SMS disk requirment

[Moudar]

Hi,

If my SMS log settings looks like this:

How big should the disk be in that case?

As you can see, there is 246 GB of free disk space available. This should be sufficient for up to one week before the SMS server starts complaining about low disk space. So what should be done ?

[AkosBakos]

Hi @Moudar 

The disk consumption of the logs depends on the daily log amount (size). After this info you can predict it will be enough on not.

$FWDIR/log <- count the size of a day logs.

Akos

[Lesley]

Storage requirements

Using the sustained logs per second, estimate the expected log volume per day. Then, use the expected log volume per day to calculate the disk space needed for the customer's retention requirements.

The average log size is ~150 bytes in size. Use this information to perform the following calculation
(Sustained logs per second) x (Seconds per working day) x (Log entry size) ÷ 1024 ÷ 1024 ÷ 1024 = Log storage in GB per day

Note: We use the Logging Rate/sec value to calculate the sustained logs per second. We assume the server will receive this number of sustained logs per second for a certain number of hours during a workday. In this example, we estimate a 12-hour workday, but you may need to adjust this period based on your scenario.

Log files and log index are the same size (log indexing has a 1:1 ratio). The default retention period for indexing is 14 days. However, the retention period can be changed. 

Then calculate the disk size required for the customer's specified retention period.
Log storage in GB per day x Retention period = Storage required for log retention (GB)

Example calculation:

• 2500 logs per second
• 90-day retention period
• 14 days for indexes to be kept

2500 x 43200 x 150 ÷ 1024 ÷ 1024 ÷ 1024 = 16 GB
(~16 GB x 90 days) + (16 GB x 14) = 1664 GB required