System Manager shows flexgroup balance as low

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Views:: 418

Visibility:: Public

Votes:: 0

Category:: ontap-9

Specialty:: core

Last Updated:

Applies to

ONTAP 9.12.1
System Manager
FlexGroups

Issue

System Manager shows the FlexGroup balance as low. After running a rebalance System Manager still reports the FG balance is low.

From the CLI we can see most of the members are between 45% and 50% used. Member volume flexgroup__0012 is at 62% capacity and thus the "low status" in System Manager.
Overall the FG is balanced. One member volume is imbalanced. The FlexGroup Balance Status in System Manager is based on the max constituent imbalance not the overall FlexGroup imbalance percent.

::*> vol show -volume flexgroup*

Vserver   Volume       Aggregate    State      Type       Size  Available Used%

--------- ------------ ------------ ---------- ---- ---------- ---------- -----

svm1 flexgroup   -            online     RW      34.07TB    16.25TB   49%

svm1 flexgroup__0001 aggr1_node2 online RW 1.95TB 1.02TB  45%

svm1 flexgroup__0002 aggr1_node1 online RW 2.07TB 1.02TB  48%

svm1 flexgroup__0003 aggr1_node1 online RW 2.00TB 1.02TB  46%

svm1 flexgroup__0004 aggr1_node2 online RW 2.14TB 1.01TB  50%

svm1 flexgroup__0005 aggr1_node1 online RW 2.16TB 1.02TB  50%

svm1 flexgroup__0006 aggr1_node2 online RW 2.12TB 1.01TB  49%

svm1 flexgroup__0007 aggr1_node2 online RW 2.06TB 1.02TB  48%

svm1 flexgroup__0008 aggr1_node2 online RW 2.14TB 1.02TB  50%

svm1 flexgroup__0009 aggr1_node1 online RW 2.03TB 1.02TB  47%

svm1 flexgroup__0010 aggr1_node1 online RW 1.94TB 1.02TB  44%

svm1 flexgroup__0011 aggr1_node1 online RW 2.16TB 1.01TB  50%

svm1 flexgroup__0012 aggr1_node2 online RW 2.81TB 1.02TB  62%

svm1 flexgroup__0013 aggr1_node2 online RW 2.03TB 1.02TB  47%

svm1 flexgroup__0014 aggr1_node1 online RW 2.20TB 1.02TB  51%

svm1 flexgroup__0015 aggr1_node1 online RW 2.17TB 1.02TB  50%

svm1 flexgroup__0016 aggr1_node2 online RW 2.08TB 1.02TB  48%

Cluster::*> volume rebalance show

Vserver: svm1
                                         Used      Size
                                          For   Used by  Target     Imbalance
Volume      State             Total Imbalance Snapshots    Used    Size      %
----------- -------------- -------- --------- -------- -------- -------- -----
FG       not-running     34.09TB   14.47TB   1.59TB        -  989.1GB    6%
FG__0001 not-running      1.95TB   747.4GB  98.32GB  925.9GB -178.6GB  -19%
FG__0002 not-running      2.07TB   944.2GB  29.16GB  925.9GB  18.25GB    1%
FG__0003 not-running      2.00TB   753.5GB  153.3GB  925.9GB -172.4GB  -18%
FG__0004 not-running      2.14TB    1015GB  23.22GB  925.9GB  89.26GB    9%
FG__0005 not-running      2.16TB    1010GB  47.90GB  925.9GB  84.25GB    9%
FG__0006 not-running      2.11TB   841.8GB  173.6GB  925.9GB  -84.2GB   -9%
FG__0007 not-running      2.06TB   914.6GB  45.15GB  925.9GB  -11.4GB   -1%
FG__0008 not-running      2.14TB   973.8GB  67.26GB  925.9GB  47.85GB    5%
FG__0009 not-running      2.03TB   741.5GB  194.5GB  925.9GB -184.5GB  -19%
FG__0010 not-running      1.95TB   777.3GB  68.98GB  925.9GB -148.6GB  -16%
FG__0011 not-running      2.15TB   885.0GB  168.5GB  925.9GB  -40.9GB   -4%
FG__0012 not-running      2.81TB    1.47TB  177.6GB  925.9GB  576.1GB   62%
FG__0013 not-running      2.04TB   757.4GB  179.2GB  925.9GB -168.6GB  -18%
FG__0014 not-running      2.20TB   951.5GB  149.1GB  925.9GB  25.52GB    2%
FG__0015 not-running      2.17TB    1.02TB  21.41GB  925.9GB  121.6GB   13%
FG__0016 not-running      2.08TB   952.2GB  30.36GB  925.9GB  26.23GB    2%
17 entries were displayed.

No errors and last rebalance completed on the FlexGroup and the most utilized FlexGroup member.

Cluster::*> volume rebalance show -instance

Vserver Name: svm1 Volume Name: FG Is Constituent: false Rebalance State: not-running Rebalance Notice Messages: - ... Rebalance Start Time: Thu Dec 15 08:15:15 2022 Rebalance Stop Time: Sat Dec 17 08:15:15 2022 Rebalance Runtime: 48h0m0s Rebalance Maximum Runtime: 48h0m0s ... Most Recent File Move Timestamp: Thu Dec 15 18:21:06 2022 File Moves Started: 1 ... Last File Move Error Timestamp: - Last File Move Error File ID: - Last File Move Error Destination Constituent DSID: - Last File Move Error Code: - ... Vserver Name: svm1 Volume Name: FG__0012 Is Constituent: true Rebalance State: not-running Rebalance Notice Messages: - ... Rebalance Start Time: Thu Dec 15 08:15:15 2022 Rebalance Stop Time: Sat Dec 17 08:15:15 2022 Rebalance Runtime: 48h0m0s Rebalance Maximum Runtime: 48h0m0s ... Most Recent File Move Timestamp: Thu Dec 15 18:21:06 2022 File Moves Started: 1 ... Last File Move Error Timestamp: - Last File Move Error File ID: - Last File Move Error Destination Constituent DSID: - Last File Move Error Code: - ... 17 entries were displayed.