|
32 | 32 | <listitem><para>The Management Server loses heartbeat from a Host for more than 3 minutes</para></listitem> |
33 | 33 | <listitem><para>The Host cluster runs low on CPU, memory, or storage resources</para></listitem> |
34 | 34 | </itemizedlist> |
35 | | - |
| 35 | + <section id="xs-hotfix-notification"> |
| 36 | + <title>XenServer Hotfix Notification</title> |
| 37 | + <para>The Alerts area of the Dashboard in the &PRODUCT; UI shows notifications about new |
| 38 | + Citrix XenServer software updates as they become available. In this way, administrators |
| 39 | + can more easily be aware and take action when a hotfix is required to keep the XenServer |
| 40 | + hypervisor hosts up to date. &PRODUCT; gives notification only for hotfixes that are |
| 41 | + applicable to the XenServer software version currently running on hosts within the |
| 42 | + cloud. Before generating the alert, &PRODUCT; checks to be sure the hotfix has not |
| 43 | + already been installed.</para> |
| 44 | + <para>In addition to the alert in the Dashboard, all hotfixes available for XenServer hosts |
| 45 | + in the cloud are displayed under Events, when you open the Select View dropdown and |
| 46 | + choose Host Updates. You can also see the hotfixes available for a given host when |
| 47 | + you're viewing the host details (Infrastructure > Hosts > click host name), where you |
| 48 | + will see the Updates tab. </para> |
| 49 | + <para>You can get the same information about new XenServer hotfixes by calling these API |
| 50 | + commands:</para> |
| 51 | + <itemizedlist> |
| 52 | + <listitem> |
| 53 | + <para><emphasis role="bold">listHostUpdates</emphasis>—Tells which patches have and |
| 54 | + have not been applied to a given host</para> |
| 55 | + </listitem> |
| 56 | + <listitem> |
| 57 | + <para><emphasis role="bold">listHostsWithPendingUpdates</emphasis>—Tells which hosts |
| 58 | + have not received a given patch</para> |
| 59 | + </listitem> |
| 60 | + </itemizedlist> |
| 61 | + <para>&PRODUCT; checks for new hotfixes once a week. It can be configured to check for |
| 62 | + hotfixes more or less often through the global setting update.check.interval.</para> |
| 63 | + <para>&PRODUCT; knows where to find the web-based Citrix feed for XenServer hotfix updates. |
| 64 | + In the unlikely event that Citrix changes this URL, it can be configured through the |
| 65 | + global setting xen.update.url. You can also turn off the hotfix notification feature |
| 66 | + entirely using host.updates.enable.</para> |
| 67 | + </section> |
36 | 68 | </section> |
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