Hi, all, we use a big JBOD and ZFS with raidz2 as the target for our nightly Amanda backups.
I already suspected that the fact that the FS was > 90% full might be the cause of our backup performance continously decreasing. I just added another vdev - 6 disks of 750 GB each, raidz2 and the FS usage is back to 71% currently. This was while backups were running and write performance instantly skyrocketed compared to the values before. So, is it possible to name a reasonable amount of free space to keep on a raidz2 volume? On last year's EuroBSDCon I got the impression that with recent (RELENG_8) ZFS merges I could get away with using around 90%. Thanks, Patrick -- punkt.de GmbH * Kaiserallee 13a * 76133 Karlsruhe Tel. 0721 9109 0 * Fax 0721 9109 100 [email protected] http://www.punkt.de Gf: Jürgen Egeling AG Mannheim 108285 _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
