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We finally flipped the switch on one of our ZFS-based servers, with approximately 1TB of 2.8TB (3 stripes of 950MB or so, each of which is a RAID5 volume on the adaptec card). We have snapshots every 4 hours for the first few days. If you add up the snapshot references it appears somewhat high versus daily use (mostly mail boxes, spam, etc changing), but say an aggregate of no more than 400+MB a

...hat, if applicable), but I'm really stumped as to where the space is being eaten up. Thanks in advance, -Ray My layout is: #df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 131G 130G 0 100% / /dev/sdc1 271G 156G 102G 61% /home /dev/sdd1 271G 4.5G 253G 2% /home/905 /dev/sda1 99M 29M 66M 31% /boot tmpfs 442M 0 442M 0% /dev/shm # cat /etc/fstab /dev/VolGroup00/LogVol00 / ext3 defaults 1 1 LABEL=/home /hom...

...g it [11:35:08] root at chrysek: /root > zfs list NAME USED AVAIL REFER MOUNTPOINT mypool 272G 2.12G 24.5K /mypool mypool/d 271G 2.12G 143G /d/d2 mypool/d at 2006_month_10 3.72G - 123G - mypool/d at 2006_month_12 22.3G - 156G - mypool/d at 2007_month_01 23.3G - 161G - mypool/d at 2007_month_02 16.1G - 172G - mypool/d at 2007_month_03 13.8G - 168G - mypool/d at 2007_month_04 15.7G - 168G - mypool2 489G 448G 52K /mypool2 mypool2/d3 171G 448G 171G l...

...ce left. [11:32:52] root at chrysek: /d/d2 > zfs list NAME USED AVAIL REFER MOUNTPOINT mypool 271G 2.40G 24.5K /mypool mypool/d 271G 2.40G 143G /d/d2 mypool/d at month_10 3.72G - 123G - mypool/d at month_12 22.3G - 156G - mypool/d at month_01 23.3G - 161G - mypool/d at month_02 16.1G - 172G - mypool/d at month_03 13.8G - 168G - mypool/d at month_04 15.7G - 168G - mypool/d at day_14 185M - 143G - Anyway in snaps that I have I do have certain files in...

Currently I''m trying to figure out the best zfs layout for a thumper wrt. to read AND write performance. I did some simple mkfile 512G tests and found out, that per average ~ 500 MB/s seems to be the maximum on can reach (tried initial default setup, all 46 HDDs as R0, etc.). According to http://www.amd.com/us-en/assets/content_type/DownloadableAssets/ArchitectureWP_062806.pdf I would