Steve
2010-Mar-01 10:38 UTC
[zfs-discuss] Long time on old metaslab policy - fragmented pool?
We have had a pool on a fishworks appliance, since June 2009, which has been filled up with files of varying sizes... all of this data has been written prior to the metaslab fix of reducing metaslab_df_free_pct to 5... Whats the chances that our pool is now highly fragmented, and the metaslab changes in our fishworks software update will have little or no effect on this? Cheers //Rey -- This message posted from opensolaris.org
Richard Elling
2010-Mar-01 17:33 UTC
[zfs-discuss] Long time on old metaslab policy - fragmented pool?
On Mar 1, 2010, at 2:38 AM, Steve wrote:> We have had a pool on a fishworks appliance, since June 2009, which has been filled up with files of varying sizes... all of this data has been written prior to the metaslab fix of reducing metaslab_df_free_pct to 5... > > Whats the chances that our pool is now highly fragmented, and the metaslab changes in our fishworks software update will have little or no effect on this?The update should help regardless of the "fragmentation." -- richard ZFS storage and performance consulting at http://www.RichardElling.com ZFS training on deduplication, NexentaStor, and NAS performance http://nexenta-atlanta.eventbrite.com (March 16-18, 2010)