HP 3PAR X9000 File Serving Software (IBRIX) Implementation Guide (QL226-96987, June 2013)

• The following command shows that dm-3 is sdb and that sdn exported as LUN 1 on host FC
adapters host0 and host1:
# multipath -ll
mpath1 (350002ac0014400f4) dm-3 3PARdata,VV
[size=100G][features=1 queue_if_no_path][hwhandler=0][rw]
\_ round-robin 0 [prio=2][active]
\_ 0:0:0:1 sdb 8:16 [active][ready]
\_ 1:0:0:1 sdn 8:208 [active][ready]
• The following output shows the disk size:
# lvmdiskscan
../dev/dm-3 [ 100.00 GB] LVM physical volume
The following command shows the volume WWID:
# /sbin/scsi_id -g -p 0x83 -s /block/sdb
350002ac0014400f4
Using 3PAR CLI command
cli% showvlun -lvw
...
Lun VVName -----VV_WWN----- HostName -Host_WWN/iSCSI_Name- Port Type
1 ibrixvol.1 50002AC0014400F4 sqa-dl360g6-02 ---------------- --- host
The LUN identifier is 3<VV wwn> and the value 3 should be removed to get the VV WWN
This shows that ilv1 is mapped to 3PAR Volume ibrixvol.1 which is exported as LUN 1.
Refer to the StoreAll Storage File System User Guide for creation of file system segments on storage
volumes and export the filesystem as NFS or SMB. Use the ibrix_fs and ibrix_mountpoint
commands on the management console to determine the state of the file system and mount points.
For more information about these commands, see the HP StoreAll Storage CLI Reference Guide,
which is available on the following HP website:
http://www.hp.com/support/StoreAllManuals
Rebalancing Segments in a File System
A file system must be mounted when you rebalance its segments. Segments can be rebalanced
using either the StoreAll OS GUI or CLI. This section describes general steps and commands that
are required to rebalance segments in a file system through the StoreAll OS CLI.
1. To rebalance the segments in a file system, first create a mounted file system using the LUNs
that are exported from the HP 3PAR StoreServ Storage. See “Mounting a File System” (page
28).
2. Using the following command, set the allocation policy to STICKY for one of the segments in
the file system so that the new files created will move to the sticky segment:
# ibrix_fs_tune -f FSNAME {-h HOSTLIST |-g GROUPLIST} -p POLICY [-S STARTS EGNUM]
[ - R]
HP StoreAll OS Software Usage 33