We are still fighting issues with ISILON storage. Our current issue is with NFS timeouts for the storage a server is using. We see message like these in the server /var/log
Sep 4 13:21:49 earth kernel: nfs: server hhisilonnfs23.rams.adp.vcu.edu not responding, still trying Sep 4 13:21:49 earth kernel: nfs: server hhisilonnfs23.rams.adp.vcu.edu not responding, still trying Sep 4 13:21:49 earth kernel: nfs: server hhisilonnfs23.rams.adp.vcu.edu not responding, still trying Sep 4 13:21:49 earth kernel: nfs: server hhisilonnfs23.rams.adp.vcu.edu not responding, still trying Sep 4 13:22:14 earth kernel: nfs: server hhisilonnfs23.rams.adp.vcu.edu not responding, still trying Sep 4 13:22:15 earth kernel: nfs: server hhisilonnfs23.rams.adp.vcu.edu not responding, still trying Sep 4 13:22:16 earth kernel: nfs: server hhisilonnfs23.rams.adp.vcu.edu OK Sep 4 13:22:16 earth kernel: nfs: server hhisilonnfs23.rams.adp.vcu.edu OK Sep 4 13:22:16 earth kernel: nfs: server hhisilonnfs23.rams.adp.vcu.edu OK OS folks say the NFS mount is setup as IBM recommends in various documents. So they asked us to implement the nfstimeout option from this document ( https://www.ibm.com/support/knowledgecenter/en/SSGSG7_7.1.0/com.ibm.itsm.client.doc/r_opt_nfstimeout.html). Yes I realize it is primarily for a client backup of an NFS mount, but the statement: Supported Clients This option is for all UNIX and Linux clients. *The server can also define this option*. throws us - kind-of implying I can use this from the server perspective? But I can't find any documentation to support using it from the server. For you Linux guru's - this is what the mount says: hhisilonnfs23.rams.adp.vcu.edu:/ifs/NFS/TSM on /tsmnfs type nfs (rw,relatime,sync,vers=3,rsize=131072,wsize=524288,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.19.12,mountvers=3,mountport=300,mountproto=udp,local_lock=none,addr=192.168.19.12) Any thoughts? Suggestion? Are we simply expecting too much from NFS? My OS person also asks why ISP is so slow to write to NFS? When they did a test copy of a large file to the NFS mount, they were getting upwards of 8G/s vs 1.5-3G/s when TSM/ISP writes to it (via EMC monitoring tools). -- *Zoltan Forray* Spectrum Protect (p.k.a. TSM) Software & Hardware Administrator Xymon Monitor Administrator VMware Administrator Virginia Commonwealth University UCC/Office of Technology Services www.ucc.vcu.edu zfor...@vcu.edu - 804-828-4807 Don't be a phishing victim - VCU and other reputable organizations will never use email to request that you reply with your password, social security number or confidential personal information. For more details visit http://phishing.vcu.edu/
