Slow Tape Backup after clean install upgrade

[ITGURU]

I have a server which has an LTO 6 tape drive which backs up the local server it is attached to - 1.2TB of data. When the server was on server 2016 the backup took around 8-10 hours to complete and transfer speeds around 2000-3000 MB/Minute.

I did a clean install on the c drive of server 2019, reinstalled the Backup software (CA Arcserve), and all the HP drivers, however when i run the job the local disk backup to take is now transferring at between 500-800 MB/Minute.

No hardware has changed, only difference is operating system from 2016 to 2019. backup job is the same source etc.

Not sure what to look for that could be the issue.

Any help would be grateful.

Tapes pass HP Tools tests, HP drivers are installed, tried both Media driver and official HP driver with no change. Power settings set to high performance.

thanks.

[dmj]

If there's nothing showing in the error logs I'd expect it to be a driver problem somewhere along the line, perhaps the SATA controller? It wasn't clear from your post whether all the hardware is HP or just the tapedrive?

[ITGURU]

If there's nothing showing in the error logs I'd expect it to be a driver problem somewhere along the line, perhaps the SATA controller? It wasn't clear from your post whether all the hardware is HP or just the tapedrive?

 

Its All HP Hardware and the tape drive is connected to an independent SAS card.

[dmj]

I guess you're using all the official HP drivers for all the hardware, and given them the latest firmware.other than that I'd get a support ticket into HP and see if they have a known workaround.

[ITGURU]

I guess you're using all the official HP drivers for all the hardware, and given them the latest firmware.other than that I'd get a support ticket into HP and see if they have a known workaround.

 

The only update I cannot get is firmware for the tape drive as dont have active warranty/support on it, but wouldnt have thought would be the issue? Only proof i've got is to downgrade back to 2016 and re-test but not the way moving forward.

[dmj]

It does sound a weird one if all the drivers (Inc chipset and SATA) are up to date and have 2019 support from HP. I can't imagine 2019 has some magic function to slow things down! but if it's EOL then downgrade might be the best option. 2016 has life left in it, and a Linux could also be an option.