Diskbuffsize
The diskbuffsize option specifies the maximum disk I/O buffer size (in kilobytes) that the client can use when reading files. The diskbuffsize option replaces the largecommbuffers option.
Optimal backup, archive, or HSM
migration client performance can usually be achieved if the value for this option is equal to or
smaller than the amount of file read ahead provided by the client file system. A larger buffer
requires more memory and it might not improve performance.
Important: Use the default setting, unless otherwise directed by IBM® support personnel.
Supported Clients
This option is valid for all clients.
Options File
Place this option in the client options file (dsm.opt).
Place this option in the client
system-options file (dsm.sys) within a server stanza.
Syntax
Parameters
- size
- Specifies the maximum disk I/O buffer size (in kilobytes) that the client uses when reading
files. The range of values is 16 through 1023; the default is 256. If enablelanfree
yes is set, the default setting for diskbuffsize is 32.
Examples
- Options file:
- diskbuffsize 64
- Command line:
- Does not apply.