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09-11-2008 02:44 AM
09-11-2008 02:44 AM
Raid 10 on DL380 G5
I have got a HP Proliant DL380 G5 with a Smart Array P400 Controller. Is it possible to use RAID 10 with this controller? If so how many drives are required?
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09-13-2008 05:26 AM
09-13-2008 05:26 AM
Re: Raid 10 on DL380 G5
Kevin
The SA-P400/256 supports RAID 0, 1, 1+0 and 5.
RAID 6 (Advanced Data Guarding) is available by adding either the BBWC upgrade or the 512 BBWC upgrade
Disk Requirements: An even number of hard disks with a minimum of four; All drives should be identical.
Array Capacity: (Size of Smallest Drive) * (Number of Drives ) / 2.
Storage Efficiency: If all drives are the same size, 50%.
Fault Tolerance: Very good for RAID 01; excellent for RAID 10.
Availability: Very good for RAID 01; excellent for RAID 10.
Degradation and Rebuilding: Relatively little for RAID 10; can be more substantial for RAID 01.
Random Read Performance: Very good to excellent.
Random Write Performance: Good to very good.
Sequential Read Performance: Very good to excellent.
Sequential Write Performance: Good to very good.
Cost: Relatively high due to large number of drives required and low storage efficiency (50%).
Special Considerations: Low storage efficiency limits potential array capacity.
Recommended Uses: Applications requiring both high performance and reliability and willing to sacrifice capacity to get them. This includes enterprise servers, moderate-sized database systems and the like at the high end, but also individuals using larger IDE/ATA hard disks on the low end. Often used in place of RAID 1 or RAID 5 by those requiring higher performance; may be used instead of RAID 1 for applications requiring more capacity.
The SA-P400/256 supports RAID 0, 1, 1+0 and 5.
RAID 6 (Advanced Data Guarding) is available by adding either the BBWC upgrade or the 512 BBWC upgrade
Disk Requirements: An even number of hard disks with a minimum of four; All drives should be identical.
Array Capacity: (Size of Smallest Drive) * (Number of Drives ) / 2.
Storage Efficiency: If all drives are the same size, 50%.
Fault Tolerance: Very good for RAID 01; excellent for RAID 10.
Availability: Very good for RAID 01; excellent for RAID 10.
Degradation and Rebuilding: Relatively little for RAID 10; can be more substantial for RAID 01.
Random Read Performance: Very good to excellent.
Random Write Performance: Good to very good.
Sequential Read Performance: Very good to excellent.
Sequential Write Performance: Good to very good.
Cost: Relatively high due to large number of drives required and low storage efficiency (50%).
Special Considerations: Low storage efficiency limits potential array capacity.
Recommended Uses: Applications requiring both high performance and reliability and willing to sacrifice capacity to get them. This includes enterprise servers, moderate-sized database systems and the like at the high end, but also individuals using larger IDE/ATA hard disks on the low end. Often used in place of RAID 1 or RAID 5 by those requiring higher performance; may be used instead of RAID 1 for applications requiring more capacity.
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
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