2. Notes and Cautions When Using This Product
Cautions When Using FlexGroup Rebalancing
Notes and Cautions When Using This Product
27
Cautions When Using FlexGroup Rebalancing
Even if FlexGroup Rebalancing is executed with the default settings, an imbalance may not be
resolved. For example, in configurations that have many files selected as targets for rebalancing but
the size of those files are smaller than the minimum file size (default of 100MB), an imbalance may
persist even after the process is completed due to a large number of files that remain unmoved
between constituents.
If the result of the rebalancing process is not what is expected, change the rebalancing setting with
the "volume rebalance modify" command and try again. The minimum file size selected as the tar-
get for rebalancing can be specified with the "-min-file-size" option.
If a value smaller than the default minimum file size is specified, the number of files that are moved
is more than when the default setting is used. Note that this may affect the read/write I/O perfor-
mance.
Cautions When the Maximum Capacity Value Is Set for SVMs
The maximum capacity value of SVMs can now be set from ONTAP 9.13.1. When the maximum
capacity value of SVMs is set, the following events occur.
• A capacity expansion of FlexGroups may fail
When the capacity of a FlexGroup is expanded, even if the maximum capacity of SVMs has not
been exceeded, the capacity expansion of the FlexGroup may fail.
If this occurs, expand the capacity after releasing the maximum capacity setting of SVMs.
Notes When Using the robocopy Command
The robocopy command updates the ctime after the initial copy, resulting in unmodified files being
marked as "modified".
For files copied to a volume using the CIFS protocol, an attempt to perform a differential backup
using the NDMP protocol may create an incomplete backup because the backup operation is
skipped.
For details, refer to "ONTAP 9.13.1 Setup Guide" (*1).
*1: A free Fujitsu ID is required to read this manual.
This problem has been resolved in ONTAP 9.14.1.
To Next Page
Loading...
Need help?
General