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General Operational Information
Data protection is accomplished with data replication on multiple servers. The system does not require
or support RAID for customer data; data is protected by redundant copies. Servers contain an LSI 3801
simple SAS/SATA HBA for customer data. Servers support hardware RAID1 mirrors for the internal
operating‐system drives.
Disk configuration is based on ratios of 1:15 or 1:60 per cabinet. No RAID is used, so 15 or 60 physical
disks are presented to the operating system. A server failure causes the system to lose access to all
drives. There is no caching, so there is no potential for data loss.
The system supports email home, depending on customer‐service levels.
Disk drives and DAE LEDs can be blinked manually.
1: Introduction
General Operational Information
9
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