Fujitsu PRIMERGY LTO3 User Manual page 78

Backup performance/capacity
The backup performance and backup capacity that can be used in one data cartridge varies depending
on the following factors:
• The conditions (attrition, dust, etc.) of the recording surface of the data cartridge to be used.
• The dust and dirt condition of this product head
• Data compression rate
• The workload on the server
• Server configuration (Hard disk connection, RAID level etc.)
Points to note during system configuration
When using a single data cartridge over and over, all the data can be lost in the event the backup fails.
The damage in the event of trouble can be minimized if two or more data cartridges are used for
backup operation.
Example: Using different data cartridges for each day of the week.
Ejecting the cartridge when power is turned off or when restarting
this product
This product write management information to the tape when the cartridge is being ejected
(rewound). Therefore, if the power is turned off while the tape is inside, an error tape where no
management data has been written will be created and problems such as data restore failure will
occur. Eject the cartridge before turning off the power supply or restarting the server.
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