While the integrity of Caché and InterSystems IRIS databases is completely protected from the consequences of system failure, physical storage devices do fail in ways that corrupt the data they store. For that reason, many sites choose to run regular database integrity checks, particularly in coordination with backups to validate that a given backup could be relied upon in a disaster.

We are excited to announce a new part of InterSystems documentation that makes it easier to upgrade InterSystems IRIS® data platform, InterSystems IRIS® for Health™, or HealthShare® Health Connect. The Upgrade Impact Checklist at https://docs.intersystems.com/upgrade shows you all the things you need to consider – and only the things you need to consider – in an upgrade between any two versions.

One of the topics that comes up often when managing Ensemble productions is disk space:

The database (the CACHE.DAT file) grows in a rate that was unexpected; or the Journal files build up at a fast pace; or the database grows continuously though the system has a scheduled purge of the Ensemble runtime data.

It would have been better if these kind of phenomena would have been observed and accounted for yet at the development and testing stage rather than on a live system.

For this purpose I created a basic framework that could aid in this task.

We've been noticing that we're getting this (https://community.intersystems.com/post/cach%C3%A9-sql-error-odbc) error more frequently and having to constantly purge cached queries in order to resolve it. Is there a way to avoid the issue in the first place?

thanks!

Hello,

Hello Community,

I got the below error while creating a new database.

My original ZAUTHENTICATE.mac to use Delegated sign on did not include GetCredentials(), however I am being told it probably should have it so I am eliminate an error I am seeing when trying to troubleshoot the ZAUTHENTICATION. I am trying to add the GetCredentials() from the documentation to the existing ZAUTHENTICATE.mac but I am getting an error

I found myself in the not-so-comfortable situation of working with a Linux system on which someone had accidentally disabled user access to the Linux shell. HealthConnect was running, servicing hundreds of interfaces. To resolve the access issue, though, we needed to bring the host down for the application of a fix.

Without the shell, the iris command is not available to control the instance, so we were faced with the potential of shutting down the server ungracefully. We wanted to avoid that if possible ...

Myself and the other Technology Architects often have to explain to customers and vendors Caché IO requirements and the way that Caché applications will use storage systems. The following tables are useful when explaining typical Caché IO profile and requirements for a transactional database application with customers and vendors. The original tables were created by Mark Bolinsky.

In future posts I will be discussing more about storage IO so am also posting these tables now as a reference for those articles.

The steps are as follows：

1. create global

For I=1:1:200 Set ^ABC(I)=""
For I=1:1:200 Set ^XYZ(I)=""
For I=1:1:100 Kill ^ABC(I)

2. create ZJRNFILT

ZJRNFILT(jid,dir,glo,type,restmode,addr,time) /*Filter*/
Set restmode=1 /*Return 1 for restore*/
If glo["^ABC",type="K" Set restmode=0 /*except if a kill on ^ABC*/
Quit
;

3. restore

In this post, I am going to detail how to set up a mirror using SSL, including generating the certificates and keys via the Public Key Infrastructure built in to Caché. The goal of this is to take you from new installations to a working mirror with SSL, including a primary, backup, and DR async member, along with a mirrored database. I will not go into security recommendations or restricting access to the files. This is meant to just simply get a mirror up and running.

Hi guys, I'm helping one of our customer to use unattended install to standardize their deployment. I'm using Unattended Installation and Installation Manifest.

Although I can use the combination to install HealthConnect and then create namespaces and DBs as they need, there are still several tasks that I did not find the solution yet. As following:

1. Configure mirrors

2. Set the directory to store journals

Is it possible to abort system start during SYSTEM^%ZSTART?

If some conditions are not met, I want to shut down IRIS instead of continuing with the startup.

No reason apparently,

to many times executed :

[Database.SparseDBExpansion] Expanding capacity of sparse database /usr/irissys/mgr/iristemp/ by 1000 MB.

no details on audits, no traffic for that, no process to justify this, some ideas ?

IRIS for UNIX (Red Hat Enterprise Linux for x86-64) 2020.1 (Build 215U) Mon Mar 30 2020 20:23:13 EDT