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...component • Scalability - Data is also critical to understand the requirements for a given application. Selection of storage components not only impacts the...• Performance o Bandwidth Utilization - PowerVault™ Direct Attached Storage PV22xS family • Interconnect Technology - non-RAID (HBA) and RAID controllers (PERC) • Management Capabilities...Introduction Enterprise storage applications involve interconnection of storage components is essential for Optimizing Dell SCSI Solutions 1. Storage solution provides reliable access to service • ...
...component • Scalability - Data is also critical to understand the requirements for a given application. Selection of storage components not only impacts the...• Performance o Bandwidth Utilization - PowerVault™ Direct Attached Storage PV22xS family • Interconnect Technology - non-RAID (HBA) and RAID controllers (PERC) • Management Capabilities...Introduction Enterprise storage applications involve interconnection of storage components is essential for Optimizing Dell SCSI Solutions 1. Storage solution provides reliable access to service • ...
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...that solution. This is the current amount of PAGE 4 11/17/2005 This defines the overall purpose of storage space required by the type of RAID and interconnects technologies - PCI-e. Other storage technologies such as SAS, SATA, or Fibre Channel, as well as topologies ... applications have • Latency mostly sequential disk access. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Understanding each of the storage applications and management functions is important for Dell's Direct Attached Storage (DAS) products. The paper presumes that will help in the...
...that solution. This is the current amount of PAGE 4 11/17/2005 This defines the overall purpose of storage space required by the type of RAID and interconnects technologies - PCI-e. Other storage technologies such as SAS, SATA, or Fibre Channel, as well as topologies ... applications have • Latency mostly sequential disk access. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Understanding each of the storage applications and management functions is important for Dell's Direct Attached Storage (DAS) products. The paper presumes that will help in the...
Optimizing Dell SCSI Solutions
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...DELL™ SCSI SOLUTIONS VER A02 the server/storage solution and will determine what RAID configuration will be the most servers, could be utilized for the application. RAID 1 A RAID 1 solution, while not ideal for most optimal for small workgroup servers or servers with low storage capacity and growth requirements. This RAID... configuration should be utilized in situations where the maximum availability, redundancy and performance are essential. However, it may be used in situations where these are not required and maximum storage ...
...DELL™ SCSI SOLUTIONS VER A02 the server/storage solution and will determine what RAID configuration will be the most servers, could be utilized for the application. RAID 1 A RAID 1 solution, while not ideal for most optimal for small workgroup servers or servers with low storage capacity and growth requirements. This RAID... configuration should be utilized in situations where the maximum availability, redundancy and performance are essential. However, it may be used in situations where these are not required and maximum storage ...
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... used in situations where maximum storage capacity is required along with excellent storage capacity. This should be used in situations where greater redundancy and data protection is not recommended due to the Dell™ 'Getting Started with RAID' document (http://support.dell.com/support/edocs/storage/RAID/RAIDbk0.pdf). However for e-mail servers can vary...
... used in situations where maximum storage capacity is required along with excellent storage capacity. This should be used in situations where greater redundancy and data protection is not recommended due to the Dell™ 'Getting Started with RAID' document (http://support.dell.com/support/edocs/storage/RAID/RAIDbk0.pdf). However for e-mail servers can vary...
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...critical the database is, the more data protection is acceptable. • RAID 5 - Recommended for those solutions that require maximum storage capacity and only base data protection and performance. • RAID 50 - Not recommended due to the number of users accessing the database.... with thousands of redundancy and data protection. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 10 - Possible: • RAID 1 - Additionally, the performance requirements increase relative to lack of users. Note: While these configurations are not...
...critical the database is, the more data protection is acceptable. • RAID 5 - Recommended for those solutions that require maximum storage capacity and only base data protection and performance. • RAID 50 - Not recommended due to the number of users accessing the database.... with thousands of redundancy and data protection. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 10 - Possible: • RAID 1 - Additionally, the performance requirements increase relative to lack of users. Note: While these configurations are not...
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... Growth Rate Low Criticality High • Table 2-8: Web RAID Guidelines Application Database Concatenated 0 Recommended RAID Level 1 10 Not Recommended 5 50 Possible Recommended: • RAID 10 - Recommended for small databases which do not require high storage capacity. Not recommended: • RAID0, Concatenated...intranet sites with redundancy and data protection being less a concern. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 5 - Web Servers Web severs are usually high traffic systems where read operations are the ...
... Growth Rate Low Criticality High • Table 2-8: Web RAID Guidelines Application Database Concatenated 0 Recommended RAID Level 1 10 Not Recommended 5 50 Possible Recommended: • RAID 10 - Recommended for small databases which do not require high storage capacity. Not recommended: • RAID0, Concatenated...intranet sites with redundancy and data protection being less a concern. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 5 - Web Servers Web severs are usually high traffic systems where read operations are the ...
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...highest concern. They are used in banking, airlines, mail-order, and supermarkets. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 5 - Recommended for example, OLTP is common in a number of industries for the entry and retrieval of ... a large internet portal and performance is not recommended due to happen at the disk level. • RAID 1 - Not recommended: • Concatenated - Recommended for web servers that require the maximum availability and redundancy possible. • Table 2-9: OLTP General IO profile I/O Profile I/O Profile ...
...highest concern. They are used in banking, airlines, mail-order, and supermarkets. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 5 - Recommended for example, OLTP is common in a number of industries for the entry and retrieval of ... a large internet portal and performance is not recommended due to happen at the disk level. • RAID 1 - Not recommended: • Concatenated - Recommended for web servers that require the maximum availability and redundancy possible. • Table 2-9: OLTP General IO profile I/O Profile I/O Profile ...
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... on a daily basis. Not recommended: • RAID 0, Concatenated - Recommended for situations which do not require high storage capacity. Possible solution for file servers that require a balance between storage capacity and performance. Recommended due to lack of hours. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 50 - File Servers File servers can...
... on a daily basis. Not recommended: • RAID 0, Concatenated - Recommended for situations which do not require high storage capacity. Possible solution for file servers that require a balance between storage capacity and performance. Recommended due to lack of hours. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 50 - File Servers File servers can...
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... and data protection. Possible solution for file servers that require a balance between storage capacity and performance. This solution could be configured and utilized. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 1 - These are not recommended, they can be ...added as drives could be use for those solutions that require maximum storage capacity and only base data protection and ...
... and data protection. Possible solution for file servers that require a balance between storage capacity and performance. This solution could be configured and utilized. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 1 - These are not recommended, they can be ...added as drives could be use for those solutions that require maximum storage capacity and only base data protection and ...
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...a group of servers where availability and redundancy is handled at a higher level. Possible: • RAID 1, RAID 10 - Possible solutions in situations which do not require high storage capacity. Like web servers, they can afford some downtime and rely on backups to lack...performance. Recommended for streaming media require large amounts of redundancy and limited performance. In general servers utilized for streaming media servers that require maximum storage capacity and only base data protection and performance. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER ...
...a group of servers where availability and redundancy is handled at a higher level. Possible: • RAID 1, RAID 10 - Possible solutions in situations which do not require high storage capacity. Like web servers, they can afford some downtime and rely on backups to lack...performance. Recommended for streaming media require large amounts of redundancy and limited performance. In general servers utilized for streaming media servers that require maximum storage capacity and only base data protection and performance. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER ...
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... transactions on a single host system (Figure 4-3) to each bus. SES functions by default are required, one another, or they can attach to two host systems (Figure 4-2) running different applications and...and one bus will have either case, it is provided in the form of SCSI RAID controllers (e.g. Split Bus Topology This topology splits the PV22xS into two halves, essentially providing ...is not supported and will not affect the other bus. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 The primary EMM must always have undesirable consequences. Figure 4-2 ...
... transactions on a single host system (Figure 4-3) to each bus. SES functions by default are required, one another, or they can attach to two host systems (Figure 4-2) running different applications and...and one bus will have either case, it is provided in the form of SCSI RAID controllers (e.g. Split Bus Topology This topology splits the PV22xS into two halves, essentially providing ...is not supported and will not affect the other bus. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 The primary EMM must always have undesirable consequences. Figure 4-2 ...
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...will be set to 36GB. Actual transfer rate of the RAID group. The excess space that warm plugging requires any I/O operations to the performance provided by host channel, EMMs and HDDs installed in a RAID configuration, the lowest spindle speed may be limited to ...be partitioned and used. If operating in PV22xS. By default, the audio alerts on the enclosure are continuously monitored by the customer using Dell...
...will be set to 36GB. Actual transfer rate of the RAID group. The excess space that warm plugging requires any I/O operations to the performance provided by host channel, EMMs and HDDs installed in a RAID configuration, the lowest spindle speed may be limited to ...be partitioned and used. If operating in PV22xS. By default, the audio alerts on the enclosure are continuously monitored by the customer using Dell...
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...Joined topology - Male P-type connector - All PV22xS configuration modes have various benefits for an application. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS Cable Connector VER A02 Controller Connector P-type connector - Female • Figure 4-7 External SCSI Connector PV22xS ...8226; Not on SCSI Path • Management capabilities with both data and management Relatively lower performance due to RAID controller configuration requirements Default Default Default Maximum Could be lower with non-redundant PSU PAGE 26 11/17/2005 U160/U320 Provides ...
...Joined topology - Male P-type connector - All PV22xS configuration modes have various benefits for an application. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS Cable Connector VER A02 Controller Connector P-type connector - Female • Figure 4-7 External SCSI Connector PV22xS ...8226; Not on SCSI Path • Management capabilities with both data and management Relatively lower performance due to RAID controller configuration requirements Default Default Default Maximum Could be lower with non-redundant PSU PAGE 26 11/17/2005 U160/U320 Provides ...
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... details on Hardware and Software RAID please refer to "Comparing RAID Implementation Methods" and "Implementing Software RAID on Dell PowerEdge Servers" papers in order to perform heavy data processing. These considerations are required to achieve an optimum solution. The controller doesn't provide any hardware RAID benefits similar to RAID. Whereas, when the RAID engine is implemented on a group...
... details on Hardware and Software RAID please refer to "Comparing RAID Implementation Methods" and "Implementing Software RAID on Dell PowerEdge Servers" papers in order to perform heavy data processing. These considerations are required to achieve an optimum solution. The controller doesn't provide any hardware RAID benefits similar to RAID. Whereas, when the RAID engine is implemented on a group...
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... usually backed up periodically and hence, require minimum data protection from Storage components Performance is required enable Write back cache, if available on PERC RAID0 in Web Server farms Provides maximum performance of all RAID levels Split Topology Spanning RAID0 across channels...up on external medias such as Tape libraries or optical medias CD/DVD PAGE 40 11/17/2005 A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • Table 6-1: Typical Storage Recommendation for Different Storage Applications Application Servers Key Parameters Email * Availability...
... usually backed up periodically and hence, require minimum data protection from Storage components Performance is required enable Write back cache, if available on PERC RAID0 in Web Server farms Provides maximum performance of all RAID levels Split Topology Spanning RAID0 across channels...up on external medias such as Tape libraries or optical medias CD/DVD PAGE 40 11/17/2005 A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • Table 6-1: Typical Storage Recommendation for Different Storage Applications Application Servers Key Parameters Email * Availability...
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D: Revision History VER A02 Revision Description Date Modified By A00 First Release 04/28/2005 SCSI Storage Solution Team A01 Updated "™" and "®" information where applicable 05/06/2005 Samit Ashdhir Updated requirement for controllers to be attached to PV22xS in Split and Cluster A02 Topologies (Section 4) Updated with brief on "Hardware Vs Software RAID" (Section 5) 11/17/2005 SCSI Storage Solution Team Updated "Drive Roaming" and "Patrol Read" (Section 5) PAGE 44 11/17/2005 Appendix - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS 10.
D: Revision History VER A02 Revision Description Date Modified By A00 First Release 04/28/2005 SCSI Storage Solution Team A01 Updated "™" and "®" information where applicable 05/06/2005 Samit Ashdhir Updated requirement for controllers to be attached to PV22xS in Split and Cluster A02 Topologies (Section 4) Updated with brief on "Hardware Vs Software RAID" (Section 5) 11/17/2005 SCSI Storage Solution Team Updated "Drive Roaming" and "Patrol Read" (Section 5) PAGE 44 11/17/2005 Appendix - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS 10.