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gpfs:gpfs_ces [2021/10/20 10:16]
manu
gpfs:gpfs_ces [2025/04/28 12:07] (current)
manu [enable SMB / NFS]
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 </​cli>​ </​cli>​
  
 +=== CES address failover and distribution policies ===
  
 +Add IP address for cluster NFS and CIFS
 +<cli prompt='#'>​
 +# mmces address policy [even-coverage | balanced-load | node-affinity | none]
 +</​cli>​
 +
 +  * **even-coverage**
 +  Distributes the addresses among the available nodes. The even-coverage policy is the default address distribution policy. ​
 +  * **balanced-load**
 +  Distributes the addresses to approach an optimized load distribution. The load (network and CPU) on all the nodes are monitored. Addresses are moved based on given policies for optimized load throughout the cluster.
 +  * **node-affinity**
 +  Attempts to keep an address on the node to which the user manually assigned it. If the mmces address add command is used with the --node option, the address is marked as being associated with that node. Similarly, if an address is moved with the mmces address move command, the address is marked as being associated with the destination node. Any automatic movement, such as reassigning a down node's addresses, does not change this association. Addresses that are enabled with no node specification do not have a node association.
 +
 +  Addresses that are associated with a node but assigned to a different node are moved back to the associated node if possible.
 +
 +Force the balance
 +<cli prompt='#'>​
 +# mmces address move --rebalance
 +</​cli>​
 +
 +Or
 +
 +<cli prompt='#'>​
 +# mmces address move --ces-ip {IP[,​IP...]} --ces-node Node
 +</​cli>​
 +
 +<cli prompt='#'>​
 +# mmces address list --full-list
 +cesAddress ​   cesNode ​                 attributes ​                                  ​cesGroup ​    ​cesPrefix ​  ​preferredNode ​           unhostableNodes
 +------------- ------------------------ -------------------------------------------- ------------ ----------- ------------------------ -----------------
 +172.128.1.171 ​  ​gpfsa01.mydom.lu ​  ​object_database_node,​object_singleton_node ​  ​nfsgroup01 ​  ​none ​       gpfsa01.mydom.lu ​  none
 +172.128.1.172 ​  ​gpfsb01.mydom.lu ​  ​none ​                                        ​nfsgroup01 ​  ​none ​       gpfsb01.mydom.lu ​  none
 +
 +</​cli>​
 +
 +https://​www.ibm.com/​docs/​en/​storage-scale/​5.1.8?​topic=reference-mmces-command
 ==== configure authentification ==== ==== configure authentification ====
  
 +Here only local authentification,​ so users creation must be done on all cluster nodes. Support also LDAP, AD,...
 <cli prompt='#'>​ <cli prompt='#'>​
 [root@gpfs01 ~]# mmuserauth service list [root@gpfs01 ~]# mmuserauth service list
Line 501: Line 538:
 10.10.10.12 10.10.10.12
 </​cli>​ </​cli>​
 +
 +===== Debug protocols =====
 +
 +<cli prompt='#'>​
 +[root@prscale-a-01 ~]# gpfs.snap --protocol authentication
 +gpfs.snap: started at Wed Dec  1 15:18:06 CET 2021.
 +Gathering common data...
 +Gathering Linux specific data...
 +Gathering extended network data...
 +Gathering local callhome data...
 +Gathering local perfmon data...
 +Gathering local msgqueue data...
 +Gathering local auth data...
 +Gathering local sysmon data...
 +Gathering local cnss data...
 +Gathering local gui data...
 +Gathering trace reports and internal dumps...
 +Gathering Transparent Cloud Tiering data at level BASIC...
 +The Transparent Cloud Tiering snap data collection completed for node prscale-a-01
 +Gathering QoS data at level FULL...
 +gpfs.snap: ​ No QoS configuration was found for this cluster.
 +gpfs.snap: ​ QoS configuration collection complete.
 +Gathering cluster wide gui data...
 +Gathering cluster wide sysmon data...
 +Gathering cluster wide cnss data...
 +Gathering cluster wide callhome data...
 +Gathering cluster wide perfmon data...
 +Gathering cluster wide msgqueue data...
 +gpfs.snap: ​ Spawning remote gpfs.snap calls. Master is prscale-a-01.
 +...
 +gpfs.snap completed at Wed Dec  1 15:21:33 CET 2021
 +###############################################################################​
 +Send file /​tmp/​gpfs.snapOut/​3243658/​all.20211201151806.3243658.tar to IBM Service
 +Examine previous messages to determine additional required data.
 +###############################################################################​
 +
 +</​cli>​
 +
 +==== NFS tuning ====
 +
 +https://​www.ibm.com/​docs/​en/​spectrum-scale/​5.1.5?​topic=dr-tuning-nfs-server-homesecondary-cluster-nfs-server
gpfs/gpfs_ces.1634717802.txt.gz · Last modified: 2021/10/20 10:16 by manu