Table 22 Ftrp Thresholds; Table 23 Ftv Thresholds - Fujitsu ETERNUS AF250 Design Manual

1. Function
Operations Optimization (Deduplication/Compression and Storage Virtualization)
FTRP Thresholds
•
There are two FTRP usage thresholds: Attention and Warning.

Table 22 FTRP Thresholds

Threshold
Attention
Warning
• FTV Thresholds
There is only one FTV usage threshold: Attention. If there is insufficient capacity for the FTV unallocated space
in the pool free space, an alarm notification is sent. The threshold is determined by the ratio of free space in
the FTSP and the unallocated FTV capacity.

Table 23 FTV Thresholds

Threshold
Attention
When the Flexible Tier function is enabled, 32 work volumes (physical capacity is 0MB) are created. The
•
maximum number of volumes that can be created in the ETERNUS AF decreases by the number of work
volumes that are created.
The FTRP capacity that can be used for VVOLs differs from the maximum Thin Provisioning Pool capacity. For
•
details, refer to
Selectable range
5 (%) to 80 (%)
5 (%) to 99 (%)
Selectable range
1 (%) to 100 (%)
"VMware VVOL" (page 115).
FUJITSU Storage ETERNUS AF250 S2, ETERNUS AF250 All-Flash Arrays Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
Default Setting conditions
Attention threshold £ Warning threshold
75 (%)
The "Attention" threshold can be omitted.
90 (%)
55
Default
80 (%)
P3AG-1822-09ENZ0