ONCplus B.11.31.
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Table of Contents 1 ONCplus Release Notes...............................................................................................5 Announcement.......................................................................................................................................6 Availability of ONCplus as an ISU....................................................................................................6 NIS+ Obsolescence Notice..................................................................
List of Tables 1-1 4 ONCplus Software Fixes.................................................................................................................
1 ONCplus Release Notes This document contains the most recent product information pertaining to the Open Networking Computing (ONC) product, version B.11.31.04, which is supported on the HP-UX 11i v3 operating system. This document addresses the following topics: • • • • • • • • • • “Announcement” (page 6) “Overview” (page 6) “What's New in ONCplus B.11.31.04” (page 7) “Fixes in ONCplus” (page 8) “Installation Information ” (page 10) “Features Introduced in ONCplus B.11.31.
Announcement This version of ONCplus (B.11.31.04) is supported on systems running the HP-UX 11i v3 operating system. Availability of ONCplus as an ISU Prior to the HP-UX 11i v3 release, ONC was delivered as a core product called NFS. Core products cannot be released independent of the operating system. Any changes (defect fixes, for example) to core products are only available to customers by installing HP-UX patches. For HP-UX 11i v3, ONCplus is available as an Independent Software Unit (ISU).
ONC consists of the following components: • Network File System The Network File System (NFS) is a distributed filesystem that provides transparent access to files and directories that are shared on remote systems. • AutoFS AutoFS is a client-side service that enables automatic mounting and unmounting of filesystems. • CacheFS The Cache Filesystem (CacheFS) is a general purpose filesystem caching mechanism that improves the performance of client side applications when working with NFS servers.
• character limit to be exceeded even with just 20 groups, and in that case, such long records will not be included in the NIS database. NIS builds a database containing information about user group membership, called netid. NIS will include only the first 20 supplementary user groups in this database. This is usually used in conjunction with ONC RPC, where only the first 16 groups are significant. NIS netid maps will support only 20 user supplementary groups for backward compatibility.
Table 1-1 ONCplus Software Fixes (continued) CR ID Description ONCplus Version QXCR1000764069 Added support for SecureNFS in a Serviceguard environment. B.11.31.03 QXCR1000764257 An NFS server panics when using a public filehandle for a lookup. B.11.31.03 QXCR1000771618 There is a potential race condition on an NFSv4 client using direct I/O that can result in a hang. B.11.31.03 QXCR1000770472 NFS READDIRPLUS returns no entries when rsize is set too low. B.11.31.
Table 1-1 ONCplus Software Fixes (continued) CR ID Description ONCplus Version QXCR1000585874 The nfsstat command does not display access, close, and commit values B.11.31.01 for NFSv4 when used with the -c, or -s options . QXCR1000585903 Using kctune to change NFSv4 parameters causes a panic. QXCR1000585959 Users cannot access an NFS mounted file system in PAM enabled Kerberos B.11.31.01 systems. QXCR1000586940 The xdr_setpos function in libnsl.1 does not work properly.
6. Enter the following command to install the product on a stand-alone system: swinstall -x autoreboot=true -s \ /tmp/ONCplus_B.11.31.04.depot ONCplus NOTE: ONCplus contains kernel filesets. Thus swinstalling the product will result in a system reboot after the installation is complete. Verifying ONCplus B.11.31.04 Installation To verify if the ONCplus B.11.31.04 installation is successful, follow these steps: 1. Issue the following command: swverify ONCplus If ONCplus B.11.31.
NOTE: You can download ONCplus from the ONCplus web page http://software.hp.com, or from the media you originally used to install your system. 3. To revert to the previous version of ONCplus enter the following command: swinstall -x allow_downdate=true -x autoreboot=true \ -s /tmp/ONCplus_B.11.31.depot ONCplus NOTE: ONCplus contains kernel filesets. Thus swinstalling the product results in a system reboot after the installation is complete. Features Introduced in ONCplus B.11.31.03 ONCplus B.11.31.
New NFS Features in ONCplus B.11.31.03 NFS introduces the following features for NFSv4: • File Delegation with Local Access NFSv4 clients support delegation on HP-UX 11i v3. However, until ONCplus B.11.31.03, NFSv4 servers supported delegation with the caveat that no local file access should occur on any delegated file. For example, if the server grants a delegation to the file “/a/b/foo” then any local users on the server need to avoid accessing file “foo” while the delegation is in effect.
occupied by the cache directory (also known as the working set size). This command uses the logfile created by the cachefslog command to display the information. The cachefswssize command, used with the -a option, displays the information in ASCII format. New NIS Features in ONCplus B.11.31.02 NIS introduces the following features: • Support for IPv6 Protocol The NIS clients and servers are now IPv6 enabled.
The COMPOUND procedure decreases transport and security overhead because of fewer over-the-wire trips between the client and the server. This feature is transparent to the user. — Delegation In NFSv4, the server can delegate certain responsibilities such as, OPEN, CLOSE, LOCK, LOCKU, READ, and WRITE to the client. Delegation enables a client to locally service operations without immediate interaction with the server. Delegations can be revoked by the server.
• Client Failover When an NFS server fails, the client accessing the shared files on that server can no longer access the shared files. If client failover is enabled, the client is automatically switched to an alternate server, which is a replica of the server that failed. The client continues to access shared files, without being aware of the switch. NOTE: Client failover support is limited to read-only mounts or static filesystems that are not modified often.
— — — — — — • NFS (All versions including NFSv4) CacheFS HFS VxFS CIFS AutoFS Secure NFS Support If the NFS client supports mounting of secure directories, AutoFS supports Secure NFS filesystems. • IPv6 Support AutoFS provides support for mounting filesystems over IPv6 transports. New CacheFS Features in ONCplus B.11.31_LR CacheFS supports the following features: • Complete Binary Caching CacheFS is commonly used to manage application binaries.
NOTE: • Consistency is not checked at file open time. Switching Mount Options You can switch between mount options without deleting or rebuilding the cache. For instance, you can switch from default to non-shared, or from noconst to demandconst mount options without recreating the cache. • Support for Large Files and Large Filesystems CacheFS supports the maximum file and filesystem sizes supported by both the underlying front filesystem in which the cache resides and the back filesystem.
