<div dir="ltr"><div class="gmail_default" style="font-family:monospace,monospace">Hi, can you check IOPS? and state # of VM's ? do : iostat -x 1 for a while =) <br><br></div><div class="gmail_default" style="font-family:monospace,monospace">Isnt RAID discouraged ? AFAIK gluster likes JBOD, am I wrong?<br><br><br></div><div class="gmail_default" style="font-family:monospace,monospace">regards, <br></div><div class="gmail_default" style="font-family:monospace,monospace">JP<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2017-10-25 12:05 GMT-03:00 Bryan Sockel <span dir="ltr"><<a href="mailto:Bryan.Sockel@altn.com" target="_blank">Bryan.Sockel@altn.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)">Have a question in regards to storage performance. I have a gluster replica 3 volume that we are testing for performance. In my current configuration is 1 server has 16X1.2TB( 10K 2.5 Inch) drives configured in Raid 10 with a 256k stripe. My 2nd server is configured with 4X6TB (3.5 Inch Drives) configured Raid 10 with a 256k stripe. Each server is configured with 802.3 Bond (4X1GB) network links. Each server is configured with write-back on the raid controller.</div>
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)"> </div>
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)">I am seeing a lot of network usage (solid 3 Gbps) when i perform file copies on the vm attached to that gluster volume, But i see spikes on the disk io when watching the dashboard through the cockpit interface. I spikes are up to 1.5 Gbps, but i would say the average through put is maybe 256 Mbps.</div>
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)"> </div>
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)">Is this to be expected, or should it be a solid activity in the graphs for disk IO. Is it better to use a 256K stripe or a 512 strip on the hardware raid configuration?</div>
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)"> </div>
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)">Eventually i plan on having the hardware match up for better performance.</div>
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)"> </div>
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)"> </div>
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)">Thanks</div><span class="HOEnZb"><font color="#888888">
<div style="font-size:13.3333px;font-family:Tahoma;color:rgb(0,0,0);font-weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll padding-box border-box rgba(0,0,0,0)"> </div>
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<div>Bryan</div>
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