Shouldn't I be getting faster reads?

 

/dev/sda:

Timing cached reads:  6180 MB in  2.00 seconds = 3093.63 MB/sec

Timing buffered disk reads:  64 MB in  3.01 seconds =  21.28 MB/sec

 

/dev/sdb:

Timing cached reads:  6294 MB in  2.00 seconds = 3150.75 MB/sec

Timing buffered disk reads: 800 MB in  3.00 seconds = 266.40 MB/sec

 

/dev/sdc:

Timing cached reads:  6128 MB in  2.00 seconds = 3067.99 MB/sec

Timing buffered disk reads: 300 MB in  3.01 seconds =  99.58 MB/sec

 

/dev/sdd:

Timing cached reads:  6066 MB in  2.00 seconds = 3037.01 MB/sec

Timing buffered disk reads: 272 MB in  3.02 seconds =  89.92 MB/sec

 

/dev/sde:

Timing cached reads:  6172 MB in  2.00 seconds = 3090.28 MB/sec

Timing buffered disk reads: 396 MB in  3.00 seconds = 131.82 MB/sec

 

/dev/sdf:

Timing cached reads:  6092 MB in  2.00 seconds = 3050.36 MB/sec

Timing buffered disk reads: 356 MB in  3.00 seconds = 118.51 MB/sec

 

/dev/sdg:

Timing cached reads:  6128 MB in  2.00 seconds = 3067.20 MB/sec

Timing buffered disk reads: 386 MB in  3.01 seconds = 128.29 MB/sec

 

/dev/sdh:

Timing cached reads:  6070 MB in  2.00 seconds = 3039.12 MB/sec

Timing buffered disk reads: 404 MB in  3.01 seconds = 134.32 MB/sec

 

/dev/sdi:

Timing cached reads:  5886 MB in  2.00 seconds = 2946.34 MB/sec

Timing buffered disk reads: 418 MB in  3.01 seconds = 138.77 MB/sec

 

/dev/sdj:

Timing cached reads:  6044 MB in  2.00 seconds = 3025.55 MB/sec

Timing buffered disk reads: 262 MB in  3.01 seconds =  86.98 MB/sec

Why?

 

You didn't specify what drives they are.  I assume sda is your flash, and sdb is an unlisted (not in your signature) ssd?  The others look relatively normal for a set of hard drives, including 2 Reds.