<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1467635040465_11922">Hi Gandalf</div><div id="yui_3_16_0_ym19_1_1467635040465_11923"><br></div><div id="yui_3_16_0_ym19_1_1467635040465_11924">Not suggesting really here but just mentioning what I am using: I am using an HBA adapter with 12 disks so basically JBOD but I am using ZFS and have an array of 12 disks in RAIDZ2 (sort of RAID6 but ZFS-style). I am pretty happy with that setup so far.</div><div id="yui_3_16_0_ym19_1_1467635040465_12499"><br></div><div>Cheers</div><div>ML<br></div><div id="yui_3_16_0_ym19_1_1467635040465_12471"><span></span></div> <div class="qtdSeparateBR"><br><br></div><div style="display: block;" class="yahoo_quoted"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font face="Arial" size="2"> On Monday, July 4, 2016 4:54 PM, Gandalf Corvotempesta <gandalf.corvotempesta@gmail.com> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv3024522601"><div><div dir="ltr">No suggestions ?</div>
<div class="yiv3024522601yqt0025751713" id="yiv3024522601yqtfd22029"><div class="yiv3024522601gmail_quote">Il 14 giu 2016 10:01 AM, "Gandalf Corvotempesta" <<a rel="nofollow" shape="rect" ymailto="mailto:gandalf.corvotempesta@gmail.com" target="_blank" href="mailto:gandalf.corvotempesta@gmail.com">gandalf.corvotempesta@gmail.com</a>> ha scritto:<br clear="none"><blockquote class="yiv3024522601gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Let's assume a small cluster made by 3 servers, 12 disks/bricks each.<br clear="none">
This cluster would be expanded to a maximum of 15 servers in near future.<br clear="none">
<br clear="none">
What do you suggest, a JBOD or a RAID? Which RAID level?<br clear="none">
<br clear="none">
15 servers with 12 disks/bricks in JBOD are 180 bricks. Is this an<br clear="none">
acceptable value?<br clear="none">
Multiple raid6 for each servers? In example, RAID-6 with 6 disks and<br clear="none">
another RAID-6 with the other 6 disks. I'll loose 4 disks on each<br clear="none">
servers, performance would be affected and rebuild times would be huge<br clear="none">
(by using 2TB/4TB disks)<br clear="none">
<br clear="none">
Any suggestions?<br clear="none">
</blockquote></div></div></div></div><br><div class="yqt0025751713" id="yqtfd30946">_______________________________________________<br clear="none">Gluster-users mailing list<br clear="none"><a shape="rect" ymailto="mailto:Gluster-users@gluster.org" href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br clear="none"><a shape="rect" href="http://www.gluster.org/mailman/listinfo/gluster-users" target="_blank">http://www.gluster.org/mailman/listinfo/gluster-users</a></div><br><br></div> </div> </div> </div></div></body></html>