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15.1: Memory management for progressive ... > Using the DISKCACHEMETHOD option - Pg. 199

15.1.4 Using the DISKCACHEMETHOD option Here we provide a small implementation example of the MEMORYEFFICIENT=DISKCACHEMETHOD option. To do so, we created a client node with a large number of files (over eight million). We define a DOMAIN statement to include only that volume, in this case the E: drive. Note that this is a simple test only, designed to show the functionality. It is not designed to demonstrate real performance numbers. 1. The initial backup of the directory and its volume is not a problem, as the server does not yet have any information about the volume. Therefore, every object found needs to be sent to the server, as shown in Example 15-2. Example 15-2 First backup, creating filespace on the server C:\Tivoli\TSM\baclient>dsmc incr -optfile=node1.opt IBM Tivoli Storage Manager Command Line Backup/Archive Client Interface Client Version 5, Release 5, Level 0.0 Client date/time: 12/04/2007 07:36:59 (c) Copyright by IBM Corporation and other(s) 1990, 2007. All Rights Reserved. Node Name: NODE1 Session established with server HAGGIS: Windows Server Version 5, Release 5, Level 0.0 Server date/time: 12/04/2007 07:37:00 Last access: 12/03/2007 20:44:35 Incremental backup of volume '\\lochnese\e$' Successful incremental backup of '\\lochnese\e$' Total number of objects inspected: Total number of objects backed up: Total number of objects updated: Total number of objects rebound: Total number of objects deleted: Total number of objects expired: Total number of objects failed: Total number of subfile objects: Total number of bytes transferred: Data transfer time: Network data transfer rate: Aggregate data transfer rate: Objects compressed by: Subfile objects reduced by: Elapsed processing time: 8,224,440 8,224,440 0 0 0 0 0 0 21.39 GB 228.73 sec 98,071.80 KB/sec 870.28 KB/sec 0% 0% 07:09:35 2. We run an incremental backup with the default setting of MEMORYEFFICIENT=NO. Example 15-3 shows how we fail with the unpopular ANS1030E message. Example 15-3 ANS1030E on backup of large file system C:\Tivoli\TSM\baclient>dsmc i -optfile=node1.opt IBM Tivoli Storage Manager Command Line Backup/Archive Client Interface Chapter 15. Backup-archive client memory management 199