<div dir="ltr">Hi folks,<div><br></div><div>This chapter on sharding and how to configure it went into the RHGS 3.1 Administration Guide some time ago:</div><div><a href="https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3.1/html/Administration_Guide/chap-Managing_Sharding.html">https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3.1/html/Administration_Guide/chap-Managing_Sharding.html</a><br></div><div><br></div><div>If there's anything in here that isn't clear, let me know so I can fix it.</div><div><br></div><div>It doesn't seem to show up if you search on the customer portal; I'll get in touch with JP Sherman and see what we can do about that.</div><div><br></div><div>Cheers,</div><div>Laura B</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Mar 10, 2017 at 2:17 AM, Vijay Bellur <span dir="ltr"><<a href="mailto:vbellur@redhat.com" target="_blank">vbellur@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote"><span class="">On Thu, Mar 9, 2017 at 11:10 AM, Kevin Lemonnier <span dir="ltr"><<a href="mailto:lemonnierk@ulrar.net" target="_blank">lemonnierk@ulrar.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span class="m_31458836374497982gmail-">> I've seen the term sharding pop up on the list a number of times but I<br>
> haven't found any documentation or explanation of what it is. Would someone<br>
> please enlighten me?<br>
<br>
</span>It's a way to split the files you put on the volume. With a shard size of 64 MB<br>
for example, the biggest file on the volume will be 64 MB. It's transparent<br>
when accessing the files though, you can still of course write your 2 TB file<br>
and access it as usual.<br>
<br>
It's usefull for things like healing (only the shard being headed is locked,<br>
and you have a lot less data to transfert) and for things like hosting a single<br>
huge file that would be bigger than one of your replicas.<br>
<br>
We use it for VM disks, as it decreases heal times a lot.<br>
<span class="m_31458836374497982gmail-HOEnZb"><font color="#888888"><br></font></span></blockquote><div><br></div><div><br></div></span><div>Some more details on sharding can be found at [1].</div><div><br></div><div>Regards,<br></div><div>Vijay</div><div><br></div><div>[1] <a href="http://blog.gluster.org/2015/12/introducing-shard-translator/" target="_blank">http://blog.gluster.org/2015/<wbr>12/introducing-shard-<wbr>translator/</a></div></div></div></div>
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