November 13, 20241 yr Hi, I have 2 Unraid servers. A mainserver, and a backupserver. They are connected with 10G. Mainserver: 1x 20TB HDD with the Movieshare and 4 other shares, 1x 20TB parity drive. All shares are ZFS Datasets. Backupserver: 2 ZFS RAIDZ1 pools, existing of 3x8TB SAS with 500GB SSD as cache and a pool of 4x4TB with 500GB cache. I am running a backup from different shares of this drive and the drive max out on 150MB/s, but as soon as it reaches the Movies share, and it copies some data, the speed goes down to around 15 to 25 MB/s. What could cause something like this? I saw this behavior with luckybackup, but also with Duplicacy. I first thought Duplicacy was the issue, because it makes chunks, and does compression. The Movies dataset is around 8.4TB. Thanks. unraid-diagnostics-20241113-1621.zip
November 13, 20241 yr Community Expert Diags are not working, forum problem, but using ZFS in the array has a now write performance issue, not a problem with pools.
November 13, 20241 yr Author 54 minutes ago, JorgeB said: Diags are not working, forum problem, but using ZFS in the array has a now write performance issue, not a problem with pools. But it reads from the zfs array, it write to the backupserver zfs pool, so that should, in this case, not count, right?
November 13, 20241 yr Community Expert Correct, when the forum attachments are working again, post the diags during a transfer, and the Windows explorer graph.
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