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Target Resources Disk Space Necessary for the Backup
- /var/spool/mjes
* Note: The backup of metering information is gathered under the control of the directory specified by the rcxmgrbackup command at an
off-line backup, and it is gathered in the area besides the specified directory at an online backup.
Please calculate a necessary amount of disk by backing up metering information referring to the following examples.
"The amount of disk space necessary for the base backup" is necessary for an off-line backup.
It is necessary to total the "Disk space necessary for base backup" and the "Disk space necessary for difference backup" for an online
backup.
In the following conditions, the amount of disk of about 12.6 GB is necessary for about 1.3 GB and online backups for an off-line backup.
Table 10.3 Condition Necessary for Backup of Metering Information
Item Estimated Value
Number of operating L-Platforms 1000
Number of resources per L-
Platform
L-Server
1
Expansion disk 1
Software 2
Usage status
- The following operations are executed every day
- Return and deployment of 10 L-Platforms
- Starting of 1,000 L-Servers when starting operations
- Stopping of 1,000 L-Servers when finishing operations
- A regular log is acquired every day
- Keep metering logs for one year
Online backup frequency
- Execute monthly base backup (every 30 days)
- Execute hourly difference backup.
Table 10.4 Formula for Metering Logs per Day
- Target capacity for metering logs
- Event Logs for an L-Platform : 2.3 KB/each time (A)
- Event Logs for other than an L-Platform : 0.6 KB/each time (B)
- Regular logs : 2.3 * number of L-Platforms (KB) (C)
- Metering logs per day
(A) * operation number for L-Platforms per day
+ (B) * operation number for other than L-Platforms per day
+ (C) * number of operating L-Platforms
= 2.3 KB * 20 + 0.6 KB * 2000 + 2.3 KB * 1000
= 3.5 MB
Table 10.5 Disk Space Necessary for Base Backup
Log of the metering each day * For one year
3.5 MB * 365 = 1.3 GB
Table 10.6 Disk Space Necessary for Difference Backup
disk space per WAL file : 16 MB
WAL file space frequency until acquiring base backup (30 days): 24 * 30
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