<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, Sans-Serif;font-size:12pt"><div><span>thanks for reply Cedric</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span>what does swift do for adding more devices as storage node?</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span>how does swift abstract storage from the devices?</span></div><div
style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span>And how swift recognise whether there is free space on a particular storage node to store data?</span></div><div class="yahoo_quoted" style="display: block;"> <br> <br> <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 12pt;"> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> On Sunday, 2 February 2014 4:23 PM, Cédric Lemarchand <c.lemarchand@yipikai.org> wrote:<br> </font> </div> <blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div class="y_msg_container"><div id="yiv6184406141"><div><div>As of my comprehension and the way you ask, swift
didn't "virtualize" the storage, there are no layer between the swift stack and final storage. The back end are simple FS (ext4 or xfs, or else) on which data are stored (replicated x times/check summed ect ...). Of course the objects are not stored "as is", like on a simple file server. </div><div><br clear="none"></div><div>Cheers<br clear="none"><br clear="none">--<div>Cédric Lemarchand</div></div><div><br clear="none">Le 2 févr. 2014 à 10:37, pragya jain <<a rel="nofollow" shape="rect" ymailto="mailto:prag_2648@yahoo.co.in" target="_blank" href="mailto:prag_2648@yahoo.co.in">prag_2648@yahoo.co.in</a>> a écrit :<br clear="none"><br clear="none"></div><div class="yiv6184406141yqt9049586173" id="yiv6184406141yqt98623"><blockquote type="cite"><div><div style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size:
12pt;"><div><span>I am not talking about cinder.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span>My question is:</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span>Openstack swift provides storage as a service to the user so that user can store their data offline.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span>when a
user store some data on swift using Object PUT command, data is stored as an object at some storage node.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;">1. What is this storage node - Is it a physical hard disk?</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;">2. to store the data, Is swift virtualize the physical storage or directly store the data on physical disk?</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;">3. Is there any need of storage virtualization in swift?</div><div style="color: rgb(0,
0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><br clear="none"></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;">Thanks </div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;">Pragya Jain</div><div class="yiv6184406141yahoo_quoted" style="display: block;"> <br clear="none"> <br clear="none"> <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 12pt;"> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt;"> <div dir="ltr"> <font size="2"
face="Arial"> On Sunday, 2 February 2014 11:55 AM, Aryeh
Friedman <<a rel="nofollow" shape="rect" ymailto="mailto:aryeh.friedman@gmail.com" target="_blank" href="mailto:aryeh.friedman@gmail.com">aryeh.friedman@gmail.com</a>> wrote:<br clear="none"> </font> </div> <blockquote style="border-left:2px solid rgb(16, 16, 255);margin-left:5px;margin-top:5px;padding-left:5px;"> <div class="yiv6184406141y_msg_container"><div id="yiv6184406141"><div><div dir="ltr">You mean you need to access cinder or are you wondering what component handles storage (cinder then is the answer)<br clear="none"></div><div class="yiv6184406141gmail_extra"><br clear="none"><br clear="none"><div class="yiv6184406141gmail_quote">On Sun, Feb 2, 2014 at 1:02 AM, pragya jain <span dir="ltr"><<a rel="nofollow" shape="rect" ymailto="mailto:prag_2648@yahoo.co.in" target="_blank" href="mailto:prag_2648@yahoo.co.in">prag_2648@yahoo.co.in</a>></span> wrote:<br clear="none">
<blockquote class="yiv6184406141gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="yiv6184406141yqt4624632340" id="yiv6184406141yqt98703"><div><div style="font-size: 12pt; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;"><div>
hi all</div><div><br clear="none"></div><div style="font-style: normal; font-size: 16px; background-color: transparent; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;">my query is:</div>
<div style="font-style: normal; font-size: 16px; background-color: transparent; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;"><br clear="none"></div><div style="font-style: normal; font-size: 16px; background-color: transparent; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;">
Is openstack swift virtualize the storage to store the data?</div><div style="font-style: normal; font-size: 16px; background-color: transparent; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;">
And how does openstack swift implement it?</div><span class="yiv6184406141HOEnZb"><font color="#888888"></font></span><div style="font-style: normal; font-size: 16px; background-color: transparent; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;">
<br clear="none"></div><div style="font-style: normal; font-size: 16px; background-color: transparent; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;">Pragya Jain</div></div>
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<br clear="none"></blockquote></div><br clear="none"><br clear="all"><br clear="none">-- <br clear="none"><div dir="ltr">Aryeh M. Friedman, Lead Developer, <a rel="nofollow" shape="rect" target="_blank" href="http://www.petitecloud.org/">http://www.PetiteCloud.org</a><br clear="none"></div>
</div></div></div><br clear="none"><br clear="none"></div> </blockquote> </div> </div> </div> </div></div></blockquote></div><blockquote type="cite"><div><span>_______________________________________________</span><br clear="none"><span>Mailing list: <a rel="nofollow" shape="rect" target="_blank" href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack</a></span><br clear="none"><span>Post to : <a rel="nofollow" shape="rect" ymailto="mailto:openstack@lists.openstack.org" target="_blank" href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a></span><br clear="none"><span>Unsubscribe : <a rel="nofollow" shape="rect" target="_blank" href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack</a></span><br clear="none"></div></blockquote></div></div><br><br></div>
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