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About low spare warnings

By default, Data ONTAP issues warnings to the console and logs if you have fewer than one hot spare disk that matches the attributes of each disk in your storage system. You can change the threshold value for these warning messages by using the raid.min_spare_count option.

To make sure that you always have two hot spares for every disk (a best practice), you can set the raid.min_spare_count option to 2.

Setting the raid.min_spare_count option to 0 disables low spare warnings. You might want to do this if you do not have enough disks to provide hot spares (for example if your storage system does not support external disk shelves). You can disable the warnings only if the following requirements are met: