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InterSystems has corrected an issue that can cause InterSystems IRIS® and Caché to not take advantage of large pages for shared memory on Windows, even though these products report that large pages are allocated. This can have detrimental effects on system performance.

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InterSystems Official
· Mar 12, 2020
InterSystems COVID-19 Update

In light of the COVID-19 situation worldwide, InterSystems is working to ensure continuous support for our customers, promote the health and well-being of our employees, and protect the communities where we live and work. Please view our statement and frequently asked questions.

In addition, we have also established a special email address, COVID-19@InterSystems.com, should you have any questions or concerns.

As we have for 41 years, we stand by our commitment to customers and are prepared to support you during this challenging time.

Sincerely,

John Paladino

Vice President, Client Services

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InterSystems Official
· Sep 24, 2018
Advisory: VMWare vSAN and Data Integrity

September 24, 2018 – Advisory: VMWare vSAN and Data Integrity

Clients running vSAN 6.6 or later should review a very important article that VMware published on September 21, 2018. The article describes the possibility of file system and database corruption, which can lead to outages and possible data loss, and we believe that some of our clients have encountered this issue. Therefore, we encourage you to act on this as soon as possible.

The VMWare knowledge base article is titled:

Virtual Machines running on VMware vSAN 6.6 and later report guest data consistency concerns following a disk extend operation (58715)

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July 27, 2017 – Alert: Linux Defects Can Corrupt Mirror Copies of Journal Files

InterSystems has encountered defects in Linux which can corrupt copies of journal files that are generated on a mirror backup or async member; this occurs only in certain specific configurations. The original mirror journal file created on the primary member is not affected.

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June 26, 2017 – Alert: Data Corruption with Mixed Endian Mirror Shadowing

InterSystems has corrected a defect that may result in corruption of Unicode data on a shadow system whose source is an async mirror member.

This defect affects all currently released Caché, Ensemble, and HealthShare distributions beginning with version 2012.2.0. All platforms and operating systems are affected.

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InterSystems has corrected a defect that may result in missing updates when utilizing Caché online backup.

This defect is present in all Caché and Ensemble versions 2015.1.x, 2015.2.x and 2016.1.x, and all HealthShare distributions based on those versions. It affects all platforms and operating systems except backups of OpenVMS cluster databases.

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InterSystems Official
· Aug 24, 2016
Alert: Database Compaction

August 24, 2016 – Alert: Database Compaction

This is an addendum to the Alert published on October 14, 2015 – Alert: Database Defragmentation.

That alert indicated that the database defragmentation utility in 2014.1 and higher, on all platforms except OpenVMS, could cause database degradation and the correction JO2871 is available to clients upon request and would be included in future releases. The correction was included in 2015.1.3, 2015.2.2 and 2016.1.

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