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

[Bacula-users] Overlapping backups causes two full backups - how to fix?

2018-10-29 Thread Philip Pemberton
Hi, I'm using Bacula to back up a 6TB ZFS array onto LTO, with a fortnightly full backup and daily incrementals. The problem I have is that the full backup sometimes takes more than 24h to run. This means that Bacula starts the next backup while the Full is still running, creating two full backup