| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="ts_sol-host-zfs">
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| 4 | <title>Cannot Start VM, Not Enough Contiguous Memory</title>
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| 5 |
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| 6 | <body>
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| 7 | <p>
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| 8 | The ZFS file system is known to use nearly all available RAM as
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| 9 | cache if the default system settings are not changed. This may
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| 10 | lead to a heavy fragmentation of the host memory preventing
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| 11 | <ph conkeyref="vbox-conkeyref-phrases/product-name"/> VMs from being started. We recommend to limit the
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| 12 | ZFS cache by adding the following line to
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| 13 | <filepath>/etc/system</filepath>, where
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| 14 | <varname>xxxx</varname> bytes is the amount of memory
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| 15 | usable for the ZFS cache.
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| 16 | </p>
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| 17 | <pre xml:space="preserve">set zfs:zfs_arc_max = xxxx</pre>
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| 18 | </body>
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| 19 |
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| 20 | </topic>
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