External hard drive test

I’ve been trying to sort out why my Plex media server hangs occasionally or takes a while to load content. One of my suspicions was the access time to the hard drive with the media. It was an external hard drive on a shared USB bus. I just recently moved it off of that to a dedicated USB 3.0 input and ran the CrystalDiskMark program recommended by several sites including this one.

WD Speed Test

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CrystalDiskMark 5.2.2 Shizuku Edition x64 (C) 2007-2017 hiyohiyo
Crystal Dew World : http://crystalmark.info/
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* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 139.284 MB/s
Sequential Write (Q= 32,T= 1) : 124.293 MB/s
Random Read 4KiB (Q= 32,T= 1) : 0.530 MB/s [ 129.4 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 1.327 MB/s [ 324.0 IOPS]
Sequential Read (T= 1) : 134.639 MB/s
Sequential Write (T= 1) : 118.700 MB/s
Random Read 4KiB (Q= 1,T= 1) : 0.354 MB/s [ 86.4 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 1.303 MB/s [ 318.1 IOPS]

Test : 1024 MiB [G: 29.9% (836.9/2794.5 GiB)] (x5) [Interval=5 sec]
Date : 2017/10/08 21:29:44
OS : Windows 7 Home Premium SP1 [6.1 Build 7601] (x64)

The sequential Read and Writes look pretty good, but the randoms are horrible.  I know sequential is the most important in my case, but still thats bad.

To compare I ran the speed test on a Seagate Drive still on the USB bus and on my C drive which is a RAID 0 2 drive system.

Seagate Speed Test

———————————————————————–
CrystalDiskMark 5.2.2 Shizuku Edition x64 (C) 2007-2017 hiyohiyo
Crystal Dew World : http://crystalmark.info/
———————————————————————–
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 0.838 MB/s
Sequential Write (Q= 32,T= 1) : 0.812 MB/s
Random Read 4KiB (Q= 32,T= 1) : 0.275 MB/s [ 67.1 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 0.387 MB/s [ 94.5 IOPS]
Sequential Read (T= 1) : 0.838 MB/s
Sequential Write (T= 1) : 0.629 MB/s
Random Read 4KiB (Q= 1,T= 1) : 0.211 MB/s [ 51.5 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 0.382 MB/s [ 93.3 IOPS]

Test : 1024 MiB [F: 29.2% (816.9/2794.5 GiB)] (x5) [Interval=5 sec]
Date : 2017/10/08 21:58:01
OS : Windows 7 Home Premium SP1 [6.1 Build 7601] (x64)

C Drive Speed Test

———————————————————————–
CrystalDiskMark 5.2.2 Shizuku Edition (C) 2007-2017 hiyohiyo
Crystal Dew World : http://crystalmark.info/
———————————————————————–
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 87.041 MB/s
Sequential Write (Q= 32,T= 1) : 61.630 MB/s
Random Read 4KiB (Q= 32,T= 1) : 1.862 MB/s [ 454.6 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 2.187 MB/s [ 533.9 IOPS]
Sequential Read (T= 1) : 60.815 MB/s
Sequential Write (T= 1) : 61.664 MB/s
Random Read 4KiB (Q= 1,T= 1) : 0.856 MB/s [ 209.0 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 2.107 MB/s [ 514.4 IOPS]

Test : 1024 MiB [C: 66.0% (393.4/596.1 GiB)] (x5) [Interval=5 sec]
Date : 2017/10/10 21:30:17
OS : Windows 7 Home Premium SP1 [6.1 Build 7601] (x64)

 

Both of these drives are showing a really poor performance which makes me start to wonder if there is something wrong with Windows 7 and/or the hard drive drivers.   Any suggestions where to go from here?

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