Please validate my scheduled installation

Prepare a migration + expansion, here is the list of what I have to work with:

  1. 3 Dell R710 servers with 8xGbE x interfaces (each 4xBCM5716C on board, an expansion card 4 x Intel PRO/1000)
  2. 2 servers Dell 2950 x with 4xGbE interfaces each (2 x onboard, 2 x add-on cards)
  3. 2 x FAS2040 of NetApp (a chassis with two heads clustered, 4xGbE interfaces / hab.) with 1xDS4243 disc tray (total 36x300GB 15 k disks)
  4. 4 x 24-port gigabit switches (three are HP ProCurve E2510 - 24G, we're a 3COM 3824)
  5. 2 x FortiGate 200 b (active/passive cluster)
  6. vSphere Essentials Plus 4.1 bundle

The Setup will run several sites charge quite high on IIS + MS SQL (production and development), Exchange 2007 for users to a hundred and back end SQL for several internal applications. He resides in a collocation, all remote users, access is through links public VPN internet or site to site. IIS runs on multiple load-balanced servers and use of NetApp CIFS shares for shared storage.

The current plan is:

  • Two switches are designated for an application traffic, named LAN1 and LAN2
  • Two switches are designated for storage, named SAN1 and SAN2 traffic
  • SAN1 and SAN2, define the following VLANs:
    • VLAN2 - NFS
    • VLAN3 - CIFS
    • VLAN21 - iSCSI1
    • VLAN22 - iSCSI2
  • The LAN1 and LAN2, define the following VLANs:
    • VLAN4 - VMotion
    • VLAN5 - DMZ1
    • VLAN6 - DMZ2
    • VLAN7 - DMZ3
    • VLAN8 - LAN
    • VLAN9 - management
  • SAN1 and SAN2, 23-24 on each junction ports, define a VLAN 2 and 3 of the trunk, the two cables between switches
  • LAN1 and LAN2 ports of junction 21-22 on each, assign 4 VLAN Trunk, ports 23-24, the tag assigned VLAN 5-9 of the trunk, the cables to four between switches
  • On each head of NetApp, configure the network as follows:
    • vif0 - single mode VIF on e0a and e0b
      • VLAN2 on vif0
      • On vif0 VLAN3
    • VLAN21 on e0c
    • VLAN22 on e0d
    • Plug SAN1, e0b and e0d in SAN2 e0a and e0c
    • Assign the e0c and e0d to a target portal
  • On each vSphere host, configure the network as follows:
    • vSwitch0 - vmnic0 vmnic0 and vmnic4, order of use explicit failover, active, standby vmnic4
      It's something I'm not quite clear on - if I use two switches non-Stack with a bond between them, what I have to use explicit order of failover with active / standby on the switch, I leave it the default settings of the routing based on originating virtual port ID, or something else entirely? I can and do I need to use the tag detection failover detection?

  • Port group DMZ1, denominated 5
  • Port DMZ2 group, tagged 6
  • Port group DMZ3, labeled 7
  • Port group LAN, 8 tagged
  • The VMkernel port Management, 9 tag
  • Management, 9 tagged port group
  • vSwitch1 - vmnic1 vmnic1 and vmnic5, order of use explicit failover, active, standby vmnic5
    • 4 the VMotion VMkernel port, tag
  • vSwitch2 - vmnic2 vmnic2 and vmnic6, order of use explicit failover, active, standby vmnic6
    • VMkernel port NFS, tag 2
    • Port group CIFS, labeled 3
  • vSwitch3 - vmnic3
    • Port group iSCSI1, labelled 21
  • vSwitch4 - vmnic7
    • Port group iSCSI2, labeled 22
  • Connect LAN1, vmnic2 and vmnic3 SAN1, vmnic4 and LAN2, vmnic6 vmnic5 and vmnic7 in SAN2 vmnic0 and vmnic1
  • FortiGate 1 connects to LAN1 and SAN1, FortiGate 2 plugs to LAN2 and SAN2; each trio shares a drive system as well as in case the power goes down, a full path is left intact
  • vSphere using NFS to access VMDK
  • Each VM needs CIFS access Gets a vNIC connected to CIFS port group
  • Each VM that requires access to iSCSI (SQL, Exchange) obtains a vNIC connected to the port iSCSI1 group and a vNIC connected to the Group of ports iSCSI2, MCS is configured on both links
  • MSSQL is configured in a cluster with two nodes with a single instance, the nodes are kept on hosts different vSphere
  • Host IIS are grouped into batteries of web servers with nodes on hosts different vSphere, FortiGate is used as a load balancer and SSL proxy
  • A server 2950 (with the 6x2TB SATA drives in a RAID5 configuration) is running vCenter, an SME to share for backups with virtual PHD VMDK and a SMB share to replicate the contents of the NetApp CIFS share with robocopy.  on board two Broadcom network interface cards are configured with BACS3 in a team active SLB / standby and trendy LAN1 and LAN2, two network Intel of add-on cards do the same thing with SAN1 and SAN2
  • A 2950 (with 6x300GB readers SAS in a RAID5 configuration) server is a domain controller (two more virtual domain controllers are also present), runs an instance of SQL server used purely as a target mirror for production SQL and MS iSCSI target LUNS for Exchange LCR, networking serving is the same as vCenter
  • 2950 servers have DRAC5 card, but DRAC5 doesn't support tagging VLAN. I will try to configure it to use BCM5708 ports onboard (NIC selection: shared with failover) and set the LAN1 and LAN2 ports assigned to these servers to both marked and unidentified VLAN9, but I don't know if it will work. If it isn't, I can switch to the dedicated port, but will reduce redundancy. Yet, the DRAC is not a critical production function
  • . R710s running vSphere have the iDRAC6 Enterprise card that support VLAN tagging.

    Possible failures that I am counting for:

    • If a feeder of matrices, a FortiGate and two switches drop, their counterparts to pick up the load, CIFS and NFS connections are quickly restored, iSCSI loses one way, all servers, file server chassis and disc tray have double power supplies, each drive system is enough to run all the equipment (120V/30 a)
    • If a switch or a FortiGate, same thing as above with the exception of more limited scope
    • If a port or a whole NIC dies, same thing
    • If a host dies, MSCS switches to the SQL instance, balancer load FortiGate detects members dead and stops sending traffic their way, VMware HA restart affected VMs on two surviving hosts
    • If a head spinning or IOM die, the other head takes over and picks up the CIFS and NFS connections as well as iSCSI sessions
    • If the whole storage eating himself for some reason, I have backups of all VMDK valid to in the last 24 hours (PHD), a copy of all CIFS data valid at the last of six hours (robocopy) and a copy of all of the SQL and you exchange valid data bases to in the last seconds (mirror/CSF implementation); back to operations will take some time, for the most part limited by the time needed to fix or buy and install new hardware
    • If the vCenter host dies, management is affected until I have launch a new, but production is not affected. I also lose my VMDK and file backups until they are recreatet, but again, this does not affect the production
    • If the physical DC host dies, I lose my mirrors SQL and Exchange LCR copies until it is replaced, but the production is not affected (virtual domain controllers are used)
    • If I need the whole system cold start (for example, if there is a failure of the installation), I bring a host of first, then vCenter and NetApp, physical vSphere DC, so all virtual machines
    • If I need to reboot a host (patches, hardware maintenance, etc.), I use MSCS to leave running SQL instances, stop and migration of domain controllers and VMotion everything
    • If I need to recharge or replace an active switch, I use bright favor on NetApp controls and reorganize the adapters active / standby on VMware ESX before taking down
    • If the application data is deleted or damaged, it can be retrieved from NetApp snapshots (FAS2040 is purchased with a full bundle, so I can use SMSQL, SMBR, FlexClone, SMEs, etc.)
    • A point of failure more than I have not touched on yet - the mechanism provides only an external power supply. There is a fifth switch which is used exclusively to obtain a separation that feed between the FortiGates WAN ports two, and that the switch (and its drive system) are a single point of failure that can capture the entire cluster access. There is no budget for a dual redundant power (they want more $1 k/month for this feature), so this is a known risk. If it falls, the plan is to use 'remote hands' $150 / incident to restore connectivity via a different path (connect the power supply directly into a FortiGate or move the food to another PDU switch or move EXTENDED to another switch network cables)

    There is no budget for another site or a tape library with storage tape offsite to protect against site failure; It is a known risk that is aware of the management.

    This is based on a recommendation of the HA of Duncan Epping section in his book HA/DRS Deepdive technical.  And also here:

    http://www.yellow-bricks.com/2011/03/22/ESXi-management-network-resiliency/

    Tags: VMware

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