<div dir="ltr"><div>After much research, I have decided to NOT implement ZFS. The main factors of interest were the raidz2 and data deduplication. In order to support the deduplication,the server needs 5G RAM per 1TB storage. That's a deal breaker right there as the system to be used will only support 32G and has 50TB. Raidz2 is basically software RAID6 which I can already do.<br>
<br></div>Looked at getting an SSD for the deduplication data and using l2arc but I have no space to install it on that server. Grr.<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Mar 29, 2013 at 3:10 PM, Ed Cashin <span dir="ltr"><<a href="mailto:ecashin@noserose.net" target="_blank">ecashin@noserose.net</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"><div><div>Thanks in advance for the notes you take. I'm interested to hear what you find.<br><br></div>
By the way, work sent me to a Nexenta course in 2010 where I learned ZFS stuff from Richard Elling:<br>
<br> <a href="http://www.richardelling.com/" target="_blank">http://www.richardelling.com/</a><br><br></div>... and one thing that kept coming up is how users usually reach for the RAID-Z options when stripes of mirrors would perform better and offer more flexibility. I thought that was notable.<br>
<br></div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div class="h5">On Fri, Mar 29, 2013 at 2:44 PM, Jim Kinney <span dir="ltr"><<a href="mailto:jim.kinney@gmail.com" target="_blank">jim.kinney@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">There was an update to this that just hit /.<br><br>WooHoo!<br><br>I have not used ZFS (minimal solaris experience) before but I have a situation where raidz looks like a very good choice. An external 16 bay JBOD box hanging off a SAS HBA looks like a prime candidate. The big issue for me is the support for native NFSv4 ACLs which solves some issues.<br>
<br>As I go through this exercise, I'll keep some notes and maybe look at a presentation on doing this.<br><br>hints, gotcha's, are very welcome.<br><br>I did find a pdf of the zfsadmin.pdf <a href="http://pdfhome.org/zfsadmin.pdf" target="_blank">http://pdfhome.org/zfsadmin.pdf</a><span><font color="#888888"><br clear="all">
<br>-- <br>-- <br>James P. Kinney III<br><i><i><i><i><br></i></i></i></i>Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.<br>
- Speech 11/23/1900 Mark Twain<br><i><i><i><i><br><a href="http://electjimkinney.org" target="_blank">http://electjimkinney.org</a><br><a href="http://heretothereideas.blogspot.com/" target="_blank">http://heretothereideas.blogspot.com/</a><br>
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<br></blockquote></div><span class="HOEnZb"><font color="#888888"><br><br clear="all"><br>-- <br> Ed Cashin <<a href="mailto:ecashin@noserose.net" target="_blank">ecashin@noserose.net</a>><br> <a href="http://noserose.net/e/" target="_blank">http://noserose.net/e/</a><br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>-- <br>James P. Kinney III<br><i><i><i><i><br></i></i></i></i>Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.<br>
- Speech 11/23/1900 Mark Twain<br><i><i><i><i><br><a href="http://electjimkinney.org" target="_blank">http://electjimkinney.org</a><br><a href="http://heretothereideas.blogspot.com/" target="_blank">http://heretothereideas.blogspot.com/</a><br>
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