Veritas File System 5.0 Release Notes HP-UX 11i Version 2 First Edition Manufacturing Part Number: 5991-5509 September 2006 © Copyright 2006 Hewlett-Packard Development Company, L.P.
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Contents 1. Veritas File System 5.0 Release Notes Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 New Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Preface This document provides information on Veritas File System 5.0. Publication History The manual publication date and part number indicate its current edition. The publication date will change when a new edition is released. The manual part number will change when extensive changes are made. To ensure that you receive the new editions, you should subscribe to the appropriate product support service. See your HP sales representative for details.
http://itrc.hp.com • For technical support see: http://welcome.hp.com/country/us/en/support.html Typographic Conventions Table 1 describes the typographic conventions used in this document. Table 1 Typographic Conventions Typeface Usage Examples monospace Computer output, files, directories, software elements such as command options, function names, and parameters Read tunables from the /etc/vx/tunefstab file.
• Veritas 5.0 Installation Guide • Veritas File System 5.0 Administrator’s Guide • Veritas Volume Manager 5.0 Release Notes • Veritas Volume Manager 5.0 Troubleshooting Guide • Veritas Volume Manager 5.0 Migration Guide • Veritas Volume Manager 5.0 Administrator’s Guide • Veritas Enterprise Administrator User Guide NOTE The latest version of the Veritas File System 5.0 Administrator’s Guide is available at http://docs.hp.com.
1 Veritas File System 5.0 Release Notes This document provides information on Veritas File System 5.0 . HP recommends that you upgrade your OS to HP-UX 11i Version 2 September 2006 before installing VxFS 5.0. This following topics are discussed: • Product Description • New Features • System Requirements • End of Support • Fixed Issues • Known Issues Product Description The Veritas File System, or VxFS, is an extent-based, intent logging file system.
Veritas File System 5.0 Release Notes New Features The following new command is associated with this feature: fcladm : The fcladm command performs online administration functions for the Veritas File System File Change Log (FCL) feature. This includes operations such as activating, deactivating, and removing the FCL, specifying the set of events for tracking, saving and, restoring the FCL file for off-host processing. Thefcladm command supports creating File Change Log of version 3 or 4.
Veritas File System 5.0 Release Notes New Features fsvmap: This command determines which data file is resident on a given volume for a multi-volume file system. This command recovers only the affected files when an unprotected volume is permanently lost. • Large File Systems and Large File Support The VxFS 5.0 release is the first release to support Disk Layout Version 7. File system up to 256TB in sizecan be created on Disk Layout Version 7.
Veritas File System 5.0 Release Notes New Features NOTE • CDS feature is not available with Base-VxFS and HP OnlineJFS bundles.To enable the CDS feature, an additional license is required. Concurrent I/O Concurrent I/O (VX_CONCURRENT) allows multiple processes to read or write to the same file withoutblocking other read () or write () calls. POSIX semantics requires read() and write() calls to be serialized on a file with other read() and write() calls.
Veritas File System 5.0 Release Notes New Features The multi-volume file system (MVFS) support enables several volumes to be represented by a single logical object. MVFS availability allows you to mount a multi-volume file system even if the component data-only volume is missing or becomes unavailable. Any I/O error on a data-only volume will not affect access to non-data-only volumes. In addition, all VxFS operations that do not access the missing data-only volume will function normally.
Veritas File System 5.0 Release Notes System Requirements System Requirements Software Requirements • OS Version: HP-UX 11i Version 2.0 September 2006. • Required Patches: — FEATURE 11i bundle (B.11.23.0609.051 or later) includes the patches required by the Veritas 5.0 products. — PHCO_34191: This patch is required for EnableVxFS. — EnableVxFS: This bundle contains the following enhancement products: FSLibEnh Enhancement to LIBC libraries to understand VxFS disk layout Versions 6 and 7.
Veritas File System 5.0 Release Notes End of Support NOTE You can download the patches PHCO_35304, and PHCO_35130, from http://itrc.hp.com If LVM is used the user needs to install the following patches as a safeguard for potential data corruption. • LVM The default disk layout of VxFS 5.0 is version 7. When reducing a volume, LVM checks on the volume to prevent part of the existing filesystem from getting lost.
Veritas File System 5.0 Release Notes Compatibility with previous versions of VxFS • Veritas File System 4.1 is the last major release to support QuickLog. The Version 6 disk layout does not support QuickLog. The functionality provided by the Veritas multi-volume support feature replaces most of the functionality provided by QuickLog. • CFS and snapshot combined support will not be available in future Veritas releases.
Veritas File System 5.0 Release Notes Features no Longer Supported Features no Longer Supported • Version 4 and Version 5 file system disk layouts for shared (cluster) mounts VxFS 5.0 supports shared (cluster) mount only for file systems with disk layout 6 or 7.
Veritas File System 5.0 Release Notes Known Issues Known Issues • Applications using statvfsdev (3C) interface The applications that use the statvfsdev (3C) interface on a device name need to relink with the new LIBC to be able to understand the Disk Layout Version 6 and 7. If the applications are not relinked, they cannot recognize a file system with Disk Layout Version 6 or Disk Layout Version 7. However, they would continue to recognize file systems with Disk Layout Version 4 and 5.
Veritas File System 5.0 Release Notes Known Issues the size of the physical memory on the system. On systems with a RAM size of less than or equal to 1 GB per CPU, you can manually tune down vx_ninode to a value not less than that of nfile (nfile is an HP-UX tunable that represents the maximum number of file descriptors). • Tuning down the buffer cache VxFS 5.0 implements a private buffer cache to use exclusively for metadata.
Veritas File System 5.0 Release Notes Known Issues The fsadm command cannot truncate a directory if it has only one extent that is more than two blocks in length, even if all the directory entries are deleted. • Inode limitation on file systems without large file support For a file system to have more than 8 million inodes, you must create it using the largefiles option of mkfs. The fsadm utility can also be used to set the largefiles flag on the file system.
Veritas File System 5.0 Release Notes Known Issues of 512K per 1 TB for an 8K block size file system (4 MB per 1 TB for a 1K block size file system). Therefore, large file systems must be mounted only on systems that have sufficient memory. The memory requirements for mounting large file systems are shown in the tables below.
Veritas File System 5.0 Release Notes Known Issues • Some disk quota operations do not function on NFS When VxFS file systems are exported via NFS, quotas on the file system apply to users when accessing the file system from NFS clients. However, the HP-UX quota commands on the NFS client cannot be used to edit quotas. The VxFS quota commands can be used on the server to edit quotas. • Cross-Platform Data Sharing (CDS) External Quota File: CDS does not support converting the external quota file.
Veritas File System 5.0 Release Notes Known Issues • PHCO_33308 required for LVM commands to recognize disk layout Version 7 When reducing a volume, LVM checks the volume to prevent any part of the existing file system from being thrown away. Likewise, when an LVM physical volume is created, LVM ensures that it is not clobbering an existing file system. However, LVM does not recognize a VxFS 5.0 file system with Disk Layout Version 7, which is the default Disk Layout Version in VxFS 5.0.
Veritas File System 5.0 Release Notes Known Issues — For the Remount Storage Checkpoint operation, the More info link on the second wizard page does not function properly for cluster file systems. — For the Unmount Storage Checkpoint operation, the More info link on the second wizard page does not function properly for cluster file systems.
