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Staff
Staff
July 9, 2025

Technical Tip: How to calculate quota GB/Day and Disk entitled for FortiAnalyzer Cloud

  • July 9, 2025
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Description

 

This article describes how to understand the quota GB/Day of logs and disk entitled from the subscription in FortiAnalyzer Cloud.

 

Scope

 

FortiAnalyzer Cloud.

 

Solution

 

FortiAnalyzer Cloud can be provisioned by getting a license either from Device Level or Account Level.

 

the device Level, each FortiGate can add an SKU for FortiAnalyzer Cloud subscription with or without SOCaaS. See: Licensing.

It can be reviewed in Support Portal -> Asset Management -> Products -> Product List -> FortiGate -> Select one FortiGate -> Entitlement -> Select the icon Entitlement Icon.png.

 

Device Level FAZ Cloud license.png

 

Additional storage license or in-case does not purchase any Device Level subscriptions, Account Level can be reviewed under Support Portal -> Asset Management -> Account Services -> FortiAnalyzer Cloud.

 

Account Level FAZ Cloud license.png

 

If checking on Account Level and it does not show any information, that is expected since no additional SKU FCX-10-AZCLD-463-01-DD are purchased, and are supposed to be only on Device Level.

 

Note:

SKU FCX-10-AZCLD-463-01-DD also supports FortiMail and FortiClient logs.

 

Once all levels of subscriptions are confirmed, proceed to understand how to calculate quota GB/Day and disk entitlement.

 

License information.png

 

For GB/Day daily rate of logging are depends on the FortiGate model:

 

Specifications (Virtual Machine) FortiGate Hardware Model Total daily log limit

Desktop or FortiGate-VM models with 2 CPU

FortiGate 30 to FortiGate 90 200MB/Day

1RU or FortiGate-VM models with 4 CPU

FortiGate 100 series, FortiGate 600 series, FortiGate 800 series, FortiGate 900 series 1GB/Day

2 RU and above or

FortiGate-VM models with 8 CPU and above

FortiGate 1000 series and higher 5GB/Day

 

Check under Support Portal -> Asset Management -> Products -> Product List -> FortiGate for Device Level.

 

Device Level GBDay.png

 

For Account LevelSupport Portal -> Asset Management -> Account Services -> FortiAnalyzer Cloud

 

Account Level GBDay.png

 

Total GB/Day is the combination of both Device Level and Account Level:

  • 800 MB/Day +5 GB/Day = 5.8 GB/Day  ~ round up to 6GB/Day

 

For entitled disk storage, the value for GB/Day times 100 Days for default Analytics retention.

  • 5.8 GB/Day x 100 = 580GB 

 

By default, FortiAnalyzer Cloud resources are provided with 6 vCPU, 16GB RAM, and 500GB disk despite the subscriptions entitled. Once it detects disk usage is more than 65%, the Cloud team will increase the storage size based on entitlement. 

 

Check the current disk size using the command below:

 

FAZVM64-VIO-CLOUD # execute lvm info
LVM Status: OK
LVM Size: 500GB
File System: ext4 491GB

Disk1 : Used 500GB
Disk2 : Unavailable 0GB
Disk3 : Unavailable 0GB
Disk4 : Unavailable 0GB
Disk5 : Unavailable 0GB
Disk6 : Unavailable 0GB
Disk7 : Unavailable 0GB
Disk8 : Unavailable 0GB
Disk9 : Unavailable 0GB
Disk10: Unavailable 0GB
Disk11: Unavailable 0GB
Disk12: Unavailable 0GB
Disk13: Unavailable 0GB
Disk14: Unavailable 0GB
Disk15: Unavailable 0GB

 

The command below will show reserved space from the total storage allocated and to be used in the FortiAnalyzer Cloud:

 

FAZVM64-VIO-CLOUD # diagnose log device <----- Retrieve logging-related information for managed devices
Device Name Device ID Used Space(logs / quarantine / content / IPS) Allocated Space Used%
FGVM02TM24010995 FGVM02TM24010995 20.2MB( 20.2MB/ 0.0KB/ 0.0KB/ 0.0KB) unlimited n/a
Total: 1 log devices, used=20.2MB quota=unlimited


AdomName AdomOID Type Logs Database
[Retention Quota Used( logs/quaranti/ content/ IPS) Used%] [Retention Quota Used( SiemDB/ hcache) Used%]
root 3 FSF 365days 264.0GB 20.5MB( 20.5MB/ 0.0KB/ 0.0KB/ 0.0KB) 0.0% 100days 176.0GB 24.0MB( 6.3MB/ 58.9KB) 0.0%
Total usage: 1 ADOMs, logs=20.5MB(20.5MB/0.0KB/0.0KB/0.0KB) database=309.8MB(ADOMs usage:24.0MB(6.3MB, 58.9KB) + Internal Usage:285.8MB)

Total Quota Summary:
Total Quota Allocated Available Allocate%
441.1GB 440.0GB 1.1GB 99.8%

System Storage Summary:
Total Used Available Use%
491.1GB 27.3GB 463.8GB 5.6 %

Reserved space: 50.0GB (10.2% of total space).

 

If the resources are not increased, contact TAC support to get an assistant. 

 

Related article:

Technical Tip: Understand number of devices connected to FortiManager Cloud