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Simple Q: GbE vs. SATA

J

J4M3S0N79

Gawd
Joined
Jul 25, 2002
Messages
812
Greetings!
I have a question and I am absolutely astounded that I do not know the answer to this.

Currently, I have 4 SATA 250GB drives attached to my old(ish) mobo. No RAID...just 4 independent drives. The problem here is that I would like to move to a RAID and I would like to have a dedicated storage box (drives are in my HTPC now). I really liked the idea of going with a NAS box that can do RAID and would be hooked up via GbE. The question, will I notice a significant degradiation in performance on these drives? I know that typically local drives are way faster, but I had a tenant in my data center that said that the performance they get on their fiber-channel array (88TB......no joking) was FAR SUPERIOR to any local array. Now clearly, fiber is a different game, but it got me thinking if I could match (or come close) to the performance of my native drives...I could put the NAS out of the way, and have instant portability.

Thoughts?
 
GbE is potentially 125 MB/s, but you need good network cards on both ends - and a good switch in the middle - to do that. It's a good idea to move your storage onto the network, IMO, but you won't necessarily get all the speed out of it that you could with it directly connected. I know when I have really disk-intensive things to do (unzipping a zip file >1gb) I ssh over to the file storage box and do it there, but I'm on 100mbit rather than gigE.

Fiber-channel is indeed a whole different ball game ;)

 
Gig-E with good NICs can be a cost effective to fiber-channel if you choose the right hardware. TCP-Offload NICs are coming down in price...
 
I think a local drive will be faster than any networked drive that normal people can "afford".

I got a NAS with GigE + jumbo frames enabled and it gets around 10-15MB/sec writing from PC to NAS. 40MB/sec from NAS to PC.

The NAS is running on some flavor of Linux. HDDs are 3 x 7200.8 in RAID5. On my PC I have Samsung 200GB SATA, intel Pro M 1000 NIC.

I would say if you want performance to just keep it local RAID. If you want the versatility of NAS then get one otherwise you will not be impressed by the performance coming from local drives.
 
I think a local drive will be faster than any networked drive that normal people can "afford".

I got a NAS with GigE + jumbo frames enabled and it gets around 10-15MB/sec writing from PC to NAS. 40MB/sec from NAS to PC.

The NAS is running on some flavor of Linux. HDDs are 3 x 7200.8 in RAID5. On my PC I have Samsung 200GB SATA, intel Pro M 1000 NIC.

I would say if you want performance to just keep it local RAID. If you want the versatility of NAS then get one otherwise you will not be impressed by the performance coming from local drives.
Click to expand...
QFT.
 
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