Re: [HPDD-discuss] root squash problem

From the Ops Manual (and hence not from direct experience), setting the nosquash_nids on the MGS will affect all MDTs -- it is a global setting when applied using conf_param on the MGS. In which case, the command will return an error when you specify an individual MDT using conf_param on the MGS.

-----Original Message----- From: hpdd-discuss-bounces(a)lists.01.org [mailto:hpdd-discuss- bounces(a)lists.01.org] On Behalf Of Bob Ball Sent: Saturday, July 20, 2013 12:35 AM To: hpdd-discuss(a)lists.01.org; Lustre discussion Subject: [HPDD-discuss] root squash problem We have just installed Lustre 2.1.6 on SL6.4 systems. It is working well. However, I find that I am unable to apply root squash parameters. We have separate mgs and mdt machines. Under Lustre 1.8.4 this was not an issue for root squash commands applied on the mdt. However, when I modify the command syntax for lctl conf_param to what I think should now be appropriate, I run into difficulty. [root@lmd02 tools]# lctl conf_param mdt.umt3-MDT0000.nosquash_nids="10.10.2.33@tcp" No device found for name MGS: Invalid argument This command must be run on the MGS. error: conf_param: No such device [root@mgs ~]# lctl conf_param mdt.umt3-MDT0000.nosquash_nids="10.10.2.33@tcp" error: conf_param: Invalid argument I have not yet looked at setting the "root_squash" value, as this problem has stopped me cold. So, two questions: 1. Is this even possible with our split mgs/mdt machines? 2. If possible, what have I done wrong above? Thanks, bob _______________________________________________ HPDD-discuss mailing list HPDD-discuss(a)lists.01.org https://lists.01.org/mailman/listinfo/hpdd-discuss