Re: Image Catalog over NFS

["Larry \"DrFranken\" Bolhuis" <midrange@xxxxxxxxxxxx>]

Interesting but I wonder in a DR how long this would take?

It looks like you end up doing two different recoveries, 1) Build and 
populate the TEMPORARY system and then 2) Recover from that.  Just 
retrieving the data from a remote cloud service would seem to me to be a 
very time consuming process. You have in your diagram Magaport which 
could certainly be a fast (albeit expensive) connection to be sure but 
even then getting the thing back is going to depend on size of your 
system rather heavily.

Also while I noted you did the backup to a Linux NFS server you point 
out that you can only do the recovery from an IBM i hosting server or 
partition. The key bit there is that NFSSHARE(*YES) parameter on the 
VFYIMGCLG which builds out the BOOTP directory that is required. TFTP 
uses that to load the base LIC into memory via the server firmware.  I 
suspect, but have not tried, that if you already had the BOOTP directory 
built out that the TFTP and NFS bits would also work from Linux to do 
the recovery. IBM tells me they have not tested that so even if it works 
it is not supported.

When planning for a recovery one must always consider the time needed to 
complete that recovery. With that time in hand compare that to the 
tolerance the company has for downtime. This one seems to have a 
potentially very long recovery time.

	- Larry


On 6/29/2021 10:53 AM, Diego E. KESSELMAN wrote:
> ... and this is the article with the GO RESTORE 21 procedure from NFS :
>
> https://bit.ly/2TgA09j <https://bit.ly/2TgA09j>
>
> *NOTE*: Need a temporary IBM i instance to restore from network, because 
> you need to "verify" and use IBM  i BOOTP.
> Helpful on cloud environments, not sure on-prem.