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Hi
We have a followig configuration:
AFF250 with 10 disks of 13,97TB.
ADPv2 is in place.
2 data aggregates of 9 partitions each 6,94 TiB in size.
We've just added 8 disks which appear as spares, not partitioned.
Tryig to expand the aggregate via GUI (ONTAP 9.10) I get the following estimation message:
Adding drives to local tier "aggr02" will increase its capacity by approximately 25 TiB
I wonder how is it going to expand the aggregate?
I would expect 8 partitions of 6,94 TiB added to the existing raid group what would result in 8x6,94TiB
Can I do it manually via command line?
Have not found any documentation other than Add capacity to a local tier (add disks to an aggregate) (netapp.com) but it is not detailed enough.
Thanks in advance for your advices.
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AlexeyF has accepted the solution
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It'll partition the drives and add the partition to the aggr. the remaining partition should get assigned to the partner node.
You can do it via CLI, I prefer it actually. The -simulate true flag is very helpful.
You'll end up with 17 disks in the raid group and a shared spare.
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AlexeyF has accepted the solution
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It'll partition the drives and add the partition to the aggr. the remaining partition should get assigned to the partner node.
You can do it via CLI, I prefer it actually. The -simulate true flag is very helpful.
You'll end up with 17 disks in the raid group and a shared spare.
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why then only 25TB instead of 55TB (8x6,94TB)?
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by "13,97TB". I'm assuming you mean 15.3TB NVMe Drives?
Good question.. checking maths -
10 total disks looks to be - 43.7 TiB useable per data aggr. RG size is 9x6.9TiB partitions
18 total disks looks to be - 91.11 TiB useable per data aggr. RG size is 17x6.9TiB partitions
But I would check it via the CLI - could be a GUI bug?
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CLUSTER02::> storage aggregate add-disks -aggregate aggr02 -diskcount 8 -simulate true
Error: command failed: Failed to add disks to aggregate "aggr02". Reason: Not enough spares on node Node2.
4 new disks are owned by Node1 and other 4 new disks are owned by Node2
1 spare already partitioned is in 1.0.4
The command would work only with max 5 disks:
storage aggregate add-disks -aggregate aggr02 -diskcount 5 -simulate true
Disks would be added to aggregate "aggr02" on node "Node2" in the following manner:
First Plex
RAID Group rg0, 5 disks (block checksum, raid_dp)
Usable Physical
Position Disk Type Size Size
---------- ------------------------- ---------- -------- --------
shared 1.0.4 SSD-NVM 6.94TB 6.94TB
shared 1.0.5 SSD-NVM 6.94TB 6.94TB
shared 1.0.6 SSD-NVM 6.94TB 6.94TB
shared 1.0.7 SSD-NVM 6.94TB 6.94TB
shared 1.0.8 SSD-NVM 6.94TB 6.94TB
Aggregate capacity available for volume use would be increased by 31.23TB.
The following disks would be partitioned: 1.0.5, 1.0.6, 1.0.7, 1.0.8.
Warning: Not enough spares of disk type SSD-NVM on node Node2.
So maybe should first add 4 disks to every aggregate, it will partition them and therefore permit to add another 4 disks ?
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You shouldn't have to... what is your spare partition/disk situation, now?
You still need to maintain spares after the aggregate expansions.
nodeshell CLI "sysconfig -r" for each node might provide more clarity.
Or open a technical case for formal assistance...
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So, adding 4 disks first (those 4 owened by the aggregates node) to one aggregate and the other 4 to another aggregates has partitioned them and I could add another 4 disk partitions to each aggregate (owened by partner node) afterwards.
It has added 25TBx2 though instead of 6.94TBx4x2.
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Does swapping aggregates (adding 2, removing 2) affect the ONTAP One licensing cost to the customer?
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Nope, licensing is just at the raw capacity level. not the config.
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so if they add capacity, then it would cost them??
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Yes, if you add physical disks to a system it has licensing + support in the capacity expansion quote.
Please reach out directly if you have question on quotes.