Hello Managers, Thanks very much for your rapid response. I got replay from Graeme and Martin. Thanks a lot. I appreciate your time and help. To summarize!! Problem Reported: I am trying to migrate the two node SUN cluster shared storage from one EMC box to another EMC ( New DMX) box. I prefer to add new DMX disks to the existing shared storage disk group and do the veritas level mirroring volume by volume. Once the mirroring is completed 100% I will break the mirror and cut over to new EMC disks. Here I am worried with the Quorum disk existing in the old EMC disk group. Please advice me how should I move the quorum disk from old EMC disk to new EMC disks without corrupting cluster configurations Solution Advised by Sun Managers Marin and Graeme ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- ------------------------------------------------------- The quorum device doesn't have data on it, it just needs to exist, so you don't have to do the same mirror/unmirror process as you do with file system devices. You have two options: 1. Add a new quorum device from the new array and then delete the one from the old array. 2. Delete the old, add the new. Either way you will only have problems if you suffer a failure some time between the two steps of both options. You add and remove quorum devices with the scconf -a -q globaldev={newdevice} or scconf -r -q globaldev={olddevice} commands (assuming SC 3.1). Not sure what the SC 3.2 commands are. Cheers, Graeme. ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- ---------------------------------------------------- I've done such a job from HDS to HDS last month, just add a new quorum from the new storage and remove the old one... SC 3.1 -> scsetup -> quorum -> add/del SC 3.2 -> clsetup -> quorum -> add/del SC 3.1 -> scconf -a -q globaldev=d<nr>, scconf -r -q globaldev=d<nr> SC 3.2 -> clquorum add d<nr>, clquorum remove d<nr> regards - martin Thanks and Regards Arun Arunachalam Jayaraman, Technical Services Professional - ITD ? Global Delivery, India IBM Certified Advanced Technical Expert, Sun Certified System Administrator & Network Administrator +: Block D(EGD-3C-355), Embassy Golf Links, Inner Ring Road, Bangalore - 560071. India. ): T: +91-80-41775627, (M): 91-9880866774, :: arjayara@in.ibm.com ----- Forwarded by Arunachalam Jayaraman/India/IBM on 21/08/2007 16:07 ----- Graeme Elsworthy <graeme@unixsm.com.au> 21/08/2007 15:20 To Arunachalam Jayaraman/India/IBM@IBMIN cc Subject Re: Sun Cluster Problem Hi Arun, The quorum device doesn't have data on it, it just needs to exist, so you don't have to do the same mirror/unmirror process as you do with file system devices. You have two options: 1. Add a new quorum device from the new array and then delete the one from the old array. 2. Delete the old, add the new. Either way you will only have problems if you suffer a failure some time between the two steps of both options. You add and remove quorum devices with the scconf -a -q globaldev={newdevice} or scconf -r -q globaldev={olddevice} commands (assuming SC 3.1). Not sure what the SC 3.2 commands are. Cheers, Graeme. Arunachalam Jayaraman wrote: Dear Managers, I am trying to migrate the two node SUN cluster shared storage from one EMC box to another EMC ( New DMX) box. I prefer to add new DMX disks to the existing shared storage disk group and do the veritas level mirroring volume by volume. Once the mirroring is completed 100% I will break the mirror and cut over to new EMC disks. Here I am worried with the Quorum disk existing in the old EMC disk group. Please advice me how should I move the quorum disk from old EMC disk to new EMC disks without corrupting cluster configurations Command Output of scstat -pv ------------------------------------------------------------------ -- Quorum Summary -- Quorum votes possible: 3 Quorum votes needed: 2 Quorum votes present: 3 -- Quorum Votes by Node -- Node Name Present Possible Status --------- ------- -------- ------ Node votes: Node-A 1 1 Online Node votes: Node-B 1 1 Online -- Quorum Votes by Device -- Device Name Present Possible Status ----------- ------- -------- ------ Device votes: /dev/did/rdsk/d17s2 1 1 Online ------------------------------------------------------------------ Thanks and Regards Arun Arunachalam Jayaraman, Technical Services Professional - ITD ? Global Delivery, India IBM Certified Advanced Technical Expert, Sun Certified System Administrator & Network Administrator +: Block D(EGD-3C-355), Embassy Golf Links, Inner Ring Road, Bangalore - 560071. India. ): T: +91-80-41775627, (M): 91-9880866774, :: arjayara@in.ibm.com [demime 1.01b removed an attachment of type image/gif] _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers [demime 1.01b removed an attachment of type application/octet-stream which had a name of signature.asc] _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Tue Aug 21 06:45:43 2007
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