Re: [Bacula-users] LTO 8 Slow write speeds

2025-04-08 Thread Udo Kaune
Am 08.04.25 um 16:17 schrieb Gilles Van Vlasselaer: Hi Udo, Your Maximum File Size ist too small. If you assume 300MB/sec the tape would stop every 5000/300 seconds to write an EOF mark. That cannot be fast. Please try at least the amount of data for writing 3 minutes sustained (Maximum File

Re: [Bacula-users] LTO 8 Slow write speeds

2025-04-08 Thread Gilles Van Vlasselaer
Hi Udo, Your Maximum File Size ist too small. If you assume 300MB/sec the tape would stop every 5000/300 seconds to write an EOF mark. That cannot be fast. Please try at least the amount of data for writing 3 minutes sustained (Maximum File Size = 54GB). I'll try this once the current copy job

Re: [Bacula-users] LTO 8 Slow write speeds

2025-04-08 Thread Udo Kaune
Am 08.04.25 um 14:18 schrieb Gilles Van Vlasselaer: Hi all, I'm having issues with write speeds to our LTO drive. Copy jobs aren't going over 100 MB/sec, and on average it's around 80 MB/sec. Using btape speed I was benchmarking the performance on different tapes (HW compression on/off, HW en

[Bacula-users] LTO 8 Slow write speeds

2025-04-08 Thread Gilles Van Vlasselaer
Hi all, I'm having issues with write speeds to our LTO drive. Copy jobs aren't going over 100 MB/sec, and on average it's around 80 MB/sec. Using btape speed I was benchmarking the performance on different tapes (HW compression on/off, HW encryption on/off), and it reached 180-220 MB/sec, depe