safety backuo

[harddisk15]

Imaginary Scenario ---- Lim 1 is down and the hard disk is faulty. (no i/o commands are possible) In 'Alex'it states that you remove the faulty hard disk and replace it with the safety backup disk, having moved the strap to Sipos 3. Does this work - has anyone ever done it. On a recent training course I was told it was best to create a spare mirror image backup disk and store it off site.

 

[whosrdaddy]

we use this method for years now and it works like a charm!
having a second hdu is always handy but not mandatory.

http://www.damovo.com

 

[harddisk15]

Hi Whosrdaddy, please confirm - you replace the system HDU with the safety HDU (iodev=safety-hdu) - and you've used it to reload the system?
Cheers

 

[whosrdaddy]

yes i do
only one pitfall though : it works only with IPU, if you have an NIU as main IO card you must use an IPU in place...

http://www.damovo.com

 

[hughiepal]

Thanks whosrdaddy
cheers

 

[djudjuman]

I am not sure that it only works with IPU. I just did a test in our LAB with NIU (BC11SP12) and it works fine !!!

 

[lancbomb]

this is all ok provided your safety backup is uptodate

 

[whosrdaddy]

djudjuman, which firmware has your NIU?

http://www.damovo.com

 

[djudjuman]

Firmware on NIU is: CAA 158 0001

 

[mdfan]

djudjuman :
I think whosrdaddy meant revision ? R14A is the latest.

 

[whosrdaddy]

we did some testing with R14 and it seems to work fine now with opto shuttle (finally!)

anyway it is possible to start a system that has normally an NIU, with an IPU. it is tricky but it works!

http://www.damovo.com