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Backups to Dell TL2000 with LT06 tape slow

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Hello all, I have Backup Advanced 11.5 running on a DELL PowerEdge R710 with Windows Server 2012 R2. I am running some jobs to tape using a DELL TL2000 with an LT06 drive connected via SAS card (to the R710)and the backups to tape seem very slow. The "Details" tab on the running tape job show a speed of 70MB/s. What should I be expecting speed-wise? 

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Hello Randy,

Thank you for posting! Could you please provide us with follogwing details:

  • are the firmware and drivers of the tape device up to date?
  • has the backup speed always been so slow or the issue occured for the first time? If not always, I would suggest checking backup to the newly created vault and provide results
  • the size of the TapeLocation folder (\ProgramData\Acronis\BackupAndRecovery\TapeLocation) and the size of the ARSM database (ProgramData\Acronis\BackupAndRecovery\ARSM\Database\arsm.sqlite:  stored on Acronis Storage Node (if centralized managed vault is created on tape) or Agent (if tape is attached locally))
  • could you please check the write block size of your tape device as per https://kb.acronis.com/content/46130

Thank you,

Hi also check actial write speed to drive from logs: C:\ProgramData\Acronis\BackupAndRecovery\ASN\Logs

it should look like this: 

<event id="158" level="2" module="0" code="0" time="1454587782" message="Tape drive operation statistics.&#10; &#32;Rewinds count: 0&#10; &#32;Total rewind time: 0 seconds&#10; &#32;Seeks count: 2&#10; &#32;Total seek time: 0 seconds&#10; &#32;Reads count: 1&#10; &#32;Total read time: 0 seconds&#10; &#32;Total data read: 65536 bytes&#10; &#32;Average data read: 65536 bytes&#10; &#32;Total read interval: 0 seconds&#10; &#32;Max read interval: 0 milliseconds&#10; &#32;Average read interval: 0 milliseconds&#10; &#32;Average read speed: 7281777 bytes/second&#10; &#32;Writes count: 1&#10; &#32;Total write time: 0 seconds&#10; &#32;Total data wrote: 65536 bytes&#10; &#32;Average data wrote: 65536 bytes&#10; &#32;Total write interval: 0 seconds&#10; &#32;Max write interval: 0 milliseconds&#10; &#32;Average write interval: 0 milliseconds&#10; &#32;Average write speed: 124681142 bytes/second&#10;" />

If actual write speed is higher than during backup, probably the source is a bottleneck?