How to limit bandwith of Backup&Restore or the Filer itself

predgb — Thu, 05 Jun 2025 05:25:18 GMT

Hello,

we have a problem here. Our Frontend Network is 1gig. Our new FAS (with data netapp ontapp) is connected with the same speed. When i run a backup/restore from our FAS to our data restore solution it uses up all of the available network speed and clients havei ssues working while the restore is runnng.

Is there a command to limit my bandwith for certain backup/restores or just an overall limit to keep the FAS from using all of the available network speed.

Sorry for bad english!

Please help^^

Re: How to limit bandwith of Backup&Restore or the Filer itself

georgevj — Wed, 12 Nov 2014 06:56:51 GMT

Its not clear whether the storage systems in question is running 7 mode or clustered ONTAP. However, for 7 mode, these are some of the options which may be useful.

See "man options" for details:

interface.blocked.ndmp
The option is set to a comma-separated list of interface names for which NDMP is blocked. The default
is the empty list, "", which means that NDMP is not blocked on any interface (unless option
interface.blocked.mgmt_data_traffic is set to "on"). The
interface list cannot include TOE-enabled interfaces or iSCSI HBAs. See the NMG for details.

interface.blocked.snapmirror
The option is set to a comma-separated list of interface names for which snap* protocols are blocked.
The default is the empty list, "", which means that snap* protocols are not blocked on any interface
(unless option interface.blocked.mgmt_data_traffic is set to "on"). The interface list cannot include
TOE-enabled interfaces or iSCSI HBAs. See the NMG for details.

replication.throttle.enable
Enables global network throttling of SnapMirror and SnapVault transfers. The default value for this
option is off.
replication.throttle.incoming.max_kbs
This option specifies the maximum total bandwidth used by all the incoming (applied at destination)
SnapMirror and SnapVault transfers, specified in kilobytes/sec. The default value for this option is
unlimited, which means there is no limit on total bandwidth used. This option is valid only when the
option replication.throttle.enable is on.
replication.throttle.outgoing.max_kbs
This option specifies the maximum total bandwidth used by all the outgoing (applied at source)
SnapMirror and SnapVault transfers specified in kilobytes/sec. The default value for this option is
unlimited, which means there is no limit on total bandwidth used. This option is valid only when the
option replication.throttle.enable is on.

you could also try the "kbs=" arguement in snapmirror.conf to limit the throuput of snapmirror on a per relationship basis.

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How to limit bandwith of Backup&Restore or the Filer itself

Re: How to limit bandwith of Backup&Restore or the Filer itself