Originally posted by: SystemAdmin

Hi,

I had GPFS on Raid5 earlier and we moved to Raid0. I am trying to use one of the luns for this. However I am getting error 6027-1661 with mmcrvsd.

root@bull/home/manojcat disk_desc_hdisk2
hdisk2:bull.gp.cv.commvault.com:gem.gp.cv.commvault.com:dataAndMetadata::::

root@bull/home/manojmmcrnsd -F disk_desc_hdisk2
mmcrnsd: Processing disk hdisk2
mmcrnsd: 6027-1661 Failed while processing disk descriptor hdisk2:bull.gp.cv.commvault.com:gem.gp.cv.commvault.com:dataAndMetadata:::: on node bull.gp.cv.commvault.com.

However I was able to create CFS on some other luns from same raid0.

Any help in pointing where I am going wrong is appreciated.

Thanks,
Manoj
#AIX-Forum

Originally posted by: gcorneau

Since you didn't specify a GPFS version, I'll make a few comments based on the latest version:

1) If this is GPFS Version 3.2+, the format of the disk descriptor file has changed slightly:

hdisk2:bull.gp.cv.commvault.com,gem.gp.cv.commvault.com::dataAndMetadata::::

2) Also, does the disk LUN you're attempting to use show up as hdisk2 on the system bull.gp.cv.commvault.com ?
3) This LUN is not already in use by any other system? i.e. does it have a SCSI reserve on it?
4) Does the GPFS log (/var/adm/ras/mmfs.log.latest) show any more details?
5) Does the AIX error log show any pertinent FC/SAN/Disk errors?

Lastly, you may want to use the GPFS forum in the future for GPFS questions:
http://www-128.ibm.com/developerworks/forums/dw_forum.jsp?forum=479&cat=13

---

Glen Corneau
IBM Power Systems Advanced Technical Support
#AIX-Forum

Originally posted by: SystemAdmin

Thanks,

1) Yes hdisk2 is as shown in bull.
2) I am using 3.1.0.11.
3) Same disk descriptor format had worked for me, earlier and worked now too for a different lun.
4) mmfs.log.latest doesn't show anything pertaining to the execution/failure of "mmcrnsd" commmand.
5) AIX doesn't show any Disk or FC error either.

Regards,
Manoj
#AIX-Forum