Log Read/Write

This section describes the restrictions on LTS log read/write.

**Table 1** Log read/write restrictions
Category	Item	Description	Remarks
A complete LTS	Number of new logs per day	The number of new logs per day in a complete LTS is limited by the number of vCPUs and log scale-out packages for AOM you purchased. Every 100 vCPUs include 50 GB new logs per day. Multiple log scale-out packages A maximum of 80 TB new logs per day are supported.	For example: If you purchase 1000 vCPUs and two log scale-out packages with 100 GB per day, restrictions are as follows: New logs per day: 500 GB/day (comes with the 1000 vCPUs) + 100 GB/day x 2 log scale-out packages = 700 GB/day Steady log rate: 700 GB/day x 1024/24 hours/3600 seconds = 8.3 MB/s Peak log rate: 8.3 x 2 = 16.6 MB/s When the usage exceeds the licensed limit, LTS generates an alarm and may limit the traffic rate. If you need higher specifications, purchase a log scale-out package and upgrade.
	Steady log rate	Steady log rate = Number of new logs per day/24 hours/3600 seconds The maximum steady rate is 1000 MB/s.
	Peak log rate	Peak log rate = 2 x steady log rate The maximum peak rate is 2000 MB/s.
	Log writes	The number of writes is less than 1000 or the number of new logs per day/1 TB x 1000 (whichever is larger) in a complete LTS. The maximum log writes are 10,000 times per second.	N/A
	Log query	Up to 10 MB of logs are returned in a single API query in a complete LTS.	N/A
	Log reads	Logs can be read up to 600 times per minute in a complete LTS.	N/A
Log group	Number of new logs per day	The total number of new logs in all log groups cannot exceed the limit set in a complete LTS.	N/A
	Steady log rate	The total number of new logs in all log groups cannot exceed the limit set in a complete LTS.	N/A
	Peak log rate	The total number of new logs in all log groups cannot exceed the limit set in a complete LTS.	N/A
	Log reads	Logs are read up to 500 times per minute in a log group. N/A	N/A
	Log writes	The total number of new logs in all log groups cannot exceed the limit set in a complete LTS.	N/A
	Log query	Up to 10 MB of logs are returned in a single API query for a log group.	N/A
	Log reads	The total number of new logs in all log groups cannot exceed the limit set in a complete LTS.	N/A
Log stream	Number of new logs per day	The total number of new logs in all log streams cannot exceed the limit set in a complete LTS.	N/A
	Steady log rate	The total number of new logs in all log streams cannot exceed the limit set in a complete LTS.	N/A
	Peak log rate	The total number of new logs in all log streams cannot exceed the limit set in a complete LTS.	N/A
	Log writes	The total number of new logs in all log streams cannot exceed the limit set in a complete LTS.	N/A
	Log query	Up to 10 MB of logs are returned in a single API query for a log stream.	N/A
	Log reads	The total number of new logs in all log streams cannot exceed the limit set in a complete LTS.	N/A
	Log time	Logs in a period of 48 hours can be collected. Logs generated 48 hours before or after the current time cannot be collected. For example: If the current time is 11:00 on January 7, 2022, logs generated before 11:00 on January 5 cannot be collected. If the current time is 11:00 on January 7, 2022, logs generated after 11:00 on January 9 cannot be collected.	N/A