I've migrated all kinds of systems from internal disk to SAN, mixed internal and SAN to all SAN, many times. I've not run into the restriction that Justin is referring to. In the end it has nothing to do with the disk protection that is on the system since that's at a layer that is well below the level that we are discussing at this point.
Last time I did it the down time was 40 minutes to migrate the load source drive. That was an eight terabyte system.
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Jim Oberholtzer
Agile Technology Architects
-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Rob Berendt
Sent: Wednesday, June 26, 2019 10:05 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: Migration data to new IBM i
I'm guessing that, instead of having all their drives in the SAN, they had some in the system unit itself.
When we migrated from P8 to P9 the only drives in the CEC were for VIOS. We didn't have a SAN but we were using external expansion units. All IBM i disk was there. Therefore it was quite easy to unplug the expansion units from the P8 to the P9 and continue on.
Rob Berendt
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-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Jim Oberholtzer
Sent: Wednesday, June 26, 2019 10:32 AM
To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: Migration data to new IBM i
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So how did mirroring stop you from migrating the data? Since I've done this many times, I'm confused about why it did not work in this case?
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Jim Oberholtzer
Agile Technology Architects
-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Justin Taylor
Sent: Wednesday, June 26, 2019 9:10 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: Migration data to new IBM i
FWIW, when we migrated from POWER7 to POWER9 in the spring, our business partner's plan called for attaching the new SAN to the POWER7 and migrating the data live. When the cut-over day came, we would move the SAN cables from the POWER7 to the POWER9 and ran a quick conversion.
Unfortunately that wouldn't work with the mirrored drives on our POWER7. We ended up doing a SAVE 21 then RESTORE 21.
HTH
-----Original Message-----
From: gio.cot via MIDRANGE-L [mailto:midrange-l@xxxxxxxxxxxxxxxxxx]
Sent: Wednesday, June 26, 2019 6:39 AM
To: midrange-l@xxxxxxxxxxxxxxxxxx
Cc: gio.cot <gio.cot@xxxxxxxxxxx>
Subject: Migration data to new IBM i
Hi all
Doe's some has got a guide to plan migration user data from an old IBM i to a new IBM i ? i have some doubt about save and restore USER IFS folder and files ; for the library i have not problem i can you use *ALLUSR parameter, but for the IFS object ? i can't save olny user folder/files .. or not
Thanks in advance
P.S. some time ago, i saw a redbook as guide to this operation .. can some have the title/link ?
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