Hitachi HF-W2000 58 Instruction Manual page 258

10. SOFTWARE RAID1
NOTE
• If the RAID status is shown as Optimal (Media Error) after rebuilding is complete, we recommend that you
back up the data and then also replace the copy source HDD with a new one. (For the replacement procedure,
see 6.3.6 Installing and removing an HDD or SSD.)
After both HDDs have been replaced, set up the equipment again and restore data from the backup file. (For
details about how to set up the equipment again, see 10.2.2 Setting up a new RAID1 configuration.)
Alternatively, recover the equipment by using a backup HDD. (See 10.5.2 Recovery by using a backup HDD.)
Hardware status window (Media Error)
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