topic Re: problem by put new disc on eva 4400 in Disk Enclosures

problem by put new disc on eva 4400

daedro — Thu, 08 Mar 2012 05:56:02 GMT

Hi,

I put new disk of 600gb 10k on existing diskgroup with disc of 400gb 10k, and the issue that appear me is when i click in the part where say the different sizes using different raid,( for example raid 0 1234gb raid 1 244gb raid 5 1832gb,) and something curious happend, after putting 8 new disc of 600gb 10k in this diskgroup appear me the same capacity with all raids.

i dont know if i explain well, but somebody knows why happened this, and how can i fix it

thanks a lot

Re: problem by put new disc on eva 4400

Torsten. — Thu, 08 Mar 2012 06:53:14 GMT

A protection level of single reserves the space of 2 of the larges disks per disk group, protection level doubles reserves the space of 4 times the largest disk.

If you have let's say 500GB disks and double protection, you have a reserved space of 4x 500GB. If you add now a single 1 TB disk, the reserved space will increase to 4x 1TB, so you will have less space available than before.

I hope this answers your question.

Re: problem by put new disc on eva 4400

daedro — Thu, 08 Mar 2012 07:16:26 GMT

Thank you Torsten, I know this behavior with the type of protection
The thing is when i see the capacity that is available on different level of raid i see the same capacity for all levels of raid, you know what i mean, althougth i have put disks of 600 gb, it have to appear different space available for different levels of raid

Re: problem by put new disc on eva 4400

Torsten. — Thu, 08 Mar 2012 07:25:07 GMT

This sometimes happens, the controller need a re-sync. Consider to reboot the controllers one by one first. If this does not help, there is also a special procedure for a controller resync.

Re: problem by put new disc on eva 4400

daedro — Thu, 08 Mar 2012 07:29:30 GMT

Ok thanks a lot i will try to do it, where can i find this special procedure for a controller re-sync in the command view user guide?

Re: problem by put new disc on eva 4400

Torsten. — Thu, 08 Mar 2012 07:35:42 GMT

see

http://h30499.www3.hp.com/t5/Storage-Area-Networks-SAN/eva6100-controller-resync/td-p/5326779

Re: problem by put new disc on eva 4400

daedro — Thu, 08 Mar 2012 12:59:40 GMT

In my case is a 4400, is the same procedure isnt?

Re: problem by put new disc on eva 4400

Torsten. — Thu, 08 Mar 2012 13:20:50 GMT

Another related post:

http://jimpeluso.wordpress.com/2011/01/25/eva-6000-reporting-issue/

procedure is the same for all the EVAs.

Re: problem by put new disc on eva 4400

daedro — Mon, 12 Mar 2012 14:26:32 GMT

hi torsten,

In case that the EVA is not with hp support, there is some document that explain how to do the procedure, the thing that I read is not clear, you know if there is some document that explain well how to do it.

thank you in advance for the help.

Re: problem by put new disc on eva 4400

Torsten. — Mon, 12 Mar 2012 16:15:54 GMT

Try to reboot the master controller first.

Re: problem by put new disc on eva 4400

daedro — Tue, 13 Mar 2012 09:27:09 GMT

Hi Torsten,

Im looking in the command view and I dont see which is the master controller, there is something to identify it.

And in case that it doesnt work this, you know some document that explain how to do the procedure of re-sync.

thank you

Re: problem by put new disc on eva 4400

Torsten. — Tue, 13 Mar 2012 11:09:43 GMT

Usually it is alway controller A. If you click on view events, you see the reporting controller of a message, if you click on "more" you see if this reporting controller is the primary.

Just reboot controller A and check if the status has changed.