View source for 4 4 3 Grolar:Configuring Si3 Deduplication Store

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{{Copyright SEP AG en}}

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{{Navigation_previous|link=[[Special:MyLanguage/Configuring_Si3_NG_Deduplication_Store|Configuring Si3 NG Deduplication Store]]}}</div></translate><br />
<translate>===Information about deduplication store types=== <!--T:3--></translate>
<div class="boilerplate metadata" id="Additional resources" style="background-color: #f0f0f0; color:#636f73; border: 1px ridge #cdd3db; margin: 0.5em; padding: 0.5em; float: right; width: 35%; "><center><b>
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Additional resources</translate></b></center>

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[[File:SEP_next.png|45px|link=http://www.sep.de/products/deduplication/deduplication-analysis/#_]]</translate>
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See also: [[Special:MyLanguage/5_0_0:Configuring_Si3_NG_Deduplication_Store|Configuring Si3 NG Deduplication Store]] – [[Special:MyLanguage/4_4_3:Configuring_and_Administering_Si3_Deduplication_Store_by_using_CLI|Configuring and Administering Si3 Deduplication Store by using CLI]] – [[Special:MyLanguage/Encrypting_Si3_Deduplication_Store|Encrypting Si3 Deduplication Store]] – [[Special:MyLanguage/Source_Side_Dedup|Configuring Source-side Deduplication]] – [[Special:MyLanguage/Replication|Replication]] – [[Special:MyLanguage/Seeding_Si3_Deduplication_Store|Seeding Si3 Deduplication Store]] – [https://www.sepsoftware.com/sep-sesam/si3-tachometer-analysis/ SEP Tachometer] – [[Special:MyLanguage/Licensing|Licensing]]</translate>
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| style="padding:0px 40px 0px 10px; color: grey; font-size: 90%; text-align:left;" |<translate><!--T:58--> Watch SEP sesam video [https://www.youtube.com/watch?v=sSkfmufQkXU Why and how to use Deduplication with SEP sesam].</translate>
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[[File:SEP Tip.png|45px|link=Special:MyLanguage/4_4_3_Beefalo:FAQ|FAQ]]</translate>
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Check [[Special:MyLanguage/4_4_3_Beefalo:FAQ|FAQ]] to find the answers to most common questions.</translate>
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[[File:SEP Troubleshooting.png|45px|link=Special:MyLanguage/Troubleshooting_Guide#Si3_Deduplication]]</translate>
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Problems? Check the [[Special:MyLanguage/Troubleshooting_Guide#Si3_Deduplication|Troubleshooting Guide]].</translate>
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<span style="color:gray; font-size: 90%"><translate> <!--T:66--> SEP sesam [[SEP sesam Release Versions|v. 5.0.0 Jaglion]] has introduced a new generation Si3 deduplication store: [[Special:MyLanguage/5_0_0:Configuring_Si3_NG_Deduplication_Store|Si3 NG]]. The Si3-related information differs slightly depending on which datastore is used: Si3 or Si3 NG. The procedures presented in this article apply only to the older type of SEP Si3 deduplication store, which is deprecated. To learn more about the new generation of Si3 NG, see [[Special:MyLanguage/5_0_0:Configuring_Si3_NG_Deduplication_Store#upgrade|Configuring Si3 NG Deduplication Store]].</translate></span>

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It is strongly recommended to use the newer type ''SEP Si3 NG deduplication store''. It offers significantly higher performance for backup, restore and migration, as well as 
[[Special:MyLanguage/5_0_0:Backup_to_S3_Cloud_Storage|backup to S3]] and [[Special:MyLanguage/5_0_0:Backup_to_Azure_Storage|backup to Azure]], the new [[Special:MyLanguage/5_0_0:SEP_Immutable_Storage_–_SiS|immutable storage feature ''SiS'']], resulting in improved performance, scaling, and resource savings. For details, see the [[Special:MyLanguage/4_4_3_Grolar:Configuring_Si3_Deduplication_Store#comparison|Si3 and Si3 NG comparison]] section below. <br />To learn how to upgrade from Si3 to Si3 NG by configuring a new Si3 NG on the same host and creating a replication job to replicate from Si3 to Si3 NG, see [[Special:MyLanguage/5_0_0:Configuring_Si3_NG_Deduplication_Store|Configuring Si3 NG Deduplication Store]].

==== Deprecated Si3 data store ==== <!--T:67--> 

</translate>[[File:information_sign.png|25px|link=]]<translate>
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The old generation Si3 deduplication store is deprecated. This means that the old generation Si3 is no longer being enhanced, but is still supported until further notice. '''SEP strongly recommends using the new Si3 NG data store instead, especially if the data is to be stored to S3 Cloud.''' 
*If you are using an old generation Si3 deduplication store with S3, you will not be able to restore from S3 via the GUI. 
*You can configure a new Si3 NG and an old Si3 in parallel on the same host and replicate from the old Si3 to the Si3 NG store. For details, see [[Special:MyLanguage/5_0_0:Configuring_Si3_NG_Deduplication_Store#upgrade|Configuring Si3 NG Deduplication Store]].

===Overview=== <!--T:60-->

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SEP sesam provides a target-based (Si3T) and [[Special:MyLanguage/Source_Side_Dedup|source-based deduplication (Si3S)]]. For details on deduplication concept and recommendations, see [[Special:MyLanguage/Deduplication|Deduplication]]. 

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Both, Si3T and Si3S require a configured Si3 deduplication store. Only one Si3 deduplication store can be configured on a server. A valid [[Special:MyLanguage/Licensing|licence]] is required for each Si3 deduplication store. Note that you can also configure an Si3 deduplication store by using a command line. For details, see [[Special:MyLanguage/4_4_3:Configuring_and_Administering_Si3_Deduplication_Store_by_using_CLI|Configuring and Administering Si3 Deduplication Store by using CLI]].  

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You can download ''SEP Tachometer'' to analyse the structure of your data and calculate potential savings with SEP sesam Si3 deduplication. Check [https://www.sepsoftware.com/sep-sesam/si3-tachometer-analysis/ SEP Tachometer].

=== {{anchor|prerequisites}}Prerequisites === <!--T:52-->   

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For the minimum Si3 hardware requirements that apply to SEP sesam Si3 deduplication server, see [[Special:MyLanguage/SEP_sesam_Requirements#hardware|Hardware requirements]]. Keep in mind that these requirements represent the demand for deduplication only. In addition, the amount of memory for the operating system and other services should be taken into account.

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In addition, the following prerequisites must be met to configure an Si3 deduplication store.</translate>
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The Si3 deduplication store only supports 64-bit versions of the following operating systems:-->

<!--* Windows 2008/2008 R2
* Windows 2012/2012 R2
* SLES 11/12
* RHEL 6/7
* Debian Wheezy/Jessie-->
<translate>====Additional RAM / CPU requirements==== <!--T:17--> 

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{{:Si3_Deduplication_Hardware_Requirements/en}}

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==={{anchor|steps}}Steps===
 
The SEP sesam [[Special:MyLanguage/4_4_3_Beefalo:Data_Store|data store]] is a disk based storage that enables savesets (backed-up data) to be backed up directly to the configured storage locations. SEP Si3 target deduplication is easy to configure and ready to use by selecting the '''Si3 deduplication store''' type.</translate>
<ol><li><translate><!--T:20-->
In the '''Main selection''' -> '''Components''', click '''Data Stores''' to display the data store contents frame.</translate>
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From the ''Data Stores'' menu, select '''New Data Store'''. A ''New Data Store'' dialog appears.</translate></li>
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Under the ''Data store'' properties in the '''Name''' field, enter a meaningful name for the Si3 data store.</translate></li>
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From the ''Store type'' drop-down list, select '''SEP Si3 Deduplication Store'''.
{{tip|As of SEP sesam v. [[Special:MyLanguage/SEP_sesam_Release_Versions|5.0.0 ''Jaglion'']], two Si3 data store types are available. SEP sesam recommends using the new generation Si3 NG when creating a new data store. To learn how to upgrade from Si3 to Si3 NG by configuring a new Si3 NG on the same host and creating a replication job to replicate from Si3 to Si3 NG, see [[Special:MyLanguage/5_0_0:Configuring_Si3_NG_Deduplication_Store|Configuring Si3 NG Deduplication Store]].}}</translate></li>
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[[image:New_Si3_data_store_Beefalo_V2.jpg|850px|link=]]</translate>
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Make sure that the option '''Create drive''' is checked under the ''Drive parameter'' properties. The predefined value for the drive is automatically inserted in the '''Drive number''' field.</translate></li>
<translate><!--T:55--> It is recommended that the option '''Create second drive''' is also enabled. Without it, SEP sesam can only allocate a drive for either reading or writing, running one job on the same drive at a time. By using the additional dedicated drive for restore, you can perform a backup on the first drive and restore your data from the second drive simultaneously. You can also add a third drive for migration.</translate>
<li><translate><!--T:30-->
Then select '''Create new drive group''' and '''enter the name''' for your Si3 deduplication store dedicated group.</translate></li>
<li><translate><!--T:31-->
The predefined number of channels is already displayed in the '''Max. channels''' drop-down list. The number of available channels depends on your SEP sesam Server package. For details on licensing, see [[Special:MyLanguage/Licensing|Licensing]].</translate></li>
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From the ''Device server'' drop-down list, select the '''device server''' for your data store.</translate></li>
<li><translate><!--T:27-->
In the '''Path''' field, '''enter the location''' of your data store or use the '''Browse''' button to select the relevant folder. '''Check''' the relevant folder and click '''OK'''.</translate>
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When using the ''Browse'' button to select the folder, the ''New Data Store'' information window appears with predefined recommended values for your Si3 deduplication store size. Click '''OK''' to confirm the selected location and recommended size values. You can modify your data store size later under the '''Size''' properties (see step 10).</translate></li>
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[[image:GUI_new_data_store_information_Beefalo_V2.jpg|430px|link=]]</translate>
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<li>
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Under the '''''Size''''' properties, specify or modify the following:</translate></li>
<ul><li><translate><!--T:33-->
'''''Capacity''''': Specify the size (in GiB) of the partition for backups.</translate></li>
<li><translate><!--T:34-->
'''''High watermark''''': Specify the value (in GiB) for the high watermark (HWM). The HWM defines the upper value for the used storage space. When this value is reached, the status of a datastore changes from ''OK'' to ''Warning'', but backups continue to be performed. Make sure that you provide enough storage space for your backed up data.</translate></li>
<li><translate><!--T:35-->
'''''Si3 repair area''''': Specify the value (in GiB) for the Si3 repair area. The Si3 repair area (subdirectory trash) defines space for Si3 files (DDLs) that were identified by a garbage collection job and are no longer used. These files are still kept in the repair area to enable possible repair of Si3 in case of structural problems (which may be caused by a file system error or an operating system crash)). The files in the repair area are automatically removed after the specified period of time (SEP sesam default: 4 days) or when or when the disk usage threshold is reached. Note that the Si3 repair function is disabled when the value is set to 0.</translate></li>
{{<translate><!--T:56--> note</translate>|<translate><!--T:57--> The ''Si3 repair area'' for managing disk space dedicated to Si3 files (DDLs) is only available in the [[Special:MyLanguage/SEP_sesam_Glossary#UI_mode|''Expert'' UI mode]]. So if you run the GUI in ''Basic'' or ''Advanced'' UI mode, you first have to change the mode to ''Expert'', as described in [[Special:MyLanguage/4_4_3_Beefalo:SEP_sesam_GUI#UI_mode|Selecting UI mode]].</translate>}}
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The '''Disk space usage''' properties are used by SEP sesam to report the following:</translate>
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'''''Used''''': Total used space (in GiB) on the partition.</translate>
<li><translate><!--T:38-->
'''''Total''''': Maximum available space (in GiB) on the partition as reported by the operating system.</translate>
<li><translate><!--T:39-->
'''''Free''''': Available disk space (in GiB) for SEP sesam.</translate>
<!--<li><translate><!--T:40-->
'''''Deduplication rate''''': Deduplication occurs once the backup process has started. SEP sesam analyses blocks of data and determines whether the data is unique or has already been copied to the Si3 data store. Only single instances of unique data are sent to the data store and replace each deduplicated file with a stub file. The deduplication rate is higher when there are ''copy'' and ''full'' backups and when there is a larger amount of data. The deduplication ratio is depicted as ''ratio:1''.</translate> (Where is it shown?)--></ul></ol>

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You can view the properties of your Si3 deduplication by double-clicking the corresponding Si3 deduplication store.</translate> 
{{anchor|drive}}<ul><li><translate><!--T:42-->
You can modify existing and set additional drive options by '''double-clicking the first drive'''. In the ''Drive Properties'' window, you can browse the path for the data store, set the [[Special:MyLanguage/4_4_3_Beefalo:Data_Store#access_mode|access mode for data store drives]], etc. To configure Si3 data encryption, you have to create a deduplication security password file. For details, see [[Special:MyLanguage/Encrypting_Si3_Deduplication_Store|Encrypting Si3 Deduplication Store]].<br /> Use the tab ''OS Access'' and specify the credentials to access the respective systems. Use <tt>DOMAIN\USER</tt> format for domain accounts or <tt>HOST\USER</tt> for local accounts.</translate></li>
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[[image:Si3_drive_properties_Beefalo_V2.jpg|800px|link=]]</translate>
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<translate>=== Monitoring deduplication status === <!--T:62-->

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You can view the status of your Si3 deduplication in the GUI by clicking the '''Si3 State''' tab. You can check the last deduplication message, the status of active tasks, the encryption status, the number of stored objects, the data size before/after deduplication, the dedup ratio, the saved storage space, etc.</translate>
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[[image:Si3_state_tab_Beefalo_V2.jpg|830px|link=]]</translate>
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{{<translate><!--T:63--> tip</translate>|<translate><!--T:64--> You can also check the status in [[Special:MyLanguage/5_0_0:SEP_sesam_Web_UI#data_store|SEP sesam Web UI]]. You can use the ''Dependencies'' tab to see the diagram of all dependencies of the datastore and drives, RDS, media pools, etc.,  and use other tabs to check the details of the data store operation.</translate>}}

{{<translate><!--T:46-->
note</translate>|<translate><!--T:47-->
If fsck (file system consistency check) detects an irregularity in the Si3 file system, the affected pages and chunks are recorded in <tt>recovery.log</tt>. The Si3 deduplication store in the GUI and ''Web UI''is highlighted in red and [[Special:MyLanguage/SEP_sesam_Glossary#Si3_purge|Si3 purge]] is no longer executed. The purge is stopped to prevent the files in the [[Special:MyLanguage/SEP_sesam_Glossary#repair_area|Si3 repair area]] from being deleted, as they may be needed to repair Si3 in case of problems. Once the errors are fixed and the <tt>recovery.log</tt> is empty, the Si3 data store is no longer marked in red and the Si3 purge works again.</translate>}}

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[[image:Si3_deduplication_store_red_Beefalo.jpg|810px|link=]]</translate>
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===What is next?===
After configuring the Si3 deduplication store, configure the [[Special:MyLanguage/Configuring_a_Media_Pool|media pools]] first then set up your [[Special:MyLanguage/4_4_3_Beefalo:Backup|backup ]] strategy.

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==={{anchor|comparison}}Comparison of Si3 and Si3 NG===
{{Si3_and_Si3_NG_comparison}}

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<div class="noprint">
=== See also ===
[[Special:MyLanguage/5_0_0:Configuring_Si3_NG_Deduplication_Store|Configuring Si3 NG Deduplication Store]] – [[Special:MyLanguage/4_4_3:Configuring_and_Administering_Si3_Deduplication_Store_by_using_CLI|Configuring and Administering Si3 Deduplication Store by using CLI]] – [[Special:MyLanguage/Encrypting_Si3_Deduplication_Store|Encrypting Si3 Deduplication Store]] – [[Special:MyLanguage/Source_Side_Dedup|Configuring Source-side Deduplication]] – [[Special:MyLanguage/Replication|Replication]] – [[Special:MyLanguage/Seeding_Si3_Deduplication_Store|Seeding Si3 Deduplication Store]] – [https://www.sepsoftware.com/sep-sesam/si3-tachometer-analysis/ SEP Tachometer] – [[Special:MyLanguage/Licensing|Licensing]]</div></translate><noinclude>

[[Category:4.4.3 Grolar]]