public:faq:how_to-setup_temporary_directory
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public:faq:how_to-setup_temporary_directory [2021/04/19 14:41] ronnie.chan |
public:faq:how_to-setup_temporary_directory [2021/10/15 10:44] (current) support default settings for temporary directory location -- remove syn/qnap per clee |
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| ===== How does CloudBacko use the temporary directory? ===== | ===== How does CloudBacko use the temporary directory? ===== | ||
| - | CloudBacko Pro / Lite / Home make use of the temporary directory for both backup and restore jobs. | + | CloudBacko Pro / Lite / Home makes use of the temporary directory for both backup and restore jobs. |
| + | <WRAP indent> | ||
| + | |||
| + | ==== Backup ==== | ||
| For a backup job, it is used to temporarily store the: | For a backup job, it is used to temporarily store the: | ||
| * Backup set index files, an updated set of index files is generated after each backup. The index files are synchronized to each individual backup destination at the end of each backup job. | * Backup set index files, an updated set of index files is generated after each backup. The index files are synchronized to each individual backup destination at the end of each backup job. | ||
| Line 13: | Line 16: | ||
| * For some backup sets, e.g. VM or database the actual database files will be spooled to the temporary folder (CloudBacko Pro makes a copy of the entire database and saves the database files in the temporary directory) in order to achieve a consistent snapshot for backups. | * For some backup sets, e.g. VM or database the actual database files will be spooled to the temporary folder (CloudBacko Pro makes a copy of the entire database and saves the database files in the temporary directory) in order to achieve a consistent snapshot for backups. | ||
| + | ==== Restore ==== | ||
| For a restore job, it is used to temporarily store the: | For a restore job, it is used to temporarily store the: | ||
| * Full and incremental/differential delta files retrieved from the backup destination. | * Full and incremental/differential delta files retrieved from the backup destination. | ||
| * Merging of incremental/differential delta files as part of the restore process. | * Merging of incremental/differential delta files as part of the restore process. | ||
| + | |||
| + | </WRAP> | ||
| ===== Factors that determine the disk space usage or free space required for the temporary directory ===== | ===== Factors that determine the disk space usage or free space required for the temporary directory ===== | ||
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| <WRAP indent> | <WRAP indent> | ||
| - | ==== For Backup Sets with spooling ==== | + | ==== Backup Sets with spooling ==== |
| ^ Backup Set Type ^ Operating System ^ | ^ Backup Set Type ^ Operating System ^ | ||
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| Total File Size Spooled + [(Total File Size * Delta Ratio) * number of backup destinations] = Maximum Free Space Required | Total File Size Spooled + [(Total File Size * Delta Ratio) * number of backup destinations] = Maximum Free Space Required | ||
| - | **Example:** | + | **__Example:__** |
| Backup of 1TB MS SQL Server using ODBC mode with default delta ratio setting of 50% will require up to 1.5TB of free space on the temporary directory location. | Backup of 1TB MS SQL Server using ODBC mode with default delta ratio setting of 50% will require up to 1.5TB of free space on the temporary directory location. | ||
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| *A VMware ESXi/vCenter backup using VDDK mode, the incremental/differential delta files are directly generated by VMware host itself and therefore the temporary directory is not used for this purpose. | *A VMware ESXi/vCenter backup using VDDK mode, the incremental/differential delta files are directly generated by VMware host itself and therefore the temporary directory is not used for this purpose. | ||
| - | **Example:** | + | **__Example:__** |
| Backup of 1TB Hyper-V guest with default delta ratio setting of 50% will require up to 500GB of free space on the temporary directory location. | Backup of 1TB Hyper-V guest with default delta ratio setting of 50% will require up to 500GB of free space on the temporary directory location. | ||
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| | Linux / FreeBSD | /root/temp | | | Linux / FreeBSD | /root/temp | | ||
| | macOS | /Users/%username%/temp | | | macOS | /Users/%username%/temp | | ||
| - | | Synology DSM | /root/temp | | ||
| - | | QNAP QTS | /root/temp | | ||
| ===== Where should the temporary directory be located? ===== | ===== Where should the temporary directory be located? ===== | ||
public/faq/how_to-setup_temporary_directory.1618814500.txt.gz · Last modified: 2021/04/19 14:41 by ronnie.chan
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