Re: [Bacula-users] LTO6 performance poor on first write pass?

2025-01-27 Thread Philip Pemberton via Bacula-users
On 27/01/2025 15:41, Udo Kaune wrote: Please try https://www.ibm.com/search?lang=en&cc=us&facetTabs=fixes&origin=fc&q=ITDT&tabType[0]=support I've tested the drive with ITDT and it passes health check and reports similar speeds. On the first pass the System Test achieves around 30MB/sec. On

[Bacula-users] LTO6 performance poor on first write pass?

2025-01-27 Thread Philip Pemberton via Bacula-users
Hi all, This isn't specifically a Bacula question but I know a bunch of you are running LTO drives and I hope you'll grant me the wisdom of your experience! I'm seeing an unusual (to me) issue with a new-old-stock IBM drive and tapes. They came as a package deal. The drive has about 600 power

Re: [Bacula-users] Fast drives for use as Bacula spool

2022-01-12 Thread Philip Pemberton via Bacula-users
On 10/01/2022 20:52, Josh Fisher wrote: That drive only has an 80 TBW endurance. For LTO 6 with compression, that's maybe 20 full tapes written. It won't last long as a cache drive. Indeed it didn't ... it lasted three months! To be fair I wasn't intending to use it long term -- it was a cheap

[Bacula-users] Fast drives for use as Bacula spool

2022-01-10 Thread Philip Pemberton via Bacula-users
Hi all, I'm using Bacula to back up a pair of servers (my firewall and NAS), backing up to an LTO6 drive. This requires a sustained data rate of around 150MB/sec with on-drive compression disabled, or more with compression. I previously used a spinning SATA hard drive, which peaked at around

Re: [Bacula-users] Improving Bacula backup performance

2020-12-25 Thread Philip Pemberton via Bacula-users
On 20/12/2020 12:38, Josh Fisher wrote: > It is not likely a network issue. 'A' does not have a strong processor. > When compression is enabled for a job, it is the client that performs > the compression. Likewise for data encryption. Try disabling both > compression and encryption for the 'A' job,

[Bacula-users] Improving Bacula backup performance

2020-12-18 Thread Philip Pemberton via Bacula-users
Hi all, I'm trying to improve the performance of my Bacula backups. I have a configuration with two machines: - "A" - a small server running a few web services. (Intel Celeron J1800 2.4GHz dual-core) - "B" - a 9TB NAS with a Quantum Superloader LTO-6 SAS tape robot (Intel Q6600 3GHz quad-cor