This section describes how to set up an exclusive device list (disk devices that should be excluded from automatic resource registration) when the EMC Symmetrix series of RAID devices (Symmetrix) is used in a SPARC Enterprise M-series/PRIMECLUSTER environment (refer to "3.4.1 Setup exclusive device list").
You must exclude the following EMC Symmetrix devices from automatic resource registration:
BCV (Business Continuance Volume) devices
R2 (SRDF target) devices
GateKeeper devices
CKD (Count Key Data) devices
VCMDB (Volume Configuration Management Data Base) devices used by EMC SAN management software (Volume Logix, ESN Manager, SAN Manager)
Add these devices in an exclusive device list after completing the settings for BCV, GateKeeper and EMC PowerPath. Then, you can perform automatic resource registration.
You can set emcpower devices or native devices that compose emcpower devices as the targets of automatic resource registration.
You can set emcpower devices or native devices that compose emcpower devices as the targets of automatic resource registration. When you use native devices, there is the benefit of not having to reexecute automatic resource registration when you change a storage device to a higher model. However, for systems in which emcpower devices are already set as the targets of automatic resource registration, continue to use the emcpower devices.
When setting native devices as the targets of automatic resource registration, specify all emcpower devices (emcpower<N>) and the native devices to be excluded from registration (c<C>t<T>d<D>) in the exclusive device list.
When setting emcpower devices as the targets of automatic resource registration, do not specify either emcpower devices (emcpower<N>) or native devices (c<C>t<T>d<D>) in the exception device list.
Where <C> is the controller number, <T> is the target ID, <D> is the disk number, and <N> is the emcpower device number.
You can differentiate which disk is BCV, R2, GateKeeper, or CKD by executing the syminq command provided in SYMCLI. Execute the syminq command, and describe all the devices (c<C>t<T>d<D>, emcpower<N>), indicated as BCV, R2, GK, or CKD in the excluded device list. Where <C> is the controller number, <T> is the target ID, <D> is the disk number, and <N> is the emcpower device number.
VCMDB is not output by executing syminq. If you use EMS SAN management software such as Volume Logix, ESN Manager or SAN Manager, check the VCMDB device name with EMC customer support engineers or a system administrator who set up the management software before adding the VCMDB to an exclusive device list.
PRIMECLUSTER provides the following sample scripts for simplified setup of an exclusive device list: l/etc/opt/FJSVcluster/sys/clmakediskinfo.sample l/etc/opt/FJSVcluster/sys/clmkdiskinfo.sample
To set native devices as targets of automatic resource registration, use clmakediskinfo. Executing the command shown below creates an exclusive device list that contains emcpower devices, native devices to be excluded from automatic resource registration, as well as the BCV, R2, GateKeeper, and CKD devices.
# cp /etc/opt/FJSVcluster/sys/clmakediskinfo.sample /mydir/clmakediskinfo # chmod u+x /mydir/clmakediskinfo
# /mydir/clmakediskinfo -M > /etc/opt/FJSVcluster/etc/diskinfo <RETURN>
To use this script, use the vi command and modify the following two parameters (syminq and powermt command paths) in the script so that they match the execution environment.
SYMINQ=/usr/symcli/bin/syminq
POWERMT=/etc/powermt
To set emcpower devices as targets of automatic resource registration, use clmkdiskinfo. Executing the command shown below creates an exclusive device list that includes the BCV and GateKeeper devices.
# cp /etc/opt/FJSVcluster/sys/clmkdiskinfo.sample
/mydir/clmkdiskinfo
# syminq | nawk -f /mydir/clmkdiskinfo > /etc/opt/FJSVcluster/etc/diskinfo <RETURN>
If there are other devices to be included in the exclusive device list besides those listed automatically by the executed script, use the vi command and add those devices to the list.
If you do not know the path of the syminq command, check the SYMCLI installation settings. Normally the path is /usr/symcli/bin/syminq.
If you do not know the path of the powermt command, check the PowerPath installation settings. Normally the path is /etc/powermt.
Note
PowerPath is required to use EMC Symmetrix.
Set the BCV and R2 devices to be used in the GDS Snapshot proxy configuration as targets of automatic device registration.
When setting the native devices that configure the BCV and R2 devices as targets of automatic resource registration, specify the emcpower devices (emcpower<N>) and the native devices (c<C>t<T>d<D>) to be excluded from registration in the exclusive device list.
When setting the BCV and R2 devices themselves as targets of automatic resource registration, do not include the BCV and R2 devices (emcpower<N>) or the native devices (c<C>t<T>d<D>) in the exclusive device list.
For details of GDS Snapshot, see "PRIMECLUSTER Global Disk Service Configuration and Administration Guide."
If BCV is not added to an exclusive device list, you need to cancel or split the BCV pair before working on automatic resource registration.
If the R2 device of the SRDF pair is not added to an exclusive device list, split the SRDF pair before working on automatic resource registration.
