Hi!
I'm using fabric metrocluster (fas8200) with disk-only aggregates. I want to add a FlashPool to one of the aggregates. I've read the TR-4070 and ONTAP documentation (link ) but i'm not sure about the procedure of changing the aggregate from HDD-only to hybrid in case of metrocluster. Here's what i have now:
cluster_a::> aggr show -fields mirror,node,aggregate,storage-type,hybrid-enabled,owner-name
aggregate storage-type mirror node hybrid-enabled owner-name
------------------ ------------ ------ ------------ -------------- ------------
aggr0_cluster_a_01 hdd true cluster_a-01 false cluster_a-01
aggr0_cluster_a_02 hdd true cluster_a-02 false cluster_a-02
aggr1_a hdd true cluster_a-01 false cluster_a-01
aggr2_a hdd true cluster_a-02 false cluster_a-02
4 entries were displayed.
cluster_a::> disk show -type ssd
Usable Disk Container Container
Disk Size Shelf Bay Type Type Name Owner
---------------- ---------- ----- --- ------- ----------- --------- --------
1.4.0 894.0GB 4 0 SSD spare Pool0 cluster_a-01
1.4.1 894.0GB 4 1 SSD spare Pool0 cluster_a-01
1.4.2 894.0GB 4 2 SSD spare Pool0 cluster_a-01
1.4.3 894.0GB 4 3 SSD spare Pool0 cluster_a-01
1.4.4 894.0GB 4 4 SSD spare Pool0 cluster_a-01
1.4.5 894.0GB 4 5 SSD spare Pool0 cluster_a-01
1.4.6 894.0GB 4 6 SSD spare Pool0 cluster_a-01
1.4.7 894.0GB 4 7 SSD spare Pool0 cluster_a-01
1.4.8 894.0GB 4 8 SSD spare Pool0 cluster_a-01
1.4.9 894.0GB 4 9 SSD spare Pool0 cluster_a-01
1.4.10 894.0GB 4 10 SSD spare Pool0 cluster_a-01
1.4.11 894.0GB 4 11 SSD spare Pool0 cluster_a-01
1.4.12 894.0GB 4 12 SSD spare Pool0 cluster_a-02
1.4.13 894.0GB 4 13 SSD spare Pool0 cluster_a-02
1.4.14 894.0GB 4 14 SSD spare Pool0 cluster_a-02
1.4.15 894.0GB 4 15 SSD spare Pool0 cluster_a-02
1.4.16 894.0GB 4 16 SSD spare Pool0 cluster_a-02
1.4.17 894.0GB 4 17 SSD spare Pool0 cluster_a-02
1.4.18 894.0GB 4 18 SSD spare Pool0 cluster_a-02
1.4.19 894.0GB 4 19 SSD spare Pool0 cluster_a-02
1.4.20 894.0GB 4 20 SSD spare Pool0 cluster_a-02
1.4.21 894.0GB 4 21 SSD spare Pool0 cluster_a-02
1.4.22 894.0GB 4 22 SSD spare Pool0 cluster_a-02
1.4.23 894.0GB 4 23 SSD spare Pool0 cluster_a-02
4.14.0 - 14 0 SSD remote - cluster_b-01
4.14.1 - 14 1 SSD remote - cluster_b-01
4.14.2 - 14 2 SSD remote - cluster_b-01
4.14.3 - 14 3 SSD remote - cluster_b-01
4.14.4 - 14 4 SSD remote - cluster_b-01
4.14.5 - 14 5 SSD remote - cluster_b-01
4.14.6 - 14 6 SSD remote - cluster_b-01
4.14.7 - 14 7 SSD remote - cluster_b-01
4.14.8 - 14 8 SSD remote - cluster_b-01
4.14.9 - 14 9 SSD remote - cluster_b-01
4.14.10 - 14 10 SSD remote - cluster_b-01
4.14.11 - 14 11 SSD remote - cluster_b-01
4.14.12 - 14 12 SSD remote - cluster_b-02
4.14.13 - 14 13 SSD remote - cluster_b-02
4.14.14 - 14 14 SSD remote - cluster_b-02
4.14.15 - 14 15 SSD remote - cluster_b-02
4.14.16 - 14 16 SSD remote - cluster_b-02
4.14.17 - 14 17 SSD remote - cluster_b-02
4.14.18 - 14 18 SSD remote - cluster_b-02
4.14.19 - 14 19 SSD remote - cluster_b-02
4.14.20 - 14 20 SSD remote - cluster_b-02
4.14.21 - 14 21 SSD remote - cluster_b-02
4.14.22 - 14 22 SSD remote - cluster_b-02
4.14.23 - 14 23 SSD remote - cluster_b-02
48 entries were displayed.
cluster_a::>
As you can see, my aggregates and SSDs are owned equally by all the cluster nodes. My plan is to use "add cache" button from the web interface to add the couple of SSD to one of the aggregates. My question is: how many SSD will be spent in case if i choose 2 SSDs to add to an aggregate? Why i'm asking - i've read that the flashpool cache is also mirrored via two sites, so it's obvoius that i should use equal quantity of SSDs on both sites for one aggregate. In this case, how the other side of the cluster is going to be configured? I mean, which SSDs (from which node) are going to be added to the aggregate?
