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Forum Discussion
ReadyNAS - A RAID that is not a RAID
I have owned and used ReadyNAS models for many, many years and also used them at work. I personally own three which are an NV+, and two Pro Business Edition models. At work we have three 1100 models. ...
Disks can and do fail at any time and in various ways. Especially if the disk failure manages to go undetected this can cause issues. Did you get any email alerts about SMART errors to warn you that this disk was having issues?
The Sparc models are far more limited than newer models in how they check to see if a disk is bad. Disk 4 may have failed to respond in a reasonable amount of time or perhaps you saw another pattern?: http://kb.netgear.com/app/answers/detail/a_id/21437/~/what-does-this-light-pattern-mean%3F-(led)
Newer models have a Disk Test boot option that can be used to help with checking if disks are bad. Unfortunately this option is not available for Sparc
Handling of disk failures does improve over time. Updates to e.g. smartmontools can help as they add profiles for newer drives.
The Sparc models are far more limited than newer models in how they check to see if a disk is bad. Disk 4 may have failed to respond in a reasonable amount of time or perhaps you saw another pattern?: http://kb.netgear.com/app/answers/detail/a_id/21437/~/what-does-this-light-pattern-mean%3F-(led)
Newer models have a Disk Test boot option that can be used to help with checking if disks are bad. Unfortunately this option is not available for Sparc
Handling of disk failures does improve over time. Updates to e.g. smartmontools can help as they add profiles for newer drives.
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