First install symcli

List storage ID

symcfg list

Backup / export symcli config

symdg -sid 1234 exportall -f mydgfile.txt

Restore symcli config

symdg -sid 1234 importall -f mydgfile.txt

Location of symcli logs, config and DB

• /var/symapi

List DG

symdg list

List detail of single DG

symdg show DGNAME

Export a single Disk Group, replace by import to restore

symdg -sid 1234 export DGNAME -f myfile.txt

Delete a DG

symdg delete DGNAME [-force]

List disks from a DG

symdg show DGNAME  | egrep "DEV0|TGT0"

Powermt

Remove paths and dead disks

powermt check [force]

List all paths

powermt display dev=all

Check state of disk (error: unable to open device), check if disk in RW, else not accessible

symcfg discover
symcfg list
sympd list | grep 011E

List Powerpath license:

emcpreg -list
emcpreg -add xxx-yyy-vvvv-hhhh

Showing mode as unlicensed

[root@mynode1 ~]# powermt display dev=all
Pseudo name=emcpowera
CLARiiON ID=**************** [my_mynode1]
Logical device ID=600601601C22280016002FBEE3C1E111 [LUN 207]
state=alive; policy=BasicFailover; priority=0; queued-IOs=0;
Owner: default=SP B, current=SP B Array failover mode: 4
==============================================================================
————— Host ————— – Stor – — I/O Path — — Stats —
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
==============================================================================
4 qla2xxx sdb SP A1 unlic alive 0 0
4 qla2xxx sdc SP B0 unlic alive 0 0
3 qla2xxx sdd SP A0 active alive 0 0
3 qla2xxx sde SP B1 active alive 0 0

Issued below command to check the registration status and found that it is in expired status. Before reboot it was working fine only after reboot we encounter the issue.

[root@mynode1 ~]# powermt check_registration
Key ****-****-****-****-****-****
Product: PowerPath
Capabilities: All
Expired: Oct, 2012

We registered the new key to get rid of the error.

[root@mynode1 ~]# emcpreg -install

=========== EMC PowerPath Registration ===========

Do you have a new registration key or keys to enter?[n] y
Enter the registration keys(s) for your product(s),
one per line, pressing Enter after each key.
After typing all keys, press Enter again.

Key (Enter if done): ****-****-****-****-****-****
1 key(s) successfully added.
Key successfully installed.

Key (Enter if done):
1 key(s) successfully registered.

After the successful registration we were able to see the new key along with old one in below command output.

[root@mynode1 ~]# powermt check_registration

Key ****-****-****-****-****-****
Product: PowerPath
Capabilities: All
Expired: Oct, 2012

Key ****-****-****-****-****-****
Product: PowerPath
Capabilities: All

We removed the old key from the previous output.