#Mirroring

Hi all

I have a pair of servers configured as a mirror, each server sits in a separate data centre.

I have noticed that occasionally, the primary will report that the backup is disconnected in the Mirror Monitor, and I believe this to be due to connection conditions between the two data centres.

We recently went through an Audit of our Security Policies and Procedures when it comes to IRIS. As a result of that Audit, we need to make adjustments to the way that Security is setup within IRIS. I have already done my changes on our TEST and DEVELOPMENT environments, but now I am trying to plan out how do we make these changes in Production.

These changes include moving away from the PWS, setting up Apache/Web Gateway, moving to LDAP instead of using Delegated Authentication, updating Web Applications, updating Resources, updating Services, etc...

Hi,

I'm trying to add a DR async member to a mirror but when I add this member I get this messages in the mirror monitor (on the DR member):

The message im talking about is the "missing Mirrored Databases report".

The only step I did was the " System Administration -> Configuration -> Mirror Settings -> Join as Async" an fill the blanks. Maybe Im skipping a step?

I am working on setting up our Failover techniques as we move to a Mirror Environment with a Arbiter, 2 Failover Nodes, and a Async (DR) Node. There are some system commands that I would like to call when the Mirror moves, and I am working on a ZMIRROR routine for that, but I also wanted to create an additional step if we wanted to manually shutdown and for the Mirror to move. So I was looking at using ZSTOP to call a couple of different items while shutting down, while the documentation has an example a couple of questions come to mind about using ZSTOP.

Hi All,

When I log into Backup mirror member it becomes too slow to load and navigate, I tried to check message log and I saw the error message about Database mirror latency and database disk issue which when I check it looks fine to me. Please have a look at the below screenshots and advise what the issue could be.

When I run df -h through SSH :

200G is the volume size, 194G is used space, 6.5G is available space and 97% IS %Use

Hi

I'm using this query "Config.MapMirror.List" To get information of the list of servers that are in the mirror system.

I'd like to know how can I know which of the list is the primary and which is the failover or async member.

Is there a way to do it with this query? Is there another query to get this info?

Thanks a lot

Hi All!

I asked previously about the DR server in the cloud but actually, I'm curious about the backup server to use as analytics server more than for recovery in DR case.

There is a recommended practice to use an async mirror as a server for BI (InterSystems Analytics, DeepSee)

The question is if I have PRIMARY in the cloud (AWS, Google, Azure, etc) "how far" should async mirror member be placed? Same cloud, same private cloud or it doesn't matter at all for analytics purposes?

I've been trying for a while to come up with a set of tools to monitor the health of a mirror set and email a report nightly on the status of the mirror, or flag issues in real time.
Making sure that all the databases are caught up, that all the mirror members are online.

I want to use ^Mirror routine to configure mirroring. Can someone please tell what classes and methods I need to use with syntax for configuring the mirroring please OR please point me to any tutorial where ^Mirror routine is used to configure mirror.

Hello,

We had a weird behavior of task manager in mirror async backup-failover pair:

MIRROR is the best solution for almost immediate replications to a Failover Server.
The related mechanics are based on Global Journaling.

Globals hold Data and Classes and Routines and more ...
If Mirroring is in place all is in sync. With minimum delays
This is of course rather useful for code changes in Classes, Routines, ....

To what extent is Embedded Python covered by Mirroring?
Or:
What is required to Synchronize EmbeddedPython like Mirroring.

Hi,

I want to know if there is a way to manually change Primary to secondary and vice versa?

I need this becasue we backup the two VMs (primary and secondary) and my idea is to make a script to when the primary VM is going to backup with Veeam change to "backup" on the mirror.

Thanks!!!

Hi, we have mirrored databases, now we have three nodes. Primary, backup, async. They are sync by journals and with some TB each node (expensive storage).

I would like to have a scenario where the two nodes (Primary and backup) have the same amount of messages (purge task of x days) , both as failover, but the asynchronous node should have more messaging, as much as the storage allows us. We want to use this node so provider can give support(search old messages), but not have databases in production that are so large that they are hardly consulted.

Any ideas?

Hey everyone.

I have noticed that my backup mirror is warning that the MirrorDatabaseLatencyTime is having a bad time (time in ms is 3000, and warnvalue is 3000). While I look into what may be causing this latency between the two servers, I was considering if reducing the size of the journal files would improve this value in any way.

My assumption is that reducing the file size would mean that the frequency of the journal files being created would be increased, but the reduced size would mean that the transfer and application of each file would be reduced.