Hitachi Dynamic Link Manager Software Users Guide for Linux

Displaying Corresponding Information About an HDLM Device, SCSI
Device, and LDEV
This subsection explains how to display corresponding information about an
HDLM device, SCSI device, and LDEV by using an HDLM command.
You can display corresponding information about an HDLM device, SCSI
device, and LDEV by executing the dlnkmgr command's view operation with
the -drv parameter specified. For details on the view operation, see
view
(Displays Information) on page 6-31. The execution result of this operation
is displayed on a single line for each path.
The following is an example of executing the dlnkmgr command's view
operation:
# /opt/DynamicLinkManager/bin/dlnkmgr view -drv
PathID HDevName Device LDEV
000000 sddlmaa /dev/sdag 9970/9980.15001.05B7
000001 sddlmaa /dev/sdq 9970/9980.15001.05B7
000002 sddlmab /dev/sdr 9970/9980.15001.05B0
000003 sddlmac /dev/sds 9970/9980.15001.05B1
000004 sddlmad /dev/sdt [phone]B2
000005 sddlmae /dev/sdu 9970/9980.15001.05B3
000006 sddlmaf /dev/sdv 9970/9980.15001.05B4
000007 sddlmag /dev/sdw 9970/9980.15001.05B5
:
000028 sddlmae /dev/sdm 9970/9980.15001.05B3
000029 sddlmaf /dev/sdn 9970/9980.15001.05B4
000030 sddlmag /dev/sdo 9970/9980.15001.05B5
000031 sddlmah /dev/sdp 9970/9980.15001.05B6
KAPL01001-I The HDLM command completed normally. Operation name =
view, completion time = yyyy/mm/dd hh:mm:ss
#
For details on the displayed items and their descriptions, see
view (Displays
Information) on page 6-31.
Initializing Statistical Information for Paths
This section explains how to initialize statistical information (I/O counts and
I/O errors) for all the paths managed by HDLM.
This procedure is useful when you want to check the number of I/O
operations and I/O errors that have occurred since the last time the I/O
counts and I/O errors were initialized to 0.
To initialize statistical information for paths:
1. Check the current status of the path.
The following is an example of executing the command:
# /opt/DynamicLinkManager/bin/dlnkmgr view -path
4-38
HDLM Operation
Hitachi Dynamic Link Manager (for Linux®) User Guide