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SMTP is the most commonly configured alerting protocol. The following sections will explain how SMTP alerts work in OneFS as well as configuration considerations and best practices.
Figure 16 shows the high-level architecture of SMTP alerts. As explained in the Alert architecture, OneFS sends an SMTP message when cluster events occur, sending them through configured SMTP channels to the SMTP server configured. The SMTP server will forward the email and attachments to the subscriber email address.
In the message body of SMTP Alerts, the following key information will be included as listed in Table 6:
Information | Description |
Cluster information | Cluster information includes:
|
Node information | For some events, the problematic node will be listed. It is in the form of devid 1, devid 2 and so on which corresponds to node 1, node 2 and so on. |
Event information | Event information includes:
|
Attachment information | Attachment is used to provide further detailed information about the event. |
The general configuration for SMTP alerting requires the end user to provide the following information:
PowerScale OneFS supports using public SMTP servers for alert notification, but it does not support multifactor authentication or 2-step authentication. For details, see the knowledge base article: Email notifications not working through smtp.gmail.com.
SMTP alerts support encrypted communication between SMTP servers and PowerScale clusters which is a more secure and recommended way for SMTP alert configuration. However, in some releases of OneFS version 8, when the encryption is configured in the channel, SMTP event notification will fail. We suggest you open a ticket with the support center to resolve this issue. For detailed information, refer to SMTP event notification was failed when configured Alert channel manually with STARTTLS for connection security.