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Enable the WAN optimization on the FortiGate :
config system storage
edit "Virtual_disk name"
set usage wanopt
next
end
The following information can be retrieved by checking the disk partition allocation via Command Line:
diagnose hardware deviceinfo disk
Disk SYSTEM(boot) 2.0GiB type: IDE [Virtio Disk] dev: /dev/vda
partition 231.0MiB, 103.0MiB free mounted: Y label: dev: /dev/vda1(boot) start: 2048
partition 1.6GiB, 1.4GiB free mounted: Y label: dev: /dev/vda2(boot) start: 526336
partition ref: 3 63.0MiB, 62.0MiB free mounted: N label: dev: /dev/vda3 start: 4063232
Disk Virtual-Disk ref: 16 16.0GiB type: IDE [Virtio Disk] dev: /dev/vdb
partition ref: 17 15.7GiB, 15.6GiB free mounted: Y label: LOGUSEDXCED43529 dev: /dev/vdb1 start: 2048
Disk Virtual-Disk2 ref: 32 10.0GiB type: IDE [Virtio Disk] dev: /dev/vdc
partition ref: 33 2.7GiB, 2.7GiB free mounted: Y label: WANOPTXX99A0FAD4 dev: /dev/vdc1 start: 2048 <----- 1 disk for wanopt.
partition ref: 34 2.8GiB, 2.8GiB free mounted: N label: dev: /dev/vdc2 start: 5978112
partition ref: 35 3.8GiB, 3.8GiB free mounted: N label: dev: /dev/vdc3 start: 11954176
Total available disks: 3
Max SSD disks: 8 Available storage disks: 2
Verification via SNMPwalk:
The wad disk count can be checked using the following SNMPwalk command:
snmpwalk -v2c -c test 10.191.19.120 FORTINET-FORTIGATE-MIB:fgDiskCount
FORTINET-FORTIGATE-MIB::fgDiskCount.0 = INTEGER: 1
Note:
The SNMP fgDiskCount.0 OID description is inaccurate, as it represents the count of WAD disks rather than the total disk count.
The OID is applicable only when the device has a disk reserved for WAN optimization.
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