7. Database Server Roles
Understand your workload
OLTP
DSS (OLAP/Reporting/DW)
●
Real-time, day to day transactions
●
Data mining, reporting information
from OLTP
●
Short transactions, more random
write activity
●
Fewer, longer sequential reads.
●
●
Quick data access by many users
Immediate updates (IOPS)
●
Responsiveness to complex queries
is key (Throughput)
13. Optimization Best Practices
Drive Selection: SAS, SATA, or SSD?
ISS Solid State Drives
Avg IOP's Min
Avg IOP's Max
15K SAS Drives
10K SAS Drives
0
5000
10000
15000
19. Optimization Best Practices
Quick Review
Scale Up! Scale Out!
IO is a common bottleneck, best measured in IOPS
o RAID 10
o SSD’s or a hybrid of SAS/SSD
o NV Write caching for best performance
o Eliminate data path throughput limitations in PCI-E, network fabric and
controller selection
Memory:
o More memory = Less I/O stress
o 64GB-72GB in optimized configurations recommended
CPU:
o Use modern cpu’s with Turbo Boost and Hyper-Threading capabilities.
o Emphasis on core count and single thread cpu core performance
20. Optimization Best Practices
System Selection
DL380
G5
DL380
G6/G7
DL380
p G8
3Gb/s SAS
1.5GB SATA
6Gb/s SAS
3Gb/s SATA
PCI-E 2.0 SSD
6Gb/s SAS
6Gb/s SATA
PCI-E 3.0 SSD’s
RAID
512MB BBWC
1GB FBWC
2GB FBWC
Memory
32GB / 64GB
288GB / 384GB
384GB /768GB
CPU
3.33GHz / 4Core
3.6GHz / 6C
12MB / HT &
Turbo
3.5GHz / 12Core 30MB / HT
&Turbo2
Cost
$499 - $5199
$599-$9099
$4699-$15,899
Compare
Storage I/O: