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brad12341

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18 years ago

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brad12341

207 Posts

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1036

October 17th, 2008 09:00

VCM and Gatekeeper devices

We recently received a new dmx4. The bin file delivered had a vcm volume (042) and 48 gatekeepeers (043 - 072). I am connecting the first windows host (ecc server that runs SE and SMC) to 8a1 and 9a1. The bin file had 042 (vcm) mapped to 8a1 and 9a1. It also had 8 gatekeepers on 8a1 and another 8 on 9a1. I masked these to the two hbas on the windows host. Below is the output from the sympd list. Do I really need 16 gatekeepeers for this host? Can I map and mask these same gatekeepers to other hosts? When going into windows diskmgmt, it is strange to see 18 small 3MB devices (8 gatekeepers and 1 vcm on each FA port).

F:\>sympd list -sid 4398

Symmetrix ID: 000xxxxxxxxx

Device Name Directors Device
--------------------------- ------------- -------------------------------------
Cap
Physical Sym SA :P DA :IT Config Attribute Sts (MB)
--------------------------- ------------- -------------------------------------

\\.\PHYSICALDRIVE5 0042 09A:1 02A:C1 2-Way Mir N/Grp'd VCM WD 3
\\.\PHYSICALDRIVE6 005B 09A:1 01D:D0 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE7 005C 09A:1 02A:D0 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE8 005D 09A:1 15C:C0 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE9 005E 09A:1 02A:C1 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE10 005F 09A:1 15C:D1 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE11 0060 09A:1 02B:D1 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE12 0061 09A:1 15D:C1 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE13 0062 09A:1 15A:D1 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE14 0831 09A:1 16D:D11 2-Way Mir N/Grp'd (M) RW 418275
\\.\PHYSICALDRIVE19 0042 08A:1 02A:C1 2-Way Mir N/Grp'd VCM WD 3
\\.\PHYSICALDRIVE20 0043 08A:1 15C:D1 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE21 0044 08A:1 02B:D1 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE22 0045 08A:1 15D:C1 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE23 0046 08A:1 15A:D1 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE24 0047 08A:1 02C:C1 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE25 0048 08A:1 01B:D0 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE26 0049 08A:1 16D:C0 2-Way Mir N/Grp'd RW 3
\\.\PHYSICALDRIVE27 004A 08A:1 01A:C0 2-Way Mir N/Grp'd RW 3


F:\>

Message was edited by: Removed Symmetrix ID.
KCSCP
  • dynamox

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    Posted October 17th, 2008 09:00

    yeah, you can map/mask them to multiple hosts. If you are going to be doing a lot of symcli work from this box, also considering you have ECC agents doing its polling ..i don't think it will hurt to have that many.
  • dynamox

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    Posted October 17th, 2008 09:00

    you can use symgate command to define them as gatekeeps and then associate them with a device group. This way these gatekeepers will be the first devices used for any symcli calls.
  • xe2sdc

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    Posted October 23rd, 2008 22:00

    Brad do you have more questions on this topic ??
  • brad12341

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    Posted October 24th, 2008 08:00

    No, I'll mark as complete
  • xe2sdc

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    Posted October 24th, 2008 08:00

    Do you feel you received good answers ??
  • brad12341

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    Posted October 24th, 2008 08:00

    No, I'll mark as answered.
  • brad12341

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    Posted October 24th, 2008 08:00

    Yes, good answers.
  • xe2sdc

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    Posted November 5th, 2008 09:00

    gatekeepers are the channel used by symcli to "talk" to our storage... defining a gatekeeper and adding it to a DG will force symcli in using specified gatekeeper instead of a generic (pooled) one. In case the defined gatekeeper is unavailable (first device used) symcli will find a pooled GK to serve the request.
  • rgunda

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    Posted November 5th, 2008 09:00

    Dynamox,

    Can you please briefly explain more about symgate commands and when we add the to a device group...how will they be the first devices used for any symcli calls?
  • rgunda

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    Posted November 5th, 2008 09:00

    Thank you very much Steafano...