inSync Private Cloud 5.2 - inSync Help - Druva

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inSync 5.2 Private Cloud – Administrator’s Guide Storage Health The health of a storage indicates its availability to inSync for storing data. A storage is considered to be healthy as long as it is available for inSync to store data. If inSync cannot store data on a storage, or transact with the inSync database, the storage is considered to be unhealthy. There are many reasons for a storage to become unhealthy. The storage folders could have been deleted, or the media on which the storage was created could have been disconnected from the inSync Server. A storage is also indicated to be unhealthy if the backup or restore process on the storage is interrupted. User Quota Quota is defined as the maximum data a user can back up or share at any instant. To understand quota, consider a user who has two laptops. From the first laptop, all files from the My Documents folder is being backed up. From the second laptop, all files from Desktop is being backed up. inSync Share functionality is enabled for the user. Therefore, both laptops have an inSync Share folder. For successful backups and share, the sum of all files in the My Documents, Desktop, and inSync Share folder must be less or equal to the quota assigned to the user. If the sum exceeds the quota assigned, backups and share will fail. Note: While calculating the sum, inSync Share folder is considered only once irrespective of the number of devices assigned to the user. Storage Compaction Storage compaction is the removal of expired data from a storage to condense the existing archive and make space for new data. On inSync storages, compaction is run daily. Compaction is a time consuming process. The time required for compaction increases with the increase in the amount of data in the storage. Compaction is a resource intensive process. As an administrator, you can select the time and duration during which compaction is carried out every day. It is recommended that once every week you carry out compaction of a storage for a longer duration than the daily compactions. For example, you can schedule daily compactions to start at midnight and last for 6 hours. You also schedule a weekly 64
inSync 5.2 Private Cloud – Administrator’s Guide compaction that starts every Saturday at midnight and lasts for 36 hours. The longer duration of the weekly compaction ensures that any data that is missed during the shorter daily compactions is condensed. Data Deduplication Data deduplication is a specialized data compression technique for eliminating duplicate copies of repeating data. In inSync, data deduplication happens at file level as well as the much granular block level. Because of data deduplication, the actual disk space occupied on a storage is much less than if the same data was stored without deduplication. This disk savings is indicated by dedupe ratio. A 1:2.36 dedupe ratio indicates that if deduplication was not done, 2.36 times the current disk space would be required in the storage for the backed up data . Primary and Secondary Storages In inSync Private Cloud, you can create two types of storages - primary and secondary. A secondary storages acts as a standby for the primary storage to which it is linked. If the primary storage is down for some reason, the secondary storage takes over ensuring seamless backup and restore experience for the users. Primary and secondary storages have a 1:1 relationship. For more information, see About High Availability. 65
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inSync Private Cloud 5.2 - inSync Help - Druva

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