By Jackie Zhu Wei-Dong
Read Online or Download Content Manager Backup Recovery and High Availability: Strategies, Options, and Procedures (IBM Redbooks) PDF
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Extra resources for Content Manager Backup Recovery and High Availability: Strategies, Options, and Procedures (IBM Redbooks)
Of active log files for 1 active UOW(NUM_LOG_SPAN) = = = = = Group commit count (MINCOMMIT) Percent log file reclaimed before soft chckpt (SOFTMAX) Log retain for recovery enabled (LOGRETAIN) User exit for logging enabled (USEREXIT) = = = = 1000 10 20 C:\DB2\NODE0000\ = = = = NO = 0 = 0 1 100 OFF OFF Auto restart enabled (AUTORESTART) = ON Index re-creation time (INDEXREC) = SYSTEM (ACCESS) Default number of loadrec sessions (DFT_LOADREC_SES) = 1 Number of database backups to retain (NUM_DB_BACKUPS) = 12 Recovery history retention (days) (REC_HIS_RETENTN) = 366 TSM TSM TSM TSM 18 management class node name owner password Content Manager Backup/Recovery and High Availability (TSM_MGMTCLASS) (TSM_NODENAME) (TSM_OWNER) (TSM_PASSWORD) = = = = Archival logging Opposite to circular logging, archival logging does not overwrite existing log files.
To check if circular logging is used, verify that LOGRETAIN and USEREXIT are set to OFF. A sample output is shown in Example 2-1. The important information for logging and backup and recovery in general are highlighted in bold. Example 2-1 A sample database configuration Database Configuration for Database ICMNLSDB Database configuration release level Database release level = 0x0a00 = 0x0a00 Database Database Database Database = = = = territory code page code set country/region code Dynamic SQL Query management (DYN_QUERY_MGMT) = DISABLE Discovery support for this database Default query optimization class 16 US 1252 IBM-1252 1 Content Manager Backup/Recovery and High Availability (DISCOVER_DB) = ENABLE (DFT_QUERYOPT) = 2 Degree of parallelism Continue upon arithmetic exceptions Default refresh age Number of frequent values retained Number of quantiles retained (DFT_DEGREE) (DFT_SQLMATHWARN) (DFT_REFRESH_AGE) (NUM_FREQVALUES) (NUM_QUANTILES) = = = = = 1 NO 0 10 20 Backup pending = NO Database is consistent Rollforward pending Restore pending = NO = NO = NO Multi-page file allocation enabled = NO Log retain for recovery status User exit for logging status = NO = NO Data Data Data Data Data Data = = = = = = Links Links Links Links Links Links Token Expiry Interval (sec) (DL_EXPINT) Write Token Init Expiry Intvl(DL_WT_IEXPINT) Number of Copies (DL_NUM_COPIES) Time after Drop (days) (DL_TIME_DROP) Token in Uppercase (DL_UPPER) Token Algorithm (DL_TOKEN) 60 60 1 1 NO MAC0 Database heap (4KB) (DBHEAP) = 2400 Size of database shared memory (4KB) (DATABASE_MEMORY) = AUTOMATIC Catalog cache size (4KB) (CATALOGCACHE_SZ) = (MAXAPPLS*4) Log buffer size (4KB) (LOGBUFSZ) = 32 Utilities heap size (4KB) (UTIL_HEAP_SZ) = 5000 Buffer pool size (pages) (BUFFPAGE) = 250 Extended storage segments size (4KB) (ESTORE_SEG_SZ) = 16000 Number of extended storage segments (NUM_ESTORE_SEGS) = 0 Max storage for lock list (4KB) (LOCKLIST) = 1000 Max size of appl.
Backup and recovery strategies and options 39 Backing up to a file system Because the storage area is a standard file system, you can back it up using standard backup tools. This can be as easy as copying the files using the copy command of the operating system or using the built-in backup utilities of your operating system. Backing up to Tivoli Storage Manager Using Tivoli Storage Manager to manage the storage area backups, as well as a secondary storage device, is a good option and a very common practice.