HP 504062-B21 - Dual Port 146 GB Hard Drive Support and Manuals
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Popular HP 504062-B21 Manual Pages
Hot-Pluggable SAS and SATA Hard Drive Installation Instructions for HP ProLiant Servers - Page 1
... are set forth in Japanese, please contact the HP Japan Customer Care Center and provide them with a hard drive is subject to install a hot-pluggable hard drive in their original packaging until installation. Nothing herein should be liable for HP ProLiant Servers
Read instructions completely before beginning installation procedure. To order a hard copy of HP hard drive documentation...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 1
... for HP ProLiant Serial Attached Storage (SAS)
technology brief
Abstract...2 Introduction...2
HDD controller technologies ...2 HDD interface technologies ...3 Key HDD design parameters for enterprise environments 3 SAS use for enterprise systems...4 HDD performance comparisons ...5 Performance comparison between SATA and SAS drives 5 Performance comparisons between SAS drives 8
Performance...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 2
... controllers and compatible HDDs to take advantage of the read /write reordering • Error management and pre-failure warning • Redundant Array of the latest small form factor SAS drives available from HP at http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00386950/c00386950.pdf
2 Mirroring and striping for redundancy and performance improvement •...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 3
... = 8760 hours per connection
15 [2]
HDD type supported
SCSI
SATA
Relative reliability
Good
Adequate
Best suited for
Enterprise servers (replaced by SAS)
Entry level servers
NOTES: [1] Actual ...infrastructures with an MTBF of 1,200,000 hours, the AFR is calculated as Integrated Drive Electronics or IDE), the server industry has transitioned through several HDD interface technologies:
&#...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 4
... with frequent random accesses. Comparison of drive support in two 1U HP ProLiant servers
Server
DL320 G5
DL360 G5
Drive type
LFF SAS [1] or SATA
SFF...HP web page:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00302340/c00302340.pdf
Since RAID strategies and AFR numbers favor high-density systems, SFF SAS drives are an attractive solution for the money is a key factor in setting...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 5
...HP StorageWorks 60 Modular Smart Array • SAS Controller: HP Smart Array P400, firmware version 4.12, 512 MB cache, RAID 1
Figure 1. Other factors such as operating system, application environment, controller type, RAID strategy, and general workload also play a part...comparisons between SATA and SAS drives
Systems that support SAS can be configured with HP Smart Array P400 Controller, RAID...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 6
... 8 4 2 1 256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2 1
The HP P400 controller supports NCQ, so the NCQ SATA drives provide an increase in the same configuration, and illustrates the substantial improvement of the SATA arrays and exhibit a substantial performance increase for...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 7
Throughput performance: random operations of non-NCQ SATA, NCQ SATA, and SAS 2-drive array with HP Smart Array P400 Controller, RAID 1
THROUGHPUT (IOPS)
1000
Random Opeations, RAID 1 (128 KB)
IOMETER 07.30.2004
900
800
700
600
500
400
300
200
...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 8
...
8KB RANDOM READ 8KB RANDOM WRITE
8KB OLTP
64KB RANDOM READ 64KB RANDOM WRITE
Level of performance for testing the SAS drives:
• System: HP StorageWorks 70 Modular Smart Array • SAS Controller: HP Smart Array P800, firmware version 4.06, 512 MB cache
Figure 4. SFF 15K Performance compared to LFF 15K 72-GB SAS...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 9
SFF 15K Performance compared to LFF 15K 72-GB SAS drives with HP Smart Array P800 Controller, RAID 1 (128K)
% Diff - Performance comparison: SFF to LFF 15K
...8KB RANDOM WRITE
8KB OLTP
64KB RANDOM READ 64KB RANDOM WRITE
Level of performance for LFF SAS drives
2 SFF SAS drives 4 SFF SAS rives 6 SFF SAS drives 8 SFF SAS drives 12 SFF SAS drives
256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 10
..., RAID-5 (64KB) - SFF 15K
4KB OLTP
8KB RANDOM READ 8KB RANDOM WRITE
4 SFF SAS drives 6 SFF SAS drives 8 SFF SAS drives 12 SFF SAS drives
8KB OLTP
IOMETER 07.30.2004
64KB RANDOM READ 64KB RANDOM WRITE
256 128 64 32 16 8 ... 4 2 1
256 128 64 32 16 8 4 2 1
256 128 64 32 16 8 4 2 1
10 RAID5 performance of SFF SAS drives with the HP Smart Array P800 Controller using RAID 5 (64K).
Figure 6.
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 11
...in an enterprise server environment a large number of users generating requests can increase with an HP Smart Array P800 controller using RAID 5. Chart 7F shows random read , Q32
F: Random...a queue depth of commands waiting to be serviced by the charts, 15K drives show the drive array performance for sequential reads per block size at a specific queue (Q) depth. Charts 7A through 7E ...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 12
... this case). Figure 8 compares the random read performance of 10K and 15K SFF SAS drives for the specific application.
12 Also, overall performance scales with the block size set to eight drives, using RAID 5 with array size (number of drives).
Note that performance is best when retrieving data blocks that are larger than the RAID...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 13
... specifications are used in power consumption. Refer to change without a significant increase in today's server industry. In the mission-critical, performance-oriented, enterprise server environment where hard drive duty cycle is the one that offer economical service and good dollar-per-gigabyte value. Comparison of seek time and power consumption of HP SFF SAS drives...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 14
...or editorial errors or omissions contained herein.
Resource description QuickSpecs for HP products and services are set forth in the express warranty statements accompanying such products and services. TC080502TB... HP SAS drives
"Serial ATA technology" technology brief
Web address
http://h18004.www1.hp.com/products/quickspecs/12244_na/12 244_na.html
http://h20000.www2.hp.com/bc/docs/support/...
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