<div dir="ltr">Thank you Andreas. Then how the blocks are distributed? Are they in a round-robin fashion, supposing there are 6 disks.<div style>Thanks,</div><div style><br></div><div style>Jialin</div></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Thu, Jul 11, 2013 at 10:06 PM, Dilger, Andreas <span dir="ltr"><<a href="mailto:andreas.dilger@intel.com" target="_blank">andreas.dilger@intel.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im">On 2013-07-11, at 22:20, "Jaln" <<a href="mailto:valiantljk@gmail.com">valiantljk@gmail.com</a>> wrote:<br>
> If the I/O request is less than one stripe width, what will happen on the OST?<br>
> Is the lustre gonna access the whole stripe?<br>
<br>
</div>The stripe size controls the amount of data written to one OST before moving to the next OST. It doesn't control the IO size on the OST itself. The minimum IO size on the OST is 4096 bytes, the blocksize of the underlying ldiskfs filesystem.<br>
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Cheers, Andreas</blockquote></div><br><br clear="all"><div><br></div>-- <br><pre style="margin:0in;font-family:Arial,Helvetica,sans-serif;font-size:large" lang="en-US" align="left"><font><font face="comic sans ms,sans-serif"><font color="#666666"><span>Genius only means hard-working all one's life</span></font></font></font></pre>
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