Orhan BIYIKLIOGLU feat Husnu SENSOY
1
Orhan Bıyıklıoğlu
• UNIX/Linux experience over
10 years.
•
Certified Engineer.
• Member of the systems
administration team
responsible with more than
2000 UNIX servers.
Hüsnü Şensoy
• Oracle Development & DBA
experience over 6 years.
• Oracle DBA of the Year
2009.
•
on BI.
• ORACLE
experience over 120 TB of
customer data.
Orhan BIYIKLIOGLU feat Husnu SENSOY
2
 Unified Storage Systems
101
 Solutions to Database B&R
Challenges using Unified
Storage Systems.
 Unified Storage Best
Practices for B&R.
 Sample Designs using
Unified Storage Systems
 Conclusion
Orhan BIYIKLIOGLU feat Husnu SENSOY
3
Solidify Oracle RMAN with Oracle Sun Storage 7000 Unified Storage Systems
Orhan BIYIKLIOGLU feat Husnu SENSOY
4
Sun Storage 7110
 1 socket
 Up to 8GB RAM
 14x SAS 10K RPM Drives
 2 TB or 4.2 TB
 Only 2U
Sun Storage 7410
 4 / 8 sockets
 Up to 256 GB / 512 GB RAM
Sun Storage 7310
 Up to 576 TB raw storage
 2 / 4 sockets
 Up to 600 GB / 1.2 TB SSD Read Flash
 Up to 64 GB / 128 GB RAM
Accelerator (SSD)
 Up to 192 TB raw storage
 Write Flash Accelerator option (SSD)
 Up to 600 GB / 1.2 TB SSD Read
 Hybrid Storage Pool I/O Acceleration
Flash Accelerator (SSD)


Write Flash Accelerator option
(SSD)
Hybrid Storage Pool I/O
Acceleration
Orhan BIYIKLIOGLU feat Husnu SENSOY
5
Application
ZFS Hybrid Storage Pool
ZIL
L2ARC
Pool
Write SSDs
Read SSDs
HDDs
Orhan BIYIKLIOGLU feat Husnu SENSOY
6
Orhan BIYIKLIOGLU feat Husnu SENSOY
7
Solidify Oracle RMAN with Oracle Sun Storage 7000 Unified Storage Systems
Orhan BIYIKLIOGLU feat Husnu SENSOY
8
No compression option for image backups available in RMAN
No storage conservative way to store multiple copies of same
data item in RMAN.
Host interference in tiering to ternary storage.
Full/Partial replication of multiple databases using same
backup.
Restore need of base backup in case of an erroneous recovery
during point in time recovery.
Replication of disk backup to remote destination.
Orhan BIYIKLIOGLU feat Husnu SENSOY
9
Now
Image backup/Backupset Level 0
#
1
#
2
One Week Ago
#
3
#
4
Three Days Before
Recovery Range
run {
RESTORE DATABASE FROM TAG WEEKLY_FULL_BCKP;
}
run {
[SET UNTIL SCN x|SEQUENCE x|TIME ‘x’]
RECOVER DATABASE FROM TAG DAILY_INC_BCKP;
}
Orhan BIYIKLIOGLU feat Husnu SENSOY
10
#
1
Image Backup
#
2
#
3
#
4
#
5
#
6
#
7
Advantage
One Week Ago
Faster recovery
due to minimized
incremental
applies.
Disadvantage
Orhan BIYIKLIOGLU feat Husnu SENSOY
Image copies
can’t benefit from
RMAN binary
compression
No way to go
back more than a
day
11
RMAN Compression
ZFS Compression
Orhan BIYIKLIOGLU feat Husnu SENSOY
12
120
100
120
100
100
80
60
40
100
80
50.25
60
31.75 29.41
27.70
37.26
40
20
30.64
20
0
0
None
Orhan BIYIKLIOGLU feat Husnu SENSOY
LOW
MEDIUM
13
Now
#3
0
Image #4
Image #3
Image #2
Image #1
#1
#2
#3
#4
#5
#6
#7
…
#3
0
#8
#9
#1
0
#1
1
#1
2
#1
3
#1
4
#1
5
…
#3
0
#8
#9
#1
0
#1
1
#1
2
#1
3
#1
4
#1
5
…
#3
0
One Month Ago
Two Weeks Ago
Last Night
One Week Ago
Orhan BIYIKLIOGLU feat Husnu SENSOY
14
• Assume a database of
size 10 TB
• Daily change rate of
500 GB
• 4x10 TB image
backups
• (30+23+15+1)x500
GB incremental
backups
• 75 TB of backup
storage
Orhan BIYIKLIOGLU feat Husnu SENSOY


15
•
•
Ternary
Storage
Open Storage
7000
Ternary
Storage
Database
Host
NDMP
NFS
Database
Host
RMAN will build a logical channel between Open Storage 7000 to
ternary storage
This cause
•
CPU consuption on database host
•
HBA utilization on database host
•
NIC utilization on databse host
Backup
Host
Orhan BIYIKLIOGLU feat Husnu SENSOY
Snapshot
Open Storage
7000
16
• It was always a hard
issue to clone a
database before 11g.
• Active Database
Duplication makes it
impressively easier in
terms of configuration.
• But it is still a time
consuming event.
Orhan BIYIKLIOGLU feat Husnu SENSOY
17
1. Create a readonly snapshot
2. Make it read & write clone
3. Expose those clones to clone host
over NFS
4. Do classical database recovery
Clone
Database
Host
Image
Copies
FRA
Incremental
Backupsets
Archivelogs
INC
Controlfile
Autobackup
OTHR
Open Storage
7000
Orhan BIYIKLIOGLU feat Husnu SENSOY
18
• Did you ever rollback a single database tablespace to get
a previous state of a table before an erroneous update
operation ?
• How do you decide on parameter for UNTIL clause ?
• What if you make a wrong decision ?
Bad transaction SCN
Older version than
you need
Image Backup
#
1
#
2
Image Backup
#
1
#
2
Bad transaction is
already applied
#
3
#
4
Orhan BIYIKLIOGLU feat Husnu SENSOY
19
1.
2.
3.
4.
5.
6.
Clone
Database
Host
Image
Copies
FRA
Incremental
Backupsets
Archivelogs
INC
Create a readonly snapshot
Make it read & write clone
Expose those clones to clone host over NFS
Do classical database recovery
Check the data
If there seems to be a problem return to step
1
Controlfile
Autobackup
OTHR
Open Storage
7000
Orhan BIYIKLIOGLU feat Husnu SENSOY
20
Database
Host
Open Storage
7000
Open Storage
7000
WAN
Remote
Remote
Host
Remote
Host
Remote
Host
Host
Orhan BIYIKLIOGLU feat Husnu SENSOY
Ternary
Storage
21
Solidify Oracle RMAN with Oracle Sun Storage 7000 Unified Storage Systems
Orhan BIYIKLIOGLU feat Husnu SENSOY
22
• Use IB or 10 Gbit network fabric to access unified
storage systems.
Workload
RDBMA
IPoIB
NFS Streaming Read
2.11 GB/s
1.47 GB/s
NFS Streaming Write
984 MB/s
753 MB/s
• Remember that current bottleneck on Unified Storage
Systems is PCIe 1.0 I/O interconnects.
• Refer to followings for more performance details on
Unified Storage Systems.
• Link 1
• Link 2
Orhan BIYIKLIOGLU feat Husnu SENSOY
23
• Choose 64K/128K blocksize for your
• Image copy
• Backupset
• archivelogs
Seconds
7000.00
• Remember that dedup and compression
options for shares are CPU
demanding operations. Don’t6000.00
use them unless you need them.
• Use RMAN compression whenever
possible unless you have a host CPU
5000.00
bottleneck because it will increase you effective write speed.
4000.00
• 11g Release 2 : LOW or MEDIUM
3000.00
• 11g Release 1 : LZIB
• Don’t use fast recovery with 2000.00
SWITCH option
1000.00
• Unless your production storage
has a comparable performance with unified storage
systems
0.00
1
2
4
8
12
• For fully parallelise the backup of BIGFILE
datafiles
useDOPSECTION
option
with 11g Release 1.
Copy
Backupset
Orhan BIYIKLIOGLU feat Husnu SENSOY
BZIP2
16
ZLIB
24
• Design multiple shares differentiated depending on your need.
• You can asynchronously move your backups to tape drivers from
unified storage systems
• But since those backup copies will require a restore from tape before
database restore or SWITCH operation.
• In case of a conflict with routine backup activity, use read-only snapshots
as tape copy source.
• Cleanup unnecessary snapshots & clones.
Orhan BIYIKLIOGLU feat Husnu SENSOY
25
RMAN
Backup
Share
Configuration
Solidify Oracle RMAN
with Oracle Sun
Storage 7000 Unified
Storage Systems
RMAN
Restore &
Recovery
Solution
Orhan BIYIKLIOGLU feat Husnu SENSOY
26
•
•
•
•
A system already running on NFS or another storage with a comparable performance.
A single disk copy is sufficient.
Quick recovery from failure is neccessary in case of a primary storage loss.
Database size very small with compared to Unified Storage Systems pool size.
ALTER SYSTEM SET DB_RECOVERY_DEST=‘/export/fra’;
RUN {
RECOVER COPY OF DATABASE
WITH TAG ‘DAILY_BACKUP';
Image
BACKUP
Copies
INCREMENTAL LEVEL 1
FOR RECOVER OF COPY WITH TAG ‘DAILY_BACKUP‘
DATABASE;
}
Incremental
Backupsets
RUN {
ALTER DATABASE MOUNT;
SWITCH DATABASE TO COPY;
RECOVER DATABASE;
ALTER DATABASE OPEN;
}
Orhan BIYIKLIOGLU feat Husnu SENSOY
Archivelogs
Controlfile
Autobackup
FRA
Open Storage
7000
27
ALTER SYSTEM SET DB_RECOVERY_DEST=‘/export/fra’;
RUN {
RECOVER COPY OF DATABASE
WITH TAG ‘DAILY_BACKUP';
BACKUP
INCREMENTAL LEVEL 1
FOR RECOVER OF COPY WITH TAG ‘DAILY_BACKUP‘
DATABASE TO DESTINATION ‘/export/inc’;
RUN {
SET COMPRESSION ALGORITHM ‘MEDIUM’;
RECOVER COPY OF DATABASE
WITH TAG ‘WEEKLY_BACKUP‘
UNTIL TIME ‘SYSDATE-7’;
BACKUP AS COMPRESSED BACKUPSET
INCREMENTAL LEVEL 1
FOR RECOVER OF COPY WITH TAG ‘WEEKLY_BACKUP‘
DATABASE TO DESTINATION ‘/export/inc’;
}
RUN {
ALTER DATABASE MOUNT;
RESTORE DATABASE FROM TAG ‘DAILY_BACKUP’
RECOVER DATABASE;
ALTER DATABASE OPEN;
}
}
•
•
Quick recovery using SWITCH is not an option
Two recovery capabilities are necessary
• To Just now
• To somewhere in last week
•
Image
Copies
Incremental
Backupsets
Archivelogs
DEDUP
LZJB
FRA
Unified Storage Systems pool is at comparable
size with production size.
Orhan BIYIKLIOGLU feat Husnu SENSOY
INC
ARCH
LZJB
Open Storage
7000
28
Solidify Oracle RMAN with Oracle Sun Storage 7000 Unified Storage Systems
Orhan BIYIKLIOGLU feat Husnu SENSOY
29
• Oracle 7000 Unified Storage Systems based on
• Commodity Hardware
• ZFS
• Analytics
is a strong product that will solidfy your RMAN backup & recovery routines.
• You can start testing Unified Storage Systems capabilities by
downloading VirtualBox & Oracle’s Sun Unified Storage
Simulator
• Unconference session Unified Storage Systems
• On Monday the 20th from 4-5pm I
• In Mason room @ the Hotel Parc 55 (55 Cyril Magnin Street, SF).
Orhan BIYIKLIOGLU feat Husnu SENSOY
30
Orhan BIYIKLIOGLU feat Husnu SENSOY
31