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<p>Overkill - not really. The calculations show I need at least 16G
(its currently using ~11G). I was using an odroid-n2 with 4G ram
- slowed to a crawl when it hit swap and eventually crashed. I
moved the master to a much more powerful intel server with 32mb
and it has crashed once but I was hammering it (graphs show it ran
out of ram - need to check if the OOM is disabled on that one).
Cheats like moving swap and the mfs directories to a usb3
connected SSD helped (4-5 times faster than an SD card), but
eventually fell short.<br>
</p>
<p>I have 10 disks (~26Tb) spread across 5, soon to be 6 low power
odroids and an intel atom. The problem came when I put two copies
of 20+ years email (millions of smallish files) on it and then
reconfigured the mail server to use one copy. Yes, I know
...self inflicted! But it did work for a few days! :)<br>
</p>
<p>There are some guide calculations on the moosefs website that
match what I am seeing for usage and support why I want at least
32G. There are still some shortcuts I could use (go back to
putting the small files in a qemu virtual disk) but that had its
own issues. I see some emails on the moosefs website about
masters with hundreds of G ram!<br>
</p>
<p>billK</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 22/11/19 10:53 am, Benjamin wrote:<br>
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<blockquote type="cite"
cite="mid:CAGwEZWLe3hmY3sRM3UdiOZkQ0Opc9Umt2tAFF8d2DaY82To26g@mail.gmail.com">
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<div dir="ltr">Hi Bill,
<div><br>
</div>
<div>32GB of RAM is almost certainly overkill for a MooseFS
master - what kind of files are you planning to store?<br>
<br>
~ B</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Nov 22, 2019 at 10:50
AM Bill Kenworthy <<a href="mailto:billk@iinet.net.au"
moz-do-not-send="true">billk@iinet.net.au</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br>
<br>
I am looking for an SBC that can take 32gb ram, has a SATA
(or<br>
mSATA) connection and 1g networking - prefer ARM based and
Linux<br>
friendly. So far there is only the odroid-H2 (intel) that
seems to be at<br>
a reasonable cost - but is there anything else out there
that's<br>
comparable? Use is for a moosefs master server so I don't
need a super<br>
fast processor, HDMI, media or fancy features.<br>
<br>
BillK<br>
<br>
<br>
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