IBM assistance made me undo hyperswap deleting the offline copy of the volumes to be flash copied.
Original Message:
Sent: Tue January 07, 2025 07:31 AM
From: Ralph Glanz
Subject: Hyperswap and Flashcopy
Your problem in my opinion is that HDFCB1 has/had no connection with IOGrp0 and you will need it, I seem to remember that with HyperSwap in connection with FC-Copy, caching and accessgroup must be on the same side, in your case this is/was I/OGrp0. You could try the addvdiskaccess command but it will fail 99% of the time.
Wouldn't it be a viable way for you to click through the wizard in the GUI and create a FlashCopy mapping where the target is not the HDFCB1 but a new volume? Of course, I don't know the dependencies and your previous attempts.
I am still on the road, when I am in the hotel I can check what I was told about this in my case.
BR Ralph
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Ralph Glanz
Original Message:
Sent: Tue January 07, 2025 07:14 AM
From: Pino Mariotto
Subject: Hyperswap and Flashcopy
I add that it seems the target volume appears as selectable only if it is created under io_grp0 but that I/O group is the one out of service.
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Pino Mariotto
Original Message:
Sent: Tue January 07, 2025 07:00 AM
From: Pino Mariotto
Subject: Hyperswap and Flashcopy
Thank you Ralph but I am a little confused, for example :
lsvdiskaccess 0
vdisk_id vdisk_name IO_group_id IO_group_name
0 HD1 0 io_grp0
0 HD1 1 io_grp1
lsvdiskaccess 40
vdisk_id vdisk_name IO_group_id IO_group_name
40 HDFCB1 1 io_grp1
I just wanto to flash copy HD1 to target HDFCB1 but when setting the mapping HDFCB1 don't show up.
I assure you that the sizes are the same
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Pino Mariotto
Original Message:
Sent: Tue January 07, 2025 02:35 AM
From: Ralph Glanz
Subject: Hyperswap and Flashcopy
Hello, if I have understood correctly, I think I had a similar problem once, in addition the system showed me the following code CMMVC8707E.
Here is what fixed my problem:
Target 1/1 before migration to hyperswap volume
1) Remove existing (external) flash copy if necessary
2) check the Access I/O group for vdisk with lsvdiskaccess , if necessary add the missing one with addvdiskaccess
3) movevdisk >> change the caching I/O group
4) addvolumecopy for Hyperswap func
5) Create required FlasCopy mappings.
I hope it helps, or at least gives you an idea.
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Ralph Glanz
Original Message:
Sent: Mon January 06, 2025 09:03 AM
From: Pino Mariotto
Subject: Hyperswap and Flashcopy
Hello,
i have two FS5200 configured in Hyperswap. Now the first FS5200 (FS5200A) is temporarely out of service do to a fire in the sita A.
Each hyperswap volume was also flash copied regularly to target volumes residing in a pool of FS5200A
To fix that , a have configured new target voumes on FS5200B but when a try to set up the flash copy relationship the new target volumes do not show up as selectable.
Below a picture of the current state one of one the source volumes to be flash copied
Anyone can help ?
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Pino Mariotto
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