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Hitachi Vantara Knowledge

Setting advanced replication options


Two advanced options are available for replication:

Setting the number of threads for the custom performance level

Setting the interval at which HCP sends SNMP notifications about broken links

This section of the Help describes these options.

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Roles: To perform the activities listed above, you need the service role.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Changing the custom performance level


At any given time, a sending system on a replication link has a performance level that’s set in accordance with a schedule or a schedule override. The performance level controls the number of replication threads that can run on each node in the system for that link. For the low, medium, and high performance levels, the numbers of threads are one, five, and ten, respectively. For the custom performance level, the default number of threads is 25, but you can change this number.

The performance level is a maximum. On any given node, fewer threads can be running than the number indicated by the performance level.

If a system is sending data on more than one link, the maximum number of threads per node on that system is the total allowed by all those links.

The number of threads for the custom performance level is a systemwide setting that applies to all links in which the system participates.

To change the number of threads for the custom performance level:

1.In the top-level menu of the HCP System Management Console, select Configuration Miscellaneous.

2.In the Replication Threads for Custom Performance Level field, type the new number of threads for the custom performance level. Valid values are integers in the range one through 25.

3.Click Update Settings.

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Note: If a sending system is already using the custom performance level when you change the number of threads, you need to suspend and resume the link for the change to take effect. For information about suspending and resuming a replication link, see Suspending and resuming activity on an individual link.

For information about replication link schedules and schedule overrides, see Scheduling activity on a replication link.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Changing the broken-link reporting interval


HCP supports the use of SNMP for reporting certain events and conditions. When this capability is enabled, HCP reports broken links on a periodic basis. That is, while a link is broken, HCP sends an SNMP notification about the broken link every n minutes. By default, n equals 60. You can change this value.

To change the SNMP reporting interval for broken links:

1.In the top-level menu of the HCP System Management Console, select Configuration Miscellaneous.

2.In the SNMP Broken-link Reporting Interval field, type the number of minutes you want HCP to wait between SNMP notifications about broken links. Valid values are integers greater than or equal to one.

3.Click Update Settings.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

 

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