Readme and Release notes for release 5.0.3.0 IBM Spectrum Scale 5.0.3.0 Spectrum_Scale_Data_Management-5.0.3.0-x86_64-Linux Readme

Unless specifically noted otherwise, this history of problems fixed for IBM Spectrum Scale 5.0.x applies for all supported platforms.

Changes to the IBM Spectrum Scale 5.0.3.0 include the following:

• AFM and AFM DR-related changes

            Added a new configuration parameter - afmRefreshAsync to enable         cache data refresh operation in asynchronous mod 

• Samba

            In Spectrum Scale 5.0.3.0 the handling of the NFSv4 ACE bit "SYNCHRONIZE"         is changing. When returning ACL data to the SMB client the "SYNCHRONIZE"         bit on all allow ACEs will be passed unchanged. Prior to 5.0.3.0         "SYNCHRONIZE" has been automatically set on all allow ACEs by the SMB         component, regardless if this bit was set or cleared on the ACLs stored         in the file system.         Microsoft Windows clients require "SYNCHRONIZE" to be set for renaming         files or directories. All files written by Microsoft Windows clients have         "SYNCHRONIZE" automatically set.          If the ACLs stored in the file system are missing the "SYNCHRONIZE" bit         and hence causing access issues with Microsoft Windows clients, restoring the         pre 5.0.3.0 behavior is possible by performing the following procedure:         for each SMB share requiring the old behavior execute         /usr/lpp/mmfs/bin/net conf setparm  'nfs4:set synchronize' yes         and replace  with the share name.          For the long term it is recommended to change the ACLs for all files or         directories missing the "SYNCHRONIZE" bit instead of modifying the SMB         configuration.     

• Cloud services changes

            Auto container spillover feature         Client-assisted recalls         Microsoft Azure object storage service  

• File system core improvements

            Compatibility settings control the unit types that are returned by statfs and statvfs.            The linuxStatfsUnits attribute controls the types of units that are returned in f_bsize,            f_rsize, f_blocks, and f_bfree for compatility with earlier or later versions of statfs            and statvfs. For more information, see mmchconfig command.          zfast, alphae, and alphah libraries compress genomic data            File compression methods for genomic data include zfast compression for FASTA            and VCF formats and alphae and alphah compression for FASTQ formatted files.          The mmkeyserv command displays certificate expiration dates            The server show and client show parameters display expiration dates for the            REST certificate and the KMIP certificate.          The mmnetverify command checks RDMA connectivity            The rdma-connectivity option verifies the verbsPorts configuration and checks            node connectivity through the active InfiniBand interface.          The mmsdrrestore command recovers the CCR state in broken clusters            As an alternative to the manual procedures, the --ccr-repair option recovers            the CCR state on quorum nodes when CCR files have been lost or corrupted.          Other improvements             You can use the --use-stale-replica option for the mmfsck command to read            possible stale replica blocks from unrecovered disks.             You can build the installable package gpfs.gplbin without stopping and restarting GPFS.             I/O error checking is improved for locally attached disks of NSD servers.             The attribute forceLogWriteOnFdatasync is set to False and can no longer            be changed at the user level.  

• IBM Spectrum Scale management API changes

           Added the following API commands:            •GET: /filesystems/{filesystemName}/filesets/{filesetName}/quotadefaults            •POST: /filesystems/{filesystemName}/filesets/{filesetName}/quotadefaults            •PUT: filesystems/{filesystemName}/filesets/{filesetName}/quotadefaults            •PUT: /filesystems/{filesystemName}/mount            •PUT: /filesystems/{filesystemName}/unmount            •GET: /filesystems/{filesystemName}/quotadefaults            •POST: /filesystems/{filesystemName}/quotadefaults            •PUT: /filesystems/{filesystemName}/quotadefaults            •GET: /filesystems/{filesystemName}/quotagracedefaults            •POST: /filesystems/{filesystemName}/quotagracedefaults 

• IBM Spectrum Scale GUI changes

            Improved quota management features. The changes made to the Files  > Quotas page are as follows:           You can now define both capacity and inode quotas for users, user groups,               and filesets from the Files  > Quotas page.           Introduced Defaults tab to improve user experience for defining and enabling               default quotas for user, group, and fileset.           Introduced Settings tab. You can perform actions such as enable quota, disable quota,               set quota accounting scope, check quota, and set grace time periods.          For more information on the options that are available in the Quotas page, see Quotas.          Introduced Daily quota reports option in the Create Recipient dialog of the               Monitoring  > Event Notifications page. The recipient can be configured to               get reports if soft quota or hard quota is exceeded.         You can expand a file systems storage capacity by adding more NSDs to it.               Similarly, deleting NSDs from the file system reduces the capacity of the file               system. Use the Add NSDs or Remove NSDs options that are available in the               Actions menu of the Files  > File Systems page to expand or shrink a file system.         Added options to configure user authentication for NFS and SMB protocol user access               from the Services > File Authentication page. For more information, see File authentication.         To prevent files from being changed or deleted unexpectedly, you can use the               integrated archive mode (IAM) mode. You can set this option from the Files  > Filesets               page while creating the fileset or when you modify it.         You can modify the list of file auditing events to be included in the file audit log               by using the Edit File Audit Logging option that is available in the Actions               menu of the Files  > File Systems page.         Use the Files  > Information Lifecycle to define a migration to external pool rule to               migrate the data and metadata stored in the local pool to external pools like               tape or transparent cloud tiering.         Use the Services >  GUI >  External Authentication option to configure an LDAP-based               authentication method on an external authentication server for GUI user access management.         NFS and SMB Performance details can be easily monitored through the newly introduced               performance charts and metrics in the NFS Exports and SMB Shares pages.         The Protocols >  NFS Exports page now offers effective management of NFS client               definitions and support for pseudo paths for NFSv4.         The following navigation menu updates are made in the GUI:               Removed the Access and Settings menus.               Introduced Cluster and Support menus.               Moved File System ACL page from Access menu to Files menu.               Moved Remote Connections page from Access menu to newly introduced Cluster menu.               Moved Command Audit Log page from the Access menu to Monitoring menu.               Moved Event Notifications page from the Settings menu to newly introduced Support menu.               Grouped Diagnostic Data and Call Home pages under the new Support menu.               Moved Network page to cluster menu.  

• Installation toolkit changes

            Support for SLES 15 on x86_64 and s390x           •Significant changes in upgrade process flow:                ◦Changes to minimize I/O disruptions               ◦Upgrade support for mixed OS cluster               ◦Changes in upgrade pre-check to identify the packages that need                to be upgraded across the cluster on all nodes.                Compare the versions of the installed packages with the versions in the               repository of the packages you want to upgrade to. In a mixed               operating system cluster, the comparison is done with the package               repository applicable for the operating system running on the respective nodes.                ◦Changes in upgrade post-check to identify the packages that have not                been upgraded successfully               ◦Improved dependency check to ensure dependencies are met for each required package  

• Object changes

             Updated the mmobj command with new password keyword. 

• IBM Spectrum Scale SMB changes

             Support for SMB 3.1.1. SMB protocol version 3.1.1 is now supported with IBM              Spectrum Scale. Support is automatically enabled on new installations.              When upgrading, the support can be enabled by making the config              change: /usr/lpp/mmfs/bin/net conf setparm global 'server max protocol' SMB3_11          Enhanced the handling of the SYNCHRONIZE bit in NFSv4 ACLs. For more information,              see NFS V4 ACL Syntax.   

• Watch folder

             In IBM Spectrum Scale 5.0.3, watch folder has a clustered watch capability.          An entire file system, fileset, or inode space can be watched.  

• New subroutines

       gpfs_add_filesystem_watch. 

• Changed commands

         •mmbuildgpl       •mmchattr       •mmchconfig       •mmchfileset       •mmchfs       •mmcrfs       •mmfsck       •mmkeyserv       •mmlsattr       •mmnetverify       •mmobj       •mmprotocoltrace       •mmsdrrestore       •mmwatch