Optimizing Dell SCSI Solutions
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...; SCSI SOLUTIONS VER A02 TABLE OF CONTENTS A REFERENCE GUIDE FOR OPTIMIZING DELL SCSI SOLUTIONS 3 1. DELL'S PRODUCT OFFERING...14 PowerVault™ 220S & 221S Storage Enclosure 14 PERC - Common Features and Capabilities 22 SCSI ID Assignment...22 Multiple PV22xS Enclosures on the application profile 4 General RAID Configuration Guidelines ...5 Application specific guidelines...6 E-Mail Servers...6 Database Servers ...7 Web Servers...
...; SCSI SOLUTIONS VER A02 TABLE OF CONTENTS A REFERENCE GUIDE FOR OPTIMIZING DELL SCSI SOLUTIONS 3 1. DELL'S PRODUCT OFFERING...14 PowerVault™ 220S & 221S Storage Enclosure 14 PERC - Common Features and Capabilities 22 SCSI ID Assignment...22 Multiple PV22xS Enclosures on the application profile 4 General RAID Configuration Guidelines ...5 Application specific guidelines...6 E-Mail Servers...6 Database Servers ...7 Web Servers...
Optimizing Dell SCSI Solutions
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.... Selection of storage components not only impacts the effectiveness of an application. non-RAID (HBA) and RAID controllers (PERC) • Management Capabilities - Key storage components which impact the ...Dell SCSI Solutions 1. Introduction Enterprise storage applications involve interconnection of storage components, solution should then determine the relative importance for a given application. Storage solution provides reliable access to service • Redundancy - PAGE 3 11/17/2005 Any given storage application may be easy to data • Availability - PowerVault...
.... Selection of storage components not only impacts the effectiveness of an application. non-RAID (HBA) and RAID controllers (PERC) • Management Capabilities - Key storage components which impact the ...Dell SCSI Solutions 1. Introduction Enterprise storage applications involve interconnection of storage components, solution should then determine the relative importance for a given application. Storage solution provides reliable access to service • Redundancy - PAGE 3 11/17/2005 Any given storage application may be easy to data • Availability - PowerVault...
Optimizing Dell SCSI Solutions
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...applications and different operating environments; Different 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 beyond the scope of this ...less storage capacity than an e-mail store for Dell's Direct Attached Storage (DAS) products. For Gigabytes example, e-mail storage for choosing the right RAID level, and determining if clustering is the current amount of RAID and interconnects technologies - This defines the overall...
...applications and different operating environments; Different 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 beyond the scope of this ...less storage capacity than an e-mail store for Dell's Direct Attached Storage (DAS) products. For Gigabytes example, e-mail storage for choosing the right RAID level, and determining if clustering is the current amount of RAID and interconnects technologies - This defines the overall...
Optimizing Dell SCSI Solutions
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... used in situations where these are not required and maximum storage capacity and performances are essential. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 the server/storage solution and will determine what RAID configuration will be utilized in situations where the maximum availability, redundancy and performance are the priority considerations.
... used in situations where these are not required and maximum storage capacity and performances are essential. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 the server/storage solution and will determine what RAID configuration will be utilized in situations where the maximum availability, redundancy and performance are the priority considerations.
Optimizing Dell SCSI Solutions
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... capacity is required along with a decrease 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 depending on the size, the amount, and type of users. It...
... capacity is required along with a decrease 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 depending on the size, the amount, and type of users. It...
Optimizing Dell SCSI Solutions
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...data protection. Recommended for those solutions that require maximum storage capacity and only base data protection and performance. • RAID 50 - Recommended for enterprise mission critical database solutions where availability and redundancy and/or performance are the highest priority ...rule, the more mission critical the database is, the more data protection is acceptable. • RAID 5 - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 10 - Note: While these configurations are not recommended, they can range from some data protection ...
...data protection. Recommended for those solutions that require maximum storage capacity and only base data protection and performance. • RAID 50 - Recommended for enterprise mission critical database solutions where availability and redundancy and/or performance are the highest priority ...rule, the more mission critical the database is, the more data protection is acceptable. • RAID 5 - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 10 - Note: While these configurations are not recommended, they can range from some data protection ...
Optimizing Dell SCSI Solutions
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...or global internet portal sites that require maximum storage capacity and only base data protection and performance. • RAID 50 - Web Servers Web severs are usually high traffic systems where read operations are the most common disk ... 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 - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 5 - Performance is relatively static and changes are requested...
...or global internet portal sites that require maximum storage capacity and only base data protection and performance. • RAID 50 - Web Servers Web severs are usually high traffic systems where read operations are the most common disk ... 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 - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 5 - Performance is relatively static and changes are requested...
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...-8k Latency Sensitivity Moderate Growth Rate Low Criticality High • Table 2-10: OLTP RAID Guidelines Application OLTP Concatenated 0 Recommended RAID Level 1 10 Not Recommended 5 50 Possible Recommended: • RAID 10 - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 5 - Recommended for those solutions that service a large internet portal and performance is highly...
...-8k Latency Sensitivity Moderate Growth Rate Low Criticality High • Table 2-10: OLTP RAID Guidelines Application OLTP Concatenated 0 Recommended RAID Level 1 10 Not Recommended 5 50 Possible Recommended: • RAID 10 - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 5 - Recommended for those solutions that service a large internet portal and performance is highly...
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...file servers that require a balance between storage capacity and performance. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 50 - Possible: • RAID 1 - They can be restored in their scope. Recommended for file servers is usually backed ... Rate Varies Criticality Low • Table 2-12: Archival File Server RAID Guidelines Application File Archival Concatenated 0 Recommended RAID Level 1 10 Not Recommended 5 50 Possible Recommended: • RAID 10 - Recommended for situations which do not require high storage capacity....
...file servers that require a balance between storage capacity and performance. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • RAID 50 - Possible: • RAID 1 - They can be restored in their scope. Recommended for file servers is usually backed ... Rate Varies Criticality Low • Table 2-12: Archival File Server RAID Guidelines Application File Archival Concatenated 0 Recommended RAID Level 1 10 Not Recommended 5 50 Possible Recommended: • RAID 10 - Recommended for situations which do not require high storage capacity....
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...While this solution is not fault tolerant, RAID 0 may be a backup of important files...RAID 0 - User file stores Concatenated 0 Recommended RAID Level 1 10 Not Recommended 5 50 Possible Recommended: • RAID 5 - Possible solution situations which do not require high storage capacity. • RAID...User Store File Server RAID Guidelines Application File - Possible: • RAID 1 - This ...recommended solution. Not recommended: • RAID 0, Concatenated - Note: While these configurations...RAID 50 - Possible solution in the event of redundancy and...
...While this solution is not fault tolerant, RAID 0 may be a backup of important files...RAID 0 - User file stores Concatenated 0 Recommended RAID Level 1 10 Not Recommended 5 50 Possible Recommended: • RAID 5 - Possible solution situations which do not require high storage capacity. • RAID...User Store File Server RAID Guidelines Application File - Possible: • RAID 1 - This ...recommended solution. Not recommended: • RAID 0, Concatenated - Note: While these configurations...RAID 50 - Possible solution in the event of redundancy and...
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...Growth Rate High Criticality Varies • Table 2-16: Database sever RAID Guidelines Application Streaming Media Concatenated 0 Recommended RAID Level 1 10 Not Recommended 5 50 Possible Recommended: • RAID 5 - Possible: • RAID 1, RAID 10 - Possible solutions in situations which do not require high storage ... not recommended due to restore data, this may also be configured and utilized. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 that generally require a balance between storage capacity and performance. In general servers...
...Growth Rate High Criticality Varies • Table 2-16: Database sever RAID Guidelines Application Streaming Media Concatenated 0 Recommended RAID Level 1 10 Not Recommended 5 50 Possible Recommended: • RAID 5 - Possible: • RAID 1, RAID 10 - Possible solutions in situations which do not require high storage ... not recommended due to restore data, this may also be configured and utilized. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 that generally require a balance between storage capacity and performance. In general servers...
Optimizing Dell SCSI Solutions
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... poses a significant performance impact to the storage enclosure. If the system is to begin immediately. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Additional configuration factors Hot Spares Hot Spare functionality provides extra security availability and redundancy by replacing ...a failed drive, allowing the rebuild of the SCSI bus. See the controller user's guide for Optimal RAID Performance The PowerVault™ 22xS is recommended whenever possible. Use of Hot Spares is capable of offering increased performance by allowing multiple ...
... poses a significant performance impact to the storage enclosure. If the system is to begin immediately. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Additional configuration factors Hot Spares Hot Spare functionality provides extra security availability and redundancy by replacing ...a failed drive, allowing the rebuild of the SCSI bus. See the controller user's guide for Optimal RAID Performance The PowerVault™ 22xS is recommended whenever possible. Use of Hot Spares is capable of offering increased performance by allowing multiple ...
Optimizing Dell SCSI Solutions
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...high-performance, intelligent peripheral component interconnect (PCI) and PCI-Express to the mounting hardware and front bezel features. PowerVault 220S/221S Storage Arrays Performance U320 SCSI speed dual channel PCI-Express PERC 4 U320 controller ...RAID cards 3+1 Fan Redundancy, optional redundant power supply Supports cables up to 32TB per server Scales up to 12 meters from a PV220S to support multiple Dell storage environments and RAID configurations. Dell's Product Offering PowerVault™ 220S & 221S Storage Enclosure Dell™ PowerVault...
...high-performance, intelligent peripheral component interconnect (PCI) and PCI-Express to the mounting hardware and front bezel features. PowerVault 220S/221S Storage Arrays Performance U320 SCSI speed dual channel PCI-Express PERC 4 U320 controller ...RAID cards 3+1 Fan Redundancy, optional redundant power supply Supports cables up to 32TB per server Scales up to 12 meters from a PV220S to support multiple Dell storage environments and RAID configurations. Dell's Product Offering PowerVault™ 220S & 221S Storage Enclosure Dell™ PowerVault...
Optimizing Dell SCSI Solutions
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... up to implement RAID in a server. It provides reliable fault-tolerant disk subsystem management and is currently offering its fourth generation of PERC have included the PERC 2, PERC 3 and PERC 4 families. The following PERC solutions support the PowerVault 220S and 221S External SCSI...(PERC 4e/Di on this server) PE6850 ROMB (PERC 4e/Di on each solution. Dell is an ideal RAID solution for maximum bandwidth connectivity & expandability. Previous generations of RAID controllers, the PERC 4e family, supporting the industry standard Ultra320 SCSI storage interconnect. Throughput ...
... up to implement RAID in a server. It provides reliable fault-tolerant disk subsystem management and is currently offering its fourth generation of PERC have included the PERC 2, PERC 3 and PERC 4 families. The following PERC solutions support the PowerVault 220S and 221S External SCSI...(PERC 4e/Di on this server) PE6850 ROMB (PERC 4e/Di on each solution. Dell is an ideal RAID solution for maximum bandwidth connectivity & expandability. Previous generations of RAID controllers, the PERC 4e family, supporting the industry standard Ultra320 SCSI storage interconnect. Throughput ...
Optimizing Dell SCSI Solutions
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... (such as the PowerVault 220S) support the latest SCSI hard drives, currently specified as PowerEdge servers), to ensure the highest quality products. This adds tremendous value by a Dell warranty and may not deliver an acceptable customer experience. All hardware (disk drives, RAID controllers, cables, power supplies) purchased direct from Dell carries the Dell limited warranty1 and...
... (such as the PowerVault 220S) support the latest SCSI hard drives, currently specified as PowerEdge servers), to ensure the highest quality products. This adds tremendous value by a Dell warranty and may not deliver an acceptable customer experience. All hardware (disk drives, RAID controllers, cables, power supplies) purchased direct from Dell carries the Dell limited warranty1 and...
Optimizing Dell SCSI Solutions
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... to seven (7) HDD on each bus. Power disruptions (e.g., power short on one cable connected provide a level of the PV22xS be present. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 The primary EMM must always have undesirable consequences. SES functions by splitting the I/O traffic between two different physical data paths... 11/17/2005 Configurations with two EMMs and one bus will affect both halves of redundancy. In the event there is a catastrophic failure of SCSI RAID controllers (e.g. SCSI failures on a HDD) will not affect the other bus.
... to seven (7) HDD on each bus. Power disruptions (e.g., power short on one cable connected provide a level of the PV22xS be present. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 The primary EMM must always have undesirable consequences. SES functions by splitting the I/O traffic between two different physical data paths... 11/17/2005 Configurations with two EMMs and one bus will affect both halves of redundancy. In the event there is a catastrophic failure of SCSI RAID controllers (e.g. SCSI failures on a HDD) will not affect the other bus.
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...of the available SCSI addresses (refer to Figure 4-5 for Node 1 to Joined bus topology. Although both host systems, including the SCSI RAID controller, must be simultaneously accessed by both active/active and active/passive cluster configurations. In the event of both nodes have a single ...need to remain idle waiting for more information refer to two different host systems. The hardware configuration of PAGE 21 11/17/2005 Dell™ High Availability Clustering (for High Availability scenarios where access to the same storage, the disk arrays are available since the ...
...of the available SCSI addresses (refer to Figure 4-5 for Node 1 to Joined bus topology. Although both host systems, including the SCSI RAID controller, must be simultaneously accessed by both active/active and active/passive cluster configurations. In the event of both nodes have a single ...need to remain idle waiting for more information refer to two different host systems. The hardware configuration of PAGE 21 11/17/2005 Dell™ High Availability Clustering (for High Availability scenarios where access to the same storage, the disk arrays are available since the ...
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... they exceed a critical threshold level for the safe removal and replacement of the RAID group. SCSI Enclosure Services (SES) Environmental parameters such as they occur. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 modules is not recommended. By default, the audio... alerts on RAID array configurations, refer to the performance provided by the enclosure. On a RAID0 array...
... they exceed a critical threshold level for the safe removal and replacement of the RAID group. SCSI Enclosure Services (SES) Environmental parameters such as they occur. A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 modules is not recommended. By default, the audio... alerts on RAID array configurations, refer to the performance provided by the enclosure. On a RAID0 array...
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...Management capabilities with non-redundant PSU PAGE 26 11/17/2005 A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS Cable Connector VER A02 Controller Connector P-type connector - Availability Default depending on RAID High level (see Table 4-2 for a given topology) Same as depicted in Table ... Default Relatively better than Joined topology - U160/U320 Provides both data and management Relatively lower performance due to RAID controller configuration requirements Default Default Default Maximum Could be lower with Single ZEMM and non-redundant PSU Minimum (for...
...Management capabilities with non-redundant PSU PAGE 26 11/17/2005 A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS Cable Connector VER A02 Controller Connector P-type connector - Availability Default depending on RAID High level (see Table 4-2 for a given topology) Same as depicted in Table ... Default Relatively better than Joined topology - U160/U320 Provides both data and management Relatively lower performance due to RAID controller configuration requirements Default Default Default Maximum Could be lower with Single ZEMM and non-redundant PSU Minimum (for...
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... PAGE 27 11/17/2005 A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • Table 4-2: PV22xS Configuration Topologies Vs RAID Level Performance RAID Levels RAID 0 RAID 1 RAID 5 RAID 10 RAID 50 Joined Default RAID 0 performance Default Default Default Default PV22xS Configuration Topologies Split Cluster...It can be observed that selection of a PV22xS configuration topology impacts not only Application Attributes but also impacts RAID level performance. Besides these configuration topologies, PV22xS provides some common capabilities as listed below for the storage ...
... PAGE 27 11/17/2005 A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 • Table 4-2: PV22xS Configuration Topologies Vs RAID Level Performance RAID Levels RAID 0 RAID 1 RAID 5 RAID 10 RAID 50 Joined Default RAID 0 performance Default Default Default Default PV22xS Configuration Topologies Split Cluster...It can be observed that selection of a PV22xS configuration topology impacts not only Application Attributes but also impacts RAID level performance. Besides these configuration topologies, PV22xS provides some common capabilities as listed below for the storage ...