HPE EVA Storage

high avgwait dueing I/O EVA6400 bl460 g7

 
caj
Frequent Advisor

high avgwait dueing I/O EVA6400 bl460 g7

Hi ,

I am seeing a high avgwait in rhel 5u6 with EVA6400 .They are connected via 2 brocade switchs .and all 4 host port are visible .

The problem I am seeign while doing dd ,Fs to fs copy and copy over netwrok .Our applciaiton will be coping the lot of files over ssh to this server .
Other than high I/O wait and high queue size .I think the copy operation is fast .

What could be wrong ?

sar -d 2 10

12:47:39 AM DEV tps rd_sec/s wr_sec/s avgrq-sz avgqu-sz await svctm %util
12:47:41 AM dev104-0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev104-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev104-2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-17 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-32 77.11 0.00 29309.45 380.08 12.38 128.50 2.82 21.74
12:47:41 AM dev8-33 77.11 0.00 29309.45 380.08 12.38 128.50 2.82 21.74
12:47:41 AM dev8-48 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-49 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-64 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-65 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-80 79.60 0.00 29333.33 368.50 12.89 130.89 2.74 21.79
12:47:41 AM dev8-81 79.60 0.00 29333.33 368.50 12.89 130.89 2.74 21.79
12:47:41 AM dev8-96 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-97 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-112 83.58 0.00 31044.78 371.43 11.68 122.69 2.64 22.04
12:47:41 AM dev8-113 83.58 0.00 31044.78 371.43 11.68 122.69 2.64 22.04
12:47:41 AM dev8-128 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-129 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-144 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-145 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-160 82.59 0.00 30642.79 371.04 11.91 124.11 2.67 22.09
12:47:41 AM dev8-161 82.59 0.00 30642.79 371.04 11.91 124.11 2.67 22.09
12:47:41 AM dev8-176 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-177 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-192 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-193 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-208 82.09 0.00 30901.49 376.44 11.68 121.98 2.69 22.09
12:47:41 AM dev8-209 82.09 0.00 30901.49 376.44 11.68 121.98 2.69 22.09
12:47:41 AM dev8-224 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-225 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-240 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev8-241 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-16 78.61 0.00 29596.02 376.51 12.67 132.55 2.77 21.79
12:47:41 AM dev65-17 78.61 0.00 29596.02 376.51 12.67 132.55 2.77 21.79
12:47:41 AM dev65-32 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-48 84.58 0.00 31188.06 368.75 11.94 125.57 2.61 22.09
12:47:41 AM dev65-49 84.58 0.00 31188.06 368.75 11.94 125.57 2.61 22.09
12:47:41 AM dev65-64 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-65 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-80 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-81 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-96 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-97 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev65-112 79.10 0.00 29452.74 372.33 12.87 132.68 2.75 21.79
12:47:41 AM dev65-113 79.10 0.00 29452.74 372.33 12.87 132.68 2.75 21.79
12:47:41 AM dev253-0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12:47:41 AM dev253-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00