What's new in AIX 7.3
Read about new or significantly changed information for the AIX 7.3 operating system.
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December 2024
The following information is a summary of the updates made to AIX® 7.3.3 documentation. To see AIX commands specific summary of updates, see What's new in Commands. For pre-installation checks and changes, see AIX 7.3 Release Notes.
- Added information about Diffie Hellman (DH) group 20 and 21 support that is added to IPsec in the Internet Key Exchange features page.
- Added information about Auditing in the Live Update environment under the Auditing overview topic.
- Added LKU broadcast message disablement new page under the Live Update topic.
- Added information about the new di_free_minpc field that is added in the d_info structure in the d_map_init_ext Kernel Service topic.
- Added Using NIM customer object type new page under the Using NIM resources topic.
- Added a new Live Library Update (LLU) page under the Live Update topic. The LLU function eliminates downtime for workloads when the AIX operating system is updated.
- Added information about the LDR_CNTRL tunable parameter in the Miscellaneous tunable parameters topic.
- Added information about the ipsec_auto_migrate tunable parameter in the lvupdate.data file section in the Configuring resources for Live Update topic. The Live Update feature supports Internet Protocol Security (IPsec) with the help of ipsec_auto_migrate tunable parameter.
- Added information about LV encryption support for preservation and migration installation in the BOS installation options page.
November 2023
The following information is a summary of the updates made to AIX 7.3.2 documentation. To see AIX commands specific summary of updates, see What's new in Commands. For pre-installation checks and changes, see AIX 7.3 Release Notes.
- Added Sanitize operation for NVMe drives page under the Tasks and service aids topic.
- Added information about AIX_CWD_CACHE tunable parameters in the Miscellaneous tunable parameters page.
- Added a new timespec_get subroutine that retrieves the current calendar time based on the specified time zone.
- Added IPSEC_p1_sa, IPSEC_p2_sa, IPSEC_ike_ver, IPSEC_auth_type, and IPSEC_noprop_ack audit events for Internet Protocol Security (IPsec) operations in the Audit events page.
- Added information about the /etc/tunables/usermodified file in the Tunables file directory page.
- Added I/O restrictions for Power-VC managed systems in the Live Update restrictions page.
- Added audit support for the Enhanced Korn shell (ksh93) page.
- Added a new value, LARGE_PAGE_EXCLUSIVE, for the ASO_OPTIONS environment variable in the Environment variables page that enables or disables the 16 MB Multiple Page Segment Size (MPSS) page management.
- The PROC_Execute audit event can now be configured to log full file system path names for files.
- AIX multi-path IO (MPIO) is enhanced to control the I/O traffic on congested paths when Fabric Performance Impact Notification (FPIN) congestion notifications are received from fabric switches.
- IBM Security® Directory Server (ISDS) Version 6.4 is replaced with IBM Security Verify Directory (ISVD) Version 10.0.
- Added a new Object Data Manager (ODM) attribute lldp_mode to the EtherChannel device that displays the underlying adapter details in the LLDP neighbor information.
November 2022
The following information is a summary of the updates made to AIX 7.3.1 documentation. To see AIX commands specific
summary of updates, see What's new in Commands. For pre-installation checks and
changes, see AIX 7.3 Release Notes.
- The AIX operating system provides quirks to support various third-party USB mass storage devices. For more information, see the AIX USB device quirks and the USB device support topics.
- The Berkeley Internet Name Domain (BIND) that implements a domain name server for the AIX operating system, is upgraded from version 9.4.1 to 9.16.26. BIND version 9.16.26 is shipped in both Web download and base operating system for AIX 7.3.1 release. For more information, see the AIX Release Notes and the following topics: named Daemon, named9 daemon, named-checkconf command, named-checkzone, named-compilezone command, rndc-confgen command, ddns-confgen, tsig-keygen command, dig command, host9 command, nslookup command, dnssec-cds command, dnssec-dsfromkey command, dnssec-importkey command, dnssec-keygen command, dnssec-revoke command, dnssec-settime command, dnssec-signzone command, dnssec-verify command, dnssec-checkds command, dnssec-coverage command, dnssec-keymgr command, nsupdate command, rndc command.
- Added information about the -e flag in the ibv_devinfo command topic. The -e flag prints the extended group ID (GID) tables of the RDMA devices.
- Added information about the -q flag in the ofedctrl command topic. The -q flag indicates whether the kernel extension is loaded or not.
- Added information about the OFED configuration file.
- Updated the following topics with information about the Power10 processors-based servers:
- Added the lcpuid_to_bindid and bindid_to_lcpuid subroutines under Global interfaces in Perfstat API Programming. It returns the bind CPU ID and the logical CPU ID.
- Added information about Using fully qualified domain name (FQDN) or user@FQDN with pre-shared key for IKEV2.
- Added information about Configuring endpoints that are behind the NAT device under Network address translation.
- Updated information about Encrypted physical volumes.
- Added information about Creating shared memory objects with 1TB segment size. Shared memory object improves performance of processes by using large shared memory regions.
- Updated the Live Update restrictions topic.
- The network file system (NFS) client is enhanced to support file sizes that are greater than 16 TB. The current tested and supported maximum file size is 256 TB.