+ Post New Thread
Results 1 to 6 of 6
How do you do....it? Thread, SAN setup - Dual fiber switches + 2 SANs in Technical; I have had for a while a IBM DS3400 configured via Fiber through 2 Brocade fiber switches. Straight forward enough: ...
  1. #1
    Paid_Peanuts's Avatar
    Join Date
    Jun 2007
    Location
    South Yorkshire
    Posts
    226
    Thank Post
    9
    Thanked 13 Times in 12 Posts
    Rep Power
    16

    SAN setup - Dual fiber switches + 2 SANs

    I have had for a while a IBM DS3400 configured via Fiber through 2 Brocade fiber switches.
    Straight forward enough:
    • Connect Fiber
    • Create an ALIAS
    • Create a ZONE and add the ALIAS's you need to the ZONE
    • add all ZONEs to the ZONE CONFIG (all ZONES member of the one ZONE CONFIG)


    So therefore i have "ESX1" ZONE which has the Alias's for ESX1 HBA1 + DS3400_Cont1 + DS3400_Cont2.

    The question is when i add an additional DS3400 dual controller into my environment - do i add the new SAN Alias's to the existing ZONEs in the Brocade config.

    OR do i create new ZONEs for example:
    "ESX1_SAN2" : ESX1 HBA + DS3400_2_cont1 + DS3400_2_cont2 and do this for all connections - basically creating a duplicate ZONEs apart from they contain the controllers ALIASs for the second SAN and the HBA for the ESX host?

    Hope this makes sense - it is very difficult to explain.

  2. #2
    DMcCoy's Avatar
    Join Date
    Oct 2005
    Location
    Isle of Wight
    Posts
    3,386
    Thank Post
    10
    Thanked 483 Times in 423 Posts
    Rep Power
    110
    Quote Originally Posted by Paid_Peanuts View Post
    I have had for a while a IBM DS3400 configured via Fiber through 2 Brocade fiber switches.
    Straight forward enough:
    • Connect Fiber
    • Create an ALIAS
    • Create a ZONE and add the ALIAS's you need to the ZONE
    • add all ZONEs to the ZONE CONFIG (all ZONES member of the one ZONE CONFIG)


    So therefore i have "ESX1" ZONE which has the Alias's for ESX1 HBA1 + DS3400_Cont1 + DS3400_Cont2.

    The question is when i add an additional DS3400 dual controller into my environment - do i add the new SAN Alias's to the existing ZONEs in the Brocade config.

    OR do i create new ZONEs for example:
    "ESX1_SAN2" : ESX1 HBA + DS3400_2_cont1 + DS3400_2_cont2 and do this for all connections - basically creating a duplicate ZONEs apart from they contain the controllers ALIASs for the second SAN and the HBA for the ESX host?

    Hope this makes sense - it is very difficult to explain.
    Do the servers have dual fibre connections (one to each switch)?

    I would probably do as you suggested, create additional zones for the existing ESX alias and new SAN. Assuming you can, I've not had the need to as my second san was iscsi.

  3. #3
    Paid_Peanuts's Avatar
    Join Date
    Jun 2007
    Location
    South Yorkshire
    Posts
    226
    Thank Post
    9
    Thanked 13 Times in 12 Posts
    Rep Power
    16
    Yeah i have 4 ESX servers - all of which have 2 single port HBAs. 1 HBA to 1 fiber switch, the other HBA connection to the second fiber switch.

    The DS3400 i have both have dual controllers. Therefore Controller A on DS340_1 has a connection to Fiber Switch (FS) 1. DS3400_2 to FS2. the repeat of that for controller B.

  4. #4
    DMcCoy's Avatar
    Join Date
    Oct 2005
    Location
    Isle of Wight
    Posts
    3,386
    Thank Post
    10
    Thanked 483 Times in 423 Posts
    Rep Power
    110
    Quote Originally Posted by Paid_Peanuts View Post
    Yeah i have 4 ESX servers - all of which have 2 single port HBAs. 1 HBA to 1 fiber switch, the other HBA connection to the second fiber switch.

    The DS3400 i have both have dual controllers. Therefore Controller A on DS340_1 has a connection to Fiber Switch (FS) 1. DS3400_2 to FS2. the repeat of that for controller B.
    Same as mine then, one switch with ESX port A with SAN ports A1/B1 in a zone and the other with ESX B and A2/B2.

    I unplugged all my fibre while fitting new servers and had lots of fun getting things back in the right ports to migrate the VMs to the new hosts

    As long as you configure one switch at a time and the hosts have the standby paths right (4 for each lun - 2 from each controller) then everything should be fine.

    Just out of interest are you using vSphere? I've been testing the fibre multipathing except while it used both FC cards evenly it was slightly slower than a single card (I guess the SAN just isn't fast enough to saturate a single channel).

  5. #5
    Paid_Peanuts's Avatar
    Join Date
    Jun 2007
    Location
    South Yorkshire
    Posts
    226
    Thank Post
    9
    Thanked 13 Times in 12 Posts
    Rep Power
    16
    I haven't moved to vSphere yet as I figure 3.5 is working perfectly for me so why mess with it?!
    vSphere isn't really going to give me anything new apart from possibly create problems for now.

  6. #6
    apaton's Avatar
    Join Date
    Jun 2009
    Location
    Kings Norton
    Posts
    283
    Thank Post
    54
    Thanked 106 Times in 87 Posts
    Rep Power
    35
    Quote Originally Posted by Paid_Peanuts View Post
    The question is when i add an additional DS3400 dual controller into my environment - do i add the new SAN Alias's to the existing ZONEs in the Brocade config.

    OR do i create new ZONEs for example:
    "ESX1_SAN2" : ESX1 HBA + DS3400_2_cont1 + DS3400_2_cont2 and do this for all connections - basically creating a duplicate ZONEs apart from they contain the controllers ALIASs for the second SAN and the HBA for the ESX host?
    Either way is valid.

    But I would always create a new zone, better for isolation. If ever you have controller on DS4300 crashing, AVT's and issuing LIP's etc... would protect you slightly better.

SHARE:
+ Post New Thread

Similar Threads

  1. Replies: 6
    Last Post: 11th March 2009, 03:06 PM
  2. Dot Hill SANs
    By meastaugh1 in forum Hardware
    Replies: 0
    Last Post: 6th February 2009, 12:52 PM
  3. Setup for dual boot XP and Vista on a network workstation
    By speckytecky in forum General Chat
    Replies: 4
    Last Post: 4th July 2008, 12:06 PM
  4. New fiber backbone and switches brainstorm with me!!!
    By ChrisH in forum Wireless Networks
    Replies: 32
    Last Post: 16th January 2006, 11:04 AM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •