ssd raid hhd drives part raid

August 24, 2013 3:20:35 PM

Yes you can.
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a b G Storage
August 24, 2013 3:21:05 PM

samson13 said:
Can I use a SSD RAID 0 setup with two other HHD drives that are not part of the RAID 0


yes, you can use the ssd's in raid 0 and have to regular non raid HDDs connected (you can also have those 2 hdds in a raid)
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a c 1801 G Storage
August 24, 2013 3:31:57 PM

Yes you can. But why do you want to?
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August 24, 2013 3:33:04 PM

Thanks for the answers. Now I'm learning that RAID 0 does not work so well with SSD.
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a c 1801 G Storage
August 24, 2013 3:35:39 PM

samson13 said:
Thanks for the answers. Now I'm learning that RAID 0 does not work so well with SSD.


That's why I asked 'why'...:) 
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a c 174 G Storage
August 24, 2013 3:52:36 PM

It also doesn't provide any tangible benefits on the desktop....never has .... except for some very highly specialized applications.
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a b G Storage
August 24, 2013 4:14:10 PM

Its not that Raid doesn't work well with SSD's, its just that if you have a Sata 3 system, you wont notice any performance increases in real applications (you will get better scores in benchmarks though).

However, that doesn't mean its not good. Raid 0 will let you combine, say, 2 128gb ssds to form a 250gb drive to use, as opposed to 2 small 128 drives.

If you have a older sata 2 system, raid will make a noticeable improvement in speeds, since an SATA 2 provies only ~250mb/s bandwidth and a good SSD will be bottlenecked by that.

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a c 1801 G Storage
August 24, 2013 5:06:30 PM

oczdude8 said:
Its not that Raid doesn't work well with SSD's, its just that if you have a Sata 3 system, you wont notice any performance increases in real applications (you will get better scores in benchmarks though).

However, that doesn't mean its not good. Raid 0 will let you combine, say, 2 128gb ssds to form a 250gb drive to use, as opposed to 2 small 128 drives.

If you have a older sata 2 system, raid will make a noticeable improvement in speeds, since an SATA 2 provies only ~250mb/s bandwidth and a good SSD will be bottlenecked by that.



And 2 x 128 independent drives gives exactly the same space as 2 x 128 drives in RAID0. But without the RAID overhead, and possibility of RAID array failure.
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August 24, 2013 5:14:31 PM

oczdude8 said:
Its not that Raid doesn't work well with SSD's, its just that if you have a Sata 3 system, you wont notice any performance increases in real applications (you will get better scores in benchmarks though).

However, that doesn't mean its not good. Raid 0 will let you combine, say, 2 128gb ssds to form a 250gb drive to use, as opposed to 2 small 128 drives.

If you have a older sata 2 system, raid will make a noticeable improvement in speeds, since an SATA 2 provies only ~250mb/s bandwidth and a good SSD will be bottlenecked by that.



One of the reasons I thought about using it was that my motherboard only supports SATA II, and I wanted the increase in speed. Maybe it is not worth the possible problems.
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a b G Storage
August 24, 2013 7:42:42 PM

samson13 said:
oczdude8 said:
Its not that Raid doesn't work well with SSD's, its just that if you have a Sata 3 system, you wont notice any performance increases in real applications (you will get better scores in benchmarks though).

However, that doesn't mean its not good. Raid 0 will let you combine, say, 2 128gb ssds to form a 250gb drive to use, as opposed to 2 small 128 drives.

If you have a older sata 2 system, raid will make a noticeable improvement in speeds, since an SATA 2 provies only ~250mb/s bandwidth and a good SSD will be bottlenecked by that.



One of the reasons I thought about using it was that my motherboard only supports SATA II, and I wanted the increase in speed. Maybe it is not worth the possible problems.


There are no problems with it. I can tell you from personal experience, not just common sense which you also seem to have, that you will get faster speeds.

I am running 2 Samsung 830 SSDs in raid 0 on my X58 mobo. I get 500mb/s read/write. I have also tried using a single one, and its not anywhere near as fast. my setup is comparable to that of a 250gb Samsung 840 pro running on a new sata 3 system.

Also regarding failures : good SSD's are much more reliable then old HDDs and wont fail for alteast 5 years. Plus its an invalid argument to say 2 SSDs in raid is twice as likely to fail as 2 separate SSDs. if one drive fails you will still lose data, regardless of raid or not. This argument is only valid when comparing a single 250gb drive vs 2 128gb drives.

If you do decide to get a single 250gb drive, it will be heavily bottlenecked at 250mb/s and yes the difference IS noticeable.

In a Sata 2 system with SSD's raid is your best friend.
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