HP 507610-B21 Support Question

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Question posted by noor29285 on February 15th, 2012

Shall I Replace Single Port Sas With Dual Port Sas

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Related HP 507610-B21 Manual Pages

Hot-Pluggable SAS and SATA Hard Drive Installation Instructions for HP ProLiant Servers - Page 1

... packaging until installation. Install the hot-pluggable hard drive-Follow the steps shown on this procedure. Follow all hard drive handling precautions-Hard drives are removing the blank drive bezel, begin with step 2. 1. HP Japan Customer Care Center: 0120-014121 Installation overview 1. Review guidelines-When replacing a failed drive, refer to the documentation that can damage...

Hot-Pluggable SAS and SATA Hard Drive Installation Instructions for HP ProLiant Servers - Page 2

... the ejector lever in the full open position. Remove the failed hard drive from the disk enclosure. 5. Press the ejector button of the unit. 3. b. Slide the replacement drive into the disk enclosure. b. a. The locking hinge must be engaged behind the front panel of the hard drive. The installation is complete. 4. Press the ejector button, and pivot...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 1

......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 comparisons based on form factor 8 Performance comparisons based on platter speed 11...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 2

...Enterprise-class hard disk drives (HDD) must meet the maximum reliability and scalable performance goals of SAS drive technology. Reliability and performance are in stripes across multiple drives to ...RAID 6 with dual parity for improved performance and fault tolerance2 The choice of RAID strategy depends on storage technology. Hard disk controllers, interfaces, and drives have evolved ...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 3

...-point 3 GB/s (300 MB/s) Yes, to protocol overhead. [2] Through the use of a SATA port multiplier [3] Through the use of drives. Table 1. No 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...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 4

...2. Increasing the drive density also expands the choice of SAS technology, refer to...favor high-density systems, SFF SAS drives are an attractive solution for ... a system. SAS use for enterprise systems This section describes SAS design features that...drives offer a spindle-per-U advantage that affect the performance and operating efficiency of SAS... of SFF SAS drives inherently yield lower seek times...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 5

...SAS drives Systems that support SAS can be configured with HP Smart Array P400 Controller, RAID 1 RELATIVE PERFORMANCE (%) 1000% Sequential Operations, RAID 1 (128 KB) IOMETER 07.30.2004 900% 800% 700% 600% 500...GB, 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 4 Mixing SATA and SAS drives within a logical drive...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 6

... over non-NCQ SATA drives. Figure 2. The SAS arrays, however, are much faster than either of SAS drives. 6 Relative performance: random operations of non-NCQ SATA, NCQ SATA, and SAS 2-drive array with HP Smart Array Controller P400 Controller, RAID 1 RELATIVE PERFORMANCE (%) 700% Random Operations, RAID 1 (128 KB) IOMETER 07.30.2004 600% 500% 400% 300% 200...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 7

Figure 3. 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 900 800 700 600 500 400 300 200 100 0 4KB RANDOM READ 4KB RANDOM WRITE 4KB OLTP 8KB RANDOM READ...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 8

... compared to LFF 15K 72-GB SAS drives with differences in a RAID 0 solution than LFF SAS drive arrays. Performance comparison: SFF to...capacity and performance, RAID 0 does not provide any disk redundancy. 8 The following configuration was used for LFF SAS drives 4 SFF SAS drives 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 1 256 128...

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 RAID 1 is a strategy for most RAID 1 configurations. 9 Nevertheless, as indicated in Figure 5, SFF SAS drives provide better performance than LFF SAS drives for achieving redundancy rather than enhanced performance. Figure 5. SFF 15K Performance compared to LFF 15K 72-GB SAS drives with HP Smart Array P800 Controller, RAID 1 (128K) % Diff -

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 10

... (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 RANDOM READ 64KB RANDOM WRITE 256 128 64 32 16... 6 illustrates the IOPS performance of various array sizes of SFF 15K 72-GB SAS drive arrays THROUGHPUT (IO Per Second) 4500 4000 3500 3000 2500 2000 1500 1000...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 11

... users generating requests can increase with an HP Smart Array P800 controller using RAID 5. Figure 7. Performance comparison: 10K versus 15K RPM, RAID 5 controller and 6 SFF SAS drives A: Sequential read, Q1 B: Sequential read, Q4 IOPS IOPS C: Sequential read, Q8 D: Sequential read, Q16 IOPS IOPS E: Sequential read, Q32 F: Random IOPS IOPS IOPS 10K RPM...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 12

... 64 KB Random Read 512 KB Random Read 2000 1500 IOPS 1000 500 No. 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 this case). Figure 8 compares the random read performance of 10K and 15K SFF SAS drives for the specific application. 12 For optimum performance, the stripe size should...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 13

... on investment (ROI) for a listing and specifications of hard drive types are subject to change without a significant increase in today's server industry. Comparison of seek time and power consumption of HP SFF SAS drives Capacity/RPM Seek time: Single track Average Full stroke Power consumption: Idle Maximum 36 GB/15K 0.20 ms 3.0 ms 7.0 ms 5.74 watts...

Performance factors for HP ProLiant Serial Attached Storage (SAS) - Page 14

... notice. The information contained herein is subject to the resources listed below. HP shall not be construed as constituting an additional warranty. The only warranties for technical or... editorial errors or omissions contained herein. Resource description QuickSpecs for HP SAS drives "Serial ATA technology" technology brief Web address http://h18004.www1.hp.com/products...