Dell PowerEdge SDS 100 Improving NFS performance on HPC clusters with Dell Flu - Page 31

Improving NFS Performance on HPC Clusters with Dell Fluid Cache for DAS Partitions Hot Spare Policy violated Encrypted Layout Size Associated Fluid Cache State Device Name Bus Protocol Media Read Policy Write Policy Cache Policy Stripe Element Size Disk Cache Policy : Available : Not Applicable : No : RAID-0 : 557.75 GB (598879502336 bytes) : Not enabled : /dev/sdb : SAS : HDD : Adaptive Read Ahead : Write Back : Not Applicable : 64 KB : Disabled Now create a swap space on the RAID 0. # mkswap -L SWAP /dev/sdb Turn on swap. # swapon -p 10 /dev/sdb Edit /etc/fstab and add an entry for this swap device. "LABEL=SWAP swap swap pri=10 0 0" Make sure the entry is listed before the default swap space the OS install created. Test that swap can be enabled automatically when the server boots. # swapoff -a # swapon -s # swapon -a # swapon -s 5. Configure an ib0 IP-address on the InfiniBand interface. This is the IP the I/O clients will use to mount the NFS share. It should be on the same subnet as the I/O clients. Reboot the server for all these changes to take effect. A.4. Virtual disk configuration Create a virtual disk on the PowerVault MD1200s. This disk will be used as the NFS storage. All the commands in this section are executed on the PowerEdge R720 NFS server. 1. Note the controller ID of the PERC H810 adapter. From the output below, the controller ID is 1. [root@nfs-dfc]# omreport storage controller List of Controllers in the system ID : 1 31