Hi,
I've come across an interesting error on my filer, not quite sure which limit is nearly reached.
It is a FAS3240 running ONTAP 7-Mode 8.1.4P1. The aggregates are 64-bit and quite large (62TB). So far I have only been able to find dedupe TR3505 which refers to older ONTAP versions, so those limits aren't really applicable. Hardware universe doesn't really go into specifics for the dedupe limts. TR-3505 did mention that if more data is put into the volume than can be deduped, the remainder of the data will simply remain undeduplicated.
My main questions are
- Which limit is being approached (i.e. is it the limit of total logical data which can be deduped?) 13% (6TB) seems quite a low amount of space saving if we are already hitting this limit. This is the largest of the volumes on this system, so perhaps it is a high utilisation
- What are the implications of this limit being reached (i.e. will the rest of the data simply no longer be deduplicated)?
Tue JulTue Jul 29 14:33:47 EST 29 14:[TOASTER:sis.logical.limit.near:notice]: Deduplication engine's logical data limit is nearly reached on volume abc_02_02.
33:47 EST [TOASTER:sis.logical.limit.near:notice]: Deduplication engine's logical data limit is nearly reached on volume abc_02_02.
TOASTER> df -S abc_02_02
Filesystem used total-saved %total-saved deduplicated %deduplicated compressed %compressed
/vol/abc_02_02/ 46378500288 6825984656 13% 6825984656 13% 0 0%
TOASTER> df -Vg abc_02_02
Filesystem total used avail capacity Mounted on
/vol/abc_02_02/ 46079GB 44353GB 1726GB 96% /vol/abc_02_02/
snap reserve 0GB 0GB 0GB ---% /vol/abc_02_02/..
TOASTER> aggr show_space t02_aggr02
Aggregate 't02_aggr02'
Total space WAFL reserve Snap reserve Usable space BSR NVLOG A-SIS Smtape
72784624640KB 7278462440KB 0KB 65506162200KB 0KB 569484220KB 0KB
Space allocated to volumes in the aggregate
Volume Allocated Used Guarantee
abc_02_02 47259792528KB 47096419876KB none
Aggregate Allocated Used Avail
Total space 47259792528KB 47096419876KB 17674614816KB
Snap reserve 0KB 0KB 0KB
WAFL reserve 7278462440KB 804435756KB 6474026684KB
TOASTER> df -S
Filesystem used total-saved %total-saved deduplicated %deduplicated compressed %compressed
/vol/vol0/ 9164856 0 0% 0 0% 0 0%
/vol/abc_vfiler02_root/ 46964 4 0% 4 0% 0 0%
/vol/abc_02_04/ 41661782260 1530436996 4% 1530436996 4% 0 0%
/vol/abc_02_06/ 46772132572 831851744 2% 831851744 2% 0 0%
/vol/abc_02_02/ 46528623924 6825665872 13% 6825665872 13% 0 0%
/vol/abc_02_08/ 5337547956 0 0% 0 0% 0 0%
Many thanks
