D0 Disk Array Replacement on d0ora2

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D0 Disk Array Replacement on d0ora2

• May 20, 2005

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What we Need

• Redundant Hardware
• Path Failover
• Load Balancing
• Growth to 10TB
• The Right Number of Spindles
• Good Support
• Good Price
• Ease of Maintenance

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What We Have - FC4500

• Dual 1Gb Paths w/Failover and Dynamic Load
  Balancing
• 2GB Processor Cache
• Size - 2.8TB now, with growth to 18.1TB
• 80 Drives (50 of them 73gb) making up 16 file
  systems
• Managing Software Shared w/CDF
• 1 Host Connection per SP
• EOL 12/2002, EOSL 9/2008

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Some Options

• Do Nothing
• StorageTek D240 new
• Sun StorEdge 3510 new
• EMC Clariion CX400 used
• EMC Clariion CX500 new

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Do Nothing

• Pros
• No Cost
• Array was 70 replaced in 01/04
• Continuing Hardware Support with 3rd party
• EOSL 9/2008
• Some growth available

• Cons
• Same Hardware
• Support Concerns

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StorageTek D240

• Pros
• New Hardware
• Sun to Acquire Company
• 4 2Gb Paths per SP
• 3.65TB - with 50 73GB Drives
• 112 Drive Capacity 16.3TB Max
• Global Hot Spares

• Cons
• Price - 100k
• 1GB SP Cache
• Separate Management Software and software support
  contract

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Sun StorEdge 3510

• Pros
• 4 2Gb Paths per SP
• Sun Support same as System
• 5.25TB with 36 146GB Drives
• Hardware Software Maintenance Covers both
  System Array

• Cons
• Price - 48k New
• 1GB SP Cache
• No Global Hot Spares 1 needed per 12 drives

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EMC Clariion CX400

• Pros
• 4 - 2Gb path per SP
• 4.5TB with 15 73GB 30 146GB Drives
• Supports 320GB ATA Drives
• 75 drive Capacity
• 4 or 8GB SP Cache
• Same Support Software Software Contract

• Cons
• Price - 92k Refurbished

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EMC Clariion CX500

• Pros
• 4 - 2Gb path per SP
• 4.5TB with 15 73GB 30 146GB Drives
• Supports 320GB ATA Drives
• 120 Drive Capacity
• 4 or 8GB SP Cache
• Same Support Software Software Contract

• Cons
• Price - 137k new