After performing Appliance restore on SDX - SVM
Configuration > Management Service > Backup Files > Restore > Appliance Restore
Customer may found SVM network configurations and hostname were not restored.

For SVM Network configuration restore:
As not restoring network configuration on SVM is a by-design behavior, if you'd like to find the old network configurations such as IP, Netmask, Gateway, DNS etc, please find the configuration from back up files.
Extract the backup files to a folder naming as "backup", then try find the configuration from resources.xml.
/backup$ xmllint --format resources.xml | more
Then find the settings from the following elements
<current_hostname JSON="{ &quot;hostname&quot;: &quot;ctxsdxhost01&quot; }"/>
<current_timezone JSON="{ &quot;timezone&quot;: &quot;UTC+0800 CST Asia\/Shanghai&quot; }"/>
…
  <sdx_network_config JSON="{
&quot;dns&quot;: &quot;10.0.0.1&quot;,
&quot;gateway&quot;: &quot;10.1.2.3&quot;,
&quot;actual_network_interface&quot;: &quot;0\/1&quot;,
&quot;svm_ipv6_address&quot;: &quot;&quot;,
&quot;additional_dns2&quot;: &quot;&quot;,
&quot;additional_dns1&quot;: &quot;&quot;,
...
&quot;svm_ip_address&quot;: &quot;10.1.2.153&quot;,
&quot;gateway_ipv6&quot;: &quot;&quot;,
...
&quot;xen_ip_address&quot;: &quot;10.1.2.253&quot;, ...

For hostname restore:
Upgrade to 12.1_58+ the issue could be solved.
As a workaround you can find the old hostname configuration from the resources.xml file that mentioned above.

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Problem Cause

• For SVM Network configuration restore:

• For hostname restore:

SVM doesn't recover Network configuration, and hostname restore failed is a known issue that have been fixed in SDX 12.1_58+