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Prerequisites

1. DPOD All-In-One appliance or non-appliance mode.

2. The system and app disks should support data redundancy (RAID in physical servers or central storage systems).

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1. Perform backup periodically or snapshots of all the system and app disks as described in table 1 below .

2. In some cases, data disks cannot be backed up i.e. due to Store data sizes. backup everything but the /data disks.

3. To restore, restore everything from the backup, make sure to have the same IP address, execute the required commands…

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1. Restore all the system and app disks as described in table 1 below .

2. If applicable restore /data disk or follow the steps in “create new data disk” section below.

3. Stop and start all the services using Command Line Interface (CLI).

Create New Data Disk

Non Appliance Mode

Please consult your system admin on how to add a new disk for /data mount point as described in Prepare Pre-Installed Operating System.
When done follow the steps in “Prepare /data for Application Use” section below.

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1. Recreate directory structure by running the following commands:

   Code Block
   language bash
   mkdir -m 755 -p /data/aggregatorAgents mkdir -m 755 -p /data/backups mkdir -m 755 -p /data/balancerAgents mkdir -m 755 -p /data/es-raw-trans mkdir -m 755 -p /data/keepalive mkdir -m 755 -p /data/Logical-Trans mkdir -m 755 -p /data/opensearch-dashboards mkdir -m 755 -p /data/reports mkdir -m 755 -p /data/reports/alerts-internal mkdir -m 755 -p /data/reports/reports-internal mkdir -m 755 -p /data/resources mkdir -m 755 -p /data/retention mkdir -m 755 -p /data/syslogAgents mkdir -m 755 -p /data/ui mkdir -m 755 -p /data/wsmAgents mkdir -m 755 -p /data/wsmAgents-internal-data chown /data/es-raw-trans --reference=/app/opensearch_nodes

2. Start only the store services using app-utils.sh Command Line Interface (CLI).

3. Recreate store security indices, run the following command and make sure it ends with the message Done with success.

   Code Block
   language bash
   /app/opensearch_base/plugins/opensearch-security/tools/securityadmin.sh \ -cd /app/opensearch_base/plugins/opensearch-security/securityconfig \ -icl -nhnv -cacert /app/keys/store/dpod-es-ca-cert.pem \ -cert /app/keys/store/dpod-es-admin-cert.pem -key /app/keys/store/dpod-es-admin-key.pem \ -h montier-es --accept-red-cluster

   start all services with app-utils.sh

Table 1 - File Systems / Mount Points

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