Information about cdm probe and inode monitoring support

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)
• CA Unified Infrastructure Management On-Premise (Nimsoft / UIM)
• CA Unified Infrastructure Management SaaS (Nimsoft / UIM)

Issue/Introduction

We need some information about the CDM probe and Inode monitoring.
Can you please tell us what is exactly the command used by the probe to retrieve the Inode information?

Environment

• Component: UIM - CDM WITH IOSTAT

Resolution

We support "Inode" monitoring ONLY on non-Windows machines as described below,

statfs() or statvfs() or statvfs64() system library functions are used to calculated QOS_INODE_USAGE on all supported AIX5, HPUX, Solaris and Linux OSes.

tru64_df_v5 or tru64_df_v2 system commands are used to calculated QOS_INODE_USAGE in Tru64 Unix platform


System Library Functional Prototype and Structure Variables:

AIX5: (Supported from Version 5)
Using statfs(const char *path, struct statfs *fsd) function

PATH: is the pathname of any file within the mounted filesystem
struct statfs fsd;
=> QOS_INODE_USAGE = PROPAGATE_ALL_ONES(fsd.f_files) - PROPAGATE_ALL_ONES(fsd.f_ffree)
=> inode_max_size = PROPAGATE_ALL_ONES(fsd.f_files)

HPUX and Linux:
Using "int statvfs(const char *path, struct statvfs *fsd);" function

PATH: is the pathname of any file within the mounted filesystem
struct statvfs fsd;
=> QOS_INODE_USAGE = PROPAGATE_ALL_ONES(fsd.f_files) - PROPAGATE_ALL_ONES(fsd.f_ffree)
=> inode_max_size = PROPAGATE_ALL_ONES(fsd.f_files)


Solaris:
Using "int statvfs64(const char *path, struct statvfs64 *fsd);" or "int statvfs(const char *path, struct statvfs *fsd);" function
Note: statvfs64 used when _LARGEFILE64_SOURCE platforms

PATH: is the pathname of any file within the mounted filesystem
struct statvfs64 fsd; or struct statvfs fsd;
=> QOS_INODE_USAGE = PROPAGATE_ALL_ONES(fsd.f_files) - PROPAGATE_ALL_ONES(fsd.f_ffree)
=> inode_max_size = PROPAGATE_ALL_ONES(fsd.f_files)

Tru64 Unix: =======> (Getting details from Command Line)
Using ./tru64_df_v5 or ./tru64_df_v2
PATH: is the pathname of any file within the mounted filesystem
=> QOS_INODE_USAGE = (fsd.f_files) - (fsd.f_ffree) (Copied last two values from command output fsd.f_files and fsd.f_ffree)
=> inode_max_size = (fsd.f_files)