Transaction processing options

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Transaction processing options control how transactions are processed between the IBM® Storage Protect client and server.

Table 1 lists the transaction processing options that are available.

Table 1. Transaction processing options
Option Description
collocatebyfilespec Specifies that you want the backup-archive client to use only one server session to send objects generated from one file specification. Setting the collocatebyfilespec option to yes eliminates interspersing of files from different file specifications, by limiting the client to one server session per file specification. Therefore, if you store the data to tape, files for each file specification are stored together on one tape (unless another tape is required for more capacity).
commrestartduration Specifies the maximum number of minutes you want the client to try to reconnect to the IBM Storage Protect server after a communication error occurs.
commrestartinterval Specifies the number of seconds you want the client to wait between attempts to reconnect to the IBM Storage Protect server after a communication error occurs.
diskbuffsize Specifies the maximum disk I/O buffer size (in kilobytes) that the client can use when reading files.
Mac OS X operating systemsWindows operating systemsOracle Solaris operating systemsLinux operating systemsAIX operating systemslargecommbuffers Mac OS X operating systemsWindows operating systemsOracle Solaris operating systemsLinux operating systemsAIX operating systemsThis option has been replaced by the diskbuffsize option. At this time, largecommbuffers is still accepted by the backup-archive client in order to ease the transition to the new option. However, the value specified by largecommbuffers is ignored in favor of the diskbuffsize setting.
Important: Discontinue the use of largecommbuffers because future releases of the client might not accept this option.
Mac OS X operating systemsOracle Solaris operating systemsLinux operating systemsAIX operating systemsnfstimeout Mac OS X operating systemsOracle Solaris operating systemsLinux operating systemsAIX operating systemsSpecifies the number of seconds the server waits for a status system call on an NFS file system before it times out.
Windows operating systemsresourceutilization Windows operating systemsUse the resourceutilization option in your client options file dsm.opt to regulate the level of resources the IBM Storage Protect server and client can use during processing.
Mac OS X operating systemsOracle Solaris operating systemsLinux operating systemsAIX operating systemsresourceutilization Mac OS X operating systemsOracle Solaris operating systemsLinux operating systemsAIX operating systemsUse the resourceutilization option in your dsm.sys file to regulate the level of resources the IBM Storage Protect server and client can use during processing.
txnbytelimit Specifies the number of kilobytes the client program buffers before it sends a transaction to the server.
Windows operating systemsusedirectory Windows operating systemsProvides a convenient way to simplify client communication configuration by overriding commmethod parameters set in the client options file and instead querying the Active Directory for the communication method and server with which to connect.