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PowerProtect DD9400 System Installation and Storage Expansion Guide

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Configure storage tier pages

The configure storage tier pages enable you to configure storage for each licensed tier on the system, Active Tier, Cache Tier, and Cloud Tier. Each tier has a separate wizard page. The storage tier configuration pages cannot be accessed through the wizard if the file system is already created.

Systems that use 8 TB disks for Active Tier storage require a certain number of disks installed in the disk shelves in order to configure Active Tier and Cloud Tier storage. The disk requirements are:

NOTE:
  • Systems that are not listed in this table do not support 8 TB disks, and are not subject to this requirement.
  • 8 TB drives are for Active Tier storage only. Cloud Tier storage uses 4 TB drives.
  • Cloud Tier metadata storage requirements are set based on the supported Cloud Tier capacity of the system, they do not scale based on capacity usage.
  • Systems without Cloud Tier do not require 4TB disk packs for Cloud Tier metadata storage.
Table 1. System disk pack requirementsSystem disk pack requirements
System Minimum 8 TB disk packs required for Active Tier (number of disks) 4 TB disk packs required for Cloud Tier metadata (number of disks)
DD9400 4 packs (60 disks) 4 packs (60 disks)

Configure Active Tier

The Configure Active Tier section allows you to configure the Active Storage Tier devices. The Active Tier is where back up data resides. To add storage to the Active Tier, select one or more devices and add them to the tier. You can add storage devices up to the capacity licenses installed.

Table 2. Addable StorageActive Tier Addable Storage
Item Description
ID The disk identifier, which can be any of the following.
  • The enclosure and disk number (in the form Enclosure Slot, or Enclosure Pack for DS60 and DS600 shelves)
  • A device number for a logical device such as those used by DD VTL and vDisk
  • A LUN
Disks The disks that comprise the disk pack or LUN.
Model The type of disk shelf.
Disk Count The number of disks in the disk pack or LUN.
Disk Size The data storage capacity of the disk.1
Failed Disks Failed disks in the disk pack or LUN.
Table 3. Active Tier valuesActive Tier values
Item Description
ID The disk identifier, which can be any of the following.
  • The enclosure and disk number (in the form Enclosure Slot, or Enclosure Pack for DS60 and DS600 shelves).
  • A device number for a logical device such as those used by DD VTL and vDisk
  • A LUN
Disks The disks that comprise the disk pack or LUN.
Model The type of disk shelf.
Disk Count The number of disks in the disk pack or LUN.
Disk Size The data storage capacity of the disk.2
Failed Disks Failed disks in the disk pack or LUN.
Configured New or existing storage.

Configure Cache Tier

The Configure Cache Tier section allows you to configure the Cache Storage Tier devices. The Cache Tier is where metadata cached with the Metadata on Flash feature resides. To add storage to the Cache Tier, select one or more devices and add them to the tier. You can add storage devices up to the capacity licenses installed.

NOTE: DD6900, DD9400, and DD9900 systems do not require a license for Cache Tier storage.
Table 4. Addable StorageCache Tier Addable Storage
Item Description
ID The disk identifier, which can be any of the following.
  • The enclosure and disk number (in the form Enclosure Slot, or Enclosure Pack for DS60 and DS600 shelves)
  • A device number for a logical device such as those used by DD VTL and vDisk
  • A LUN
Disk Size The data storage capacity of the disk.3
Type SAS-SSD
Table 5. Cache Tier valuesCache Tier values
Item Description
ID The disk identifier, which can be any of the following.
  • The enclosure and disk number (in the form Enclosure Slot, or Enclosure Pack for DS60 and DS600 shelves).
  • A device number for a logical device such as those used by DD VTL and vDisk
  • A LUN
Disk Size The data storage capacity of the disk.4
Type SAS-SSD
Configured New or existing storage.

Configure Cloud Tier

The Configure Cloud Tier section allows you to configure the Cloud Storage Tier devices. To add storage to the Cloud Tier, select one or more devices and add them to the tier. You can add storage devices up to the capacity licenses installed.

Table 6. Addable StorageCloud Tier Addable Storage
Item Description
ID The disk identifier, which can be any of the following.
  • The enclosure and disk number (in the form Enclosure Slot, or Enclosure Pack for DS60 and DS600shelves)
  • A device number for a logical device such as those used by DD VTL and vDisk
  • A LUN
Disks The disks that comprise the disk pack or LUN.
Model The type of disk shelf.
Disk Count The number of disks in the disk pack or LUN.
Disk Size The data storage capacity of the disk.5
License Needed The licensed capacity required to add the storage to the tier.
Failed Disks Failed disks in the disk pack or LUN.
Table 7. Cloud Tier valuesCloud Tier values
Item Description
ID The disk identifier, which can be any of the following.
  • The enclosure and disk number (in the form Enclosure Slot, or Enclosure Pack for DS60 and DS600 shelves).
  • A device number for a logical device such as those used by DD VTL and vDisk
  • A LUN
Disks The disks that comprise the disk pack or LUN.
Model The type of disk shelf.
Disk Count The number of disks in the disk pack or LUN.
Disk Size The data storage capacity of the disk.6
License Used The licensed capacity consumed by the storage.
Failed Disks Failed disks in the disk pack or LUN.
Configured New or existing storage.

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