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Druva Documentation

About storage

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    16:09, 22 Mar 2017
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Structure of an inSync storage

inSync supports the creation of two types of storage: file store and object store.

  • A file store uses a data store for storing data that inSync backs up from user devices. In a data store, deduplicated data is stored in data volumes.
  • An object store uses a swift store for storing data that inSync backs up from user devices. In an object store, deduplicated data is stored as objects within the OpenStack Swift object store deployed in the organization's data center.
  • Both file store and object store contain a database folder and database log folder. The database folder contains metadata information that inSync uses for data deduplication. The database log folder contains logs for all transactions that occur in the database folder. 

This document is for general guidance on the types of storage that are supported. However, inSync Storage with Object Store deployment varies based on API compatibility and other factors. To know whether your environment qualifies for Object Store deployment, contact Druva Support.

The following diagram explains the structure of both types of storage.

storagestructure.png


Difference between file store and object store

The following table lists the difference between file store and object store. 

Property File Store Object Store
Deduplicated data stored in... File system

Object store 

Note: inSync supports object store implemented with OpenStack Swift in conjunction with OpenStack Keystone only.
Increase storage capacity by... Adding up to 10 data volumes.

Increasing the size of the storage. 

Note: Before you increase the size of your object store, ensure that your hardware can support the updated size of your object store.
Maximum size 64 TB

64 TB

Note: A single implementation of Swift can contain multiple inSync storage. 
Support for storage pools Yes No

Guidelines for creating a storage

The following table lists the guidelines for creating a storage.

Folder Guideline
Data folder (for a file storage)
  • Create this folder on a local drive, storage area network (SAN), or a network-attached storage (NAS).
  • We recommend that you create the data folder on a separate disk.
  • Use RAID 5.
  • Block the folder from antivirus scans.
Note: For a backup to be successful, there must be at least 10 GB of free space on the storage data folder. inSync checks for this condition every 10 minutes and if it is not satisfied, ongoing backups are stopped and scheduled backups are put on hold. Backups do not start until you increase the free space to at least 50 GB.
Database folder
  • Create this folder on a local drive. Do not create this folder on a network or shared drive.
  • We recommend that you create the database folder on a separate disk. 
  • The disk, where the Database folder is located, must have at least 4 GB of free space.
  • If you have more than 1000 users backing up their data on the storage, create the database folder on a solid state drive (SSD).
  • Use RAID 10 or RAID 1. Do not use RAID 4, RAID 5, or RAID 6.
  • Block the folder from antivirus scans.
Database log folder
  • Create this folder on a local drive. Do not create this folder on a network or shared drive.
  • We recommend that you create the folder on a separate disk.
  • The disk, where the Database log folder is located, must have at least 4 GB of free space.
  • Use RAID 1.
  • Block the folder from antivirus scans.
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