APC Disk On-line Server NAS-2100 - Manual (Page 112)

In degraded mode A disk of RAID 1 or RAID 5 configuration is unplugged or
fails. RAID data protection mechanism fails.
9 In this situation, users should back up disk data
immediately and replace the failed disk to rebuild
RAID configuration.
Note:
1. When R/W error is displayed for hard disk status, or “Not active” or “In
degraded mode” is displayed for RAID configuration, please replace the hard
disk immediately to ensure RAID data protection can work properly. QNAP is
not responsible for any data loss caused by delay in replacing failed disks in a
RAID configuration by users intentionally or unintentionally.
2. QNAP Systems, Inc. guarantees that all Disk On-line Server (NAS) released
have passed strict and complete QA test and can operate properly in normal
condition. QNAP offers conditional and limited maintenance for NAS within
warranty period. However, QNAP disclaims the responsibility for any data loss
or damage, or business loss of users. In no event shall the liability of QNAP
exceed the price paid for the product from direct, indirect, special, incidental,
or consequential software, or its documentation.
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