About NetBackup Flex Scale storage
NetBackup Flex Scale supports the following types of storage for each node. The type of storage might differ based on the hardware vendor platform.
The following table shows the storage for HPE vendor platform:
Device type | Number of devices per node | Used for |
|---|---|---|
SATA SSD | 2 | Operating system and logs |
SATA SSD | 1 | Certificates |
NVMe SSD | 2 | NetBackup primary server catalog, which contains the internal databases that include information about NetBackup backups and configuration, Media Server Deduplication Pool (MSDP) catalog, and Data Change Object (DCO) for erasure-coded volumes |
14-TB HDDs | 12 | Deduplicated backup data, Media file system, primary log file system, and scratch space for the MSDP catalog |
The following table shows the storage for Dell vendor platform:
Device type | Number of devices per node | Used for |
|---|---|---|
NVMe SSD | 4 | Operating system and NetBackup primary server catalog, which contains the internal databases that include information about NetBackup backups and configuration, Media Server Deduplication Pool (MSDP) catalog, and Data Change Object (DCO) for erasure-coded volumes |
8-TB and 12-TB HDDs | 12 | Deduplicated backup data, Media file system, primary log file system, and scratch space for the MSDP catalog |
The following table shows the file systems and their layout:
File system | Layout | Device type |
|---|---|---|
NetBackup primary catalog | Striped-mirror or mirrored | SSD |
MSDP catalog | Striped-mirror or mirrored | SSD |
MSDP data | Erasure-coded | HDD |
Scratch space | Erasure-coded | HDD |
Media | Erasure-coded | HDD |
primary log | Erasure-coded | HDD |
The scratch file system grows each time you add a node. The NetBackup primary server and the MSDP catalog file systems grow to double the size when you add the sixth node to the cluster. The NetBackup primary server and the MSDP catalog file systems grow when you add the 6th, 9th, 12th or the 15th node to the cluster.
A new MSDP data file system is created for each new node that is added to the cluster. The number of MSDP data file systems is equal to the number of nodes in the cluster.
You can view the total usable capacity and used storage on the NetBackup Flex Scale dashboard. The dashboard is displayed when you sign in to the NetBackup Flex Scale web interface using the https://ManagementServerIPorFQDN:14161 URL where ManagementServerIPorFQDN is the public IP address that you specified for the NetBackup Flex Scale management server and API gateway during the cluster configuration; or when you click in the left navigation pane of the UI. From the Dashboard you can navigate to more detailed information. For example, under Storage, click to view the used storage, storage pool the disk is allocated to, and the disk size for each of the disks.
You can also use the following REST APIs to view the storage details:
GET /api/appliance/v1.0/storage/filesystems
GET /api/appliance/v1.0/storage/filesystems/{fsName}GET /api/appliance/v1.0/storage/clusters/{clusterId}/storage-utilised
If the storage usage exceeds 90% of the total available storage, the following alert is generated:
Netbackup file system [fs name] usage is above 90%
To clear or respond to the alert, you can free the used space or add more nodes to increase the storage.
To view alerts, do one of the following:
Click in the left pane of the NetBackup Flex Scale UI. In the Alerts area, click to see a complete list of alerts.
At the top of any screen, click the icon.
Click . On the page, use the filters to locate specific types of alerts.