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windows backup very slow

Hello,

Am trying to perform windows backup for 2TB NTFS drive.

1st we tried MS-Windows Policy but backup speed was around 2MB/s

Then we tried FlashBackup-Windows Policy but same slow speed approx. 2MB/s (We used a dedicated drive as Shadow Copy Storage)

bpbkar Null test runs slowly also a specific folder show the below results

14:09:59.349 [9744.18528] <2> tar_base::backup_finish: TAR - backup: 76108 files
14:09:59.349 [9744.18528] <2> tar_base::backup_finish: TAR - backup: file data: 647569425 bytes 3 gigabytes
14:09:59.349 [9744.18528] <2> tar_base::backup_finish: TAR - backup: image data: 914026496 bytes 3 gigabytes
14:09:59.349 [9744.18528] <2> tar_base::backup_finish: TAR - backup: elapsed time: 1944 secs 2127187 bps
14:09:59.349 [9744.18528] <2> tar_base::V_vTarMsgW: INF - Total Size:647569425 + 3GB

If i copy/paste this same folder, the copy speed is around 35MB/s which is much faster then the backup speed.

Kindly Advice.

Regards,

Hadi

1 Reply

Re: windows backup very slow

This guide will help you to understand possible bottlenecks and how to tuning backup to tape

https://www.veritas.com/bin/support/docRepoServlet?bookId=99904379-99904385-1&requestType=pdf

See the section

NetBackup server performance in the data transfer path

The links below should also help

https://www.veritas.com/support/en_US/article.100000498

https://www.veritas.com/support/en_US/article.100030830

https://www.veritas.com/support/en_US/article.100008276