Adding more drives to an aggregate

[DarrenAllott]

Hi All, 

I understand the concept of adding a disk to an aggregate but i'd like to add 8 in one go.

Below is the current aggregate raid groups. rg5 only has 17 disks, and as the aggregate is running low on space, i would like to add another 8 600gb disks. This would bring the raid group up to the same level as the others. There are more than enough spare disks in the system.

Would the command be 

aggr add NET01B_FC600_AGGR4 rg5 8@600G

Also i have read i need to perform run a full reallocation job on each FlexVol volume contained in that aggregate?

Is there anything else i would need to consider?

Cheers

Aggregate NET01B_FC600_AGGR4 (online, raid_dp) (block checksums)
Plex /NET01B_FC600_AGGR4/plex0 (online, normal, active)
RAID group /NET01B_FC600_AGGR4/plex0/rg0 (normal, block checksums)

RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity 5b.05.0 5b 5 0 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
parity 5c.25.2 5c 25 2 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 1a.05.1 1a 5 1 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.04.23 1a 4 23 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.05.2 5b 5 2 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.05.3 1a 5 3 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.05.4 5b 5 4 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.05.5 1a 5 5 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.05.6 5b 5 6 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.01.13 1a 1 13 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.05.8 5b 5 8 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.05.9 1a 5 9 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.05.10 5b 5 10 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1c.22.2 1c 22 2 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.01.12 1a 1 12 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.05.13 1a 5 13 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.05.14 5b 5 14 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.05.15 1a 5 15 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.02.8 1a 2 8 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5c.23.17 5c 23 17 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.08.9 5b 8 9 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.05.19 1a 5 19 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.05.20 5b 5 20 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688

RAID group /NET01B_FC600_AGGR4/plex0/rg1 (normal, block checksums)

RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity 5b.06.10 5b 6 10 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
parity 5b.06.11 5b 6 11 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.06.12 5b 6 12 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.06.13 5b 6 13 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.06.14 5b 6 14 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.06.15 5b 6 15 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.06.16 5b 6 16 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.06.17 5b 6 17 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 1a.04.8 1a 4 8 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.06.19 5b 6 19 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.06.20 5b 6 20 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.06.21 5b 6 21 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.06.22 5b 6 22 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.06.23 5b 6 23 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.07.11 5b 7 11 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.07.12 5b 7 12 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.07.13 5b 7 13 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.07.14 5b 7 14 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.07.15 5b 7 15 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.07.16 5b 7 16 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.07.17 5b 7 17 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.07.18 5b 7 18 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.07.19 5b 7 19 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096

RAID group /NET01B_FC600_AGGR4/plex0/rg2 (normal, block checksums)

RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity 5b.09.1 5b 9 1 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
parity 5b.09.2 5b 9 2 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.3 5b 9 3 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.4 5b 9 4 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.5 5b 9 5 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.6 5b 9 6 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.7 5b 9 7 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.8 5b 9 8 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.9 5b 9 9 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.10 5b 9 10 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.11 5b 9 11 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.04.15 1a 4 15 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.13 5b 9 13 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.14 5b 9 14 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.15 5b 9 15 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.16 5b 9 16 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.17 5b 9 17 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.18 5b 9 18 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.19 5b 9 19 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.07.21 5b 7 21 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.09.21 5b 9 21 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.22 5b 9 22 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.09.23 5b 9 23 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688

RAID group /NET01B_FC600_AGGR4/plex0/rg3 (normal, block checksums)

RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity 1c.23.0 1c 23 0 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
parity 5b.06.18 5b 6 18 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 1c.23.2 1c 23 2 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5c.23.3 5c 23 3 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1c.23.4 1c 23 4 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5c.23.5 5c 23 5 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1c.23.6 1c 23 6 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5c.23.7 5c 23 7 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1c.23.8 1c 23 8 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5c.23.9 5c 23 9 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1c.23.10 1c 23 10 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.03.12 1a 3 12 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 1c.23.12 1c 23 12 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.08.6 5b 8 6 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1c.23.14 1c 23 14 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.04.21 1a 4 21 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1c.23.16 1c 23 16 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.02.15 1a 2 15 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 1c.23.18 1c 23 18 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5c.23.19 5c 23 19 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.05.18 5b 5 18 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5c.23.21 5c 23 21 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1c.23.22 1c 23 22 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5c.23.23 5c 23 23 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.01.2 1a 1 2 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096

RAID group /NET01B_FC600_AGGR4/plex0/rg4 (normal, block checksums)

RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity 5c.24.0 5c 24 0 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
parity 5c.24.1 5c 24 1 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.2 5c 24 2 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.3 5c 24 3 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.4 5c 24 4 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.5 5c 24 5 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.6 5c 24 6 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.7 5c 24 7 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.8 5c 24 8 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.9 5c 24 9 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.10 5c 24 10 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.11 5c 24 11 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.12 5c 24 12 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.13 5c 24 13 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.14 5c 24 14 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.15 5c 24 15 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.16 5c 24 16 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.17 5c 24 17 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.18 5c 24 18 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.19 5c 24 19 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.20 5c 24 20 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.21 5c 24 21 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.22 5c 24 22 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5c.24.23 5c 24 23 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 1a.02.0 1a 2 0 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688

RAID group /NET01B_FC600_AGGR4/plex0/rg5 (normal, block checksums)

RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity 5b.08.4 5b 8 4 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
parity 5b.08.3 5b 8 3 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.08.2 5b 8 2 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.04.13 1a 4 13 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.06.9 5b 6 9 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.08.1 5b 8 1 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 5b.06.5 5b 6 5 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.07.22 5b 7 22 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
data 1a.01.17 1a 1 17 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.03.4 1a 3 4 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 1a.04.7 1a 4 7 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.01.7 1a 1 7 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.02.22 1a 2 22 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
data 5b.08.0 5b 8 0 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.02.6 1a 2 6 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.05.11 1a 5 11 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
data 1a.01.15 1a 1 15 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688

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 1a.01.16 1a 1 16 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.01.18 1a 1 18 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.01.19 1a 1 19 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.01.22 1a 1 22 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.02.16 1a 2 16 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.02.18 1a 2 18 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.02.19 1a 2 19 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.02.23 1a 2 23 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.04.16 1a 4 16 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.04.18 1a 4 18 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.04.19 1a 4 19 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 5b.08.19 5b 8 19 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
spare 5b.08.20 5b 8 20 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
spare 5b.08.21 5b 8 21 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
spare 5b.08.22 5b 8 22 SA:A 0 SAS 15000 560000/1146880000 560208/1147307688
spare 5c.23.1 5c 23 1 SA:B 0 SAS 15000 560000/1146880000 560208/1147307688
spare 1a.01.6 1a 1 6 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
spare 1a.02.7 1a 2 7 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
spare 1a.02.9 1a 2 9 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
spare 1a.02.14 1a 2 14 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
spare 1a.04.5 1a 4 5 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
spare 1a.04.12 1a 4 12 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
spare 1a.04.17 1a 4 17 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
spare 1a.04.22 1a 4 22 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
spare 1a.05.7 1a 5 7 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
spare 1a.05.21 1a 5 21 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096
spare 1c.22.1 1c 22 1 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
spare 5b.05.12 5b 5 12 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
spare 5b.09.12 5b 9 12 SA:A 0 SAS 15000 560000/1146880000 560879/1148681096
spare 5c.25.19 5c 25 19 SA:B 0 SAS 15000 560000/1146880000 560879/1148681096

[colsen]

Hello,

The jury is still out on the reallocate - we've added disks to an aggregate before and gotten mixed responses on whether the resulting "hot spindles" would hurt our performance terribly vs. not worrying about it - let the new writes all go there and then WAFL will figure it all out in the long run.  If write latency is already an issue for you then maybe a reallocate is in order...

One quick correction to your command:

aggr add NET01B_FC600_AGGR4 -g rg5 8@600G

(just adding the -g to the command in front of the raid group)

Good quick reference for you:  https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-93C8D102-9666-46AF-8350-03EFF8A6A68B.html

Good luck!

Chris