Owners Manual
• XC640
• XC6420
• XC740xd
• XC940
BOSS card features
BOSS card supports the following features:
• Foreign Import
• SMART Info
• Auto-Rebuild
Foreign Import
A virtual disk is considered foreign if it is not native to the adapter.
• A virtual disk is considered native to the adapter if:
– The virtual disk was created or imported on the adapter.
• A physical disk is considered native to the adapter if:
– There is no previous virtual disk metadata on the adapter and the physical disk(s) are uncongured.
– All congured virtual disk(s) on the physical disk(s) are deleted.
SMART Info
SMART monitors certain physical aspects of all motors, heads, and physical disk electronics to help detect predictable physical disk failures.
Data on SMART-compliant physical disks can be monitored to identify changes in values and determine whether the values are within
threshold limits. Many mechanical and electrical failures display some degradation in performance before failure.
A SMART failure is also referred to as predicted failure. There are numerous factors that are predicted physical disk failures, such as a
bearing failure, a broken read/write head, and changes in spin-up rate. In addition, there are factors related to read/write surface failure,
such as seek error rate and excessive bad sectors.
Auto-Rebuild
A virtual disk rebuild will begin on system boot automatically if the native virtual disk is degraded and a valid rebuild target is present. A valid
rebuild target is any functional drive attached to the BOSS-S1 device which is not part of the native virtual disk and is of equal or greater
storage capacity. An auto-rebuild occurs without prompting the user, and any data on the rebuild target is overwritten.
Deploying the BOSS card
This section provides a set of high-level installation and removal instructions for the BOSS-S1 card.
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BOSS card