On the fourth day of training, I started to feel interested to learn more about TSM.
Unit 9: Backup-archive client functions
Lesson 1: Backup concepts
Storage area networks and local area networks
SAN – LAN Free
VE does not support LAN Free
Backup and restore review
restore directory structure first, then restore the files
Progressive incremental backup
standard method of backup used by TSM
Lesson 2: Backup types
Incremental and selective backups
Incremental Backup:
– Incremental (complete)
– Incremental by Date
– Incremental (without Journal)
Always Backups (selective or full)
Other backup types
Journal-based backup
Image backup
Logical volume backup
NAS file system backup (NDMP)
Journal-base backup
Windows client only/ Journal engine service running
Backup sets
A backup set is a group of active versions of files, copied onto portable media
Backup set can be restored on the client locally without TSM server available
Lesson 3: Performing client backups
Using Backup-Archive client
Lesson 4: Restoring files
Restore overview
Restore process priority 1 (highest), migration process priority 5 (lowest)
By default, files are restored to the original place
point-in-time restore
equal to or before the point in time
Restartable restore
Lesson 5: Backup and restore with the command line
Using the command line for backups
dsmc action keyword –option=value filespec
dsmc i /home/project/2009/lab24*
dsmc sel d:\project\*
dsmc sel –subdir=yes d:\project\*
query filespace
Restoring backed up files using the dsmc restore command
dsmc restore c:\projects\lab.ppt
options:
– pick
– inactive
– latest
– ifnewer
– pitt
– pitd
Using the PRESERVEPATH restore option
Complete/ Partial (default) / None
Lesson 6: Archive and retrieve
Archive descriptions
default description Archive Date: mm/dd/yyyy
Lesson 7: Archive and retrieve command line
Using the archive/ retrieve command
dsmc archive c:\lab1\project\*.txt
dsmc retrieve c:\lab1\project\*.txt
Lesson 8: Command options for backup, archive, restore, and retrieve
– SUBDIR
– FROMTIME
– TODATE
– FROMDATE
– TOTIME
– FROMNODE
– FROMOWNER
– PICK
– VIRTUALNODENAME
Archive and retrieve directories
– DIRONLY
– FILESONLY
Lesson 9: Additional backup types
Image backup for Windows
online or office, depending on Include.Image statement (Snapshot for online image backup/ Static for offline image backup)
Windows snapshot image backup
snapshotproviderfs option in the dsm.opt
Setting up Windows open file support
VSS / LVSA (logical volume snapshot agent)
Windows incremental image (date only) backup
Virtual backup and recovery
VMware: Full and Incremental
Hyper-V: Full
Unit 10: Protecting the database and storage pools
Lesson 1: TSM database and storage pool protection requirements
– Backup TSM database
– Have at least one copy of all storage pool date
– Considering using disaster recovery plan to facilitate recovery in case of disaster
Disaster Recovery Manager (DRM) functions
– creates disaster recovery plan file
– manage off-site media
– maintains client information
– centralizes the disaster recovery process
– provides scripts to automate recovery
DR plan file
Command: prepare
Generate the DR plan file everyday and keep it offsite
Lesson 2: Backing up the database
Performing a full database backup
backup db devclass=your_tape_devc type=full
Performing a database snapshot backup
Snapshot backup (out-of-band) can be taken off-site. Full plus incremental backup series stays on-site for availability
Setting up for database backups
set dbrecovery dbback (if you do not use the command before the first database backup runs, the backup will fail)
Using the BACKUP DB command
backup db
Database backup-related commands
query db format=detail
query volhistory type=dbb
delete volhistory todate=today-7 type=dbbackup
Lesson 3: TSM database recovery
To restore TSM database, the database backup and volume history file (volhist.out) must be available
devconfig.out, archive log and dsmserv.opt are also helpful
Restoring the database
dsmserv format (if volumes are lost)
dsmserv restore db
Using point-in-time recovery
Database RESTORE command examples
DSMSERV RESTORE DB PREVIEW=No|Yes
Best practices
Lesson 4: Using active-data pools
Optimizing access to active version for fast restore
Defining and updating active-data pools
define stgpool pool_name device_class_name pooltype=acitvedatapool maxscrach=####
update stgpool pool_name device_class_name activedatapool=active-date_pool_name
Lesson 5: Protecting the storage pools
Storage pool backup and recovery
restore volume
restore stgpool
Backing up storage pools
Primary backup pool –> Copy pool (sequential only)
Defining a copy storage pool
define stgpool pool_name device_class_name pooltype=copy …
Backing up the storage pool hierarchy
backup stgpool primary_disk onsite
backup stgpool primary_tape onsite
Using simultaneous write
up to three copy pools and active-data pools
Handling off-site volumes
update volume volname access=offsite location=”vault”
Updating volumes for off-site
Setting the reclamation threshold of off-site volumes
Reclamation is a server process of consolidating files from several volumes onto one volume
query volume
update volume
Updating off-site volumes
query volume * access=offsite status=empty stg=OFF-SITE
update volume * access=readwrite location=”Back Home” wherestgpool=off-site whereaccess=offsite wherestatus=empty
Restoring storage pool files
restore from copy pools to damaged files/ damaged volumes/ damaged volumes within a storage pool
Restoring damaged primary storage pool files
detect the damaged files
restore stgpool <primary_pool> preview=yes
Maintaining the integrity of files
– Run audit volume with FIX=ACCESS if you find and repair the damage
– Change ACCESS=DESTROYED if the volume can not be repaired
Recovering from a media loss
‘RESTORE VOLUME poolname’ restore the volume with an access mode of DESTROYED, and damaged files on other volume
Using the RESTORE VOLUME command
RESTORE Volume volname COPYstgpool=copypool NEWstgpool=newprimarypool MAXPRocess=numprocesses (1) Preview=No|Yes Wait=No|Yes
THE RESTORE STORAGE POOL command
restore stgpool …
Backup and recovery tips
– Backup each primary storage pool hierarchy to the same copy pool
– Consider using at least one copy pool for on-site recovery and one for disaster recovery
– Using administrative scheduling to automate storage pool backups
– Save volume history (VOLHIST.out), device configuration file (DEVCNFG.out), and output of system query command. Send off-site along with the DSMSERV.OPT option files.
– Use AC to create a script to: backup the primary storage pools and database, create a recovery plan file if using the DRM
Daily tasks to protect your data
– backup primary storage pool to copy storage pool
– backup the database
– save volume history file, device configuration file and output of query system command
– move the above files to off-site
– if use DRM, run prepare command to generate disaster recovery plan and keep it off-site (Extended Edition)
The REUSEDLAY parameter
You should delay the reuse of any reclaimed volumes in copy storage pools for as long as you keep the oldest database backup
Daily administration cycle
Lesson 6: TSM maintenance plans
Use AC to create separate script for each TSM server
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