Unassigned disk accidentally assigned to aggr0

penangmis — Wed, 04 Jun 2025 23:53:47 GMT

We have a new FAS2552 just installed as below. There is only one aggregate = aggr0.

How we do unassinged disk data 0b.01.14 0b from the Disk Pool and make it become spare?

We want to have 2 spares disk instead of one.

aggr status -r
Aggregate aggr0 (online, mixed_raid_type, hybrid) (block checksums)
Plex /aggr0/plex0 (online, normal, active)
RAID group /aggr0/plex0/rg0 (normal, block checksums, raid_dp)

RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity 0a.00.4 0a 0 4 SA:A 0 SAS 10000 1142352/2339537408 1144641/2344225968
parity 0b.01.0 0b 1 0 SA:B 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0a.00.6 0a 0 6 SA:A 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0a.00.8 0a 0 8 SA:A 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0a.00.10 0a 0 10 SA:A 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0a.00.12 0a 0 12 SA:A 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0a.00.14 0a 0 14 SA:A 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0a.00.16 0a 0 16 SA:A 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0a.00.18 0a 0 18 SA:A 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0a.00.20 0a 0 20 SA:A 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0a.00.22 0a 0 22 SA:A 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0b.01.2 0b 1 2 SA:B 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0b.01.4 0b 1 4 SA:B 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0b.01.6 0b 1 6 SA:B 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0b.01.8 0b 1 8 SA:B 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0b.01.10 0b 1 10 SA:B 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0b.01.12 0b 1 12 SA:B 0 SAS 10000 1142352/2339537408 1144641/2344225968
data 0b.01.14 0b 1 14 SA:B 0 SAS 10000 1142352/2339537408 1144641/2344225968

RAID group /aggr0/plex0/rg1 (normal, block checksums, raid4)

RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
parity 0a.00.0 0a 0 0 SA:A 0 SSD N/A 381304/780910592 381554/781422768
data 0a.00.2 0a 0 2 SA:A 0 SSD N/A 381304/780910592 381554/781422768

Pool1 spare disks (empty)

Pool0 spare disks

RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
Spare disks for block checksum
spare 0b.01.16 0b 1 16 SA:B 0 SAS 10000 1142352/2339537408 1144641/2344225968

Re: Unassigned disk accidentally assigned to aggr0

BALAJI_VENKATRAMAN — Mon, 06 Jul 2015 08:56:46 GMT

I dont think you can unassign a disk from the Raid Group or aggregate.You can only assign/unassign between conntrollers.

Since you say this is a new controller,cant you destroy and re-create the new aggregate?

Balaji

Re: Unassigned disk accidentally assigned to aggr0

Racoon — Mon, 06 Jul 2015 11:35:03 GMT

NetApp official read is: "Destroy the aggregate" Its not possible to remove ownership of that data disk and make it a spare disk.

Re: Unassigned disk accidentally assigned to aggr0

JGPSHNTAP — Mon, 06 Jul 2015 18:08:58 GMT

Both posters are correct.

Re: Unassigned disk accidentally assigned to aggr0

penangmis — Tue, 07 Jul 2015 03:02:25 GMT

Thanks guys. Appreciate the reply.

NetApp Support have reply with note https://kb.netapp.com/support/index?page=content&id=1011550

We will have to go through the configuration again.

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Unassigned disk accidentally assigned to aggr0

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