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<body class='hmmessage'><div dir='ltr'>Hi Maciej,<div><br></div><div>Tell me if i'm wrong but with block device you have two solutions :</div><div>1 - <span style="font-size: 12pt;">U</span><font size="3">se it with cinder and have to </font>specify<font size="3"> Boot From volume when creating a VM</font></div><div><span style="font-size: 12pt;">2 - Use it directly with meta data storage, but need to create 1 volume for each node</span></div><div><span style="font-size: 12pt;"><br></span></div><div><span style="font-size: 12pt;">In any case you loose the ability to live migrate instance.</span></div><div><span style="font-size: 12pt;"><br></span></div><div>Right ?</div><div><br><div><hr id="stopSpelling">Date: Mon, 4 Nov 2013 11:02:47 +0100<br>Subject: Re: [Openstack] Storage decision<br>From: macias@shellycloud.com<br>To: bada.boum@outlook.com<br>CC: razique.mahroua@gmail.com; openstack@lists.openstack.org<br><br><div dir="ltr"><div class="ecxgmail_extra"><div class="ecxgmail_quote">On 4 November 2013 10:46, Julien De Freitas <span dir="ltr"><<a href="mailto:bada.boum@outlook.com" target="_blank">bada.boum@outlook.com</a>></span> wrote:<br>
<blockquote class="ecxgmail_quote" style="border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex;">
<div><div dir="ltr">Hi Razique,<div><br></div><div>Thanks for the link !</div><div>I read the full discussion and as I tought there is no real perfect solution so far.</div><div>I think i'll continue to use nexenta because it's a great solution and i'll set up multi back end storage for cinder in order to test ceph block storage.</div>
<div>For meta data storage i'll do some test with CephFS because not production ready mean a lot and nothing at the same time. </div><div>I your previsous mail you said <span style="font-family:Helvetica,Arial;font-size:13px;"> "</span><span style="font-family:Helvetica,Arial;font-size:13px;">the FS kept hanging on high load, so I considered it to be pretty unstable for OpenStack", but if it was </span><span style="font-family:Helvetica,Arial;font-size:13px;"> </span><span style="font-family:Helvetica,Arial;font-size:13px;">kept hanging on high load it should be pretty stable ? what was the load ? Can you share more detail with us ?</span></div>
<div>That's a pity that we could not find any neutral heavy test out there.</div></div></div></blockquote><div><br></div><div>If you consider Ceph you should take a look at Ceph RBD not CephFS (<a href="http://ceph.com/docs/master/rbd/rbd/" target="_blank">http://ceph.com/docs/master/rbd/rbd/</a>). It is stable and works great for me.</div>
</div><div><br></div>-- <br>Maciej Gałkiewicz<br>Shelly Cloud Sp. z o. o., Sysadmin<br><a href="http://shellycloud.com/" target="_blank">http://shellycloud.com/</a>, <a href="mailto:macias@shellycloud.com" target="_blank">macias@shellycloud.com</a><br>
KRS: 0000440358 REGON: 101504426
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