HP JFS 3.3 and HP OnLineJFS 3.3 VERITAS File System 3.3 System Administrator's Guide

Appendix A 155
Kernel Messages
Kernel Messages
specified by the vxfs:vxfs_ninode and vxfs:vx_bc_bufhwm
parameters exceeds available memory; the system may hang
under heavy load
• Explanation
The value of the system tuneable parameters—vx_ninode and
vx_bc_bufhwm—add up to a value that is more than 66% of the kernel
virtual address space or more than 50% of the physical system
memory. VxFS inodes require approximately one kilobyte each, so
both values can be treated as if they are in units of one kilobyte.
• Action
To avoid a system hang, reduce the value of one or both parameters to
less than 50% of physical memory or to 66% of kernel virtual memory.
For more information on performance and tuning, see Chapter 5 ,
“Performance and Tuning”.
NOTE The tuneable parameter vx_ninode is used to set the value of
vxfs_ninode.
Message 070 WARNING: msgcnt x : vxfs: mesg 070: checkpoint
checkpoint_name removed from file system mount_point
• Explanation
The file system ran out of space while updating a checkpoint. The
checkpoint was removed to allow the operation to complete.
• Action
Increase the size of the file system. If the file system size cannot be
increased, remove files to create sufficient space for new checkpoints.
Monitor capacity of the file system closely to ensure it does not run
out of space. See fsadm_vxfs(1M) for more information.
Message 071 NOTICE: msgcnt x : vxfs: mesg 071: cleared data I/O error
flag in mount_point file system
• Explanation
The user data I/O error flag was reset when the file system was
mounted. This message indicates e that a read or write error occurred
(see “Message 038”) while the file system was previously mounted.