Presentation recovery manager (rman) configuration and performance tuning best practices

<Insert Picture Here>
Recovery Manager (RMAN) Configuration and Performance Tuning
Best Practices
Timothy Chien
Principal Product Manager
Oracle America
Greg Green
Senior Database Administrator
Starbucks Coffee Company

2
Oracle OpenWorld
Latin America 2010
December 7–9, 2010

3
Oracle OpenWorld
Beijing 2010
December 13–16, 2010

4
Oracle Products Available Online
Oracle Store
Buy Oracle license and support
online today at
oracle.com/store

5
Agenda
• Recovery Manager Overview
• Configuration Best Practices
– Backup Strategies Comparison
– Fast Recovery Area (FRA)
• Performance Tuning Methodology
– Backup Data Flow
– Tuning Principles
– Diagnosing Performance Bottlenecks
• Starbucks Case Study
• Summary/Q&A

6
Oracle Recovery Manager (RMAN)
Oracle-integrated Backup & Recovery Engine
Oracle Enterprise
Manager
RMAN
Database
Fast Recovery
Area
Tape Drive
Oracle Secure
Backup*
•Intrinsic knowledge of database
file formats and recovery
procedures
• Block validation
• Online block-level recovery
• Tablespace/data file recovery
• Online, multi-streamed backup
• Unused block compression
• Native encryption
•Integrated disk, tape & cloud
backup leveraging the Fast
Recovery Area (FRA) and
Oracle Secure BackupCloud
*RMAN also supports leading 3rd party media managers

7
Most Critical Question To Ask First..
• What are my recovery requirements?
– Assess tolerance for data loss - Recovery Point Objective (RPO)
• How frequently should backups be taken?
• Is point-in-time recovery required?
– Assess tolerance for downtime - Recovery Time Objective (RTO)
• Downtime: Problem identification + recovery planning +
systems recovery
• Tiered RTO per level of granularity, e.g. database,
tablespace, table, row
– Determine backup retention policy
• Onsite, offsite, long-term
• Then..how does my RMAN backup strategy fulfill those
requirements?

8
Option 1: Full & Incremental Tape Backups
• Well-suited for:
– Databases that can tolerate hours/days RTO
– Environments where disk is premium
– Low-medium change frequency between backups, e.g. < 20%
• Backup strategy:
– Weekly level 0 and daily ‘differential’ incremental backup sets to
tape, with optional backup compression
– Enable block change tracking - only changed blocks are read
and written during incremental backup
– Archived logs are backed up and retained on-disk, as needed
Level 0 (full) Level 1 (incremental)
….
Archived Logs Archived Logs

9
Script Example
• Configure SBT (i.e. tape) channels:
– CONFIGURE CHANNEL DEVICE TYPE SBT PARMS
'<channel parameters>';
• Weekly full backup:
– BACKUP AS BACKUPSET INCREMENTAL LEVEL 0
DATABASE PLUS ARCHIVELOG;
• Daily incremental backup:
– BACKUP AS BACKUPSET INCREMENTAL LEVEL 1
DATABASE PLUS ARCHIVELOG;

10
Option 2: Incrementally Updated Disk Backups
– Databases that can tolerate no more than a few hours RTO
– Environments where disk can be allocated for 1X size of
database or most critical tablespaces
– Initial image copy to FRA, followed by daily incremental backups
– Roll forward copy with incremental, to produce new on-disk copy
– Full backup archived to tape, as needed
– Archived logs are backed up and retained on-disk, as needed
– Fast recovery from disk or SWITCH to use image copies
Level 0 (full) +
archive to tape
Level 1
….
Roll forward image copy
+ Level 1
Archived Logs Archived Logs Archived Logs

11
Script Example
• Configure SBT channels, if needed:
– [CONFIGURE CHANNEL DEVICE TYPE SBT PARMS
'<channel parameters>';]
• Daily roll forward copy and incremental backup:
– RECOVER COPY OF DATABASE WITH TAG 'OSS';
– BACKUP DEVICE TYPE DISK INCREMENTAL LEVEL 1
FOR RECOVER OF COPY WITH TAG 'OSS' DATABASE;
– [BACKUP DEVICE TYPE SBT ARCHIVELOG ALL;]
• What happens?
– First run: Image copy
– Second run: Incremental backup
– Third run+: Roll forward copy & create new incremental backup
• Backup FRA to tape, if needed:
– [BACKUP RECOVERY AREA;]

12
Fast Recovery with
RMAN SWITCH Demo

13
Option 3: Offload Backups to Physical Standby
Database in Data Guard Environment
– Databases that require no more than several minutes of recovery
time, in event of any failure
– Environments that can preferably allocate symmetric hardware
and storage for physical standby database
– Environments whose tape infrastructure can be shared between
primary and standby database sites
– Full and incremental backups offloaded to physical standby
database
– Fast incremental backup on standby with Active Data Guard
– Backups can be restored to primary or standby database
• Backups can be taken at each database for optimal local
protection

14
Backup Strategies Comparison
Strategy Backup Factors Recovery Factors
Option 1: Full &
Incremental Tape
Backups
•Fast incrementals
•Save space with backup
compression
•Cost-effective tape
storage
•Full backup restored first,
then incrementals &
archived logs
•Tape backups read
sequentially
Option 2: Incrementally
Updated Disk Backups
•Incremental + roll forward
to create up-to-date copy
•Requires 1X production
storage for copy
•Optional tape storage
•Backups read via random
access
•Restore-free recovery with
SWITCH command
Option 3: Offload
Backups to Physical
Standby Database
•Above benefits +
primary database free to
handle more workloads
•Requires 1X production
hardware and storage for
standby database
•Fast failover to standby
database in event of any
failure
•Backups are last resort, in
event of double site failure

15
Fast Recovery Area (FRA) Sizing
• If you want to keep:
– Control file backups and archived logs
• Estimate total size of all archived logs generated between
successive backups on the busiest days x 2 (in case of
unexpected redo spikes)
– Flashback logs
• Add in {Redo rate x Flashback retention target time x 2}
– Incremental backups
• Add in their estimated sizes
– On-disk image copy
• Add in size of the database minus size of temporary files
– Further details:
• http://download.oracle.com/docs/cd/E11882_01/backup.112/e106
42/rcmconfb.htm#i1019211

16
FRA File Retention and Deletion
• When FRA space needs exceed quota, automatic file deletion occurs
in the following order:
1. Flashback logs
• Oldest Flashback time can be affected (with exception of guaranteed restore
points)
2. RMAN backup pieces/copies and archived redo logs that are:
• Not needed to maintain RMAN retention policy, or
• Have been backed up to tape (via DEVICE TYPE SBT) or secondary disk location
(via BACKUP RECOVERY AREA TO DESTINATION ‘..’)
• If archived log deletion policy is configured as:
– APPLIED ON [ALL] STANDBY
• Archived log must have been applied to mandatory or all standby databases
– SHIPPED TO [ALL] STANDBY
• Archived log must have been transferred to mandatory or all standby databases
– BACKED UP <N> TIMES TO DEVICE TYPE [DISK | SBT]
• Archived log must have been backed up at least <N> times
– If [APPLIED or SHIPPED] and BACKED UP policies are configured, both conditions
must be satisfied for an archived log to be considered for deletion.

17
Performance Tuning
Methodology

18
Performance Tuning Overview
• RMAN Backup Data Flow
• Performance Tuning Principles
• Diagnosing Performance Bottlenecks

19
RMAN Backup Data Flow
A. Prepare backup tasks & read blocks into input buffers
B. Validate blocks & copy them to output buffers
– Compress and/or encrypt data if requested
C. Write output buffers to storage media (DISK or SBT)
– Media manager handles writing of output buffers to SBT
Write to storage media
Output I/O Buffer
Restore is inverse
of data flow..

20
Tuning Principles
1. Determine the maximum input disk, output media, and network
throughput
– E.g. Oracle ORION – downloadable from OTN, DD command
– Evaluate network throughput at all touch points, e.g. database
server->media management environment->tape system
2. Configure disk subsystem for optimal performance
– Use ASM
• Configure external redundancy & leverage hardware RAID
• If disks will be shared for DATA and FRA disk groups:
– Provision the outer sectors to DATA for higher
performance
– Provision inner sectors to FRA, which has lower
performance, but suitable for sequential write activity
(e.g. backups)
• Otherwise, separate DATA and FRA disks
– If not using ASM, stripe data files across all disks with 1 MB
stripe size.

21
Tuning Principles
3. Tune RMAN to fully utilize disk subsystem and tape
– Use asynchronous I/O
• For disk backup:
– If the system does not support native asynchronous
I/O, set DBWR_IO_SLAVES.
• Four slave processes allocated per session
• For tape backup:
– Set BACKUP_TAPE_IO_SLAVES, unless media
manager states otherwise.
• One slave process allocated per channel process

22
Tuning Principles
3. Tune RMAN to fully utilize disk subsystem and tape
– For backups to disk, allocate as many channels as can be handled by
the system.
• For image copies, one channel processes one data file at a time.
– For backups to tape, allocate one channel per tape drive.
• “But allocating # of channels greater than # of tape drives
increases backup performance..so that’s a good thing, right?”
– No..restore time can be degraded due to tape-side
multiplexing
• If BACKUP VALIDATE duration (i.e. read phase) where:
– Time {channels = tape drives} ~= Time {channels > tape
drives}
• Bottleneck is most likely in media manager.
• Discussed later in ‘Diagnosing Performance Bottlenecks’
– Time {channels = tape drives} >> Time {channels > tape
drives}
• Tune read phase (discussed next)

23
Read Phase - RMAN Multiplexing
• Multiplexing level: maximum number of files read by
one channel, at any time, during backup
– Min(MAXOPENFILES, FILESPERSET)
– MAXOPENFILES default = 8
– FILESPERSET default = 64
• Larger vs smaller backup set trade-offs
– Restore performance
• All data files vs. single data file
– Backup restartability
• MAXOPENFILES determines number and size of input
buffers
– Number and size of input buffers in
V$BACKUP_ASYNC_IO/V$BACKUP_SYNC_IO
– All buffers allocated from PGA, unless disk or tape
I/O slaves are enabled (SGA by default or
LARGE_POOL, if set)

24
Read Phase - RMAN Input Buffers
• MAXOPENFILES ≤ 4
– Each buffer = 1MB, total buffer size for channel is up to 16MB
• MAXOPENFILES=1 => 16 buffers/file, 1 MB/buffer = 16 MB/file
– Optimal for ASM or striped system
• 4 < MAXOPENFILES ≤ 8
– Each buffer = 512KB, total buffer size for channel is up to 16MB.
Number of buffers per file will depend on number of files.
• MAXOPENFILES=8 => 4 buffers/file, 512 KB/buffer = 2 MB/file
– Optimal for non-striped system
– Reduce the number of input buffers/file to more effectively
spread out I/O usage (since each file resides on one disk)
• MAXOPENFILES > 8
– Each buffer = 128KB, 4 buffers per file, so each file will have 512KB
buffer

25
Tuning Principles
4. If BACKUP VALIDATE still does not utilize available disk I/O & there is
available CPU and memory:
– Increase RMAN buffer memory usage
• With Oracle Database 11g Release 11.1.0.7 or lower versions -
• Set _BACKUP_KSFQ_BUFCNT (default 16) = # of input disks
– Number of input buffers per file allocated
– Achieve balance between memory usage and I/O
• E.g. Setting to 500 for 500 input disks may exceed tolerable memory
consumption
• Set _BACKUP_KSFQ_BUFSZ (default 1048576) = stripe size (in bytes)
• With Oracle Database 11g Release 2 -
• Set _BACKUP_FILE_BUFCNT,_BACKUP_FILE_BUFSZ
• Restore performance can increase with setting these parameters, as
output buffers used during restore will also increase correspondingly
• Refer to Support Note 1072545.1 for more details
• Note: With Oracle Database 11g Release 2 & ASM, all buffers are
automatically sized for optimal performance

26
Backup Data Flow
B. Validate blocks & copy them to output buffers
– Compress and/or encrypt data if requested
C. Write output buffers to storage media (DISK or SBT)
– Media manager handles writing of output buffers to SBT
Write to storage media
Output I/O Buffer

27
Tuning Principles
5. RMAN backup compression & encryption guidelines
– Both operations depend heavily on CPU resources
– Increase CPU resources or use LOW/MEDIUM setting
– Verify that uncompressed backup performance scales properly,
as channels are added
– Note - if data is encrypted with:
• TDE column encryption
– For encrypted backup, data is double encrypted (i.e.
encrypted columns treated as if they were not encrypted)
• TDE tablespace encryption
– For compressed & encrypted backup, encrypted
tablespaces are decrypted, compressed, then re-encrypted
– If only encrypted backup, encrypted blocks pass through
backup unchanged

28
Tuning Principles
6. Tune RMAN output buffer size
– Output buffers => blocks written to DISK as copies or backup pieces
or to SBT as backup pieces
– Four buffers allocated per channel
– Default buffer sizes
• DISK: 1 MB
• SBT: 256 KB
– Adjust with BLKSIZE channel parameter
– Set BLKSIZE >= media management client buffer size
– No changes needed for Oracle Secure Backup
• Output buffer count & size for disk backup can be manually adjusted
– Details in Support Note 1072545.1
– Note: With Oracle Database 11g Release 2 & ASM, all
buffers are automatically sized for optimal performance

29
Performance Tuning Overview
• RMAN Backup Data Flow
• Performance Tuning Principles
• Diagnosing Performance Bottlenecks

30
Diagnosing Performance Bottlenecks – Pt. 1
• Query EFFECTIVE_BYTES_PER_SECOND column (EBPS) for
‘AGGREGATE’row in V$BACKUP_ASYNC_IO or V$BACKUP_SYNC_IO
– If EBPS < storage media throughput, run BACKUP VALIDATE
• Case 1: BACKUP VALIDATE time ~= actual backup time, then
read phase is the likely bottleneck.
– Refer to RMAN multiplexing and buffer usage guidelines
– Investigate ‘slow’ performing files
• Find data file with highest (LONG_WAITS/IO_COUNT)ratio
• If ASM, add disk spindles and/or re-balance disks
• Move file to new disk or multiplex with another ‘slow’ file

31
Diagnosing Performance Bottlenecks – Pt. 2
• Case 2: BACKUP VALIDATE time << actual backup time, then
buffer copy or write to storage media phase is the likely
bottleneck.
– Refer to backup compression and encryption guidelines
– If tape backup, check media management (MML) settings:
• TCP/IP buffer size
• Media management client/server buffer size
• Client/socket timeout
• Media server hardware, connectivity to tape
• Enable tape compression (but not RMAN compression)

32
Restore & Recovery Performance Best Practices
• Minimize archive log application by using incremental backups
• Use block media recovery for isolated block corruptions
• Keep adequate number of archived logs on disk
• Increase RMAN buffer memory usage
• Tune database for I/O, DBWR performance, CPU utilization
• Refer to MAA Media Recovery Best Practices paper
– Active Data Guard 11g Best Practices (includes best practices for
Redo Apply)

34
Greg Green
September 22, 2010
Starbucks Enterprise Data Warehouse (EDW)
Backup and Recovery Tuning

35
Greg Green
September 22, 2010
Starbucks Enterprise Data Warehouse (EDW)
Backup and Recovery Tuning

36
Starbucks Enterprise Data Warehouse
(EDW) Backup and Recovery Tuning
• Starbucks Background and EDW Architecture
• EDW Backup and Recovery Strategy
• Issues/Challenges with Tape Backups
• Course of Action to Resolve Tape Backup
Performance Issue

37
Global Brand Grows from a Single Store

38
The Starbucks of Today
Licensed Stores:
Grocery stores,
Borders Book stores,
airports, convention centers
Foodservice:
“We Proudly Brew,”
Serving coffee through
hotels, colleges,
hospitals, airlines
Company-operated
stores in the U.S.
and International

39
EDW - Who it Supports
• Production EDW supports Starbucks internal
business users
• 10 TB VLDB warehouse, growing 1-2 TB per year
• Provides reports to the store level – sales, staffing, etc.
• Thousands of stores directly access the EDW
• Web-based dashboard reports via company intranet
• Monday Morning Mayhem
• Front-end reporting with Microstrategy
• Leveraging Ascential DataStage ETL Tool
• Toad, SQL Developer, and other ad-hoc tools used by
developers and QA
• And Much, Much, More…..

40
Production Hardware
• Servers –
4 CPU HP ia64
1.5 GHz CPU
16 GB RAM
• Network –
Infiniband Private
Interconnect
• Public Network –
Gigabit Ethernet
• Storage –
SAN, ASM
• 12 TB RAID 1+0
(DATA DG),
146 GB Drives
• 14 TB RAID 5
(FRA DG),
300 GB Drives
• Oracle Database
11.1.0.7 EE
• Media Manager –
NetBackup 6.5.5
• RMAN Backup &
Recovery
5 Node RAC Database

41
Performance Issue

42
Backup Strategy
• RPO – Anytime within the last 24 hours, Backup window of 24 hours
• RMAN Incrementally Updated Backup Strategy
• Disk - Flash Recovery Area (FRA)
• Daily Incremental update of image copy with ‘SYSDATE – 1’
• Daily Level 1 Differential Incremental Backups
• Daily Script:
{ RECOVER COPY OF DATABASE WITH TAG
'WEEKLY_FULL_BKUP'
UNTIL TIME 'SYSDATE - 1';
BACKUP INCREMENTAL LEVEL 1 FOR RECOVER OF
COPY WITH TAG WEEKLY_FULL_BKUP DATABASE;
BACKUP AS BACKUPSET ARCHIVELOG ALL NOT
BACKED UP DELETE ALL INPUT;
DELETE NOPROMPT OBSOLETE RECOVERY WINDOW OF
1 DAYS DEVICE TYPE DISK; }
• Tape
• Weekly: BACKUP RECOVERY AREA
• Each day, for rest of the week: BACKUP BACKUPSET ALL

43
Backup Performance to FRA
• Daily Incremental Update + Incremental Backup
• 1 hr 45 minutes -> 2 hrs 30 minutes depending upon workload
• 60-75 minutes for RECOVER COPY OF DATABASE ..
• 30-45 minutes for incremental backup set creation + time to
purge old backup pieces
• The backup set is typically 250-350 GB but can vary depending
on the workload
• 4 RMAN channels to disk running on single RAC node

44
Backup Performance to Tape
• Daily Backup of Backup Sets to Tape
• Using 2 channels on 1 node takes 60-90 minutes (some
concern here with speed)
• Weekly Backup of Recovery Area to Tape
• With 4 channels (2 channels per node) backing up 10.5 TB in
FRA, backup duration can be highly variable.
• Backup will sometimes run in 15-16 hours and other times
30+ hours!
• Why the wide variance?
• But first, what is expected backup rate?

45
What is Expected Backup Rate?
• LTO-2 tape drive can backup at roughly 70 MB/sec compressed
(or better)
• 4 drives x 70 MB = 280 MB/sec (1 TB/hr)
• Is the tape rate supported by FRA disk?
• RMAN – BACKUP VALIDATE DATAFILECOPY ALL
• Observed rate (read phase) > 1 TB/hr
• What is the effect of GigE connection to media server?
• Maximum theoretical speed is 128 MB/sec
• With overhead, ~115 MB/sec per node
• Maximum rate from 2 nodes is 230 MB/sec (828 GB/hr)
• Observed rate is more like 180 MB/sec (650 GB/hr)
• Conclusion: GigE throttles overall backup rate
• FRA backup time = 10.5 TB / 650 GB/hr = ~16 hrs
• Something else going on with backup time variance..

46
Why So Much Variance in FRA Backup Time?
• Three Problem Areas Identified
• Link Aggregation on the Media Server
• Spent a lot of time making sure this was working
• Network Load Balancing from Network Switch
• On occasion, 3 out of 4 RMAN channels jumped on one
port of Network Interface Card (NIC)
• Processor Architecture on Media Server
• T2000 Chip – 1 chip x 4 cores x 4 threads
• Requires setting interrupts to load balance across the 4
cores
• One core completely pegged during tests

47
Performance Issue

48
Tuning Objective
• Decrease Variance in Backup Time
• Increase Backup Throughput for Future Growth
• EDW capacity increasing from 12->17 TB over next month
• Backup window still 24 hours
• Current 720 MB/s throughput will overrun window at 17 TB
• Desired throughput is ~ 1 TB/hr to accommodate growth &
meet backup window
• Simplify Backup Hardware Architecture

49
Proposed Solution 1 -
Eliminate Separate Media Server &
Install Media Server on 2 RAC Nodes
• Benefits
• Reduces
Backup
Complexity
• Eliminates
1 GigE Network
Bottleneck
• Eliminates
Network Load
Balancing
Issues
• Easier to
Monitor

50
Proposed Solution 2 –
Use NetBackup SAN Clients
• Benefits
• Eliminates
1 GigE
Network
Bottleneck
• Eliminates
Network Load
Balancing
Issues

51
What is New Theoretical Bottleneck?
• LTO-3 tape drive backs up at ~140 MB/s compressed (or better)
• 2 drives (1 drive / node) x 140 MB/sec = 280 MB/s (1 TB/hr)
• Is tape speed supported by FRA disk?
• RMAN - BACKUP VALIDATE DATAFILECOPY ALL
• Observed rate > 1 TB/hr (with 4 RMAN channels)
• Is tape speed limited by connection over fiber?
• Each Node has 4 x 2 Gb Fiber Connections with EMC PowerPath
Multipathing software
• Storage Engineer – “1.37 GB/Sec max rate for cluster.”
• Two tape drives - 280 MB/s out of 1.37 GB/s
• 20% of available I/O capacity utilization
• FRA backup time: 10.5 TB / 1 TB/hr = 10.5 hrs
• 35% performance improvement vs. today (16 hrs)

52
Finally – Some Real RMAN Tuning
• Tests were conducted with running a BACKUP VALIDATE
DATAFILECOPY ALL command with 2 channels
• Test 1 – 2 channels on 1 node
• Test 2 - 2 channels on 2 nodes (1 channel/node)
• FRA disk group is comprised of 72 – 193 GB LUNs
• _BACKUP_KSFQ_BUFCNT = 16 (default) => 200 MB/s (720 GB/hr)
= 32 => 250 MB/s (900 GB/hr)
= 64 => 300 MB/s (1 TB/hr)
• 50% read rate improvement when correctly tuned
• Yes, I can fully drive 2 LTO-3s with 2 channels, based on
BACKUP VALIDATE testing

53
Test 1 – 1 Node with 2 Channels
• Test _BACKUP_KSFQ_BUFCNT = 16, 32, 64

54
Test 2 – 2 Channels with 1 Channel per Node
Node 1 - _BACKUP_KSFQ_BUFCNT = 16, 32, 64
Node 2 - _BACKUP_KSFQ_BUFCNT = 16, 32, 64

55
Initial Results of Tape Backup Testing
Media Server Installed on RAC Nodes
•1 channel per node (2 channels total) + 2 LTO-3 Drives
•Observed backup rate of 200 MB/s (720 GB/hr) vs.
theoretical 280 MB/s (1 TB/hr with 2 x 140 MB/s for LTO-3)
•Recall: RMAN VALIDATE (read rate) > 1 TB/hr, so RMAN not
bottleneck
•Other possible factors:
• Database compression – Yes, but can’t account for all of the
lower backup rates
• Tuning – Additional performance might be gained by tuning
media server parameters
• Hardware Setup – HBA ports configuration or how tapes are
zoned to the servers

56
After Rezoning Tape Drives to HBAs
2 Channels with 1 Channel per Node
• Node 1 ~ 145 MB/s
• Node 2 ~ 120 MB/s
• 33% improvement after rezoning
Node 1 Backup Throughput:

57
Four Channels with 2 Channels per Node
Achieved Backup Rate ~ 1.6 TB/Hour
Node 1 Backup Throughput ~240 MB/s:
Node 2 Backup Throughput ~200 MB/s (due to other high query activity)

58
Summary
• Identify the bottlenecks in your system and know your
theoretical backup speed
Performance Issue
• Re-architect if bottleneck is hardware related
• Tune RMAN parameters to get the most out of your backup
hardware
• 50% increase in RMAN read performance was achieved by
tuning _BACKUP_KSFQ_BUFCNT
• RMAN should never be the bottleneck
• Keep tuning as new bottlenecks are discovered..

60
Summary
• Recovery & business requirements drive the design of backup / data
protection strategy
– Disk and/or tape, offload to Data Guard?
• RMAN performance tuning is all about answering the question:
– What is my bottleneck? (then removing it)
• Determine maximum throughput/ceiling of each backup phase
– Read blocks into input buffers (memory, disk I/O)
– Copy to output buffers (CPU, esp. compression and/or encryption)
– Write to storage media (memory, disk/tape I/O, media management/HW
configuration)
• Get knowledgeable with media management and tape configuration
– A smarter DBA = smarter case to make with the SA!

61
RMAN Trivia Time..
1. In which Oracle release did RMAN first appear?
2. In which Oracle release did the multi-section backup
feature first appear?
3. What is the negative effect of RMAN + tape-side
multiplexing?
4. Which view reports throughput and memory buffer
usage during backup?
5. How does Oracle Database 11g Release 2 RMAN with
ASM behave differently in memory buffer allocation
versus older releases?

62
Key HA Sessions, Labs, & Demos by Oracle Development
Monday, 20 Sep – Moscone South *
3:30p Extreme Consolidation with RAC One Node, Rm 308
4:00p Edition-Based Redefinition, Hotel Nikko, Monterey I / II
5:00p Five Key HA Innovations, Rm 103
5:00p GoldenGate Strategy & Roadmap, Moscone West, Rm 3020
Tuesday, 21 Sep – Moscone South *
11:00a App Failover with Data Guard, Rm 300
12:30p Oracle Data Centers & Oracle Secure Backup, Rm 300
2:00p ASM Cluster File System, Rm 308
2:00p Exadata: OLTP, Warehousing, Consolidation, Rm 103
3:30p Deep Dive into OLTP Table Compression, Rm 104
3:30p MAA for E-Business Suite R12.1, Moscone West, Rm 2020
5:00p Instant DR by Deploying on Amazon Cloud, Rm 300
Wednesday, 22 Sep – Moscone South *
11:30a RMAN Best Practices, Rm 103
11:30a Database & Exadata Smart Flash Cache, Rm 307
11:30a Configure Oracle Grid Infrastructure, Rm 308
1:00p Top HA Best Practices, Rm 103
1:00p Exadata Backup/Recovery Best Practices, Rm 307
4:45p GoldenGate Architecture, Hotel Nikko, Peninsula
Thursday, 23 Sep – Moscone South *
10:30a Active Data Guard Under the Hood, Rm 103
1:30p Minimal Downtime Upgrades, Rm 306
3:00p DR for Database Machine, Rm 103
Hands-on Labs Marriott Marquis, Salon 10 / 11
Monday, Sep 20, 12:30 pm - 1:30 pm Oracle Active Data Guard
Tuesday, Sep 21, 5:00 pm - 6:00 pm Oracle Active Data Guard
Demos Moscone West DEMOGrounds
Mon & Tue 9:45a - 5:30p; Wed 9:00a - 4:00p
Maximum Availability Architecture (MAA)
Oracle Active Data Guard
Oracle Secure Backup
Oracle Recovery Manager & Flashback
Oracle GoldenGate
Oracle Real Application Clusters
Oracle Automatic Storage Management
* All session rooms are at Moscone South unless otherwise noted
* After Oracle OpenWorld, visit
http://www.oracle.com/goto/availability

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