HP 418371-B21 - Dual Port 72 GB Hard Drive Support and Manuals
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Popular HP 418371-B21 Manual Pages
Hot-Pluggable SAS and SATA Hard Drive Installation Instructions for HP ProLiant Servers - Page 1
... system to http://www.hp.com/jp/manual/.
Be sure you are removing a failed drive, begin with a hard drive kit number and a serial number. If you are set forth in their original packaging until installation. a. Nothing herein should be construed as Hard Drive Compatibility tables, Important cards, and updated installation instructions, refer to install a hot-pluggable hard drive...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 1
... 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 comparisons based on form factor 8 Performance comparisons based on platter speed 11 SAS drive specifications ...13 Conclusion...13...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 2
...Error management and pre-failure warning • Redundant Array of Independent Drives (RAID)
HDD controllers employ on the desired balance of protection and performance, along with HP ADG Technology" available at http://h20000.www2.hp.com/bc/docs/support...the latest small form factor SAS drives available from HP at http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01071496/c01071496.pdf ....
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 3
...-point 3 GB/s (300 MB/s) Yes, to run per year (100 percent duty cycle = 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 data rates are for high input/out applications. The AFR is less applicable for...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 4
... most work (that affect the performance and operating efficiency of SAS HDDs for enterprise-class systems. For a general discussion of SAS technology, refer to the HP white paper "Serial Attached SCSI Technology" available at the following HP web page:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00302340/c00302340.pdf
Since RAID strategies and AFR numbers...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 5
...GB, 5.4K, 25/75 R/W cache SAS, 72-GB, 15K, 25/75 R/W cache
4 Mixing SATA and SAS drives within a logical drive is NOT allowed.
5 Figures 1 through 3 are more easily achieved using the following configuration:
• System: HP StorageWorks 60 Modular Smart Array • SAS Controller: HP Smart Array P400, firmware version 4.12, 512 MB cache, RAID 1
Figure 1. HDD performance comparisons...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 6
... 5.4K, 25/75 R/W cache (baseline performance level) SATA, NCQ 120-GB, 5.4K, 25/75 R/W cache SAS, 72-GB, 15K, 25/75 R/W... cache
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 1 256 128 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...
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... RANDOM WRITE
8KB OLTP
64KB RANDOM READ
64KB RANDOM WRITE
SATA, Non-NCQ 60-GB, 5.4K, 25/75 R/W cache SATA, NCQ 120-GB, 5.4K, 25/75 R/W cache SAS, 72-GB, 15K, 25/75 R/W cache
256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 ...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 8
...SAS drives:
• System: HP StorageWorks 70 Modular Smart Array • SAS Controller: HP Smart Array P800, firmware version 4.06, 512 MB cache
Figure 4. The following configuration was used for LFF SAS drives
4 SFF SAS drives 6 SFF SAS drives 8 SFF SAS drives 12 SFF SAS...4, SFF SAS drive arrays yield better performance in RAID strategies. Performance comparison: SFF to LFF 15K
130%
...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 9
... 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
RAID 1 is a strategy for most RAID 1 configurations.
9 SFF 15K Performance compared to LFF 15K 72-GB SAS drives with HP Smart Array P800 Controller, RAID 1 (128K)
% Diff - Figure 5.
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 10
...
500
0
4KB RANDOM READ
4KB RANDOM WRITE
SA-P800, RAID-5 (64KB) -
RAID5 performance of SFF SAS drives with the HP Smart Array P800 Controller using RAID 5 (64K). Figure 6. 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...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 11
...
F: Random IOPS
IOPS
IOPS
10K RPM SAS HDD
15K RPM SAS HDD
As indicated by the storage system. Performance comparisons based on platter speed
The charts in 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. Figure 7. Charts 7A...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 12
... 10K drive arrays. of drives 3 4 5 6 7 8
3 4 5 6 7 8
3 4 5 6 7 8
10K HDD & P400 controller
15K HDD & 6402 controller
As indicated in Figure 8, 15K drive arrays consistently provide higher random read IOPS than the RAID 5 stripe size (128 KB in this case). Figure 8. Random read performance of 10K and 15K SFF SAS drives for the specific application.
12 For optimum performance, the...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 13
... publication. The right HDD type is 100 percent, SFF SAS drives excel in performance and reliability.
NOTE: Drive types and specifications are used in power consumption.
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 U space can be...
Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 14
... constituting an additional warranty. Nothing herein should be liable for technical or editorial errors or omissions contained herein. TC080502TB, May 2008 Resource description QuickSpecs for HP products and services are set forth in the express warranty statements accompanying such products and services. For more information
For additional information, refer to the resources listed below...
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