HP Serviceguard Storage Management Suite for VERITAS manual

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to a host. Physical storage capacity is allocated from a thin pool to the thin/thin reclaim capable LUNS only after application I/O writes.

Starting with the VxFS 5.1 SP1 release, you can tune VxFS to enable or disable thin-friendly allocations. This feature is only supported on file systems mounted on a VxVM volume.

Partitioned Directories

VxFS 5.1 SP1 allows you to create partitioned directories. For every new create, delete, or lookup thread that is created, VxFS searches for the thread's respective hash directory and performs the operation in that directory. This allows uninterrupted access to the parent directory inode and its other hash directories, which significantly improves the read/write performance of cluster file systems.

This feature is supported only on file systems with DLV 8 or later.

For more information, refer to the Veritas File System 5.1 SP1 Administrator's Guide. To locate this document, go to the HP-UX Core docs page at: www.hp.com/go/hpux-core-docs. On this page, select HP-UX 11i v3.

VxFS 5.1 SP1 on HP-UX 11i v3

For more information on features supported with VxFS 5.1 SP1 on HP-UX 11i v3, refer to the Veritas File System 5.1 SP1 Release Notes. To locate this document, go to the HP-UX Core docs page at: www.hp.com/go/hpux-core-docs. On this page, select HP-UX 11i v3.

Architecture of VxFS

HP-UX supports various file systems. In order for the kernel to be able to access these different file system types, there is a layer of indirection above them called Virtual File System (VFS).

Without the VFS layer, the kernel must know the specifics of each file system type and maintain distinct code to handle each.

The VFS layer enables the kernel to possess a single set of routines that are common to all file system types. Handling of the specifics of a file system type are passed down to the file system specific modules. The following sections describe the VxFS file system specific structures.

The following are the VxFS on-disk structures:

Superblock

A superblock (SB) resides ~8k from the beginning of the storage and tracks the status of the file system. It supports maps of free space and other resources (inodes, allocation units, and so on).

Intent Log

VxFS reduces system failure recovery time by tracking file system activity in the VxFS intent log. This feature records pending changes to the file system structure in a circular intent log. The intent log recovery feature is not readily apparent to users or a system administrator, except during a system failure. During system failure recovery, the VxFS fsck utility performs an intent log replay, which scans the intent log, and nullifies or completes file system operations that were active when the system failed. The file system can then be mounted without completing a full structural check of the entire file system. Replaying the intent log may not completely recover the damaged file system structure if there was a disk hardware failure. Hardware problems may require a complete system check using the fsck utility provided with VxFS.

Allocation Unit

Allocation units are made up of a series of data blocks. Each allocation unit typically consists of 32k contiguous blocks. Several contiguous data blocks make up an extent. The extents are used for file data storage.

Veritas File System (VxFS)

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Contents Veritas 5.1 SP1 Installation Guide Page Contents Upgrading from Previous Versions of VxFS to VxFS 5.1 SP1 Setting up the Veritas 5.1 SP1 ProductsPost Upgrade Tasks Files Added and Modified After VxFS InstallationRemoving Veritas 5.1 SP1 Products Intended Audience About this DocumentDocument Organization Typographic ConventionsRelated Information Technical SupportHP Business Support Center HP Welcomes Your Comments Veritas Volume Manager VxVM Volume Managers Supported on HP-UX 11iIntroduction OverviewVxVM Features Veritas Volume Manager VxVM Introduction # vxddladm set namingscheme=osn mode=new # vxddladm set namingscheme=osn mode=legacyVxVM 5.1 SP1 on HP-UX 11i Architecture of VxVM VxVM Objects VxVM DaemonsVxVM Storage Layouts Volume Layouts in VxVMFile Systems Supported on HP-UX 11i VxVM InterfacesSupported File Systems on HP-UX 11i v Veritas File System VxFS VxFS FeaturesVeritas File System VxFS Introduction VxFS 5.1 SP1 on HP-UX 11i Architecture of VxFS Extent Based Allocation Software Dependency System RequirementsOS Version Patch RequirementsRequired Packages for Veritas Enterprise Administrator Software Depot ContentRequired Software Base-VxTools-51 Bundle Components License BundlesVxFS-SDK-51 Bundle Components B9117EB Bundle ComponentsDisk Space Requirements for VxFS 5.1 SP1 Disk Space RequirementsDisk Space Requirements for VxVM 5.1 SP1 Disk Space Requirements for CVMInstalling the Veritas 5.1 SP1 Products Mounting the HP Serviceguard Storage Management Suite MediaInstalling Veritas 5.1 SP1 Products Installing Base-VxFS-51 Installing VxFS 5.1 SP1# swinstall -x autoreboot=true -s depot-path Base-VxFS-51 # swinstall -x autoreboot=true -s depot-pathInstalling VxVM 5.1 SP1 Installing HP OnlineJFS B3929HBInstalling Base-VxVM-51 # swinstall -x autoreboot=true -s depot-path Base-VxVM-51 Installing Full VxVM B9116EB# swintall -x autoreboot=true -s depot-path # swinstall -x autoreboot=true -s depot-path B9116EBSwinstall -x autoreboot=true -s -depotsource B9117EB Installing CVM B9117EB on HP-UX 11iPreparing the Ignite-UX Server # swverify B9116EBCreate the configuration file for the VxVM 5.1 SP1 depot Cold-Installing the ClientConfirming the Client # swreg -l depot @ /var/depots/myhpuxdepot Page Configuring Your System after the Installation Setting up the Veritas 5.1 SP1 ProductsConverting to a VxVM Root Disk # vxvol -g diskgroup startallStarting and Enabling the Configuration Daemon Starting the Volume I/O Daemon Enabling the Intelligent Storage Provisioning FeatureEnabling Cluster Support in VxVM Verifying Existing Shared Disks Configuring New Shared DisksUpgrading in a Clustered Environment with FastResync Converting Existing VxVM Disk Groups to Shared Disk Groups# vxdg -s list # vxdg listInitializing VxVM Using the vxinstall Utility Setting Up VxVM 5.1 SP1# insf -C disk Moving Disks Under VxVM Control# vxdisk scandisks Setting Up a Veritas Enterprise Administrator Server# vxdiskadm # /opt/VRTSob/bin/vxsvcctrl statusSetting Up a Veritas Enterprise Administrator Client Setting up and Managing VxFS 5.1 SP1Creating a VxFS File System Identifying the Type of File SystemCluster Environment Requirements Setting Environment VariablesMounting a VxFS File System Displaying Information on Mounted File System# vxdg bootdg # vxupgrade -n 4 dirname # vxupgrade -n 3 dirnameUpgrading from Previous Versions of VxFS to VxFS 5.1 SP1 # bdf# vxupgrade -n 5 mountpoint # vxupgrade -n 6 mountpoint # vxupgrade -n 5 mountpoint# opt/VRTS/bin/vxfsconvert volname # fsck -F vxfs -y -o full volname# /opt/VRTS/bin/vxfsconvert volname # vxupgrade -n 6 mountpoint # vxupgrade -n 7 mountpoint# bdf # vxupgrade -n 7 mountpoint # vxupgrade -n 6 mountpoint # vxupgrade -n 7 mountpoint # vxupgrade -n 7 mountpoint # vxupgrade -n 8 mountpoint Upgrading from Previous Versions of VxVM to VxVM 5.1 SP1 Determining VxVM Disk Group VersionVxVM Disk Group Version # vxdg upgrade diskgroup Native Multipathing with Veritas Volume Manager# vxdg list diskgroup # vxvol -g diskgroup stopall# vxddladm rmforeign blockdir=/dev/disk chardir=/dev/rdisk VxVM vxddladm Info V-5-1-0 Please reboot the systemFollowing messages are displayed # swinstall -x autoreboot=true -s depotpath Base-VxVM-51 # swinstall -x autoreboot=true -s depotpath Base-VxVM-51 # swinstall -x autoreboot=true Base-VxVM-51 # swinstall -x autoreboot=true Base-VxVM-51 Robustness Recommendations DmplunretrytimeoutRobustness Recommendations Optional Configuration Steps Post Upgrade TasksUpgrading Disk Layout Versions Upgrading VxFS Disk Layout VersionsUsing the vxupgrade Command Using the vxfsconvert CommandUpgrading the VxVM Cluster Protocol Version Requirements for Upgrading to Disk Layout VersionUpgrading VxVM Disk Group Versions Setting the Default Disk GroupUpdating Variables Upgrading the Array Support LibraryConverting from QuickLog to Multi-Volume Support Moving VxVM Volumes to LVM Volumes Removing Veritas 5.1 SP1 ProductsRemoving VxVM Removing Plexes Removing VxFS # swremove -x autoreboot=true B9117EB Removing the Veritas Enterprise Administrator VEA ClientRemoving CVM # /opt/VRTS/bin/vxsvcctrl stopFiles Added After VxFS Installation Files Added and Modified After VxFS InstallationEtc/MANPATH Files Modified After VxFS Installation5900-1514
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