{"id":1340,"date":"2014-01-28T01:26:37","date_gmt":"2014-01-28T00:26:37","guid":{"rendered":"http:\/\/evemaps.dotlan.net\/blog\/?p=1340"},"modified":"2014-01-28T02:44:06","modified_gmt":"2014-01-28T01:44:06","slug":"thank-you","status":"publish","type":"post","link":"https:\/\/evemaps.dotlan.net\/blog\/2014\/01\/28\/thank-you\/","title":{"rendered":"Thank you"},"content":{"rendered":"<p>Couple days we reached my 100% goal for the donation drive (1.500\u20ac). The EVE Online community is really the best and I&#8217;ll try to do my best to provide a useful and stable service. In the mean time I&#8217;ve already ordered my replacement drives, ssds, etc and even opted to get more RAM\u00a0(all ~2.500\u20ac). More memory is always better, ZFS loves more memory and it provides me more flexibility when playing around with other virtual servers.<\/p>\n<p>In the beginning I&#8217;ve asked for opinions regarding the storage solution. At this point I was about 90% sure that I&#8217;ll go with the hardware raid controller (which I had experience with) and some SAS drives. But you all and some friends poked me in my back and pointed me into a different direction. ZFS! I&#8217;ve had used ZFS at work multiple times but always in combination with Solaris. ZFSonLinux has left a bad taste in my mind due to its first linux introduction zfs-fuse) and the license issue (the reasons why zfs is not part of the official kernel). The more I was reading and researching about performance tuning, integrity and features the more I felt comfortable with it. And not having to buy the 600\u20ac HW Raid Controller offered me the possibility to buy more SSDs which I could use as ZIL\/SLOG (write-log for sync) and L2ARC (Read Cache) to speed up the overall performance of the storage.<\/p>\n<p>As mentioned yesterday on twitter: I got everything prepared and within 1.5 hours I could swap out the drives, insert the controller, do the cabling and do some basic tests. The migration of the storage itself is\/was something that I wanted to do later after I&#8217;ve tested everything. Apart from some minor issues (not all of the ram got recognized (again, more on this later) and forgot to check the system clock) it all went smooth.<\/p>\n<p><!--more-->For the hardware geeks here&#8217;s want I ended up with:<\/p>\n<ul>\n<li>4x 1TB SAS drives (2 Vendors, 2x WD1002FBYS, 2x \u00a0ST1000NM0023) with raidz2 (raid6)<\/li>\n<li>1x IBM ServeRaid M1015 (LSI2008 based Controller with IT Firmware)<\/li>\n<li>4x 100GB Intel DC S3700 SSD (2x for ZIL\/SLOG write log, 2x for L2ARC Cache)<\/li>\n<li>2x Kingston 30GB SSD (to seperate KVM\/Hypervisor and Storage)<\/li>\n<li>96GB DDR3 RAM (6&#215;16 max what the mainboard currently support atm)<\/li>\n<\/ul>\n<p>As mentioned earlier it&#8217;s a bit frustrating: Before the upgrade I had 32GB RAM (4&#215;8) inserted and only 24 GB were usable cause one module wasn&#8217;t detected. After I replaced the modules with a full set of 6x16GB mods the failure came up again sometimes 1 sometimes 2 modules weren&#8217;t correctly detected. This only tells me that there might be an issue (which I already had back in 2011) with the mainboard dimm slot since I own it. It&#8217;s still enough RAM to go, play with and make the databases and ZFS happy, but It don&#8217;t feel right. At least it&#8217;s nothing you&#8217;ve to worry about, it&#8217;s just me grumble about it \ud83d\ude42<\/p>\n<p>So what is left to do? Migrate data!<\/p>\n<p>While I&#8217;ve already done some tests and migrated some smaller test and dev servers over to the their new home, the main part is still missing: the evemaps server. I&#8217;ll likely wait some time (12h-24h) to get get a baseline on how the other stuff is behaving and track how things like IOPS and disk latency are getting affected when I move evemaps over (which be another downtime for 30 minutes to move it over to the new drives).<\/p>\n<p>I just can&#8217;t be more then happy to be backed by such a cool community! Thank you! See you in Iceland in april\/may for #evefanfest 2014 \ud83d\ude42<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Couple days we reached my 100% goal for the donation drive (1.500\u20ac). The EVE Online community is really the best and I&#8217;ll try to do my best to provide a useful and stable service. In the mean time I&#8217;ve already ordered my replacement drives, ssds, etc and even opted to get more RAM\u00a0(all ~2.500\u20ac). More [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/evemaps.dotlan.net\/blog\/wp-json\/wp\/v2\/posts\/1340"}],"collection":[{"href":"https:\/\/evemaps.dotlan.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/evemaps.dotlan.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/evemaps.dotlan.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/evemaps.dotlan.net\/blog\/wp-json\/wp\/v2\/comments?post=1340"}],"version-history":[{"count":2,"href":"https:\/\/evemaps.dotlan.net\/blog\/wp-json\/wp\/v2\/posts\/1340\/revisions"}],"predecessor-version":[{"id":1342,"href":"https:\/\/evemaps.dotlan.net\/blog\/wp-json\/wp\/v2\/posts\/1340\/revisions\/1342"}],"wp:attachment":[{"href":"https:\/\/evemaps.dotlan.net\/blog\/wp-json\/wp\/v2\/media?parent=1340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/evemaps.dotlan.net\/blog\/wp-json\/wp\/v2\/categories?post=1340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/evemaps.dotlan.net\/blog\/wp-json\/wp\/v2\/tags?post=1340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}