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Systems & Technology Group Presentation Title | Presentation Subtitle | IBM Confidential © 2006 IBM Corporation 3 MD3000 Cons No expansion! – Supports 15 drives internally – Dell claims that 30 and 45 drives supported by connecting to MD1000 enclosure are supported soon, but not at announce of the MD3000 Only 512MB of Cache per controller! – When memory is scarce, more pages are written to disk, resulting in increased disk activity. More disk spindles will be required to off-set this lack, but MD3000 is currently limited to 15 disks! Yet another GUI for Dell’s entry-level solution! – The ‘MD Storage Manager’ is not the same application as that managing the AX150 line of entry-level enclosures from Dell Less than ideal for Exchange environments! – Best-practices for Exchange require a N+1 ‘Hot-standby’ server. However, this will never be possible with the limited number of IN ports on MD3000. Large! – 3U Active Passive Hot-standby Server (N + I)
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Systems & Technology Group
IBM Confidential © 2006 IBM Corporation
DS3000 series competitive presentationIBM DS3200 compared to Dell MD3000
2
Systems & Technology Group
Presentation Title | Presentation Subtitle | IBM Confidential © 2006 IBM Corporation
MD3000 Pros
Dell finally uses higher-performance SAS HDDs
Dual Controller models with optional additional I/O port
Relatively inexpensive solutionNote: DS3200 prices will be extremely competitive with this
product!
3
Systems & Technology Group
Presentation Title | Presentation Subtitle | IBM Confidential © 2006 IBM Corporation
MD3000 Cons No expansion!
– Supports 15 drives internally– Dell claims that 30 and 45 drives supported by connecting to
MD1000 enclosure are supported soon, but not at announce of the MD3000
Only 512MB of Cache per controller!– When memory is scarce, more pages are written to disk,
resulting in increased disk activity. More disk spindles will be required to off-set this lack, but MD3000 is currently limited to 15 disks!
Yet another GUI for Dell’s entry-level solution!– The ‘MD Storage Manager’ is not the same application as that
managing the AX150 line of entry-level enclosures from Dell Less than ideal for Exchange environments!
– Best-practices for Exchange require a N+1 ‘Hot-standby’ server. However, this will never be possible with the limited number of IN ports on MD3000.
Large!– 3U
Active Active
Passive
Hot-standby Server (N + I)
4
Systems & Technology Group
Presentation Title | Presentation Subtitle | IBM Confidential © 2006 IBM Corporation
MD3000 compared to DS3200
MD3000MD3000 DS3200DS3200Height (in rack) 3U 2UHost ports Up to 4 Up to 6Host port speed 3Gb/s x4 3Gb/s x4Drive ports 2 2Max drives supported 15 * 48Drive type supported SAS SASEffective drive speed 3Gb/s 3Gb/sCache Memory / controller 500MB Up to 1GB
Replication services Yes Yes
* Support for up to 45 SAS and SATA drives expected 1H07 ** By configuring MD3000 without SAS HBA, and without any HDDs
