cant see new EMC disks

[Jim Smith]

Hi,

ive just had added lots of new EMC disks to my system but when I do an ioscan I simply cant see them. Anyone know what I can do to prompt them to appear ??

[Stefan Farrelly]

You need to do the EMC equivalent of ioscan, its called symcfg and you need to add the discover option, then do an ioscan;

symcfg discover; ioscan -fnCdisk

[Jim Smith]

Thanks Stefan, but it says command not found. Any idea where the symcfg command is ??

[Stefan Farrelly]

It should be in a directory;

/opt/emc/SYMCLI//bin

eg. /opt/emc/SYMCLI/V4.0/bin

Run it from there with ./ or add this dir to your PATH.

[Jim Smith]

Thanks Stefan, can see the disks now! great. But the ioscan shows no device files for them, how to add them in ?

[Stefan Farrelly]

Use the insf command to add in the device files. Eg. if the new EMC disks are on path 8/0 then do;

/usr/sbin/insf -eH 8/0

Now ioscan -fknH 8/0 will show the device files and you can pvcreate -f them and add them into a VG.

[Jim Smith]

Thanks for all your help Stefan!

One more question; which version of the EMC software should I be running ? whats the latest or the version you are running and do I really need to update it ? Were running 4.0

[Stefan Farrelly]

Hi Jim,

were using SYMCLI version 4.3 on some of our new servers, had to upgrade from 4.0 recently as the new EMC frames would work with the old 4.0 version! So yes, you should upgrade your EMC software when you get time and keep uptodate.

[Stefan Farrelly · Accepted solution]

oops, in my last post where it says ....would work....it should say;
wouldnt work with the old 4.0 version. sorry.

[Philip Kernohan]

Jim,

I think Stefan has cleared this one up for you but I wanted to state and ask Stefan in the process that I believe it is legitimate to run a 'insf -e' after installing the EMC disks.

In fact, I believe we usually run 'ioscan -funC disk', 'insf -e' and then the same ioscan command again to show the disks.

A quick 'll -tr /dev/dsk' will show what is new - remember any dual paths and count up what you should have.

The commands for the symcli (command line interface) are very useful but can also manipulate the devices in the array so be careful. I think(?) that 'symcli -h' gives the usage and a brief description of all of the symcli commands. You will need to run the symcfg with the discover option to update/see the device information.

As I said, looks like Stefan has answered your questions and I will bow out graciously with a low score (0) if that is okay.

Live life,
Regards,
PK