QNAP TS-EC1680U-RP Manuel D’Utilisation

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Proactive data protection
RAID Group
RAID Group
RAID Group
Spare Drive
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2
3
Abnormal disk is detected
Migrate data to a spare disk
Replace the abnormal disk
For most important RAID Group
For All RAID Group
RAID Group 1
RAID Group 2
RAID Group 3
RAID Group 4
Hot spare
Global hot spare
Single RAID hot-spare supports individual RAID Group.
Global hot-spare protects 
multiple RAID Groups in the 
Turbo NAS
Advanced RAID read error recovery technology
When read errors occur due to bad blocks on a hard drive, the 
correct data on the bad blocks are automatically recovered with 
other healthy hard drives. Users are guaranteed to always obtain 
correct data. The process is run in the background, providing users 
with a hassle-free experience.
QNAP SMART data migration
With the SMART data migration function enabled, the QTS 
constantly monitors the disks on the Turbo NAS. If a possible 
drive failure or abnormal health status is detected, the data will be 
proactively migrated to a new spare drive, reducing potential data 
loss and skipping the process of RAID rebuilding.
RAID hot-spare and Global hot-spare drives
A hot spare drive can be configured so that if a hard drive in a specific RAID group fails, the hot spare drive will operate automatically. Moreover, 
the QNAP storage also supports global hot spare drives which allow the administrator to share the spare drives efficiently among multiple RAID 
Groups.
TLER and ERC support
TLER (Time-Limited Error Recovery) and ERC (Error Recovery 
Control) are now supported with compatible hard drives, improving 
drive error handling in RAID applications. This further prevents the 
hard drives from prematurely failing and forcing rebuilds & RAID 
volume loss. The data will be retrieved more quickly when a hard 
drive takes too long to respond from bad blocks.
RAID recovery
With QNAP NAS exclusive RAID recovery technology, the RAID can 
be recovered to a previous condition when more than the allowed 
disks are removed from a RAID volume. On the other hand, the RAID 
recovery technology is also helpful if the valid disk is removed by 
mistake instead of the failed one, especially for businesses with 
high-end Turbo NAS with many hard drives. The system will recover 
to the degraded mode with just one click after all of the hard drives 
are inserted back into the system. 
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