public:faq:why_transfer_rate_backup_job_is_inconsistent
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public:faq:why_transfer_rate_backup_job_is_inconsistent [2019/09/26 13:42] ronnie.chan created |
public:faq:why_transfer_rate_backup_job_is_inconsistent [2019/09/26 13:43] (current) ronnie.chan |
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| ====== Why is the transfer rate of my backup job so inconsistent ====== | ====== Why is the transfer rate of my backup job so inconsistent ====== | ||
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| - | **Question:** | + | **Question:** \\ |
| The transfer rate of my backup job is very inconsistent. During a backup, the transfer rate can goes up to 50+ Mbit/s, then it will drop down to 0 bit/s for minutes before going up again. Why is that? Why would the transfer rate be at 0 bit/s during a backup? | The transfer rate of my backup job is very inconsistent. During a backup, the transfer rate can goes up to 50+ Mbit/s, then it will drop down to 0 bit/s for minutes before going up again. Why is that? Why would the transfer rate be at 0 bit/s during a backup? | ||
| - | **Answer:** | + | **Answer:** \\ |
| When the transfer rate is at 0 bit/s, the backup process is: | When the transfer rate is at 0 bit/s, the backup process is: | ||
| - awaiting for the Volume Shadow Copy to be created, or | - awaiting for the Volume Shadow Copy to be created, or | ||
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| Transfer rate, specifically refers to the transfer speed of the individual block files when they are being 'transferred'. | Transfer rate, specifically refers to the transfer speed of the individual block files when they are being 'transferred'. | ||
| - | **More details on the point 3**: | + | **More details on the point 3**: \\ |
| - | Individual backup files are 'combined' into 'block' file before they are transferred to the backup destination (e.g. local destination, CBS, cloud storage destination), reducing the overhead during the upload, while also reduces the number of files in the backup destination. | + | Individual backup files are 'combined' into 'block' file before they are transferred to the backup destination (e.g. local destination, FTP/SFTP, cloud storage destination), reducing the overhead during the upload, while also reduces the number of files in the backup destination. |
| Files that are 16 MB or smaller are 'combined' into a single 16 MB 'block' file before they are transferred to the backup destination | Files that are 16 MB or smaller are 'combined' into a single 16 MB 'block' file before they are transferred to the backup destination | ||
public/faq/why_transfer_rate_backup_job_is_inconsistent.1569476532.txt.gz · Last modified: 2019/09/26 13:42 by ronnie.chan
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