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Archive for the category “Test”

RAID0 and Short-Stroking vs. standard Hard Drive Setup

I had some surprising results with this test. Let me start by saying that this wasn’t a scientifically rigorous test because there were far too many variables, but the results were still surprising.

I compared a Windows 7 installation on a single Western Digital WD1001FALS 7200 RPM 32MB cache 3.0 Gb/s max 1TB drive ( which WD has replaced with a faster model that I don’t yet own) to a Windows Vista SP2 installation on a hardware RAID 0 (striped) set of WD 160GB 7200 drives manufactured in 2005 and pulled out of some old iMac G5s. SiSoft reported these drives as running at 5400RPM, which would make these results more shocking. To reduce the distance the hard drive’s head has to move to transfer data, which is what makes magnetic storage media so slow, I created a 100GB partition out of the 320 available. That partition sits on the outermost edge of the drive platter, keeping the head ‘stroke’ distance very short. SiSoftware’s SANDRA 2014 reported this for each :
Windows 7 on single drive : 46.6IOPS, 44MB/s
Windows Vista on RAID 0 short-stroked drives : 242IOPS, 96.6MB/s

This has proven for me that downloading every game I own on Steam and Origin and storing them on a massive drive is making my powerful hardware a waste of money.


Installing Apple OS X 10.6 Snow Leopard on Thumbdrive

Elements tested:
– 2.4GHz mid 2007 Macbook Pro 15″ (model #1226) running OS X Snow Leopard 10.6.3
– 32GB Corsair Survivor GTR USB Thumbdrive formatted Mac OS Extended Journaling

Goal: To create a portable Macintosh OS environment.

Conditions: Installed by booting using the Operating System disc.

Results: Inconclusive; ultimately impractical.

Reason for Result: A normal installation with this hardware takes approximately 35 minutes to complete, however installation to the thumbdrive took over 3 hours, the last of which was spent idling at the 1 minute left mark.

Reason for Attempt: The Survivor thumbdrive provided the best read/write speeds available on the market for USB 2.0 drives (34MBs read/28MBs write), giving the drive the best possible chance of competing with an external drive (like the Seagate FreeAgent Go 500GB, with speeds around 30.6MBs read 20MBs write).

Possible Solutions: Enable user permission and extract critical information from the installation CD ahead of time using this walkthrough.

Booting a Macintosh from a USB Thumbdrive

Elements tested:
– 2.4GHz mid 2007 Macbook Pro 15″ (model #1226) running OS X Snow Leopard 10.6.3
– 32GB Corsair Survivor GTR USB Thumbdrive running “The Ultimate Bootable Flashdrive Tool.”
rEFIt boot manager installed from a mac disk image.

Goal: To boot from the Corsair thumbdrive.

Results: Unable to boot from Corsair thumbdrive.

Reason for Result: The rEFIt website clearly states that the Apple firmware has poor support for booting from external devices under their troubleshooting section.

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