Low on spare disk

PeterMe — Wed, 04 Jun 2025 09:50:23 GMT

Hi,

I have a FAS2720 with 9 disks, all assigned to one node.

I created one aggregate with 8 disks, 1 disk as spare.

In the eventlog I see warnings like this:

Call home for SPARES_LOW: /aggr1_aef_st3_n1/plex0/rg0, /aggr0_AEF_ST03_01/plex0/rg0

There are not enough spare disks. Assign unowned disks

Output from: storage aggregate show-spare-disks

Original Owner: aef-st3-n1
Pool0
Root-Data Partitioned Spares
Local Local
Data Root Physical
Disk Type Class RPM Checksum Usable Usable Size Status
---------------- ------ ----------- ------ -------------- -------- -------- -------- --------
1.0.4 FSAS capacity 7200 block 3.54TB 93.52GB 3.64TB zeroed

How do I avoid the warnings about LOW Spares ?

Thanks

Re: Low on spare disk

Ontapforrum — Wed, 19 Apr 2023 13:56:55 GMT

Please check this kb:

How to disable SPARES_LOW AutoSupport notifications:
https://kb.netapp.com/onprem/ontap/os/How_to_avoid_regular_notification_of_ASUPs_SPARES_LOW

Please Note: When you add partitioned disks to an aggregate, you must leave a disk with both the root and data partition available as spare for every node. If you do not and your node experiences a disruption, ONTAP cannot dump the core to the spare data partition.

To set raid.min_spare_count option to 0 with the following command: (To stop SPARES_LOW warnings)
::> storage raid-options modify -node <node_name> -name raid.min_spare_count -value 0

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Low on spare disk

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