PRIMECLUSTER Global Disk Services Configuration and AdministrationGuide 4.3

6.1.3 To Use Dell EMC Storage Units

After completing the configuration of devices that are described in "Devices that Cannot be Managed" in "3.3 Dell EMC Storage Units" and Dell EMC software, follow the procedure below and describe a list of devices excluded from disk management by GDS in the /etc/opt/FJSVsdx/lib/exdevtab file (referred to as the Excluded Device List). The Excluded Device List must include all disks that cannot be managed by GDS.

[Procedure]

1. The syminq command provided by SYMCLI is available for checking BCV, R2, GateKeeper, and CKD devices. Execute the syminq command, and describe all devices indicated as BCV, R2, GK, and CKD (sdX, emcpowerX) in the Excluded Device List.

2. The syminq command is unavailable for checking VCMDB devices. When using Dell EMC's SAN management software (Volume Logix, ESN Manager, SAN Manager and so on), ask your Dell EMC engineer or systems administrator who configured that SAN management software about the names of VCMDB devices and describe them in the Excluded Device List.

3. Describe all native devices (sdX) in the Excluded Device List.
   

   emcpower0 (Target)
   sdb (Nontarget)
   sdc (Nontarget)
   

4. In addition to the devices specified in steps 1. through to 3., describe any other devices to be excluded from GDS management in the Excluded Device List.

You are recommended to suffix such tags as "PP", "BCV", "R2", "GK", "CKD" and "VCMDB" to the device names for Excluded Device List management efficiency. A device name and a tag must be separated by one or more spaces.

The Excluded Device List should appear as follows.

# cat /etc/opt/FJSVsdx/lib/exdevtab
/dev/emcpowerc BCV
/dev/emcpowerd BCV
/dev/emcpowere GK
/dev/emcpowerf GK
/dev/emcpowerg CKD
/dev/emcpowerh R2
/dev/sdb PP
/dev/sdc PP
...
/dev/sdp PP
/dev/sdq PP
#

Information

exdevtab.sh

The script sample "/etc/opt/FJSVsdx/bin/exdevtab.sh" for simply creating the Excluded Device List "/etc/opt/FJSVsdx/lib/exdevtab" is provided.

To use the script, open it with an editor and modify the following parameter (syminq command path) according to the execution environment.

SYMINQ=/usr/symcli/bin/syminq

By executing exdevtab.sh, all BCV, GateKeeper, and CKD devices are included in the Excluded Device List. The native devices of emcpower devices, R2 devices, and VCMDB devices will not be included in the list. If necessary, edit exdevtab.sh in advance or add any other disks to be excluded from GDS management to the list using the above steps 1. through to 4.

Note

Using Dell EMC TimeFinder or Dell EMC SRDF in a Proxy Configuration

For using Dell EMC TimeFinder or Dell EMC SRDF in a proxy configuration, do not describe BCV and R2 devices connected with proxy groups in the Excluded Device List, but describe the native devices that compose those devices in the list. For details, see "3.19 Using Dell EMC TimeFinder or Dell EMC SRDF in Proxy Configuration."