Tim Hamilton wrote:
Date: Sat, 06 Dec 2014 12:21:23 +1100
From: Rohan McLeod <[email protected] <mailto:[email protected]>>
To: LUV Main <[email protected] <mailto:[email protected]>>
Subject: Re: PCIe SATA controller
Message-ID: <[email protected]
<mailto:[email protected]>>
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Tim Hamilton wrote:
>
> [1]
http://www.pccasegear.com/index.php?main_page=index&cPath=210_385
I notice all these controllers are SATA III.
When I was struggling to understand why my new 4TB
HGST_HDN7240_40ALE_640 SATA III HD ;
couldn't seem to deliver a much higher data transfer rate on SATA III
than on SATA II.;
one comment which was illuminating to me was;
" there is no such thing as a SATA III rotating hard-drive"
which I took to mean as :
' there is no rotating harddrive; whose heads can transfer data
on/off
the disk;
at anything like 6Gb/s ~ 600GB/s' (SATA III max)'.
in contrast to say a SATA III SSD, where this is quite possible !
Apologies if this is merely repeating old news !
regards Rohan McLeod
Indeed, I was using new cards as a reference point to begin trying to
understand what was available.
That said, I don't see an abundance of new or used SATA II cards
available on places like eBay either.
Tim perhaps this should be on luv-talk ?
For me the consequence wasn't to look for SATA II cards;
since I already had an abundance of SATA II ports on the M/B
[Asus M-M4A79XTD_EVO; 16GB RAM; AMD Phenom II x4 965 3.4GHz]
but to start replacing every rotating SATA drive except the 4TB drive
with SSD's
Thus far, as boot drives:
1/ a 120GB SATA III Intel 530 SSDSC2BW12OA401 from MSY $88;
not sure it always delivers 540 MB/s read and 490 MB/s as per Intel specs:
http://www.intel.com/content/www/us/en/solid-state-drives/solid-state-drives-530-series.html
but it seems quick.
2/ likewise not sure the 128GB PCIe Plextor_M6e_PCI-Express_SSD $200
Scorpion Tech;
always delivers 770MB/s read and 335MB/s write; as per
http://www.tomshardware.com/reviews/plextor-m6e-pci-express-ssd,3763.html
but it also seems quick;
(.but with more limited boot support on' that other OS';)
current project is to see if I can get a XPx64 VM running on Qubes;
then boot Qubes off this Plextor drive
regards Rohan McLeod
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