title: How to get more Disk performance in Google Cloud?
body: <p>One of the volumes for one of our (Ubuntu 16.04) Google Cloud VM's is at 100% disk utilization pretty much all the time - here is a 10 second sample plucked at random from the system:</p>
  
  <pre><code>iostat -x 10
  
  Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await r_await w_await  svctm  %util
  sdd               0.60    17.20 5450.50 2468.00 148923.60 25490.00    44.05    11.81    1.49    1.13    2.29   0.13  99.60
  </code></pre>
  
  <p>This is currently a 2.5T persistent SSD.</p>
  
  <p>My understanding is I can't get better performance by adding virtual "spindles" and then distributing the workload across them.</p>
  
  <p>This is a database volume, so I can't really use volatile SSD either.</p>
  
  <p>I have currently XFS on it with these mount options:</p>
  
  <pre><code>type xfs (rw,noatime,nodiratime,attr2,nobarrier,inode64,noquota)
  </code></pre>
  
  <p>Any suggestions?</p>