Systems & Technology Group IBM Confidential © 2006 IBM Corporation DS3000 series competitive presentation IBM DS3200 compared to Dell MD3000

Systems & Technology Group Presentation Title | Presentation Subtitle | IBM Confidential © 2006 IBM Corporation 2 MD3000 Pros  Dell finally uses higher-performance SAS HDDs  Dual Controller models with optional additional I/O port  Relatively inexpensive solution Note: DS3200 prices will be extremely competitive with this product!

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)

Systems & Technology Group Presentation Title | Presentation Subtitle | IBM Confidential © 2006 IBM Corporation 4 MD3000 compared to DS3200 MD3000DS3200 Height (in rack)3U2U Host portsUp to 4Up to 6 Host port speed3Gb/s x4 Drive ports22 Max drives supported15 *48 Drive type supportedSAS Effective drive speed3Gb/s Cache Memory / controller500MBUp to 1GB Replication servicesYes * Support for up to 45 SAS and SATA drives expected 1H07 ** By configuring MD3000 without SAS HBA, and without any HDDs