Red Hat GLOBAL FILE SYSTEM 4.7 Guida Utente Scaricare il pdf (Pagina 45)

Building your own client kit 3–11

• listman-2.4.21-chaos.patch

Adds 2.6 kernel-compatible list utilities for use in Lustre.

• bug2707_fixed-2.4.21-rh.patch

Provides a bugfix for a race between create and chmod which can cause files to be inaccessible.

• inode-max-readahead-2.4.24.patch

Allows individual file systems to have varying readahead limits. Used by Lustre to set its own

readahead limits.

• export-show_task-2.4-rhel.patch

Exports the show_task kernel symbol.

• compile-fixes-2.4.21-rhel_hawk.patch

Fixes several kernel compile-time warnings.

• grab_cache_page_nowait_gfp-rh-2.4.patch

Provides a bug fix for allocation deadlock in VM subsystem.

• remove-suid-2.4-rhel.patch

Security fix for suid-related issues.

• nfsd_owner_override.patch

Fix for NFS exporting of Lustre to an HP-UX client.

• fsprivate-2.4.patch

Adds a field required by Lustre to the struct file.

Note that the three mkspec patches do not patch the kernel; they only patch the utilities that are used to

build an RPM file with the rpms command.

3.2.6 Additional patches

The patches subdirectory in each of the client_enabler/src/arch/distro directories on the HP

StorageWorks Scalable File Share Client Software CD-ROM contains additional required patches for that

architecture and distribution combination. These patches are applied as part of the build process. The

following are the patches required for an RHEL3 system:

• nfs_32k_fix.patch

This patch can provide increased NFS performance for a Lustre client that is exporting a Lustre file

system as an NFS server to client nodes that are not running the Lustre protocol. The patch increases

the maximum amount of data transferred per transaction.

• NFS_POSIX_lock_for_distributed_servers.patch

This patch allows an NFS client mounting a Lustre file system served from a Lustre client to implement

the POSIX locking API. It changes the NFS lockd daemon to allow it to interact correctly with an

underlying Lustre file system. The patch is required for NFS serving from a Lustre client.

• e1000_irq.patch

Allows setting of driver irq in netdev structure for balancing Lustre I/O schedulers.

• arp_ignore-2.4.21-32.diff

Prevents client node from replying to an ARP request if the request is for an IP address configured on

the client node on a different interface than the interface receiving the request.

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Red Hat GLOBAL FILE SYSTEM 4.7 Guida Utente Pagina 45