PERC 5/i Raid Configuration Utility

– CTRL + R in BIOS to launch RAID config utility
– Arrow keys to navigate, -> to open submenu
– CTRL + N for next page
– See Dellâ„¢ PowerEdgeâ„¢ RAID Controller 5/i User’s Guide for details

PowerEdge 2950 with 5 physical drives (including one hot spare):
1) Create Virtual Disk made of 4 of the 5 physical disks
2) Set remaining disk as dedicated hotspare
3) Initialize (will destroy all existing data)

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nfs problems on CentOS5

Had a hard time getting nfs working between two CentOS 5 boxes, kept seeing the client hang when attempting to mount the share. Disabled SELinux, and then ran into a mount.nfs: Stale NFS file handle error. Had to force a umount (umount -f /mnt/share).

Next issue was a time out similar to this:
mount.nfs: mount to NFS server ‘192.196.1.3’ failed: timed out, retrying
mount.nfs: mount to NFS server ‘192.196.1.3’ failed: timed out, retrying
mount.nfs: mount to NFS server ‘192.196.1.3’ failed: timed out, retrying
mount.nfs: mount to NFS server ‘192.196.1.3’ failed: timed out, give up.

Stopped iptables and the NFS share started working great. Ok. My iptables is almost identical to another CentOS box that has NFS working fine. Weird. Turns out that NFS ports change, and have to be set statically in /etc/sysconfig/nfs to allow through iptables. I uncommented the following lines:

STATD_PORT=
STATD_OUTGOING_PORT=
MOUNTD_PORT=

And set the desired ports, then added those ports to iptables. Then:

service nfs restart
service iptables restart

And mounts with no problem.

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