Carbonite Server
Agent for AIX
Version 9.00.1140
Release Notes, July 4, 2022
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Contents
1	Overview
1.1	Release History
1.2	Compatibility
1.3	Supported Platforms
2	New FEATURES
3	INSTALLATION NOTES
3.1	Installation Requirements
3.2	Install
3.3	Upgrade
4	FIXES AND KNOWN ISSUES
4.1	Fix
4.2	Known Issues
5	PRODUCT SUPPORT
5.1	Technical Support
5.2	Product Updates
5.3	Documentation

© Carbonite Inc. 2022. All Rights Reserved.
The release notes are governed by the Terms of Service found at https://www.carbonite.com/terms-of-use/carbonite-general-enterprise-terms-of-service. Carbonite, at its sole discretion, reserves the right to modify or revoke these Release Notes at any time, without notice.
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1	Overview
The Agent for AIX is installed on each AIX system that you want to protect. Using Portal, you can manage the agent, back up data to a vault, and restore data from the vault.
Important: To take advantage of new features and important security enhancements, we highly recommend using Portal to manage the AIX Agent. If you must manage the agent using the legacy Windows CentralControl, please contact Support.
1.1	Release History
Version 9.00.1140, July 4, 2022
1.2	Compatibility
Portal	AIX Agent 9.00 is supported with Portal version 9.00 or later.
Important: This agent version checks the public key of the Portal certificate when it tries to connect to Portal. If users are hosting their own Portal, we recommend updating the Portal certificate before new agents are registered to Portal or existing agents are upgraded to version 9.00.	
Windows CentralControl	Important: We highly encourage using Portal to manage agents instead of the legacy Windows CentralControl. New features and important security fixes are available in Portal, but not in Windows CentralControl. If you must manage agents using Windows CentralControl, please contact Support.
Important: Changing job configurations using Portal and Windows CentralControl alternately is not supported. Do not manage the same Agent using both Portal and Windows CentralControl. 	
Director	AIX Agent 9.00 is supported with Director version 8.62, 8.61 and 8.56 vaults. 	

1.3	Supported Platforms
This Agent is supported on the following AIX versions:
•	AIX 7.3 TL0 or later
•	AIX 7.2 TL4 or later
•	AIX 7.1 TL5 or later
The IBM XL C/C++ runtime environment for AIX version 16.1.0.7 or later must be installed. For more information, see Installation Requirements.
2	New FEATURES
Support for hourly backups
When AIX Agent 9.00 is backing up data to a Director 8.6x vault, you can schedule a backup job to run multiple times per day, as often as hourly.
To schedule a backup job to run multiple times per day, create an intra-daily schedule using Portal. Each backup job can have one intra-daily schedule. If the job has other schedules, the intra-daily schedule has the lowest priority.
Two retention types are available for intra-daily schedules: 24-Hours (where each backup is kept for at least 24 hours and at least one backup is stored online) and 48-Hours (where each backup is kept for at least 48 hours and at least one backup is stored online). You cannot add, change or delete retention types for intra-daily schedules.
To reduce schedule overloads, backups that are scheduled to run multiple times per day are skipped in the following cases:
•	When an agent starts a backup that is scheduled to run multiple times per day, and a backup is already running for the job.
•	When an agent contacts a version 8.6x vault to start a backup that is scheduled to run multiple times per day, and the vault is busy with high-priority maintenance for the job data.
TLS certificate pinning for agent-vault communication
TLS certificate pinning for agent-vault communication is a new security feature that is available beginning with AIX Agent 9.00 and Director 8.6x vaults.
When an AIX agent tries to connect to a vault where certificate pinning is enabled, it checks whether the public key of the vault certificate is the same as when the agent previously connected to the vault (e.g., to run a backup or restore). If the public key of the vault certificate is different, the agent reports a certificate failure and will not connect to the vault unless you re-pin the certificate using Portal.
The Current Snapshot on the Portal dashboard shows the number of agents that have certificate failures, and the Status column on the Computers page indicates when an agent reports a certificate failure. If the vault certificate change was expected, you can re-pin the vault certificate using the Computers page in Portal. Backups and restores can then continue.
Centrally-configured email notifications
When email notifications are set up centrally in Portal (instead of separately for each computer), backup notifications and job encryption password change notifications are now sent for AIX agents. 
Security enhancements
Security enhancements have been added in this AIX Agent version.
3	INSTALLATION NOTES
3.1	Installation Requirements
•	CPU - IBM Power5 or greater
•	RAM - Minimum of 1 GB recommended
•	For a new installation, we recommend at least 1 GB of disk space in the installation directory (/opt, by default). 
For an upgrade, we recommend at least 700 MB of disk space in the installation directory in addition to the current installation size.
By default, AIX systems have very small volumes. Ensure that the volume for the AIX Agent is large enough and that the /opt file system is large enough to facilitate the installation. If the available disk space is insufficient for a complete installation, the installation directory will roll back to its original state. 
•	A TCP/IP stack
•	The IBM XL C/C++ runtime environment for AIX version 16.1.0.7 or later must be installed. You can download this package (xlc.rte.16.1.0.08.aix71TL4-73.feb2022.ptf or later) from IBM Fix Central. 
Note: This runtime package includes a new library (libc++.a). After installing this package, check that the following files are present on the system:
•	/usr/lib/libc++.a
•	/usr/lpp/xlC/lib/libc++.a
•	/usr/lpp/xlC/lib/aix61/libc++.a
3.2	Install
The AIX Agent installation kit is provided in the following file: Agent-AIX-9.00.1140.tar.gz
The default installation directory for this Agent version is /opt/BUAgent.
Binary File 	md5sum Value	
AgtUpgd 	79d04ed13b6612330241e2ae212ea781	
VV	d221369d64406e1ce250109a7ece7b7f	
VVAgent	d0d6b9b14efe2bc37f75f5ee18cb9b07	
accesscontrol	3004f9335f66efd6cf05b93c51000fe9	
buagent 	f8e385a53cf9c1175907ac5245df9912	
libcrypto.a	7586496029805c22faaea7a0a7b5d672	
liblz4.so	57edb2dc45807480224a85376a185d22	
libprotobuf.a	b04a06ffa80c0aef93542c758ed7cf33	
libssl.a	7be556eb161eb5c2825b990674afe937	
libstdsoap2.a	3594315b55fe90c115d7beedb8808be3	
register	91055e9754681611fe49a5c3effebcad	
set_language	7eb37edfa0c51f1199984f014a21747c	
uninstall.sh	003f6af372258351590cd84403baff8e	
xlogcat	bb8e6941defd3f4dd797eff145be98f1	
xlogmore	8434057b4c93f379f512003d6a0674cd	

3.3	Upgrade
You can upgrade the following AIX Agent versions to version 9.00:
•	Version 7.51 
•	Version 7.50
•	Version 6.01
To upgrade a previous AIX Agent version to version 9.00, first upgrade the Agent to version 6.01.
Before upgrading an AIX Agent to version 9.00, make sure that all connected vaults are supported with AIX Agent 9.00. If an agent is registered to one or more unsupported vaults, backup jobs might fail after the upgrade. For supported Director versions, see Compatibility.
4	FIXES AND KNOWN ISSUES
4.1	Fix
When an SSI file reaches 1 GB in size during a backup to Directory on Disk, a new SSI file with a numeric extension (e.g., .0002, .0003) is created until the job finishes. In previous AIX Agent versions, a backup to Directory on Disk would fail when an SSI file reached 1 GB in size. (EV-21031)
4.2	Known Issues
If the Agent is running on a WPAR, and you try to install the Agent on the global LPAR where an Agent is not installed, the installer detects that the Agent is running and asks you to stop the services.
WORKAROUND: When installing the Agent on the LPAR, when you are prompted to stop the Agent, enter Y. The Agent installation will continue but Agent services on the WPAR will not stop and running jobs will not be affected. (EV-21497)
If an NFS mount is disconnected while an NFS backup job is running, the backup job may become unresponsive. (EV-19348)
This version of the Agent does not support EFS:
•	The Agent backs up encrypted files in plain or unencrypted form. Attributes such as cipher algorithms and EFS access lists are not backed up.
•	When the Agent backs up encrypted directories (i.e., with inheritance set), the inheritance is removed from the directories.
•	Files that are restored to encrypted directories will become encrypted using the cipher algorithm that previously applied to the directory.
Full system restores fail when the Technology Level (TL) of the target system is lower than the TL of the source system. For successful system restores, the TL of the target system must equal or surpass the TL of the source system. (14847)
You may be unable to register to the vault with the AIX Agent when multiple IPs are bound to one NIC. 
WORKAROUND: Set the maximum buffer size for "sb_max" (for a TCP or UDP socket) in the TCP parameters to a value larger than 512 kB. You can display the sb_max value using "no -o sb_max". Refer to the MAN pages for more information about the "no" command and how to change the value. (8993) 
5	PRODUCT SUPPORT
5.1	Technical Support
Complete contact information for your service provider is available under the Help Support menu.
5.2	Product Updates
Product updates are available from your provider.
5.3	Documentation
The following documentation is available for the agent:
•	Agent for AIX User Guide
•	Agent for AIX release notes (this document)
•	Portal online help
All documentation is available from your service provider.