direct access on a Celerra NS700 - operating system

Did you buy one off Ebay or at a garage sale ?

No -  I want to sell one on a garage sale and want to be shure that all data are erased :-)

Well – in that case EMC offers certified data erasure service ☺

You can ssh into the control station and then use server_umount , nas_fs delete, nas_disk –unbind

If you know what you are doing

Its a combination of three compoments – control station, data movers and storage processors.

See white papers on support.emc.com

Control station is Linux based – you can ssh into it

Data movers and storage processors run their own closed OS – you configure them through commands on the control station

Commands for NAS functionality are NOT the Linux ones – they usually start with nas_ or server_

NS700 is end-of-support now for quite some time – so the manuals may no longer published.

You would need to see what you can do with manuals from newer products on support.emc.com

If you are experienced start with the command reference guide

https://support.emc.com/docu33087_Celerra_Network_Server_Command_Reference_Manual_6.0.60.pdf?language=en_US

Dear Rainer,

thanks, I already have the celerra command reference 5.6.46 here, i will examine these commands you advise me and then i will be able to purge the data,

Do i have the usual linux commands also on the Control station, e.g. dd

thanks

Yes but the CS does not have block-level access to the file systems – only NFS mounted

Plus it isn’t a fast NFS client

So is actually the NFS-Server the data mover or the storage processor?

Are the data really overwritten with nas_disk -delete –unbind a or does it just delete the volume configuration?

is the command navicli on a celerra available?

Yes the data mover is the NFS server and owns the file systems and volume manager

No nas_disk delete is not zero’ing the drives

/nas/sbin/navicli