[Info-vax] From ODS-2 to ODS-5

[Arne Vajhøj]

On 8/20/2020 5:17 PM, abrsvc wrote:
> On Thursday, 20 August 2020 17:08:03 UTC-4, Jan-Erik Söderholm  wrote:
>> Den 2020-08-20 kl. 22:55, skrev abrsvc:
>>> On Thursday, 20 August 2020 16:52:27 UTC-4, Arne Vajhøj  wrote:
>>>> $ SET VOL/STRUCT=5 DKxn
>>>>
>>>> supposedly should do it, but would it be "better" to backup data,
>>>> init disk and restore data?
>>>
>>> If it were me, I would backup the data, create a new disk of ODS5 and "restore" to that new disk using NOINITIALIZE (if an image backup).
>>
>> Right, but the question is *why* is that better?
>> What is the issue with a direct convert of a disk volyme?
> 
> In theory nothing.  Practically (most times) nothing.  But...  I'd rather be on the safe side and have a backup.

I was not so concerned about safety.

I was more concerned about the various sizes. Will they be the same
or will SET VOL inherit old sizes from 2 while INIT will use new
sizes for 5?

Arne