SAN, Blade, VPC by ubxKoBx

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									SAN, Blade, VM Ware

      Larry M. Gerlt
A+, CNE 3, MCSE 4, CCNA
               Overview
• SAN and Blades
  – Advantages
  – Disadvantage
  – Who Mosaic chose and Why
• VM Ware
  – Advantages/Uses
  – Disadvantages/Non-Uses


                               2
 Advantages - Why Use a SAN
• Data Safety
  – Lost 3 hard drives in one weekend.
  – Had only one hot spare
  – Did not lose any data
• Disk Space Utilization
  – Pockets of Space on various Server Raids
  – Seldom had free space where needed
  – On a SAN you grow the volume as needed

                                               3
         SAN Disadvantages
• Initial Investment
  – Cost of SAN
  – Cost of Fiber cards for servers
  – Cost of Fiber switches
• Single Point of failure




                                      4
 SAN Risk Management SPOF
• Dual Cisco fiber switches
• Dual fiber cards for production servers
• Latest iteration – boot from SAN




                                            5
          XioTech Features
• Standard SAN features
  – Redundant Power Supplies
  – Raid 1, 5, 10
  – Central Management
  – Can define selected disk(s) for
    • Separate disk space pool
    • Limiting to specific users



                                      6
          XioTech Features
• Unique to XioTech
  – Change Raid configuration on-the-fly
  – Upgrade to larger drives one drive at a time
  – Mix and match drives without having separate
    pockets of space
  – Survive multiple simultaneous hard drive
    failures



                                               7
    Blade Server Advantages
• Minimal Rack Space
• Reduced power consumption
• Ability to reboot “hung” server remotely
• Ability to remotely totally down a server
  and then bring back up.
• Central Management console


                                              8
  Blade Server Disadvantages
• Initial Investment
  – We needed to purchase 7 servers to reach a
    break even point verses buying 1 U servers
• Purchasing more servers than fit in one
  Blade Center
  – Again face cost deficit unless buying 7 or
    more servers



                                                 9
                 IBM Blades
• 14 server slots per blade center
• Only vender offering quad processor
  servers when we purchased
    – Quad proc. Servers require 2 slots
•   Single or dual fiber port fiber card
•   Single or dual port NICs
•   On board CDRom and floppy
•   Fit in standard Computer Cabinet
                                           10
 Router                                                                             Router



                      Oma LAN                              COS LAN
N/W Switch            Mosaic, Omaha                     CoSentry, Bel.          N/W Switch

                               Top Routers - Out to Internet
                                   Solid lines = TCP/IP
                                   Dashed Lines = Fiber
Pix 515                                                                         Pix 520
                             Dotted Line – SAN Repl. via private line
Firewall                                                                        Firewall
                         San w/backup & Mag Classic server – Oma
                         San with Mag 3D and prod RA data - COS

                                                                               N/W Switch
N/W Switch



           Server                                                          Server

                    Fiber Switch                      Fiber Switch


                                                                         SAN
      SAN           Fiber Switch                       Fiber Switch




                      N/W Switch                    N/W Switch
                                                                                             11
       VM Ware Advantages
• Server Consolidation
  – Multiple servers on one
  – Totally separate virtual server environment for
    applications that do not “play well with others.”
  – Reduced overall Hardware costs
• DRBC
  – Can have backup copy of a server
  – Can drag & drop to other hardware running
    VM Ware

                                                   12
    VM Ware Advantages (2)
• Reduced new server build time
  – Can have a generic server to copy for new
    servers
• Reduced Console requirements
  – 1 server connected to KB/Mouse/Monitor
    switch
  – Multiple servers managed on single server



                                                13
     VM Ware Disadvantages
• Initial Hardware Cost
  – Requires beefed up server
     • Lots of Ram
     • More disk space
     • Dual processor – prefer quad
• NIC Overload
  – Must choose application servers that do not
    require 100% of NIC (may use second NIC)

                                                  14
    VM Ware Disadvantages
• Processor overload
  – Do not recommend for memory and processor
    intensive applications (SQL or other data
    base server




                                           15
                 Summary
• SANs, Blades, & VM Ware:
  – Improved disk space utilization
  – Increased DRBC
  – ROI for hardware $ spent




                                      16

								
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